container/init: measure init behaviour

This used to be entirely done via integration tests, with almost no hope of error injection and coverage profile. These tests significantly increase confidence of future work in this area.

Signed-off-by: Ophestra <cat@gensokyo.uk>

1 files changed, 2539 insertions, 0 deletions

diff --git a/container/init_test.go b/container/init_test.go
new file mode 100644
index 00000000..de165dab
--- /dev/null
+++ b/container/init_test.go
@@ -0,0 +1,2539 @@
+package container
+
+import (
+	"os"
+	"syscall"
+	"testing"
+	"time"
+
+	"hakurei.app/container/seccomp"
+)
+
+func TestInitEntrypoint(t *testing.T) {
+	assertPrefix := func(prefix string) {
+		if prefix != "init" {
+			t.Fatalf("prepareLogger: prefix = %q", prefix)
+		}
+	}
+
+	assertVerboseFalse := func(verbose bool) {
+		if verbose {
+			t.Fatal("setVerbose: verbose = true, want false")
+		}
+	}
+	assertVerboseTrue := func(verbose bool) {
+		if !verbose {
+			t.Fatal("setVerbose: verbose = false, want true")
+		}
+	}
+
+	checkSimple(t, "initEntrypoint", []simpleTestCase{
+		{"getpid", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1 << 10, nil},
+				{"fatal", expectArgs{[]any{"this process must run as pid 1"}}, nil, nil},
+			},
+		}, nil},
+
+		{"receive bad fd", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr)}, nil, syscall.EBADF},
+				{"fatal", expectArgs{[]any{"invalid setup descriptor"}}, nil, nil},
+			},
+		}, nil},
+
+		{"receive not set", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr)}, nil, ErrNotSet},
+				{"fatal", expectArgs{[]any{"HAKUREI_SETUP not set"}}, nil, nil},
+			},
+		}, nil},
+
+		{"receive payload decode", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr)}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot decode init setup payload: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"receive invalid params", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"fatal", expectArgs{[]any{"invalid setup parameters"}}, nil, nil},
+			},
+		}, nil},
+
+		{"setDumpable user", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            (*Ops)(sliceAddr(make(Ops, 1))),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot set SUID_DUMP_USER: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"writeFile uid_map", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            (*Ops)(sliceAddr(make(Ops, 1))),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, errUnique},
+				{"fatalf", expectArgs{"%v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"writeFile setgroups", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            (*Ops)(sliceAddr(make(Ops, 1))),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, errUnique},
+				{"fatalf", expectArgs{"%v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"writeFile gid_map", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            (*Ops)(sliceAddr(make(Ops, 1))),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, errUnique},
+				{"fatalf", expectArgs{"%v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"setDumpable disable", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            (*Ops)(sliceAddr(make(Ops, 1))),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot set SUID_DUMP_DISABLE: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"sethostname", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            (*Ops)(sliceAddr(make(Ops, 1))),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot set hostname: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"mount rslave root", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            (*Ops)(sliceAddr(make(Ops, 1))),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot make / rslave: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"nil op", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            (*Ops)(sliceAddr(make(Ops, 1))),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"fatalf", expectArgs{"invalid op at index %d", []any{0}}, nil, nil},
+				/* end early */
+			},
+		}, nil},
+
+		{"invalid op", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(nil, nil, BindDevice),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"fatalf", expectArgs{"invalid op at index %d", []any{0}}, nil, nil},
+				/* end early */
+			},
+		}, nil},
+
+		{"apply", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", errUnique},
+				{"printBaseErr", expectArgs{wrapErrSelf(errUnique), "cannot prepare op at index 0:"}, nil, nil},
+				{"beforeExit", expectArgs{}, nil, nil},
+				{"exit", expectArgs{1}, nil, nil},
+				/* end early */
+			},
+		}, nil},
+
+		{"mount ih", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot mount intermediate root: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"chdir ih", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot enter intermediate host path: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"mkdir sysroot", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, errUnique},
+				{"fatalf", expectArgs{"%v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"mount bind sysroot", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot bind sysroot: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"mkdir host", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, errUnique},
+				{"fatalf", expectArgs{"%v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"pivotRoot ir", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot pivot into intermediate root: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"chdir ir", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot enter intermediate root: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"apply", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, errUnique},
+				{"printBaseErr", expectArgs{wrapErrSuffix(errUnique, `cannot mount proc on "/proc/":`), "cannot apply op at index 1:"}, nil, nil},
+				{"beforeExit", expectArgs{}, nil, nil},
+				{"exit", expectArgs{1}, nil, nil},
+				/* end apply */
+			},
+		}, nil},
+
+		{"mount rprivate host", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot make host root rprivate: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"unmount host", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot unmount host root: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"open ir", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, errUnique},
+				{"fatalf", expectArgs{"cannot open intermediate root: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"chdir sysroot", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot enter sysroot: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"pivotRoot sysroot", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot pivot into sysroot: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"fchdir ir", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot re-enter intermediate root: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"unmount ir", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot unmount intermediate root: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"chdir ir", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot enter root: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"close ir", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot close intermediate root: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"capAmbientClearAll", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, nil},
+				{"capAmbientClearAll", expectArgs{}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot clear the ambient capability set: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"capBoundingSetDrop", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, nil},
+				{"capAmbientClearAll", expectArgs{}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x0)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x2)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x3)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x4)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x5)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x6)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x7)}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot drop capability from bounding set: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"capAmbientRaise", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, nil},
+				{"capAmbientClearAll", expectArgs{}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x0)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x2)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x3)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x4)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x5)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x6)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x7)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x8)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x9)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xa)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xb)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xc)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xd)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xe)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xf)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x10)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x11)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x12)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x13)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x14)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x16)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x17)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x18)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x19)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1a)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1b)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1c)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1d)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1e)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1f)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x20)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x21)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x22)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x23)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x24)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x25)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x26)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x27)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x28)}, nil, nil},
+				{"capAmbientRaise", expectArgs{uintptr(0x15)}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot raise CAP_SYS_ADMIN: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"capset", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, nil},
+				{"capAmbientClearAll", expectArgs{}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x0)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x2)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x3)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x4)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x5)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x6)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x7)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x8)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x9)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xa)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xb)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xc)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xd)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xe)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xf)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x10)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x11)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x12)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x13)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x14)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x16)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x17)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x18)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x19)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1a)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1b)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1c)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1d)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1e)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1f)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x20)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x21)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x22)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x23)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x24)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x25)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x26)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x27)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x28)}, nil, nil},
+				{"capAmbientRaise", expectArgs{uintptr(0x15)}, nil, nil},
+				{"capset", expectArgs{&capHeader{_LINUX_CAPABILITY_VERSION_3, 0}, &[2]capData{{0, 0x200000, 0x200000}, {0, 0, 0}}}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot capset: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"seccompLoad", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, nil},
+				{"capAmbientClearAll", expectArgs{}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x0)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x2)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x3)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x4)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x5)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x6)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x7)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x8)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x9)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xa)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xb)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xc)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xd)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xe)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xf)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x10)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x11)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x12)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x13)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x14)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x16)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x17)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x18)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x19)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1a)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1b)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1c)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1d)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1e)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1f)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x20)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x21)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x22)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x23)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x24)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x25)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x26)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x27)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x28)}, nil, nil},
+				{"capAmbientRaise", expectArgs{uintptr(0x15)}, nil, nil},
+				{"capset", expectArgs{&capHeader{_LINUX_CAPABILITY_VERSION_3, 0}, &[2]capData{{0, 0x200000, 0x200000}, {0, 0, 0}}}, nil, nil},
+				{"verbosef", expectArgs{"resolving presets %#x", []any{seccomp.FilterPreset(0xf)}}, nil, nil},
+				{"seccompLoad", expectArgs{seccomp.Preset(0xf, 0), seccomp.ExportFlag(0)}, nil, errUnique},
+				{"fatalf", expectArgs{"cannot load syscall filter: %v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"start", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseFalse); return nil }, [][]kexpect{
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, 0, errUnique},
+				{"verbosef", expectArgs{"cannot enable ptrace protection via Yama LSM: %v", []any{errUnique}}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei/nonexistent"),
+					Path:           MustAbs("/run/current-system/sw/bin/bash"),
+					Args:           []string{"bash", "-c", "false"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 24,
+					Gid:            1 << 47,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompDisable: true,
+					ParentPerm:     0750,
+				}, 1971, 127, 2, false}, uintptr(0x39)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("16777216 1971 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("140737488355328 127 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0750)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, nil},
+				{"capAmbientClearAll", expectArgs{}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x0)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x2)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x3)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x4)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x5)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x6)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x7)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x8)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x9)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xa)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xb)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xc)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xd)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xe)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xf)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x10)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x11)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x12)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x13)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x14)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x15)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x16)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x17)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x18)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x19)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1a)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1b)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1c)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1d)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1e)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1f)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x20)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x21)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x22)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x23)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x24)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x25)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x26)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x27)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x28)}, nil, nil},
+				{"capset", expectArgs{&capHeader{_LINUX_CAPABILITY_VERSION_3, 0}, new([2]capData)}, nil, nil},
+				{"verbose", expectArgs{[]any{"syscall filter not configured"}}, nil, nil},
+				{"newFile", expectArgs{uintptr(0x3a), "extra file 0"}, (*os.File)(nil), nil},
+				{"newFile", expectArgs{uintptr(0x3b), "extra file 1"}, (*os.File)(nil), nil},
+				{"umask", expectArgs{022}, 0, nil},
+				{"verbosef", expectArgs{"starting initial program %s", []any{MustAbs("/run/current-system/sw/bin/bash")}}, nil, nil},
+				{"start", expectArgs{"/run/current-system/sw/bin/bash", []string{"bash", "-c", "false"}, ([]string)(nil), "/.hakurei/nonexistent"}, nil, errUnique},
+				{"fatalf", expectArgs{"%v", []any{errUnique}}, nil, nil},
+			},
+		}, nil},
+
+		{"lowlastcap signaled cancel forward error", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseFalse); return nil }, [][]kexpect{
+			/* entrypoint */
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, 0, errUnique},
+				{"verbosef", expectArgs{"cannot enable ptrace protection via Yama LSM: %v", []any{errUnique}}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei/nonexistent"),
+					Path:           MustAbs("/run/current-system/sw/bin/bash"),
+					Args:           []string{"bash", "-c", "false"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Nanosecond,
+					Uid:            1 << 24,
+					Gid:            1 << 47,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompDisable: true,
+					ParentPerm:     0750,
+				}, 1971, 127, 2, false}, uintptr(0x39)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("16777216 1971 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("140737488355328 127 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(4), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0750)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, nil},
+				{"capAmbientClearAll", expectArgs{}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x0)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x2)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x3)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x4)}, nil, nil},
+				{"capset", expectArgs{&capHeader{_LINUX_CAPABILITY_VERSION_3, 0}, new([2]capData)}, nil, nil},
+				{"verbose", expectArgs{[]any{"syscall filter not configured"}}, nil, nil},
+				{"newFile", expectArgs{uintptr(0x3a), "extra file 0"}, (*os.File)(nil), nil},
+				{"newFile", expectArgs{uintptr(0x3b), "extra file 1"}, (*os.File)(nil), nil},
+				{"umask", expectArgs{022}, 0, nil},
+				{"verbosef", expectArgs{"starting initial program %s", []any{MustAbs("/run/current-system/sw/bin/bash")}}, nil, nil},
+				{"start", expectArgs{"/run/current-system/sw/bin/bash", []string{"bash", "-c", "false"}, ([]string)(nil), "/.hakurei/nonexistent"}, &os.Process{Pid: 0xbad}, nil},
+				{"suspend", expectArgs{}, nil, nil},
+				{"printf", expectArgs{"cannot close setup pipe: %v", []any{errUnique}}, nil, nil},
+				{"new", expectArgs{}, nil, nil},
+				{"notify", expectArgs{func(c chan<- os.Signal) { c <- CancelSignal }, []os.Signal{syscall.SIGINT, syscall.SIGTERM}}, nil, nil},
+				{"resume", expectArgs{}, true, nil},
+				{"verbosef", expectArgs{"%s after process start", []any{"terminated"}}, nil, nil},
+				{"verbose", expectArgs{[]any{"forwarding context cancellation"}}, nil, nil},
+				{"signal", expectArgs{"/run/current-system/sw/bin/bash", []string{"bash", "-c", "false"}, ([]string)(nil), "/.hakurei/nonexistent", os.Interrupt}, nil, errUnique},
+				{"printf", expectArgs{"cannot forward cancellation: %v", []any{errUnique}}, nil, nil},
+				{"resume", expectArgs{}, false, nil},
+				{"verbosef", expectArgs{"initial process exited with signal %s", []any{syscall.Signal(0x4e)}}, nil, nil},
+				{"printf", expectArgs{"timeout exceeded waiting for lingering processes", ([]any)(nil)}, nil, nil},
+				{"beforeExit", expectArgs{}, nil, nil},
+				{"exit", expectArgs{0xce}, nil, nil},
+			},
+
+			/* wait4 */
+			{
+				{"wait4", expectArgs{-1, syscall.WaitStatus(0xfade01ce), 0, nil}, 0xbad, nil},
+				// this terminates the goroutine at the call, preventing it from leaking while preserving behaviour
+				{"wait4", expectArgs{-1, nil, 0, nil, 0xdeadbeef}, 0, syscall.ECHILD},
+			},
+		}, nil},
+
+		{"lowlastcap signaled cancel", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseFalse); return nil }, [][]kexpect{
+			/* entrypoint */
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, 0, errUnique},
+				{"verbosef", expectArgs{"cannot enable ptrace protection via Yama LSM: %v", []any{errUnique}}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei/nonexistent"),
+					Path:           MustAbs("/run/current-system/sw/bin/bash"),
+					Args:           []string{"bash", "-c", "false"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Nanosecond,
+					Uid:            1 << 24,
+					Gid:            1 << 47,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompDisable: true,
+					ParentPerm:     0750,
+				}, 1971, 127, 2, false}, uintptr(0x39)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("16777216 1971 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("140737488355328 127 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(4), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0750)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, nil},
+				{"capAmbientClearAll", expectArgs{}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x0)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x2)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x3)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x4)}, nil, nil},
+				{"capset", expectArgs{&capHeader{_LINUX_CAPABILITY_VERSION_3, 0}, new([2]capData)}, nil, nil},
+				{"verbose", expectArgs{[]any{"syscall filter not configured"}}, nil, nil},
+				{"newFile", expectArgs{uintptr(0x3a), "extra file 0"}, (*os.File)(nil), nil},
+				{"newFile", expectArgs{uintptr(0x3b), "extra file 1"}, (*os.File)(nil), nil},
+				{"umask", expectArgs{022}, 0, nil},
+				{"verbosef", expectArgs{"starting initial program %s", []any{MustAbs("/run/current-system/sw/bin/bash")}}, nil, nil},
+				{"start", expectArgs{"/run/current-system/sw/bin/bash", []string{"bash", "-c", "false"}, ([]string)(nil), "/.hakurei/nonexistent"}, &os.Process{Pid: 0xbad}, nil},
+				{"suspend", expectArgs{}, nil, nil},
+				{"printf", expectArgs{"cannot close setup pipe: %v", []any{errUnique}}, nil, nil},
+				{"new", expectArgs{}, nil, nil},
+				{"notify", expectArgs{func(c chan<- os.Signal) { c <- os.Interrupt }, []os.Signal{syscall.SIGINT, syscall.SIGTERM}}, nil, nil},
+				{"resume", expectArgs{}, false, nil},
+				{"verbosef", expectArgs{"got %s", []any{"interrupt"}}, nil, nil},
+				{"beforeExit", expectArgs{}, nil, nil},
+				{"exit", expectArgs{0}, nil, nil},
+			},
+
+			/* wait4 */
+			{
+				// this terminates the goroutine at the call, preventing it from leaking while preserving behaviour
+				{"wait4", expectArgs{-1, nil, 0, nil, 0xdeadbeef}, 0, syscall.ECHILD},
+			},
+		}, nil},
+
+		{"lowlastcap signaled timeout", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseFalse); return nil }, [][]kexpect{
+			/* entrypoint */
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, 0, errUnique},
+				{"verbosef", expectArgs{"cannot enable ptrace protection via Yama LSM: %v", []any{errUnique}}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei/nonexistent"),
+					Path:           MustAbs("/run/current-system/sw/bin/bash"),
+					Args:           []string{"bash", "-c", "false"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Nanosecond,
+					Uid:            1 << 24,
+					Gid:            1 << 47,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompDisable: true,
+					ParentPerm:     0750,
+				}, 1971, 127, 2, false}, uintptr(0x39)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("16777216 1971 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("140737488355328 127 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(4), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0750)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, nil},
+				{"capAmbientClearAll", expectArgs{}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x0)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x2)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x3)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x4)}, nil, nil},
+				{"capset", expectArgs{&capHeader{_LINUX_CAPABILITY_VERSION_3, 0}, new([2]capData)}, nil, nil},
+				{"verbose", expectArgs{[]any{"syscall filter not configured"}}, nil, nil},
+				{"newFile", expectArgs{uintptr(0x3a), "extra file 0"}, (*os.File)(nil), nil},
+				{"newFile", expectArgs{uintptr(0x3b), "extra file 1"}, (*os.File)(nil), nil},
+				{"umask", expectArgs{022}, 0, nil},
+				{"verbosef", expectArgs{"starting initial program %s", []any{MustAbs("/run/current-system/sw/bin/bash")}}, nil, nil},
+				{"start", expectArgs{"/run/current-system/sw/bin/bash", []string{"bash", "-c", "false"}, ([]string)(nil), "/.hakurei/nonexistent"}, &os.Process{Pid: 0xbad}, nil},
+				{"suspend", expectArgs{}, nil, nil},
+				{"printf", expectArgs{"cannot close setup pipe: %v", []any{errUnique}}, nil, nil},
+				{"new", expectArgs{}, nil, nil},
+				{"notify", expectArgs{nil, []os.Signal{syscall.SIGINT, syscall.SIGTERM}}, nil, nil},
+				{"resume", expectArgs{}, true, nil},
+				{"verbosef", expectArgs{"initial process exited with signal %s", []any{syscall.Signal(0x4e)}}, nil, nil},
+				{"printf", expectArgs{"timeout exceeded waiting for lingering processes", ([]any)(nil)}, nil, nil},
+				{"beforeExit", expectArgs{}, nil, nil},
+				{"exit", expectArgs{0xce}, nil, nil},
+			},
+
+			/* wait4 */
+			{
+				{"wait4", expectArgs{-1, syscall.WaitStatus(0xfade01ce), 0, nil}, 0xbad, nil},
+				// this terminates the goroutine at the call, preventing it from leaking while preserving behaviour
+				{"wait4", expectArgs{-1, nil, 0, nil, 0xdeadbeef}, 0, syscall.ECHILD},
+			},
+		}, nil},
+
+		{"lowlastcap signaled", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseFalse); return nil }, [][]kexpect{
+			/* entrypoint */
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, 0, errUnique},
+				{"verbosef", expectArgs{"cannot enable ptrace protection via Yama LSM: %v", []any{errUnique}}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei/nonexistent"),
+					Path:           MustAbs("/run/current-system/sw/bin/bash"),
+					Args:           []string{"bash", "-c", "false"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 24,
+					Gid:            1 << 47,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompDisable: true,
+					ParentPerm:     0750,
+				}, 1971, 127, 2, false}, uintptr(0x39)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("16777216 1971 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("140737488355328 127 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(4), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0750)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, nil},
+				{"capAmbientClearAll", expectArgs{}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x0)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x2)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x3)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x4)}, nil, nil},
+				{"capset", expectArgs{&capHeader{_LINUX_CAPABILITY_VERSION_3, 0}, new([2]capData)}, nil, nil},
+				{"verbose", expectArgs{[]any{"syscall filter not configured"}}, nil, nil},
+				{"newFile", expectArgs{uintptr(0x3a), "extra file 0"}, (*os.File)(nil), nil},
+				{"newFile", expectArgs{uintptr(0x3b), "extra file 1"}, (*os.File)(nil), nil},
+				{"umask", expectArgs{022}, 0, nil},
+				{"verbosef", expectArgs{"starting initial program %s", []any{MustAbs("/run/current-system/sw/bin/bash")}}, nil, nil},
+				{"start", expectArgs{"/run/current-system/sw/bin/bash", []string{"bash", "-c", "false"}, ([]string)(nil), "/.hakurei/nonexistent"}, &os.Process{Pid: 0xbad}, nil},
+				{"suspend", expectArgs{}, nil, nil},
+				{"printf", expectArgs{"cannot close setup pipe: %v", []any{errUnique}}, nil, nil},
+				{"new", expectArgs{}, nil, nil},
+				{"notify", expectArgs{nil, []os.Signal{syscall.SIGINT, syscall.SIGTERM}}, nil, nil},
+				{"resume", expectArgs{}, true, nil},
+				{"verbosef", expectArgs{"initial process exited with signal %s", []any{syscall.Signal(0x4e)}}, nil, nil},
+				{"beforeExit", expectArgs{}, nil, nil},
+				{"exit", expectArgs{0xce}, nil, nil},
+			},
+
+			/* wait4 */
+			{
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, syscall.WaitStatus(0xdeaf), 0, nil}, 0xbabe, nil},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, syscall.WaitStatus(0xfade01ce), 0, nil}, 0xbad, nil},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, syscall.WaitStatus(0xdeaf), 0, nil}, 0xbabe, nil},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.ENOMEM},
+				{"printf", expectArgs{"unexpected wait4 response: %v", []any{syscall.ENOMEM}}, nil, nil},
+			},
+		}, nil},
+
+		{"strangewait nopriv notty noseccomp yamafault", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseFalse); return nil }, [][]kexpect{
+			/* entrypoint */
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, 0, errUnique},
+				{"verbosef", expectArgs{"cannot enable ptrace protection via Yama LSM: %v", []any{errUnique}}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei/nonexistent"),
+					Path:           MustAbs("/run/current-system/sw/bin/bash"),
+					Args:           []string{"bash", "-c", "false"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 24,
+					Gid:            1 << 47,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompDisable: true,
+					ParentPerm:     0750,
+				}, 1971, 127, 2, false}, uintptr(0x39)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("16777216 1971 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("140737488355328 127 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0750)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, nil},
+				{"capAmbientClearAll", expectArgs{}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x0)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x2)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x3)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x4)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x5)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x6)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x7)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x8)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x9)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xa)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xb)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xc)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xd)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xe)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xf)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x10)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x11)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x12)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x13)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x14)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x15)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x16)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x17)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x18)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x19)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1a)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1b)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1c)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1d)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1e)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1f)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x20)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x21)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x22)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x23)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x24)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x25)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x26)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x27)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x28)}, nil, nil},
+				{"capset", expectArgs{&capHeader{_LINUX_CAPABILITY_VERSION_3, 0}, new([2]capData)}, nil, nil},
+				{"verbose", expectArgs{[]any{"syscall filter not configured"}}, nil, nil},
+				{"newFile", expectArgs{uintptr(0x3a), "extra file 0"}, (*os.File)(nil), nil},
+				{"newFile", expectArgs{uintptr(0x3b), "extra file 1"}, (*os.File)(nil), nil},
+				{"umask", expectArgs{022}, 0, nil},
+				{"verbosef", expectArgs{"starting initial program %s", []any{MustAbs("/run/current-system/sw/bin/bash")}}, nil, nil},
+				{"start", expectArgs{"/run/current-system/sw/bin/bash", []string{"bash", "-c", "false"}, ([]string)(nil), "/.hakurei/nonexistent"}, &os.Process{Pid: 0xbad}, nil},
+				{"suspend", expectArgs{}, nil, nil},
+				{"printf", expectArgs{"cannot close setup pipe: %v", []any{errUnique}}, nil, nil},
+				{"new", expectArgs{}, nil, nil},
+				{"notify", expectArgs{nil, []os.Signal{syscall.SIGINT, syscall.SIGTERM}}, nil, nil},
+				{"resume", expectArgs{}, true, nil},
+				{"verbosef", expectArgs{"initial process exited with code %d", []any{1}}, nil, nil},
+				{"beforeExit", expectArgs{}, nil, nil},
+				{"exit", expectArgs{1}, nil, nil},
+			},
+
+			/* wait4 */
+			{
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, syscall.WaitStatus(0xdeaf), 0, nil}, 0xbabe, nil},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, syscall.WaitStatus(0xfade0100), 0, nil}, 0xbad, nil},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, syscall.WaitStatus(0xdeaf), 0, nil}, 0xbabe, nil},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.ENOMEM},
+				{"printf", expectArgs{"unexpected wait4 response: %v", []any{syscall.ENOMEM}}, nil, nil},
+			},
+		}, nil},
+
+		{"success", func(k syscallDispatcher) error { initEntrypoint(k, assertPrefix, assertVerboseTrue); return nil }, [][]kexpect{
+			/* entrypoint */
+			{
+				{"lockOSThread", expectArgs{}, nil, nil},
+				{"getpid", expectArgs{}, 1, nil},
+				{"setPtracer", expectArgs{uintptr(0)}, nil, nil},
+				{"receive", expectArgs{"HAKUREI_SETUP", new(initParams), new(uintptr), &initParams{Params{
+					Dir:            MustAbs("/.hakurei"),
+					Env:            []string{"DISPLAY=:0"},
+					Path:           MustAbs("/bin/zsh"),
+					Args:           []string{"zsh", "-c", "exec vim"},
+					ForwardCancel:  true,
+					AdoptWaitDelay: 5 * time.Second,
+					Uid:            1 << 32,
+					Gid:            1 << 31,
+					Hostname:       "hakurei-check",
+					Ops:            new(Ops).Bind(MustAbs("/"), MustAbs("/"), BindDevice).Proc(MustAbs("/proc/")),
+					SeccompRules:   make([]seccomp.NativeRule, 0),
+					SeccompPresets: seccomp.PresetStrict,
+					RetainSession:  true,
+					Privileged:     true,
+				}, 1000, 100, 3, true}, uintptr(9)}, errUnique, nil},
+				{"verbose", expectArgs{[]any{"received setup parameters"}}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(1)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/uid_map", []byte("4294967296 1000 1\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/setgroups", []byte("deny\n"), os.FileMode(0)}, nil, nil},
+				{"writeFile", expectArgs{"/proc/self/gid_map", []byte("2147483648 100 1\n"), os.FileMode(0)}, nil, nil},
+				{"setDumpable", expectArgs{uintptr(0)}, nil, nil},
+				{"umask", expectArgs{0}, 022, nil},
+				{"sethostname", expectArgs{[]byte("hakurei-check")}, nil, nil},
+				{"lastcap", expectArgs{}, uintptr(40), nil},
+				{"mount", expectArgs{"", "/", "", uintptr(0x8c000), ""}, nil, nil},
+				/* begin early */
+				{"evalSymlinks", expectArgs{"/"}, "/", nil},
+				/* end early */
+				{"mount", expectArgs{"rootfs", "/proc/self/fd", "tmpfs", uintptr(6), ""}, nil, nil},
+				{"chdir", expectArgs{"/proc/self/fd"}, nil, nil},
+				{"mkdir", expectArgs{"sysroot", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"sysroot", "sysroot", "", uintptr(0xd000), ""}, nil, nil},
+				{"mkdir", expectArgs{"host", os.FileMode(0755)}, nil, nil},
+				{"pivotRoot", expectArgs{"/proc/self/fd", "host"}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				/* begin apply */
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &BindMountOp{sourceFinal: MustAbs("/"), Source: MustAbs("/"), Target: MustAbs("/"), Flags: BindDevice}}}, nil, nil},
+				{"stat", expectArgs{"/host"}, isDirFi(true), nil},
+				{"mkdirAll", expectArgs{"/sysroot", os.FileMode(0700)}, nil, nil},
+				{"bindMount", expectArgs{"/host", "/sysroot", uintptr(0x4001), false}, nil, nil},
+				{"verbosef", expectArgs{"%s %s", []any{"mounting", &MountProcOp{Target: MustAbs("/proc/")}}}, nil, nil},
+				{"mkdirAll", expectArgs{"/sysroot/proc", os.FileMode(0755)}, nil, nil},
+				{"mount", expectArgs{"proc", "/sysroot/proc", "proc", uintptr(0xe), ""}, nil, nil},
+				/* end apply */
+				{"mount", expectArgs{"host", "host", "", uintptr(0x4c000), ""}, nil, nil},
+				{"unmount", expectArgs{"host", 2}, nil, nil},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, syscall.EINTR},
+				{"open", expectArgs{"/", 0x10000, uint32(0)}, 1 << 35, nil},
+				{"chdir", expectArgs{"/sysroot"}, nil, nil},
+				{"pivotRoot", expectArgs{".", "."}, nil, nil},
+				{"fchdir", expectArgs{1 << 35}, nil, nil},
+				{"unmount", expectArgs{".", 2}, nil, nil},
+				{"chdir", expectArgs{"/"}, nil, nil},
+				{"close", expectArgs{1 << 35}, nil, nil},
+				{"capAmbientClearAll", expectArgs{}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x0)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x2)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x3)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x4)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x5)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x6)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x7)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x8)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x9)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xa)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xb)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xc)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xd)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xe)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0xf)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x10)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x11)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x12)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x13)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x14)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x16)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x17)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x18)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x19)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1a)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1b)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1c)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1d)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1e)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x1f)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x20)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x21)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x22)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x23)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x24)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x25)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x26)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x27)}, nil, nil},
+				{"capBoundingSetDrop", expectArgs{uintptr(0x28)}, nil, nil},
+				{"capAmbientRaise", expectArgs{uintptr(0x15)}, nil, nil},
+				{"capset", expectArgs{&capHeader{_LINUX_CAPABILITY_VERSION_3, 0}, &[2]capData{{0, 0x200000, 0x200000}, {0, 0, 0}}}, nil, nil},
+				{"verbosef", expectArgs{"resolving presets %#x", []any{seccomp.FilterPreset(0xf)}}, nil, nil},
+				{"seccompLoad", expectArgs{seccomp.Preset(0xf, 0), seccomp.ExportFlag(0)}, nil, nil},
+				{"verbosef", expectArgs{"%d filter rules loaded", []any{73}}, nil, nil},
+				{"newFile", expectArgs{uintptr(10), "extra file 0"}, (*os.File)(nil), nil},
+				{"newFile", expectArgs{uintptr(11), "extra file 1"}, (*os.File)(nil), nil},
+				{"newFile", expectArgs{uintptr(12), "extra file 2"}, (*os.File)(nil), nil},
+				{"umask", expectArgs{022}, 0, nil},
+				{"verbosef", expectArgs{"starting initial program %s", []any{MustAbs("/bin/zsh")}}, nil, nil},
+				{"start", expectArgs{"/bin/zsh", []string{"zsh", "-c", "exec vim"}, []string{"DISPLAY=:0"}, "/.hakurei"}, &os.Process{Pid: 0xcafe}, nil},
+				{"suspend", expectArgs{}, nil, nil},
+				{"printf", expectArgs{"cannot close setup pipe: %v", []any{errUnique}}, nil, nil},
+				{"new", expectArgs{}, nil, nil},
+				{"notify", expectArgs{nil, []os.Signal{syscall.SIGINT, syscall.SIGTERM}}, nil, nil},
+				{"resume", expectArgs{}, true, nil},
+				{"verbosef", expectArgs{"initial process exited with status %#x", []any{syscall.WaitStatus(0xfade007f)}}, nil, nil},
+				{"beforeExit", expectArgs{}, nil, nil},
+				{"exit", expectArgs{0xff}, nil, nil},
+			},
+
+			/* wait4 */
+			{
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, syscall.WaitStatus(0xdeaf), 0, nil}, 0xbabe, nil},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, syscall.WaitStatus(0xfade007f), 0, nil}, 0xcafe, nil},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.EINTR},
+				{"wait4", expectArgs{-1, syscall.WaitStatus(0xdeaf), 0, nil}, 0xbabe, nil},
+				{"wait4", expectArgs{-1, nil, 0, nil}, 0, syscall.ECHILD},
+			},
+		}, nil},
+	})
+}
+
+func TestOpsGrow(t *testing.T) {
+	ops := new(Ops)
+	ops.Grow(1 << 4)
+	if got := cap(*ops); got == 0 {
+		t.Error("Grow: cap did not increase")
+	}
+}