// every time fixLongPath is called with a relative path, so we use a cache.
		// Note that getwdCache might be outdated if the working directory has been
		// changed without using os.Chdir, i.e. using syscall.Chdir directly or cgo.
		// This is fine, as the worst that can happen is that we fail to fix the path.
		getwdCache.Lock()
		if getwdCache.dir == "" {
			// Init the working directory cache.

	// If there is no SysProcAttr (ie. no Chroot or changed
	// UID/GID), double-check existence of the directory we want
	// to chdir into. We can make the error clearer this way.
	if attr != nil && attr.Sys == nil && attr.Dir != "" {
		if _, err := Stat(attr.Dir); err != nil {
			pe := err.(*PathError)
			pe.Op = "chdir"
			return nil, pe
		}
	}

	sysattr := &syscall.ProcAttr{
		Dir: attr.Dir,
		Env: attr.Env,

	l.add("getenv", key)
}

func (l *testLog) Open(name string) {
	l.add("open", name)
}

func (l *testLog) Stat(name string) {
	l.add("stat", name)
}

func (l *testLog) Chdir(name string) {
	l.add("chdir", name)
}

// add adds the (op, name) pair to the test log.
func (l *testLog) add(op, name string) {
	if strings.Contains(name, "\n") || name == "" {
		return
	}

	l.mu.Lock()

	testMkdirAllAtRoot(t, volName)
}

func TestRemoveAllLongPathRelative(t *testing.T) {
	// Test that RemoveAll doesn't hang with long relative paths.
	// See go.dev/issue/36375.
	tmp := t.TempDir()
	chdir(t, tmp)
	dir := filepath.Join(tmp, "foo", "bar", strings.Repeat("a", 150), strings.Repeat("b", 150))
	err := os.MkdirAll(dir, 0755)
	if err != nil {
		t.Fatal(err)
	}
	err = os.RemoveAll("foo")
	if err != nil {

// duplicate file descriptors.
func dupCloseOnExecOld(fd int) (int, string, error) {
	return -1, "dup", syscall.ENOSYS
}

// Fchdir wraps syscall.Fchdir.
func (fd *FD) Fchdir() error {
	if err := fd.incref(); err != nil {
		return err
	}
	defer fd.decref()
	return syscall.Chdir(fd.Path)
}

// ReadDir wraps syscall.ReadDir.
// We treat this like an ordinary system call rather than a call

  </mailingLists>
  <developers>
    <developer>
      <id>jvanzyl</id>
      <name>Jason van Zyl</name>
      <email>******@****.***</email>
      <organization>ASF</organization>
      <roles>
        <role>PMC Chair</role>
      </roles>
      <timezone>-5</timezone>
    </developer>
    <developer>
      <id>brett</id>
      <name>Brett Porter</name>
      <email>******@****.***</email>
      <organization>ASF</organization>