// pointer maps for all frames on the stack. The caller must hold the
// _Gscan bit for gp or must be running gp itself.
func isShrinkStackSafe(gp *g) bool {
	// We can't copy the stack if we're in a syscall.
	// The syscall might have pointers into the stack and
	// often we don't have precise pointer maps for the innermost
	// frames.
	if gp.syscallsp != 0 {
		return false
	}

		profiling.

	/memory/classes/total:bytes
		All memory mapped by the Go runtime into the current process
		as read-write. Note that this does not include memory mapped
		by code called via cgo or via the syscall package. Sum of all
		metrics in /memory/classes.

	/sched/gomaxprocs:threads
		The current runtime.GOMAXPROCS setting, or the number of
		operating system threads that can execute user-level Go code

to prevent dangerous behaviors. On Linux this is determined by checking for the
AT_SECURE flag in the auxiliary vector, on the BSDs and Solaris/Illumos it is
determined by checking the issetugid syscall, and on AIX it is determined by
checking if the uid/gid match the effective uid/gid.

When the runtime determines the binary is setuid/setgid-like, it does three main
things:

		nicer comments in the generated files.
	-import_runtime_cgo
		If set (which it is by default) import runtime/cgo in
		generated output.
	-import_syscall
		If set (which it is by default) import syscall in
		generated output.
	-gccgo
		Generate output for the gccgo compiler rather than the
		gc compiler.
	-gccgoprefix prefix
		The -fgo-prefix option to be used with gccgo.
	-gccgopkgpath path

	// SkipPhases is a list of phases to skip during command execution.
	// The list of phases can be obtained with the "kubeadm reset phase --help" command.
	SkipPhases []string

	// UnmountFlags is a list of unmount2() syscall flags that kubeadm can use when unmounting
	// directories during "reset". A flag can be one of: MNT_FORCE, MNT_DETACH, MNT_EXPIRE, UMOUNT_NOFOLLOW.
	// By default this list is empty.
	UnmountFlags []string

// StartCPUProfile relies on the SIGPROF signal, but that signal will
// be delivered to the main program's SIGPROF signal handler (if any)
// not to the one used by Go. To make it work, call [os/signal.Notify]
// for [syscall.SIGPROF], but note that doing so may break any profiling
// being done by the main program.
func StartCPUProfile(w io.Writer) error {
	// The runtime routines allow a variable profiling rate,

	// The list of phases can be obtained with the "kubeadm reset phase --help" command.
	// +optional
	SkipPhases []string `json:"skipPhases,omitempty"`

	// UnmountFlags is a list of unmount2() syscall flags that kubeadm can use when unmounting
	// directories during "reset". A flag can be one of: MNT_FORCE, MNT_DETACH, MNT_EXPIRE, UMOUNT_NOFOLLOW.
	// By default this list is empty.
	// +optional

		// Windows can lock up with this optimization, so we fall back to regular copy.
		sr, ok := rc.(*sendFileReader)
		if ok {
			// Sendfile sends in 4MiB chunks per sendfile syscall which is more than enough
			// for most setups.
			_, err = rf.ReadFrom(sr.Reader)
			if !xnet.IsNetworkOrHostDown(err, true) { // do not need to log disconnected clients
				storageLogIf(r.Context(), err)
			}

// mksyscall_libc.pl -aix -tags aix,ppc64 syscall_aix.go syscall_aix_ppc64.go
// Code generated by the command above; DO NOT EDIT.

//go:build aix && ppc64

package syscall

import "unsafe"

//go:cgo_import_dynamic libc_fcntl fcntl "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_Dup2 dup2 "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_pipe pipe "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_readlink readlink "libc.a/shr_64.o"

	// prepare to create subprocesses. It isn't strictly necessary for the test,
	// but helps to increase the repro rate by making it more likely that calls to
	// syscall.StartProcess for the "hang" and "exit" goroutines overlap.
	var ready sync.WaitGroup
	ready.Add(nHangs + nExits)

	for i := 0; i < nHangs; i++ {
		go func() {
			defer hangs.Done()