}

    def "can unlock a resource that is already unlocked"() {
        when:
        coordinationService.withStateLock(unlock(resourceLock))

        then:
        noExceptionThrown()
        !resourceLock.doIsLocked()
        !resourceLock.doIsLockedByCurrentThread()
    }

    def "cannot lock a resource that is already locked by another thread"() {
        when:
        async {

apiVersion: release-notes/v2
kind: bug-fix
area: installation
issue:
- 48112
releaseNotes:
- |

	}
	n := len(entries) / int(gomaxprocs)
	if n < 8 {
		n = 8
	}
	if delay != 0 {
		mp.blocked = true
	}
	if stdcall6(_GetQueuedCompletionStatusEx, iocphandle, uintptr(unsafe.Pointer(&entries[0])), uintptr(n), uintptr(unsafe.Pointer(&n)), uintptr(wait), 0) == 0 {
		mp.blocked = false
		errno := getlasterror()
		if errno == _WAIT_TIMEOUT {
			return gList{}, 0
		}

// will send SIGTRAP to thread ID tid. gp must be locked to its OS thread and
// running.
//
// On success, InjectDebugCall returns the panic value of fn or nil.
// If fn did not panic, its results will be available in args.
func InjectDebugCall(gp *g, fn any, regArgs *abi.RegArgs, stackArgs any, tkill func(tid int) error, returnOnUnsafePoint bool) (any, error) {
	if gp.lockedm == 0 {
		return nil, plainError("goroutine not locked to thread")

                role
        );
        instance.addMutationValidator(rootComponentMetadataBuilder.getValidator());
        return instance;
    }

    /**
     * Creates a new locked resolvable configuration instance.
     */
    DefaultResolvableConfiguration createResolvable(
        String name,
        ConfigurationsProvider configurationsProvider,

				sum := c.add(uint64(n))
				debugPrintf("Add %q += %d: count=%d\n", c.name, n, sum)
			}
			c.releaseReader(state)
			return

		case state.locked():
			if !c.state.update(&state, state.addExtra(uint64(n))) {
				continue
			}
			debugPrintf("Add %q += %d: locked extra=%d\n", c.name, n, state.extra())
			return

		case !state.havePtr():
			if !c.state.update(&state, state.addExtra(uint64(n)).setLocked()) {

// the most recent [Chdir] called in any goroutine. It's called internally
// before executing any syscall which uses a relative pathname. Must
// be called with the goroutine locked to the OS thread, to prevent
// rescheduling on a different thread (potentially with a different
// working directory) before the syscall is executed.
func Fixwd() {
	wdmu.Lock()
	defer wdmu.Unlock()
	fixwdLocked()
}

            }
            start {
                coordinationService.withStateLock(lock(resource))
                instant.locked
                thread.blockUntil.worker1Started
                registry.runAsWorkerThread {
                    thread.block()
                    instant.unlocked
                    coordinationService.withStateLock(unlock(resource))
                }
            }
        }

apiVersion: release-notes/v2
kind: feature
area: installation
issue:
  - 48746
releaseNotes:
  - |
    **Fixed** an issue causing Istio CNI to stop functioning on minimal/locked down nodes (such as no `sh` binary).
    The new logic runs with no external dependencies, and will attempt to continue if errors are encountered (which could be caused by things like SELinux rules).

	"strings"
	"sync"
	"syscall"
	"testing"
	"time"
	"unsafe"
)

func init() {
	if runtime.Sigisblocked(int(syscall.SIGQUIT)) {
		// We can't use SIGQUIT to kill subprocesses because
		// it's blocked. Use SIGKILL instead. See issue
		// #19196 for an example of when this happens.
		testenv.Sigquit = syscall.SIGKILL
	}
}

func TestBadOpen(t *testing.T) {