WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package preemption

import (
	"context"
	"fmt"
	"sort"
	"testing"

	"github.com/google/go-cmp/cmp"
	v1 "k8s.io/api/core/v1"
	policy "k8s.io/api/policy/v1"
	"k8s.io/apimachinery/pkg/runtime"

			s.SetPlugin(pl.Name())
			if s.Code() == framework.UnschedulableAndUnresolvable {
				// In this case, the preemption shouldn't happen in this scheduling cycle.
				// So, no need to execute all PreFilter.
				return nil, s
			}
			if s.Code() == framework.Unschedulable {
				// In this case, the preemption should happen later in this scheduling cycle.
				// So we need to execute all PreFilter.

//go:nosplit
func acquirem() *m {
	gp := getg()
	gp.m.locks++
	return gp.m
}

//go:nosplit
func releasem(mp *m) {
	gp := getg()
	mp.locks--
	if mp.locks == 0 && gp.preempt {
		// restore the preemption request in case we've cleared it in newstack
		gp.stackguard0 = stackPreempt
	}
}

// reflect_typelinks is meant for package reflect,
// but widely used packages access it using linkname.

    # system-node-critical, it is better to configure this in order to make sure your Istio pods
    # will not be killed because of low priority class.
    # Refer to https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass
    # for more detail.
    priorityClassName: ""
    proxy:
      image: proxyv2
      # This controls the 'policy' in the sidecar injector.
      autoInject: enabled

    # system-node-critical, it is better to configure this in order to make sure your Istio pods
    # will not be killed because of low priority class.
    # Refer to https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass
    # for more detail.
    priorityClassName: ""

    proxy:
      image: proxyv2

      # This controls the 'policy' in the sidecar injector.
      autoInject: enabled

	}
}

func TestGCTestMoveStackOnNextCall(t *testing.T) {
	t.Parallel()
	var onStack int
	// GCTestMoveStackOnNextCall can fail in rare cases if there's
	// a preemption. This won't happen many times in quick
	// succession, so just retry a few times.
	for retry := 0; retry < 5; retry++ {
		runtime.GCTestMoveStackOnNextCall()

//
// frameSize is the total size of the argument frame at stackArgs and must
// therefore be >= stackArgsSize. It must include additional space for spilling
// register arguments for stack growth and preemption.
//
// TODO(mknyszek): Once we don't need the additional spill space, remove frameSize,
// since frameSize will be redundant with stackArgsSize.
//

	// then release mheap_.lock.
	allArenas []arenaIdx

	// sweepArenas is a snapshot of allArenas taken at the
	// beginning of the sweep cycle. This can be read safely by
	// simply blocking GC (by disabling preemption).
	sweepArenas []arenaIdx

	// markArenas is a snapshot of allArenas taken at the beginning
	// of the mark cycle. Because allArenas is append-only, neither

			yield()
			continue
		}

		// While we have gp1.goroutineProfiled set to
		// goroutineProfileInProgress, gp1 may appear _Grunnable but will not
		// actually be able to run. Disable preemption for ourselves, to make
		// sure we finish profiling gp1 right away instead of leaving it stuck
		// in this limbo.
		mp := acquirem()

	// src is on our stack, dst is a slot on another stack.

	// Once we read sg.elem out of sg, it will no longer
	// be updated if the destination's stack gets copied (shrunk).
	// So make sure that no preemption points can happen between read & use.
	dst := sg.elem
	typeBitsBulkBarrier(t, uintptr(dst), uintptr(src), t.Size_)
	// No need for cgo write barrier checks because dst is always
	// Go memory.