"asyncPreempt":       abi.FuncID_asyncPreempt,
	"cgocallback":        abi.FuncID_cgocallback,
	"corostart":          abi.FuncID_corostart,
	"debugCallV2":        abi.FuncID_debugCallV2,
	"gcBgMarkWorker":     abi.FuncID_gcBgMarkWorker,
	"rt0_go":             abi.FuncID_rt0_go,
	"goexit":             abi.FuncID_goexit,
	"gogo":               abi.FuncID_gogo,
	"gopanic":            abi.FuncID_gopanic,

	// function, which cannot access the G's stack. It is unused outside of
	// gcBgMarkWorker().
	m muintptr
}

func gcBgMarkWorker(ready chan struct{}) {
	gp := getg()

	// We pass node to a gopark unlock function, so it can't be on
	// the stack (see gopark). Prevent deadlock from recursively
	// starting GC by disabling preemption.
	gp.m.preemptoff = "GC worker init"

	var (
		hasSchedWaitTime    bool
		hasSyncBlockTime    bool
		hasGCMarkAssistTime bool
	)

	assertContainsGoroutine(t, summaries, "runtime.gcBgMarkWorker")
	assertContainsGoroutine(t, summaries, "main.main.func1")

	for _, summary := range summaries {
		basicGoroutineSummaryChecks(t, summary)
		hasSchedWaitTime = hasSchedWaitTime || summary.SchedWaitTime > 0

	}

	if debug.gcshrinkstackoff > 0 {
		return
	}
	f := findfunc(gp.startpc)
	if f.valid() && f.funcID == abi.FuncID_gcBgMarkWorker {
		// We're not allowed to shrink the gcBgMarkWorker
		// stack (see gcBgMarkWorker for explanation).
		return
	}

	oldsize := gp.stack.hi - gp.stack.lo
	newsize := oldsize / 2
	// Don't shrink the allocation below the minimum-sized stack
	// allocation.

//
//go:linkname goarmsoftfp

var (
	// Pool of GC parked background workers. Entries are type
	// *gcBgMarkWorkerNode.
	gcBgMarkWorkerPool lfstack

	// Total number of gcBgMarkWorker goroutines. Protected by worldsema.
	gcBgMarkWorkerCount int32

	// Information about what cpu features are available.
	// Packages outside the runtime should not use these
	// as they are not an external api.

					// or may not be labeled depending on
					// which part of the function they are
					// at.
					mayBeLabeled = true
				case "runtime.bgsweep", "runtime.bgscavenge", "runtime.forcegchelper", "runtime.gcBgMarkWorker", "runtime.runfinq", "runtime.sysmon":
					// Runtime system goroutines or threads
					// (such as those identified by
					// runtime.isSystemGoroutine). These
					// should never be labeled.

String id=104
	data="/usr/local/google/home/mknyszek/work/go-1/src/runtime/trace2cpu.go"
String id=105
	data="runtime.gcBgMarkStartWorkers"
String id=106
	data="runtime.gcStart"
String id=107
	data="runtime.gcBgMarkWorker"
String id=108
	data="internal/poll.(*FD).Accept"
String id=109
	data="net.(*netFD).accept"
String id=110
	data="net.(*TCPListener).accept"
String id=111
	data="net.(*TCPListener).Accept"

String id=59
	data="runtime.(*mcache).nextFree"
String id=60
	data="runtime.gopark"
String id=61
	data="/usr/local/google/home/mknyszek/work/go-1/src/runtime/proc.go"
String id=62
	data="runtime.gcBgMarkWorker"
String id=63
	data="runtime.gcParkAssist"
String id=64
	data="runtime.systemstack_switch"
String id=65
	data="/usr/local/google/home/mknyszek/work/go-1/src/runtime/asm_amd64.s"
String id=66