WARNING: DATA RACE
Write at 0x00c0016aa958 by goroutine 121:
  sync/atomic.CompareAndSwapInt32()
      bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/linux_amd64_static_race_stripped/stdlib%/src/runtime/race_amd64.s:293 +0xb
DIAGNOSIS:
I0307 06:24:44.922226   64467 x:0] ***************************
I0307 06:24:44.922619   64467 x:0] Args: [/syzkaller/managers/ptrace-proxy-sandbox-race/current/image -root /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root -watchdog-action=panic -network=none -debug -platform=ptrace -file-access=shared -network=sandbox debug -stacks ci-gvisor-ptrace-proxy-sandbox-race-2]
I0307 06:24:44.922811   64467 x:0] Git Revision: 0b76887147820a809beaa497ede8dc4f7b7b120a
I0307 06:24:44.923013   64467 x:0] PID: 64467
I0307 06:24:44.923142   64467 x:0] UID: 0, GID: 0
I0307 06:24:44.923181   64467 x:0] Configuration:
I0307 06:24:44.923220   64467 x:0] 		RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root
I0307 06:24:44.923280   64467 x:0] 		Platform: ptrace
I0307 06:24:44.923352   64467 x:0] 		FileAccess: shared, overlay: false
I0307 06:24:44.923425   64467 x:0] 		Network: sandbox, logging: false
I0307 06:24:44.923454   64467 x:0] 		Strace: false, max size: 1024, syscalls: []
I0307 06:24:44.923530   64467 x:0] ***************************
D0307 06:24:44.923650   64467 x:0] Load container "/syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root" "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0307 06:24:44.932576   64467 x:0] Signal container "ci-gvisor-ptrace-proxy-sandbox-race-2": signal 0
D0307 06:24:44.932725   64467 x:0] Signal sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0307 06:24:44.932778   64467 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0307 06:24:44.933523   64467 x:0] urpc: successfully marshalled 117 bytes.
D0307 06:24:44.944351   64467 x:0] urpc: unmarshal success.
I0307 06:24:44.944549   64467 x:0] Found sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2", PID: 22707
I0307 06:24:44.944698   64467 x:0] Retrieving sandbox stacks
D0307 06:24:44.944741   64467 x:0] Stacks sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0307 06:24:44.944813   64467 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0307 06:24:44.945094   64467 x:0] urpc: successfully marshalled 36 bytes.
D0307 06:24:45.319207   64467 x:0] urpc: unmarshal success.
I0307 06:24:45.319639   64467 x:0]      *** Stack dump ***
goroutine 1482145 [running]:
gvisor.googlesource.com/gvisor/pkg/log.Stacks(0x459c01, 0xc0002d13e0, 0xc001640ba0, 0xc000c61c00)
	pkg/log/log.go:259 +0xb6
gvisor.googlesource.com/gvisor/runsc/boot.(*debug).Stacks(0x23767e8, 0x23767e8, 0xc0016d4000, 0x0, 0x0)
	runsc/boot/debug.go:26 +0x38
reflect.Value.call(0xc0002d13e0, 0xc0002ce208, 0x13, 0x10eb560, 0x4, 0xc000e7beb8, 0x3, 0x3, 0x4a4dee, 0xfa25c0, ...)
	GOROOT/src/reflect/value.go:447 +0x63f
reflect.Value.Call(0xc0002d13e0, 0xc0002ce208, 0x13, 0xc000e7beb8, 0x3, 0x3, 0x0, 0x23767e8, 0x16)
	GOROOT/src/reflect/value.go:308 +0xc1
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleOne(0xc0002e4840, 0xc001a4cbd0, 0x0, 0x0)
	pkg/urpc/urpc.go:325 +0x63f
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleRegistered(0xc0002e4840, 0xc001a4cbd0, 0xc0002e4840, 0xc001a4cbd0)
	pkg/urpc/urpc.go:420 +0x43
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).StartHandling.func1(0xc0002e4840, 0xc001a4cbd0)
	pkg/urpc/urpc.go:440 +0x77
created by gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).StartHandling
	pkg/urpc/urpc.go:438 +0x6f

goroutine 1 [semacquire, 18 minutes]:
sync.runtime_Semacquire(0xc0002d2214)
	GOROOT/src/runtime/sema.go:56 +0x39
sync.(*WaitGroup).Wait(0xc0002d2214)
	GOROOT/src/sync/waitgroup.go:130 +0xb2
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Kernel).WaitExited(...)
	pkg/sentry/kernel/kernel.go:813
gvisor.googlesource.com/gvisor/runsc/boot.(*Loader).WaitExit(0xc0002e0140, 0x0, 0x0)
	runsc/boot/loader.go:756 +0x74
gvisor.googlesource.com/gvisor/runsc/cmd.(*Boot).Execute(0xc00026c120, 0x1270a60, 0xc00013c010, 0xc000142b40, 0xc0001c3080, 0x2, 0x2, 0x0)
	runsc/cmd/boot.go:236 +0x1191
github.com/google/subcommands.(*Commander).Execute(0xc000148000, 0x1270a60, 0xc00013c010, 0xc0001c3080, 0x2, 0x2, 0x203000)
	external/com_github_google_subcommands/subcommands.go:141 +0x522
github.com/google/subcommands.Execute(...)
	external/com_github_google_subcommands/subcommands.go:371
main.main()
	runsc/main.go:227 +0x240b