WARNING: DATA RACE
DIAGNOSIS:
I0320 16:31:50.736732   41498 x:0] ***************************
I0320 16:31:50.736934   41498 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-1]
I0320 16:31:50.737047   41498 x:0] Git Revision: cea1dd7d21b976ad5cb145b94be7b1bf879235be
I0320 16:31:50.737102   41498 x:0] PID: 41498
I0320 16:31:50.737149   41498 x:0] UID: 0, GID: 0
I0320 16:31:50.737169   41498 x:0] Configuration:
I0320 16:31:50.737184   41498 x:0] 		RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root
I0320 16:31:50.737247   41498 x:0] 		Platform: ptrace
I0320 16:31:50.737320   41498 x:0] 		FileAccess: shared, overlay: false
I0320 16:31:50.737405   41498 x:0] 		Network: sandbox, logging: false
I0320 16:31:50.737456   41498 x:0] 		Strace: false, max size: 1024, syscalls: []
I0320 16:31:50.737511   41498 x:0] ***************************
D0320 16:31:50.739420   41498 x:0] Load container "/syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root" "ci-gvisor-ptrace-proxy-sandbox-race-1"
D0320 16:31:50.760855   41498 x:0] Signal container "ci-gvisor-ptrace-proxy-sandbox-race-1": signal 0
D0320 16:31:50.761026   41498 x:0] Signal sandbox "ci-gvisor-ptrace-proxy-sandbox-race-1"
D0320 16:31:50.762111   41498 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-1"
D0320 16:31:50.763159   41498 x:0] urpc: successfully marshalled 117 bytes.
D0320 16:31:50.769313   41498 x:0] urpc: unmarshal success.
I0320 16:31:50.769648   41498 x:0] Found sandbox "ci-gvisor-ptrace-proxy-sandbox-race-1", PID: 25258
I0320 16:31:50.769774   41498 x:0] Retrieving sandbox stacks
D0320 16:31:50.769822   41498 x:0] Stacks sandbox "ci-gvisor-ptrace-proxy-sandbox-race-1"
D0320 16:31:50.771310   41498 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-1"
D0320 16:31:50.771773   41498 x:0] urpc: successfully marshalled 36 bytes.
D0320 16:31:51.660353   41498 x:0] urpc: unmarshal success.
I0320 16:31:51.660807   41498 x:0]      *** Stack dump ***
goroutine 2680704 [running]:
gvisor.googlesource.com/gvisor/pkg/log.Stacks(0x45c801, 0xc0002ab0e0, 0xc00392aa50, 0xc001baae00)
	pkg/log/log.go:259 +0xb6
gvisor.googlesource.com/gvisor/runsc/boot.(*debug).Stacks(0x238ca78, 0x238ca78, 0xc0000f3170, 0x0, 0x0)
	runsc/boot/debug.go:26 +0x38
reflect.Value.call(0xc0002ab0e0, 0xc0002a81f8, 0x13, 0x10fed68, 0x4, 0xc001075eb8, 0x3, 0x3, 0x4a864e, 0xfb4be0, ...)
	GOROOT/src/reflect/value.go:447 +0x649
reflect.Value.Call(0xc0002ab0e0, 0xc0002a81f8, 0x13, 0xc001075eb8, 0x3, 0x3, 0x0, 0x238ca78, 0x16)
	GOROOT/src/reflect/value.go:308 +0xc1
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleOne(0xc0002ba840, 0xc0075bc240, 0x0, 0x0)
	pkg/urpc/urpc.go:325 +0x63f
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleRegistered(0xc0002ba840, 0xc0075bc240, 0xc0002ba840, 0xc0075bc240)
	pkg/urpc/urpc.go:420 +0x43
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).StartHandling.func1(0xc0002ba840, 0xc0075bc240)
	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, 44 minutes]:
sync.runtime_Semacquire(0xc0002ac214)
	GOROOT/src/runtime/sema.go:56 +0x39
sync.(*WaitGroup).Wait(0xc0002ac214)
	GOROOT/src/sync/waitgroup.go:130 +0xb2
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Kernel).WaitExited(...)
	pkg/sentry/kernel/kernel.go:809
gvisor.googlesource.com/gvisor/runsc/boot.(*Loader).WaitExit(0xc0002a4140, 0x0, 0x0)
	runsc/boot/loader.go:781 +0x74
gvisor.googlesource.com/gvisor/runsc/cmd.(*Boot).Execute(0xc000238120, 0x12861c0, 0xc0000d0008, 0xc000116b40, 0xc0001a70a0, 0x2, 0x2, 0x0)
	runsc/cmd/boot.go:236 +0x10f5
github.com/google/subcommands.(*Commander).Execute(0xc00012c000, 0x12861c0, 0xc0000d0008, 0xc0001a70a0, 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:229 +0x23da