WARNING: DATA RACE
Read at 0x00c000508518 by goroutine 275:
  gvisor.googlesource.com/gvisor/pkg/sentry/fs/fsutil.(*InodeSimpleAttributes).UnstableAttr()
      pkg/sentry/fs/fsutil/inode.go:114 +0x91
  gvisor.googlesource.com/gvisor/pkg/sentry/fs/tmpfs.(*Dir).UnstableAttr()
      pkg/sentry/fs/tmpfs/tmpfs.go:189 +0xc1
  gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*Inode).UnstableAttr()
      pkg/sentry/fs/inode.go:247 +0x25f
  gvisor.googlesource.com/gvisor/pkg/sentry/fs.ContextCanAccessFile()
      pkg/sentry/fs/context.go:36 +0x98
  gvisor.googlesource.com/gvisor/pkg/sentry/fs/fsutil.InodeGenericChecker.Check()
      pkg/sentry/fs/fsutil/inode.go:446 +0x67
  gvisor.googlesource.com/gvisor/pkg/sentry/fs/tmpfs.(*Dir).Check()
      <autogenerated>:1 +0x7b
DIAGNOSIS:
I0125 17:07:45.858409   63211 x:0] ***************************
I0125 17:07:45.858556   63211 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-3]
I0125 17:07:45.858661   63211 x:0] Git Revision: cc995207531965b70bc1b812a70b91f242a92086
I0125 17:07:45.858683   63211 x:0] PID: 63211
I0125 17:07:45.858707   63211 x:0] UID: 0, GID: 0
I0125 17:07:45.858735   63211 x:0] Configuration:
I0125 17:07:45.858766   63211 x:0] 		RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root
I0125 17:07:45.858808   63211 x:0] 		Platform: ptrace
I0125 17:07:45.858833   63211 x:0] 		FileAccess: shared, overlay: false
I0125 17:07:45.858891   63211 x:0] 		Network: sandbox, logging: false
I0125 17:07:45.858919   63211 x:0] 		Strace: false, max size: 1024, syscalls: []
I0125 17:07:45.858946   63211 x:0] ***************************
D0125 17:07:45.859001   63211 x:0] Load container "/syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root" "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0125 17:07:45.862465   63211 x:0] Signal container "ci-gvisor-ptrace-proxy-sandbox-race-3": signal 0
D0125 17:07:45.862575   63211 x:0] Signal sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0125 17:07:45.862627   63211 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0125 17:07:45.863349   63211 x:0] urpc: successfully marshalled 117 bytes.
D0125 17:07:45.864183   63211 x:0] urpc: unmarshal success.
I0125 17:07:45.864294   63211 x:0] Found sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3", PID: 62744
I0125 17:07:45.864358   63211 x:0] Retrieving sandbox stacks
D0125 17:07:45.864380   63211 x:0] Stacks sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0125 17:07:45.864441   63211 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0125 17:07:45.864559   63211 x:0] urpc: successfully marshalled 36 bytes.
D0125 17:07:45.966692   63211 x:0] urpc: unmarshal success.
I0125 17:07:45.966798   63211 x:0]      *** Stack dump ***
goroutine 3136 [running]:
gvisor.googlesource.com/gvisor/pkg/log.Stacks(0x459e01, 0x28, 0x45d3f2, 0x4e466d)
	pkg/log/log.go:259 +0xd1
gvisor.googlesource.com/gvisor/runsc/boot.(*debug).Stacks(0x22e11f8, 0x22e11f8, 0xc0000f0190, 0x0, 0x0)
	runsc/boot/debug.go:26 +0x38
reflect.Value.call(0xc0003141e0, 0xc00013c2b0, 0x13, 0x10d4223, 0x4, 0xc0003c1e68, 0x3, 0x3, 0x4f058e, 0xf8ffe0, ...)
	GOROOT/src/reflect/value.go:447 +0x635
reflect.Value.Call(0xc0003141e0, 0xc00013c2b0, 0x13, 0xc0003c1e68, 0x3, 0x3, 0x0, 0x22e11f8, 0x16)
	GOROOT/src/reflect/value.go:308 +0xc1
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleOne(0xc00028ed80, 0xc00031e720, 0x0, 0x0)
	pkg/urpc/urpc.go:298 +0x613
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleRegistered(0xc00028ed80, 0xc00031e720, 0xc00028ed80, 0xc00031e720)
	pkg/urpc/urpc.go:393 +0x43
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).StartHandling.func1(0xc00028ed80, 0xc00031e720)
	pkg/urpc/urpc.go:413 +0x77
created by gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).StartHandling
	pkg/urpc/urpc.go:411 +0x6f

goroutine 1 [semacquire]:
sync.runtime_Semacquire(0xc000150bc4)
	GOROOT/src/runtime/sema.go:56 +0x39
sync.(*WaitGroup).Wait(0xc000150bc4)
	GOROOT/src/sync/waitgroup.go:130 +0xb5
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Kernel).WaitExited(0xc00026a780)
	pkg/sentry/kernel/kernel.go:801 +0x57
gvisor.googlesource.com/gvisor/runsc/boot.(*Loader).WaitExit(0xc00026aa00, 0x0, 0x0)
	runsc/boot/loader.go:747 +0x50
gvisor.googlesource.com/gvisor/runsc/cmd.(*Boot).Execute(0xc000274090, 0x12192e0, 0xc000138010, 0xc00013ea20, 0xc0001dd060, 0x2, 0x2, 0x0)
	runsc/cmd/boot.go:236 +0x121d
github.com/google/subcommands.(*Commander).Execute(0xc00014c000, 0x12192e0, 0xc000138010, 0xc0001dd060, 0x2, 0x2, 0x1)
	external/com_github_google_subcommands/subcommands.go:141 +0x525
github.com/google/subcommands.Execute(0x12192e0, 0xc000138010, 0xc0001dd060, 0x2, 0x2, 0xc00012ed30)
	external/com_github_google_subcommands/subcommands.go:371 +0x81
main.main()
	runsc/main.go:221 +0x1ef8