WARNING: DATA RACE DIAGNOSIS: I0312 02:33:54.459120 49459 x:0] *************************** I0312 02:33:54.459248 49459 x:0] Args: [/syzkaller/managers/kvm-direct-overlay-host-race/current/image -root /syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root -watchdog-action=panic -network=none -debug -platform=ptrace -file-access=exclusive -overlay -network=host debug -stacks ci-gvisor-kvm-direct-overlay-host-race-2] I0312 02:33:54.459314 49459 x:0] Git Revision: bc9b979b9412ad5852872c1a9bee462f73d2455e I0312 02:33:54.459332 49459 x:0] PID: 49459 I0312 02:33:54.459351 49459 x:0] UID: 0, GID: 0 I0312 02:33:54.459374 49459 x:0] Configuration: I0312 02:33:54.459388 49459 x:0] RootDir: /syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root I0312 02:33:54.459404 49459 x:0] Platform: ptrace I0312 02:33:54.459431 49459 x:0] FileAccess: exclusive, overlay: true I0312 02:33:54.459454 49459 x:0] Network: host, logging: false I0312 02:33:54.459475 49459 x:0] Strace: false, max size: 1024, syscalls: [] I0312 02:33:54.459497 49459 x:0] *************************** D0312 02:33:54.459568 49459 x:0] Load container "/syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root" "ci-gvisor-kvm-direct-overlay-host-race-2" D0312 02:33:54.467772 49459 x:0] Signal container "ci-gvisor-kvm-direct-overlay-host-race-2": signal 0 D0312 02:33:54.467953 49459 x:0] Signal sandbox "ci-gvisor-kvm-direct-overlay-host-race-2" D0312 02:33:54.468114 49459 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-2" D0312 02:33:54.468986 49459 x:0] urpc: successfully marshalled 120 bytes. D0312 02:33:54.478718 49459 x:0] urpc: unmarshal success. I0312 02:33:54.479238 49459 x:0] Found sandbox "ci-gvisor-kvm-direct-overlay-host-race-2", PID: 30562 I0312 02:33:54.479641 49459 x:0] Retrieving sandbox stacks D0312 02:33:54.479813 49459 x:0] Stacks sandbox "ci-gvisor-kvm-direct-overlay-host-race-2" D0312 02:33:54.479974 49459 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-2" D0312 02:33:54.480530 49459 x:0] urpc: successfully marshalled 36 bytes. D0312 02:33:54.759153 49459 x:0] urpc: unmarshal success. I0312 02:33:54.771933 49459 x:0] *** Stack dump *** goroutine 51657 [running]: gvisor.googlesource.com/gvisor/pkg/log.Stacks(0x45c001, 0xc00011ecc0, 0xc0004418c0, 0xc0007f8000) pkg/log/log.go:259 +0xb6 gvisor.googlesource.com/gvisor/runsc/boot.(*debug).Stacks(0x23a8a78, 0x23a8a78, 0xc000b1e090, 0x0, 0x0) runsc/boot/debug.go:26 +0x38 reflect.Value.call(0xc00011ecc0, 0xc0002a01c8, 0x13, 0x110be05, 0x4, 0xc000aa3eb8, 0x3, 0x3, 0x4a765e, 0xfbfba0, ...) GOROOT/src/reflect/value.go:447 +0x63f reflect.Value.Call(0xc00011ecc0, 0xc0002a01c8, 0x13, 0xc000aa3eb8, 0x3, 0x3, 0x0, 0x23a8a78, 0x16) GOROOT/src/reflect/value.go:308 +0xc1 gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleOne(0xc000286660, 0xc000441740, 0x0, 0x0) pkg/urpc/urpc.go:325 +0x63f gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleRegistered(0xc000286660, 0xc000441740, 0xc000286660, 0xc000441740) pkg/urpc/urpc.go:420 +0x43 gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).StartHandling.func1(0xc000286660, 0xc000441740) 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, 3 minutes]: sync.runtime_Semacquire(0xc0002a2264) GOROOT/src/runtime/sema.go:56 +0x39 sync.(*WaitGroup).Wait(0xc0002a2264) 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(0xc0002ac140, 0x0, 0x0) runsc/boot/loader.go:757 +0x74 gvisor.googlesource.com/gvisor/runsc/cmd.(*Boot).Execute(0xc0001a61b0, 0x1294a60, 0xc0000d0008, 0xc000134ae0, 0xc0001b30e0, 0x2, 0x2, 0x0) runsc/cmd/boot.go:236 +0x1191 github.com/google/subcommands.(*Commander).Execute(0xc000136000, 0x1294a60, 0xc0000d0008, 0xc0001b30e0, 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 +0x246f