WARNING: DATA RACE Read at 0x00c001693d80 by goroutine 486: gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*Dirent).fullName() pkg/sentry/fs/dirent.go:246 +0x6d gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*Dirent).FullName() pkg/sentry/fs/dirent.go:356 +0x8b DIAGNOSIS: I0331 20:00:40.200976 52860 x:0] *************************** I0331 20:00:40.201661 52860 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-0] I0331 20:00:40.201740 52860 x:0] Git Revision: a046054ba35e8d8c4882f9311dc964eaa1497d58 I0331 20:00:40.201760 52860 x:0] PID: 52860 I0331 20:00:40.201779 52860 x:0] UID: 0, GID: 0 I0331 20:00:40.201798 52860 x:0] Configuration: I0331 20:00:40.201820 52860 x:0] RootDir: /syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root I0331 20:00:40.201891 52860 x:0] Platform: ptrace I0331 20:00:40.201964 52860 x:0] FileAccess: exclusive, overlay: true I0331 20:00:40.202025 52860 x:0] Network: host, logging: false I0331 20:00:40.202096 52860 x:0] Strace: false, max size: 1024, syscalls: [] I0331 20:00:40.202177 52860 x:0] *************************** D0331 20:00:40.204695 52860 x:0] Load container "/syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root" "ci-gvisor-kvm-direct-overlay-host-race-0" D0331 20:00:40.216547 52860 x:0] Signal container "ci-gvisor-kvm-direct-overlay-host-race-0": signal 0 D0331 20:00:40.216699 52860 x:0] Signal sandbox "ci-gvisor-kvm-direct-overlay-host-race-0" D0331 20:00:40.216803 52860 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-0" D0331 20:00:40.217544 52860 x:0] urpc: successfully marshalled 120 bytes. D0331 20:00:40.222796 52860 x:0] urpc: unmarshal success. I0331 20:00:40.222904 52860 x:0] Found sandbox "ci-gvisor-kvm-direct-overlay-host-race-0", PID: 65095 I0331 20:00:40.222979 52860 x:0] Retrieving sandbox stacks D0331 20:00:40.222996 52860 x:0] Stacks sandbox "ci-gvisor-kvm-direct-overlay-host-race-0" D0331 20:00:40.223030 52860 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-0" D0331 20:00:40.224509 52860 x:0] urpc: successfully marshalled 36 bytes. D0331 20:00:40.532272 52860 x:0] urpc: unmarshal success. I0331 20:00:40.535597 52860 x:0] *** Stack dump *** goroutine 2131315 [running]: gvisor.googlesource.com/gvisor/pkg/log.Stacks(0x45c801, 0xc0002b6960, 0xc002e60c90, 0xc001112a80) pkg/log/log.go:259 +0xb6 gvisor.googlesource.com/gvisor/runsc/boot.(*debug).Stacks(0x23cfc78, 0x23cfc78, 0xc0015b00e0, 0x0, 0x0) runsc/boot/debug.go:26 +0x38 reflect.Value.call(0xc0002b6960, 0xc000010ae0, 0x13, 0x112796b, 0x4, 0xc002d7deb8, 0x3, 0x3, 0x4a864e, 0xfda2e0, ...) GOROOT/src/reflect/value.go:447 +0x649 reflect.Value.Call(0xc0002b6960, 0xc000010ae0, 0x13, 0xc002d7deb8, 0x3, 0x3, 0x0, 0x23cfc78, 0x16) GOROOT/src/reflect/value.go:308 +0xc1 gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleOne(0xc00025f8c0, 0xc002e279e0, 0x0, 0x0) pkg/urpc/urpc.go:325 +0x63f gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleRegistered(0xc00025f8c0, 0xc002e279e0, 0xc00025f8c0, 0xc002e279e0) pkg/urpc/urpc.go:420 +0x43 gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).StartHandling.func1(0xc00025f8c0, 0xc002e279e0) 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, 21 minutes]: sync.runtime_Semacquire(0xc000290124) GOROOT/src/runtime/sema.go:56 +0x39 sync.(*WaitGroup).Wait(0xc000290124) GOROOT/src/sync/waitgroup.go:130 +0xb2 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Kernel).WaitExited(...) pkg/sentry/kernel/kernel.go:817 gvisor.googlesource.com/gvisor/runsc/boot.(*Loader).WaitExit(0xc0002368c0, 0x0, 0x0) runsc/boot/loader.go:781 +0x74 gvisor.googlesource.com/gvisor/runsc/cmd.(*Boot).Execute(0xc00023e120, 0x12b88a0, 0xc0000ce008, 0xc000106a20, 0xc0001ad0c0, 0x2, 0x2, 0x0) runsc/cmd/boot.go:252 +0x12e4 github.com/google/subcommands.(*Commander).Execute(0xc000132000, 0x12b88a0, 0xc0000ce008, 0xc0001ad0c0, 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:231 +0x2438