WARNING: DATA RACE Write at 0x00c000b23900 by goroutine 349: gvisor.googlesource.com/gvisor/pkg/sentry/fs.Rename() pkg/sentry/fs/dirent.go:1634 +0x634 gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.renameAt.func1.1() pkg/sentry/syscalls/linux/sys_file.go:1880 +0x1f9 DIAGNOSIS: I0404 13:13:06.742725 48580 x:0] *************************** I0404 13:13:06.742861 48580 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-1] I0404 13:13:06.742943 48580 x:0] Version release-20190304.1-85-gefe4461d74a1 I0404 13:13:06.742985 48580 x:0] PID: 48580 I0404 13:13:06.743017 48580 x:0] UID: 0, GID: 0 I0404 13:13:06.743052 48580 x:0] Configuration: I0404 13:13:06.743108 48580 x:0] RootDir: /syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root I0404 13:13:06.743135 48580 x:0] Platform: ptrace I0404 13:13:06.743179 48580 x:0] FileAccess: exclusive, overlay: true I0404 13:13:06.743221 48580 x:0] Network: host, logging: false I0404 13:13:06.743255 48580 x:0] Strace: false, max size: 1024, syscalls: [] I0404 13:13:06.743311 48580 x:0] *************************** D0404 13:13:06.744052 48580 x:0] Load container "/syzkaller/managers/kvm-direct-overlay-host-race/workdir/gvisor_root" "ci-gvisor-kvm-direct-overlay-host-race-1" D0404 13:13:06.752554 48580 x:0] Signal container "ci-gvisor-kvm-direct-overlay-host-race-1": signal 0 D0404 13:13:06.752643 48580 x:0] Signal sandbox "ci-gvisor-kvm-direct-overlay-host-race-1" D0404 13:13:06.752704 48580 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-1" D0404 13:13:06.753111 48580 x:0] urpc: successfully marshalled 120 bytes. D0404 13:13:06.761641 48580 x:0] urpc: unmarshal success. I0404 13:13:06.761750 48580 x:0] Found sandbox "ci-gvisor-kvm-direct-overlay-host-race-1", PID: 24702 I0404 13:13:06.761800 48580 x:0] Retrieving sandbox stacks D0404 13:13:06.761820 48580 x:0] Stacks sandbox "ci-gvisor-kvm-direct-overlay-host-race-1" D0404 13:13:06.761849 48580 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-overlay-host-race-1" D0404 13:13:06.761964 48580 x:0] urpc: successfully marshalled 36 bytes. D0404 13:13:06.936474 48580 x:0] urpc: unmarshal success. I0404 13:13:06.936695 48580 x:0] *** Stack dump *** goroutine 548392 [running]: gvisor.googlesource.com/gvisor/pkg/log.Stacks(0x45c801, 0xc00030eea0, 0xc0010c5110, 0xc000390700) pkg/log/log.go:259 +0xb6 gvisor.googlesource.com/gvisor/runsc/boot.(*debug).Stacks(0x23e9c70, 0x23e9c70, 0xc0000f1af0, 0x0, 0x0) runsc/boot/debug.go:26 +0x38 reflect.Value.call(0xc00030eea0, 0xc000330198, 0x13, 0x1136768, 0x4, 0xc0010b7eb8, 0x3, 0x3, 0x4a864e, 0xfe6740, ...) GOROOT/src/reflect/value.go:447 +0x649 reflect.Value.Call(0xc00030eea0, 0xc000330198, 0x13, 0xc0010b7eb8, 0x3, 0x3, 0x0, 0x23e9c70, 0x16) GOROOT/src/reflect/value.go:308 +0xc1 gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleOne(0xc00032e090, 0xc000acff50, 0x0, 0x0) pkg/urpc/urpc.go:325 +0x63f gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleRegistered(0xc00032e090, 0xc000acff50, 0xc00032e090, 0xc000acff50) pkg/urpc/urpc.go:420 +0x43 gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).StartHandling.func1(0xc00032e090, 0xc000acff50) 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, 6 minutes]: sync.runtime_Semacquire(0xc0002c0264) GOROOT/src/runtime/sema.go:56 +0x39 sync.(*WaitGroup).Wait(0xc0002c0264) GOROOT/src/sync/waitgroup.go:130 +0xb2 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Kernel).WaitExited(...) pkg/sentry/kernel/kernel.go:820 gvisor.googlesource.com/gvisor/runsc/boot.(*Loader).WaitExit(0xc0002be140, 0x0, 0x0) runsc/boot/loader.go:781 +0x74 gvisor.googlesource.com/gvisor/runsc/cmd.(*Boot).Execute(0xc0001a22d0, 0x12c8ec0, 0xc0000ce008, 0xc000106b40, 0xc0001af120, 0x2, 0x2, 0x0) runsc/cmd/boot.go:252 +0x12e4 github.com/google/subcommands.(*Commander).Execute(0xc000132000, 0x12c8ec0, 0xc0000ce008, 0xc0001af120, 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:238 +0x2473