panic: WARNING: circular locking detected: tmpfs.inodeMutex -> mm.mappingRWMutex: goroutine 1136 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc00061a6e0, 0xc001b90b58) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x326 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc00061a3f0, 0xc00061a6c0, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x505 gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc00061a3f0, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x390 gvisor.dev/gvisor/pkg/sentry/mm.(*mappingRWMutex).RLock(0xc001a5605c) bazel-out/k8-fastbuild/bin/pkg/sentry/mm/mapping_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc001a56008, {0x2064700, 0xc001631908}, {0x485195?, 0x2cc35c8?}, {0x1?, 0x0?, 0x0?}, 0x0, 0xc001b91080) pkg/sentry/mm/io.go:544 +0x145 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc001a56008, {0x2064700, 0xc001631908}, {0x0?, 0x0?, 0x0?, 0xc001867350?}, {0x1, 0x0, 0x0}, ...) pkg/sentry/mm/io.go:606 +0x8ae gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyInTo(0xc001a56008, {0x2064700, 0xc001631908}, {0x0?, 0x2?, 0x484ca9?, 0xc001b91130?}, {0x2041000, 0xc001867350}, {0x0, ...}) pkg/sentry/mm/io.go:324 +0x2f0 gvisor.dev/gvisor/pkg/usermem.IOSequence.CopyInTo({{0x205b378, 0xc001a56008}, {0x0, 0x1, 0x7efd78200000, 0x1000000}, {0x0, 0x1}}, {0x2064700, 0xc001631908}, ...) pkg/usermem/usermem.go:516 +0xcf gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).pwrite(0xc0023a4e80, {0x2064700, 0xc001631908}, {{0x205b378, 0xc001a56008}, {0x0, 0x1, 0x7efd78200000, 0x1000000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:553 +0x91b gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).Write(0xc0023a4e80, {0x2064700, 0xc001631908}, {{0x205b378, 0xc001a56008}, {0x0, 0x1, 0x7efd78200000, 0x1000000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:570 +0x12a gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc0023a4e80, {0x2064700, 0xc001631908}, {{0x205b378, 0xc001a56008}, {0x0, 0x1, 0x7efd78200000, 0x1000000}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:679 +0x145 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write(0xc001631908, 0xc0023a4e80, {{0x205b378, 0xc001a56008}, {0x0, 0x1, 0x7efd78200000, 0x1000000}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:347 +0xa5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write(0xc001631908, 0x0?, {{0x3}, {0x7efd78200000}, {0x1000000}, {0x2}, {0x0}, {0x4010}}) pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x38f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001631908, 0x1, {{0x3}, {0x7efd78200000}, {0x1000000}, {0x2}, {0x0}, {0x4010}}) pkg/sentry/kernel/task_syscall.go:143 +0xb9f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001631908, 0x1, {{0x3}, {0x7efd78200000}, {0x1000000}, {0x2}, {0x0}, {0x4010}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001631908, 0x1, {{0x3}, {0x7efd78200000}, {0x1000000}, {0x2}, {0x0}, {0x4010}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001631908) pkg/sentry/kernel/task_syscall.go:258 +0x54a gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001631908?, 0xc001631908) pkg/sentry/kernel/task_run.go:269 +0x2295 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001631908, 0xb5) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 1135 pkg/sentry/kernel/task_start.go:400 +0x185 known lock chain: mm.mappingRWMutex -> tmpfs.filesystemRWMutex -> tmpfs.inodeMutex ====== mm.mappingRWMutex -> tmpfs.filesystemRWMutex ===== goroutine 1178 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystemRWMutex).RLock(0xc0008b37f8) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/filesystem_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).StatAt(0xc0008b3790, {0x20648b0, 0xc0006f5a70}, 0xc000b01b08, {0x639058?, 0x30000000?}) pkg/sentry/fsimpl/tmpfs/filesystem.go:760 +0xa8 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Stat(0xc0001d7e30, {0x20648b0, 0xc0006f5a70}, {0x48352c?, 0x0?}) pkg/sentry/vfs/file_description.go:540 +0x322 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DeviceID(0xc0001d7e30) pkg/sentry/vfs/file_description.go:823 +0x65 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).appendVMAMapsEntryLocked(0x485195?, {0x20648b0, 0xc0006f5a70}, {0xc000a70408?, 0xc000d0d368?}, 0xc0016e5310) pkg/sentry/mm/procfs.go:118 +0x19d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).vmaMapsEntryLocked(0xc000a47008, {0x20648b0, 0xc0006f5a70}, {0xc000a70408?, 0x47906e?}) pkg/sentry/mm/procfs.go:104 +0xcf gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).DebugString(0xc000a47008, {0x20648b0, 0xc0006f5a70}) pkg/sentry/mm/debug.go:49 +0x1a5 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).String(0xc000a47008) pkg/sentry/mm/debug.go:38 +0x45 fmt.(*pp).handleMethods(0xc0006389c0, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:673 +0x6eb fmt.(*pp).printArg(0xc0006389c0, {0x1e37900, 0xc000a47008}, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:756 +0xb4c fmt.(*pp).doPrintf(0xc0006389c0, {0xc000bcb3b0, 0x24}, {0xc0016e5260, 0x1, 0x1}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:1074 +0x5d0 fmt.Sprintf({0xc000bcb3b0, 0x24}, {0xc0016e5260, 0x1, 0x1}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:239 +0x5d gvisor.dev/gvisor/pkg/log.GoogleEmitter.Emit({0xc000d0dab0?}, 0x3, 0x2, {0x2cc3180?, 0x1?, 0x2de6540?}, {0xc000bcb3b0, 0x24}, {0xc0016e5260, 0x1, ...}) pkg/log/glog.go:82 +0x32a gvisor.dev/gvisor/pkg/log.(*BasicLogger).DebugfAtDepth(0xc0001b3128, 0x2, {0xc000bcb3b0, 0x24}, {0xc0016e5260, 0x1, 0x1}) pkg/log/log.go:220 +0x128 gvisor.dev/gvisor/pkg/log.DebugfAtDepth(0x1, {0xc000bcb3b0, 0x24}, {0xc0016e5260, 0x1, 0x1}) pkg/log/log.go:295 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Debugf(0xc000a0e588, {0x1e4b244, 0xc}, {0xc0016e5260, 0x1, 0x1}) pkg/sentry/kernel/task_log.go:54 +0xcd gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).DebugDumpState(0xc000a0e588) pkg/sentry/kernel/task_log.go:71 +0x11c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000a0e588?, 0xc000a0e588) pkg/sentry/kernel/task_run.go:313 +0x2025 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000a0e588, 0x9c) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 605 pkg/sentry/kernel/task_start.go:400 +0x185 ====== tmpfs.filesystemRWMutex -> tmpfs.inodeMutex ===== goroutine 1 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeMutex).Lock(0xc0008bf488) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_mutex.go:33 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).touchCMtime(0xc0008bf458) pkg/sentry/fsimpl/tmpfs/tmpfs.go:824 +0xb8 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).doCreateAt(0xc0008b3790, {0x20649d0, 0xc00085c640}, 0xc000539688, 0x0, 0xc000929c68) pkg/sentry/fsimpl/tmpfs/filesystem.go:219 +0x633 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt(0xc0008b3790, {0x20649d0, 0xc00085c640}, 0xc000539688, {0x1e4c3bd, 0xd}) pkg/sentry/fsimpl/tmpfs/filesystem.go:783 +0xf3 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SymlinkAt(0xc0001ff1e0, {0x20649d0, 0xc00085c640}, 0xc000409440, 0xc000174460, {0x1e4c3bd, 0xd}) pkg/sentry/vfs/vfs.go:695 +0x303 gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.userspaceInit({0x20649d0, 0xc00085c640}, 0xc0001ff1e0, 0xc000409440, {0xc000992840?, 0xc0008bf408?}, 0x0) pkg/sentry/fsimpl/dev/dev.go:164 +0x33e gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.FilesystemType.GetFilesystem({}, {0x20649d0, 0xc00085c640}, 0xc0001ff1e0, 0xc000409440, {0x0, 0x0}, {0x1, {0x0, 0x0}, ...}) pkg/sentry/fsimpl/dev/dev.go:60 +0x36e gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).NewFilesystem(0xc0001ff1e0, {0x20649d0, 0xc00085c640}, 0xc000409440, {0x0, 0x0}, {0x1e429bd, 0x3}, 0xc0008b8980) pkg/sentry/vfs/mount.go:252 +0x1d4 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountDisconnected(0xc0001ff1e0, {0x20649d0, 0xc00085c640}, 0xc000409440, {0x0, 0x0}, {0x1e429bd, 0x3}, 0xc0008b8980) pkg/sentry/vfs/mount.go:271 +0xc5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountAt(0xc0001ff1e0, {0x20649d0, 0xc00085c640}, 0xc000409440, {0x0, 0x0}, 0xc00092a520, {0x1e429bd, 0x3}, 0xc0008b8980) pkg/sentry/vfs/mount.go:632 +0xe5 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmount(0xc000756750, {0x20649d0, 0xc00085c640}, 0xc00025c900, 0xc000363208, 0xc00075ae10, 0xc000409440, 0xc0002a6de8) runsc/boot/vfs.go:850 +0xb52 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmounts(0xc000756750, {0x20649d0, 0xc00085c640}, 0xc00025c900, 0xc000363208, 0xc00075ae10, 0xc000409440) runsc/boot/vfs.go:739 +0x9ed gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountAll(0xc000756750, {0x20649d0, 0xc00085c640}, 0xc000409440, 0xc00025c900, 0xc000363208, 0xc000756820) runsc/boot/vfs.go:468 +0x585 gvisor.dev/gvisor/runsc/boot.setupContainerVFS({0x20649d0, 0xc00085c260}, 0xc0003ac298, 0xc000756750, 0xc0003ac2c8) runsc/boot/vfs.go:177 +0x2ce gvisor.dev/gvisor/runsc/boot.(*Loader).createContainerProcess(0xc0003ac288, 0xc0003ac298) runsc/boot/loader.go:1159 +0xb1b gvisor.dev/gvisor/runsc/boot.(*Loader).run(0xc0003ac288) runsc/boot/loader.go:917 +0x372 gvisor.dev/gvisor/runsc/boot.(*Loader).Run(0xc0003ac288) runsc/boot/loader.go:865 +0x2f gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc0004c9500, {0xc0001ae0f0?, 0x11?}, 0xc0002e7f10, {0xc0001ec420, 0x2, 0xc0001ec420?}) runsc/cmd/boot.go:564 +0x3525 github.com/google/subcommands.(*Commander).Execute(0xc0001d8000, {0x2053fb0, 0x3d46fe0}, {0xc0001ec420, 0x2, 0x2}) external/com_github_google_subcommands/subcommands.go:200 +0x684 github.com/google/subcommands.Execute(...) external/com_github_google_subcommands/subcommands.go:481 gvisor.dev/gvisor/runsc/cli.Main() runsc/cli/main.go:216 +0x210f main.main() runsc/main.go:31 +0x1d