panic: WARNING: circular locking detected: tmpfs.inodeMutex -> mm.mappingRWMutex: goroutine 757 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc00025fbb0, 0xc000864b58) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x326 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc00025f8c0, 0xc00025fb90, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x505 gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc00025f8c0, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x390 gvisor.dev/gvisor/pkg/sentry/mm.(*mappingRWMutex).RLock(0xc00127805c) bazel-out/k8-fastbuild/bin/pkg/sentry/mm/mapping_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc001278008, {0x2061a40, 0xc001670008}, {0x485195?, 0x2cc05a8?}, {0x1?, 0x0?, 0x0?}, 0x0, 0xc000865080) pkg/sentry/mm/io.go:544 +0x145 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc001278008, {0x2061a40, 0xc001670008}, {0x0?, 0x0?, 0x0?, 0xc0017f7080?}, {0x1, 0x0, 0x0}, ...) pkg/sentry/mm/io.go:606 +0x8ae gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyInTo(0xc001278008, {0x2061a40, 0xc001670008}, {0x0?, 0x4?, 0x484ca9?, 0xc000865130?}, {0x203e3e0, 0xc0017f7080}, {0x0, ...}) pkg/sentry/mm/io.go:324 +0x2f0 gvisor.dev/gvisor/pkg/usermem.IOSequence.CopyInTo({{0x20586d8, 0xc001278008}, {0x0, 0x1, 0x20000200, 0x806000}, {0x0, 0x1}}, {0x2061a40, 0xc001670008}, ...) pkg/usermem/usermem.go:516 +0xcf gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).pwrite(0xc001b89100, {0x2061a40, 0xc001670008}, {{0x20586d8, 0xc001278008}, {0x0, 0x1, 0x20000200, 0x806000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:553 +0x91b gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).Write(0xc001b89100, {0x2061a40, 0xc001670008}, {{0x20586d8, 0xc001278008}, {0x0, 0x1, 0x20000200, 0x806000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:570 +0x12a gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc001b89100, {0x2061a40, 0xc001670008}, {{0x20586d8, 0xc001278008}, {0x0, 0x1, 0x20000200, 0x806000}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:679 +0x145 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write(0xc001670008, 0xc001b89100, {{0x20586d8, 0xc001278008}, {0x0, 0x1, 0x20000200, 0x806000}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:347 +0xa5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write(0xc001670008, 0x4af8cf?, {{0x4}, {0x20000200}, {0x806000}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x38f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001670008, 0x1, {{0x4}, {0x20000200}, {0x806000}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0xb9f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001670008, 0x1, {{0x4}, {0x20000200}, {0x806000}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001670008, 0x1, {{0x4}, {0x20000200}, {0x806000}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001670008) pkg/sentry/kernel/task_syscall.go:258 +0x54a gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001670008?, 0xc001670008) pkg/sentry/kernel/task_run.go:269 +0x2295 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001670008, 0x7c) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 728 pkg/sentry/kernel/task_start.go:400 +0x185 known lock chain: mm.mappingRWMutex -> tmpfs.filesystemRWMutex -> tmpfs.inodeMutex ====== mm.mappingRWMutex -> tmpfs.filesystemRWMutex ===== goroutine 498 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystemRWMutex).RLock(0xc0006ca7b8) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/filesystem_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).StatAt(0xc0006ca750, {0x2061bf0, 0xc0009e0000}, 0xc001446d88, {0x15d6358?, 0x30000000?}) pkg/sentry/fsimpl/tmpfs/filesystem.go:760 +0xa8 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Stat(0xc00147c1c0, {0x2061bf0, 0xc0009e0000}, {0x1a6c050?, 0x0?}) pkg/sentry/vfs/file_description.go:540 +0x322 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DeviceID(0xc00147c1c0) pkg/sentry/vfs/file_description.go:823 +0x65 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).appendVMAMapsEntryLocked(0x485195?, {0x2061bf0, 0xc0009e0000}, {0xc001454008?, 0xc001383368?}, 0xc00159bf60) pkg/sentry/mm/procfs.go:118 +0x19d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).vmaMapsEntryLocked(0xc00144c008, {0x2061bf0, 0xc0009e0000}, {0xc001454008?, 0x47906e?}) pkg/sentry/mm/procfs.go:104 +0xcf gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).DebugString(0xc00144c008, {0x2061bf0, 0xc0009e0000}) pkg/sentry/mm/debug.go:49 +0x1a5 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).String(0xc00144c008) pkg/sentry/mm/debug.go:38 +0x45 fmt.(*pp).handleMethods(0xc0015d6270, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:673 +0x6eb fmt.(*pp).printArg(0xc0015d6270, {0x1e350e0, 0xc00144c008}, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:756 +0xb4c fmt.(*pp).doPrintf(0xc0015d6270, {0xc0014bb6e0, 0x24}, {0xc00159bed0, 0x1, 0x1}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:1074 +0x5d0 fmt.Sprintf({0xc0014bb6e0, 0x24}, {0xc00159bed0, 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({0xc001383ab0?}, 0x3, 0x2, {0x2cc0160?, 0x1?, 0x2de31c0?}, {0xc0014bb6e0, 0x24}, {0xc00159bed0, 0x1, ...}) pkg/log/glog.go:82 +0x32a gvisor.dev/gvisor/pkg/log.(*BasicLogger).DebugfAtDepth(0xc00068c4e0, 0x2, {0xc0014bb6e0, 0x24}, {0xc00159bed0, 0x1, 0x1}) pkg/log/log.go:220 +0x128 gvisor.dev/gvisor/pkg/log.DebugfAtDepth(0x1, {0xc0014bb6e0, 0x24}, {0xc00159bed0, 0x1, 0x1}) pkg/log/log.go:295 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Debugf(0xc0012b0c88, {0x1e48a08, 0xc}, {0xc00159bed0, 0x1, 0x1}) pkg/sentry/kernel/task_log.go:54 +0xcd gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).DebugDumpState(0xc0012b0c88) pkg/sentry/kernel/task_log.go:71 +0x11c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0012b0c88?, 0xc0012b0c88) pkg/sentry/kernel/task_run.go:313 +0x2025 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0012b0c88, 0x19) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 453 pkg/sentry/kernel/task_start.go:400 +0x185 ====== tmpfs.filesystemRWMutex -> tmpfs.inodeMutex ===== goroutine 1 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeMutex).Lock(0xc0006cd488) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_mutex.go:33 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).touchCMtime(0xc0006cd458) pkg/sentry/fsimpl/tmpfs/tmpfs.go:824 +0xb8 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).doCreateAt(0xc0006ca750, {0x2061d10, 0xc00015c1e0}, 0xc0006cf208, 0x0, 0xc0006a1c68) pkg/sentry/fsimpl/tmpfs/filesystem.go:219 +0x633 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt(0xc0006ca750, {0x2061d10, 0xc00015c1e0}, 0xc0006cf208, {0x1e49b75, 0xd}) pkg/sentry/fsimpl/tmpfs/filesystem.go:783 +0xf3 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SymlinkAt(0xc0002c71e0, {0x2061d10, 0xc00015c1e0}, 0xc000454ea0, 0xc0002462d0, {0x1e49b75, 0xd}) pkg/sentry/vfs/vfs.go:695 +0x303 gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.userspaceInit({0x2061d10, 0xc00015c1e0}, 0xc0002c71e0, 0xc000454ea0, {0xc000814790?, 0xc0006cd408?}, 0x0) pkg/sentry/fsimpl/dev/dev.go:164 +0x33e gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.FilesystemType.GetFilesystem({}, {0x2061d10, 0xc00015c1e0}, 0xc0002c71e0, 0xc000454ea0, {0x0, 0x0}, {0x1, {0x0, 0x0}, ...}) pkg/sentry/fsimpl/dev/dev.go:60 +0x36e gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).NewFilesystem(0xc0002c71e0, {0x2061d10, 0xc00015c1e0}, 0xc000454ea0, {0x0, 0x0}, {0x1e4017d, 0x3}, 0xc0006c7440) pkg/sentry/vfs/mount.go:252 +0x1d4 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountDisconnected(0xc0002c71e0, {0x2061d10, 0xc00015c1e0}, 0xc000454ea0, {0x0, 0x0}, {0x1e4017d, 0x3}, 0xc0006c7440) pkg/sentry/vfs/mount.go:271 +0xc5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountAt(0xc0002c71e0, {0x2061d10, 0xc00015c1e0}, 0xc000454ea0, {0x0, 0x0}, 0xc0006a2520, {0x1e4017d, 0x3}, 0xc0006c7440) pkg/sentry/vfs/mount.go:632 +0xe5 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmount(0xc000a7a4e0, {0x2061d10, 0xc00015c1e0}, 0xc0005802d0, 0xc0004fcf08, 0xc0009e1230, 0xc000454ea0, 0xc00024a208) runsc/boot/vfs.go:850 +0xb52 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmounts(0xc000a7a4e0, {0x2061d10, 0xc00015c1e0}, 0xc0005802d0, 0xc0004fcf08, 0xc0009e1230, 0xc000454ea0) runsc/boot/vfs.go:739 +0x9ed gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountAll(0xc000a7a4e0, {0x2061d10, 0xc00015c1e0}, 0xc000454ea0, 0xc0005802d0, 0xc0004fcf08, 0xc000a7a5b0) runsc/boot/vfs.go:468 +0x585 gvisor.dev/gvisor/runsc/boot.setupContainerVFS({0x2061d10, 0xc000988700}, 0xc0004ec298, 0xc000a7a4e0, 0xc0004ec2c8) runsc/boot/vfs.go:177 +0x2ce gvisor.dev/gvisor/runsc/boot.(*Loader).createContainerProcess(0xc0004ec288, 0xc0004ec298) runsc/boot/loader.go:1159 +0xb1b gvisor.dev/gvisor/runsc/boot.(*Loader).run(0xc0004ec288) runsc/boot/loader.go:917 +0x372 gvisor.dev/gvisor/runsc/boot.(*Loader).Run(0xc0004ec288) runsc/boot/loader.go:865 +0x2f gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc000184700, {0xc000040348?, 0x11?}, 0xc00041ff10, {0xc000234300, 0x2, 0xc000234300?}) runsc/cmd/boot.go:564 +0x3525 github.com/google/subcommands.(*Commander).Execute(0xc0002a8000, {0x2051310, 0x3d43c60}, {0xc000234300, 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