panic: WARNING: circular locking detected: tmpfs.inodeMutex -> mm.mappingRWMutex: goroutine 8543 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc000309e80, 0xc002b8a828) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x1ea gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc000309b00, 0xc000309e60, {0xc005ee9128, 0x1, 0x1}) pkg/sync/locking/lockdep.go:112 +0x4a5 gvisor.dev/gvisor/pkg/sync/locking.checkLock.func1(0xc000309e60, 0xc002b8a9b0?) pkg/sync/locking/lockdep.go:115 +0x65 gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc000309df0, 0xc002b8aa68) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x1ea gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc000309b00, 0xc000309dd0, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x4a5 gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc000309b00, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x2ec gvisor.dev/gvisor/pkg/sentry/mm.(*mappingRWMutex).RLock(0xc00402b05c) bazel-out/k8-fastbuild/bin/pkg/sentry/mm/mapping_mutex.go:59 +0x3c gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc00402b008, {0x1f95f00, 0xc00473c008}, {0x0?, 0x484ca9?}, {0x10?, 0xb0?, 0xb8?}, 0x0, 0xc002b8b018) pkg/sentry/mm/io.go:544 +0xf8 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc00402b008, {0x1f95f00, 0xc00473c008}, {0x0?, 0xc002b8af90?, 0x7f84e32aab38?, 0x18?}, {0x1, 0x0, 0x0}, ...) pkg/sentry/mm/io.go:606 +0x6e5 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyInTo(0xc00402b008, {0x1f95f00, 0xc00473c008}, {0x0?, 0x10001?, 0x0?, 0x0?}, {0x1f72920, 0xc007e9a4f8}, {0x0, ...}) pkg/sentry/mm/io.go:324 +0x23a gvisor.dev/gvisor/pkg/usermem.IOSequence.CopyInTo(...) pkg/usermem/usermem.go:516 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).pwrite(0xc00492e600, {0x1f95f00, 0xc00473c008}, {{0x1f8c978, 0xc00402b008}, {0x0, 0x1, 0x7f584a800000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:553 +0x911 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).Write(0xc00492e600, {0x1f95f00, 0xc00473c008}, {{0x1f8c978, 0xc00402b008}, {0x0, 0x1, 0x7f584a800000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:570 +0x115 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc00492e600, {0x1f95f00, 0xc00473c008}, {{0x1f8c978, 0xc00402b008}, {0x0, 0x1, 0x7f584a800000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:679 +0x119 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write(0xc00473c008, 0xc00492e600, {{0x1f8c978, 0xc00402b008}, {0x0, 0x1, 0x7f584a800000, 0x2000}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:347 +0x91 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write(0xc00473c008, 0x0?, {{0x7}, {0x7f584a800000}, {0x2000}, {0x200002c2}, {0x0}, {0x21d}}) pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x2b2 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00473c008, 0x1, {{0x7}, {0x7f584a800000}, {0x2000}, {0x200002c2}, {0x0}, {0x21d}}) pkg/sentry/kernel/task_syscall.go:143 +0x995 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00473c008, 0x1, {{0x7}, {0x7f584a800000}, {0x2000}, {0x200002c2}, {0x0}, {0x21d}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00473c008, 0x1, {{0x7}, {0x7f584a800000}, {0x2000}, {0x200002c2}, {0x0}, {0x21d}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00473c008) pkg/sentry/kernel/task_syscall.go:258 +0x4b0 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00473c008?, 0xc00473c008) pkg/sentry/kernel/task_run.go:269 +0x1fae gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00473c008, 0xb34) pkg/sentry/kernel/task_run.go:97 +0x4fb created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 8542 pkg/sentry/kernel/task_start.go:400 +0x165 known lock chain: mm.mappingRWMutex -> tmpfs.filesystemRWMutex -> tmpfs.iterMutex -> tmpfs.inodeMutex ====== mm.mappingRWMutex -> tmpfs.filesystemRWMutex ===== goroutine 8176 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystemRWMutex).RLock(0xc0001d0d68) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/filesystem_mutex.go:59 +0x3c gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).StatAt(0xc0001d0d00, {0x1f960b0, 0xc0001e2390}, 0xc00314bb08, {0x1?, 0x0?}) pkg/sentry/fsimpl/tmpfs/filesystem.go:760 +0x97 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Stat(0xc005b34a80, {0x1f960b0, 0xc0001e2390}, {0x2c65120?, 0xc0?}) pkg/sentry/vfs/file_description.go:540 +0x2f6 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DeviceID(0xc005b34a80) pkg/sentry/vfs/file_description.go:823 +0x73 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).appendVMAMapsEntryLocked(0x483079?, {0x1f960b0, 0xc0001e2390}, {0xc001efad08?, 0xcc230a?}, 0xc002c65310) pkg/sentry/mm/procfs.go:118 +0x14b gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).vmaMapsEntryLocked(0xc001e5d008, {0x1f960b0, 0xc0001e2390}, {0xc001efad08?, 0x0?}) pkg/sentry/mm/procfs.go:104 +0xfb gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).DebugString(0xc001e5d008, {0x1f960b0, 0xc0001e2390}) pkg/sentry/mm/debug.go:49 +0x1f1 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).String(0xc001e5d008) pkg/sentry/mm/debug.go:38 +0x54 fmt.(*pp).handleMethods(0xc001466000, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:673 +0x6eb fmt.(*pp).printArg(0xc001466000, {0x1d42ca0, 0xc001e5d008}, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:756 +0xb4c fmt.(*pp).doPrintf(0xc001466000, {0xc000339860, 0x26}, {0xc003aab830, 0x1, 0x1}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:1074 +0x5d0 fmt.Sprintf({0xc000339860, 0x26}, {0xc003aab830, 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({0xc0003ca077?}, 0x3, 0x2, {0x2b9d988?, 0x484ca9?, 0x2ba1380?}, {0xc000339860, 0x26}, {0xc003aab830, 0x1, ...}) pkg/log/glog.go:82 +0x265 gvisor.dev/gvisor/pkg/log.(*BasicLogger).DebugfAtDepth(0xc0003ca060, 0x2, {0xc000339860, 0x26}, {0xc003aab830, 0x1, 0x1}) pkg/log/log.go:220 +0x104 gvisor.dev/gvisor/pkg/log.DebugfAtDepth(0x1, {0xc000339860, 0x26}, {0xc003aab830, 0x1, 0x1}) pkg/log/log.go:295 +0x79 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Debugf(0xc002f9d208, {0x1d565b0, 0xc}, {0xc003aab830, 0x1, 0x1}) pkg/sentry/kernel/task_log.go:54 +0xad gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).DebugDumpState(0xc002f9d208) pkg/sentry/kernel/task_log.go:71 +0xdd gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc002f9d208?, 0xc002f9d208) pkg/sentry/kernel/task_run.go:313 +0x1e32 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc002f9d208, 0xac5) pkg/sentry/kernel/task_run.go:97 +0x4fb created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 6006 pkg/sentry/kernel/task_start.go:400 +0x165 ====== tmpfs.filesystemRWMutex -> tmpfs.iterMutex ===== goroutine 1 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*iterMutex).Lock(0xc0001f2be0) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/iter_mutex.go:33 +0x3c gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*directory).insertChildLocked(0xc0001f2808, 0xc00017a5f0, {0x1d4daaf, 0x2}) pkg/sentry/fsimpl/tmpfs/directory.go:69 +0x18e gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt.func1(0xc0001f2808, {0x1d4daaf, 0x2}) pkg/sentry/fsimpl/tmpfs/filesystem.go:794 +0x1f1 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).doCreateAt(0xc0001d0d00, {0x1f961d0, 0xc00015c0e0}, 0xc000255b08, 0x0, 0xc000047c18) pkg/sentry/fsimpl/tmpfs/filesystem.go:210 +0x46b gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt(0xc0001d0d00, {0x1f961d0, 0xc00015c0e0}, 0xc000255b08, {0x1d57711, 0xd}) pkg/sentry/fsimpl/tmpfs/filesystem.go:783 +0xe5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SymlinkAt(0xc0002871e0, {0x1f961d0, 0xc00015c0e0}, 0xc0001992c0, 0xc000047e00, {0x1d57711, 0xd}) pkg/sentry/vfs/vfs.go:695 +0x22a gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.userspaceInit({0x1f961d0, 0xc00015c0e0}, 0xc0002871e0, 0xc0001992c0, {0xc000328dc0?, 0xc0001f2808?}, 0x0) pkg/sentry/fsimpl/dev/dev.go:164 +0x445 gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.FilesystemType.GetFilesystem({}, {0x1f961d0, 0xc00015c0e0}, 0xc0002871e0, 0xc0001992c0, {0x0, 0x0}, {0x1, {0x0, 0x0}, ...}) pkg/sentry/fsimpl/dev/dev.go:60 +0x33d gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).NewFilesystem(0xc0002871e0, {0x1f961d0, 0xc00015c0e0}, 0xc0001992c0, {0x0, 0x0}, {0x1d4dd3d, 0x3}, 0xc0001d2c40) pkg/sentry/vfs/mount.go:252 +0x198 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountDisconnected(0xc0002871e0, {0x1f961d0, 0xc00015c0e0}, 0xc0001992c0, {0x0, 0x0}, {0x1d4dd3d, 0x3}, 0xc0001d2c40) pkg/sentry/vfs/mount.go:271 +0xa5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountAt(0xc0002871e0, {0x1f961d0, 0xc00015c0e0}, 0xc0001992c0, {0x0, 0x0}, 0xc0000484f8, {0x1d4dd3d, 0x3}, 0xc0001d2c40) pkg/sentry/vfs/mount.go:632 +0xd1 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmount(0xc0008025b0, {0x1f961d0, 0xc00015c0e0}, 0xc00038c120, 0xc0003fec08, 0xc0006df230, 0xc0001992c0, 0xc0003f6488) runsc/boot/vfs.go:850 +0xb31 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmounts(0xc0008025b0, {0x1f961d0, 0xc00015c0e0}, 0xc00038c120, 0xc0003fec08, 0xc0006df230, 0xc0001992c0) runsc/boot/vfs.go:739 +0x9ed gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountAll(0xc0008025b0, {0x1f961d0, 0xc00015c0e0}, 0xc0001992c0, 0xc00038c120, 0xc0003fec08, 0xc000802680) runsc/boot/vfs.go:468 +0x530 gvisor.dev/gvisor/runsc/boot.setupContainerVFS({0x1f961d0, 0xc00015c1a0}, 0xc000332518, 0xc0008025b0, 0xc000332548) runsc/boot/vfs.go:177 +0x4ee gvisor.dev/gvisor/runsc/boot.(*Loader).createContainerProcess(0xc000332508, 0xc000332518) runsc/boot/loader.go:1159 +0xb1b gvisor.dev/gvisor/runsc/boot.(*Loader).run(0xc000332508) runsc/boot/loader.go:917 +0x345 gvisor.dev/gvisor/runsc/boot.(*Loader).Run(0xc000332508) runsc/boot/loader.go:865 +0x2f gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc000590fc0, {0xc0002360e0?, 0x11?}, 0xc0003d0070, {0xc0003f80e0, 0x2, 0xc0003f80e0?}) runsc/cmd/boot.go:564 +0x3545 github.com/google/subcommands.(*Commander).Execute(0xc000266000, {0x1f855d0, 0x3b01ee0}, {0xc0003f80e0, 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 +0x212f main.main() runsc/main.go:31 +0x1d ====== tmpfs.iterMutex -> tmpfs.inodeMutex ===== goroutine 154 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeMutex).Lock(0xc00096dc88) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_mutex.go:33 +0x3c gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).touchAtime(0xc00096dc58, 0xc000d44370) pkg/sentry/fsimpl/tmpfs/tmpfs.go:807 +0xff gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*directoryFD).IterDirents(0xc00037a580, {0xc000926000?, 0xc0006d34c8?}, {0x1f71500, 0xc001096d80}) pkg/sentry/fsimpl/tmpfs/directory.go:125 +0x365 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).IterDirents(0xc00037a580, {0x1f95f00, 0xc000a40c88}, {0x1f71500, 0xc001096d80}) pkg/sentry/vfs/file_description.go:691 +0x15e gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getdents(0xc000a40c88, {{0x3}, {0x564a886964a0}, {0x8000}, {0x1000}, {0x1a50df97}, {0x2b8}}, 0x1) pkg/sentry/syscalls/linux/sys_getdents.go:69 +0x217 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Getdents64(0xc000a40c88, 0x0?, {{0x3}, {0x564a886964a0}, {0x8000}, {0x1000}, {0x1a50df97}, {0x2b8}}) pkg/sentry/syscalls/linux/sys_getdents.go:36 +0x5a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000a40c88, 0xd9, {{0x3}, {0x564a886964a0}, {0x8000}, {0x1000}, {0x1a50df97}, {0x2b8}}) pkg/sentry/kernel/task_syscall.go:143 +0x995 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000a40c88, 0xd9, {{0x3}, {0x564a886964a0}, {0x8000}, {0x1000}, {0x1a50df97}, {0x2b8}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000a40c88, 0xd9, {{0x3}, {0x564a886964a0}, {0x8000}, {0x1000}, {0x1a50df97}, {0x2b8}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000a40c88) pkg/sentry/kernel/task_syscall.go:258 +0x4b0 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000a40c88?, 0xc000a40c88) pkg/sentry/kernel/task_run.go:269 +0x1fae gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000a40c88, 0x10) pkg/sentry/kernel/task_run.go:97 +0x4fb created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 212 pkg/sentry/kernel/task_start.go:400 +0x165