panic: WARNING: circular locking detected: tmpfs.inodeMutex -> mm.mappingRWMutex: goroutine 786 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc00045e260, 0xc001c92918) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x326 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc0002d9e60, 0xc00045e240, {0xc000ba0ff0, 0x1, 0x1}) pkg/sync/locking/lockdep.go:112 +0x505 gvisor.dev/gvisor/pkg/sync/locking.checkLock.func1(0xc00045e240, 0xc001c92aa8?) pkg/sync/locking/lockdep.go:115 +0x74 gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc00045e1d0, 0xc001c92b58) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x326 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc0002d9e60, 0xc00045e1b0, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x505 gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc0002d9e60, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x390 gvisor.dev/gvisor/pkg/sentry/mm.(*mappingRWMutex).RLock(0xc001a8c05c) bazel-out/k8-fastbuild/bin/pkg/sentry/mm/mapping_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc001a8c008, {0x2064700, 0xc001646588}, {0x485195?, 0x2cc35c8?}, {0x1?, 0x0?, 0x0?}, 0x0, 0xc001c93080) pkg/sentry/mm/io.go:544 +0x145 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc001a8c008, {0x2064700, 0xc001646588}, {0x0?, 0x0?, 0x0?, 0xc001183758?}, {0x1, 0x0, 0x0}, ...) pkg/sentry/mm/io.go:606 +0x8ae gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyInTo(0xc001a8c008, {0x2064700, 0xc001646588}, {0x0?, 0x5?, 0x484ca9?, 0xc001c93130?}, {0x2041000, 0xc001183758}, {0x0, ...}) pkg/sentry/mm/io.go:324 +0x2f0 gvisor.dev/gvisor/pkg/usermem.IOSequence.CopyInTo({{0x205b378, 0xc001a8c008}, {0x0, 0x1, 0x7eb095000000, 0x2000}, {0x0, 0x1}}, {0x2064700, 0xc001646588}, ...) pkg/usermem/usermem.go:516 +0xcf gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).pwrite(0xc000d2d780, {0x2064700, 0xc001646588}, {{0x205b378, 0xc001a8c008}, {0x0, 0x1, 0x7eb095000000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:553 +0x91b gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).Write(0xc000d2d780, {0x2064700, 0xc001646588}, {{0x205b378, 0xc001a8c008}, {0x0, 0x1, 0x7eb095000000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:570 +0x12a gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc000d2d780, {0x2064700, 0xc001646588}, {{0x205b378, 0xc001a8c008}, {0x0, 0x1, 0x7eb095000000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:679 +0x145 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write(0xc001646588, 0xc000d2d780, {{0x205b378, 0xc001a8c008}, {0x0, 0x1, 0x7eb095000000, 0x2000}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:347 +0xa5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write(0xc001646588, 0x4af8cf?, {{0x3}, {0x7eb095000000}, {0x2000}, {0xc6}, {0x0}, {0x176}}) pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x38f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001646588, 0x1, {{0x3}, {0x7eb095000000}, {0x2000}, {0xc6}, {0x0}, {0x176}}) pkg/sentry/kernel/task_syscall.go:143 +0xb9f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001646588, 0x1, {{0x3}, {0x7eb095000000}, {0x2000}, {0xc6}, {0x0}, {0x176}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001646588, 0x1, {{0x3}, {0x7eb095000000}, {0x2000}, {0xc6}, {0x0}, {0x176}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001646588) pkg/sentry/kernel/task_syscall.go:258 +0x54a gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001646588?, 0xc001646588) pkg/sentry/kernel/task_run.go:269 +0x2295 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001646588, 0x48) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 655 pkg/sentry/kernel/task_start.go:400 +0x185 known lock chain: mm.mappingRWMutex -> tmpfs.filesystemRWMutex -> tmpfs.iterMutex -> tmpfs.inodeMutex ====== mm.mappingRWMutex -> tmpfs.filesystemRWMutex ===== goroutine 584 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystemRWMutex).RLock(0xc000918fd8) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/filesystem_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).StatAt(0xc000918f70, {0x20648b0, 0xc000a56d80}, 0xc001547b08, {0x574d18?, 0x30000000?}) pkg/sentry/fsimpl/tmpfs/filesystem.go:760 +0xa8 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Stat(0xc000553e30, {0x20648b0, 0xc000a56d80}, {0x48352c?, 0x0?}) pkg/sentry/vfs/file_description.go:540 +0x322 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DeviceID(0xc000553e30) pkg/sentry/vfs/file_description.go:823 +0x65 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).appendVMAMapsEntryLocked(0x485195?, {0x20648b0, 0xc000a56d80}, {0xc0015ae008?, 0xc001745368?}, 0xc001736ce0) pkg/sentry/mm/procfs.go:118 +0x19d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).vmaMapsEntryLocked(0xc0015aa008, {0x20648b0, 0xc000a56d80}, {0xc0015ae008?, 0x47906e?}) pkg/sentry/mm/procfs.go:104 +0xcf gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).DebugString(0xc0015aa008, {0x20648b0, 0xc000a56d80}) pkg/sentry/mm/debug.go:49 +0x1a5 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).String(0xc0015aa008) pkg/sentry/mm/debug.go:38 +0x45 fmt.(*pp).handleMethods(0xc0005749c0, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:673 +0x6eb fmt.(*pp).printArg(0xc0005749c0, {0x1e37900, 0xc0015aa008}, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:756 +0xb4c fmt.(*pp).doPrintf(0xc0005749c0, {0xc000602390, 0x24}, {0xc001736c70, 0x1, 0x1}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:1074 +0x5d0 fmt.Sprintf({0xc000602390, 0x24}, {0xc001736c70, 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({0xc001745ab0?}, 0x3, 0x2, {0x2cc3180?, 0x1?, 0x2de6540?}, {0xc000602390, 0x24}, {0xc001736c70, 0x1, ...}) pkg/log/glog.go:82 +0x32a gvisor.dev/gvisor/pkg/log.(*BasicLogger).DebugfAtDepth(0xc000013ae8, 0x2, {0xc000602390, 0x24}, {0xc001736c70, 0x1, 0x1}) pkg/log/log.go:220 +0x128 gvisor.dev/gvisor/pkg/log.DebugfAtDepth(0x1, {0xc000602390, 0x24}, {0xc001736c70, 0x1, 0x1}) pkg/log/log.go:295 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Debugf(0xc001730008, {0x1e4b244, 0xc}, {0xc001736c70, 0x1, 0x1}) pkg/sentry/kernel/task_log.go:54 +0xcd gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).DebugDumpState(0xc001730008) pkg/sentry/kernel/task_log.go:71 +0x11c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001730008?, 0xc001730008) pkg/sentry/kernel/task_run.go:313 +0x2025 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001730008, 0x29) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 582 pkg/sentry/kernel/task_start.go:400 +0x185 ====== tmpfs.filesystemRWMutex -> tmpfs.iterMutex ===== goroutine 1 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*iterMutex).Lock(0xc0009237e0) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/iter_mutex.go:33 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*directory).insertChildLocked(0xc000923408, 0xc00019a460, {0x1e4272f, 0x2}) pkg/sentry/fsimpl/tmpfs/directory.go:69 +0x1c5 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt.func1(0xc000923408, {0x1e4272f, 0x2}) pkg/sentry/fsimpl/tmpfs/filesystem.go:794 +0x159 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).doCreateAt(0xc000918f70, {0x20649d0, 0xc0003b8c40}, 0xc000281688, 0x0, 0xc000935c68) pkg/sentry/fsimpl/tmpfs/filesystem.go:210 +0x584 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt(0xc000918f70, {0x20649d0, 0xc0003b8c40}, 0xc000281688, {0x1e4c3bd, 0xd}) pkg/sentry/fsimpl/tmpfs/filesystem.go:783 +0xf3 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SymlinkAt(0xc00027f1e0, {0x20649d0, 0xc0003b8c40}, 0xc000199440, 0xc00019a3c0, {0x1e4c3bd, 0xd}) pkg/sentry/vfs/vfs.go:695 +0x303 gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.userspaceInit({0x20649d0, 0xc0003b8c40}, 0xc00027f1e0, 0xc000199440, {0xc00024d760?, 0xc000923408?}, 0x0) pkg/sentry/fsimpl/dev/dev.go:164 +0x33e gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.FilesystemType.GetFilesystem({}, {0x20649d0, 0xc0003b8c40}, 0xc00027f1e0, 0xc000199440, {0x0, 0x0}, {0x1, {0x0, 0x0}, ...}) pkg/sentry/fsimpl/dev/dev.go:60 +0x36e gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).NewFilesystem(0xc00027f1e0, {0x20649d0, 0xc0003b8c40}, 0xc000199440, {0x0, 0x0}, {0x1e429bd, 0x3}, 0xc00091dac0) pkg/sentry/vfs/mount.go:252 +0x1d4 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountDisconnected(0xc00027f1e0, {0x20649d0, 0xc0003b8c40}, 0xc000199440, {0x0, 0x0}, {0x1e429bd, 0x3}, 0xc00091dac0) pkg/sentry/vfs/mount.go:271 +0xc5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountAt(0xc00027f1e0, {0x20649d0, 0xc0003b8c40}, 0xc000199440, {0x0, 0x0}, 0xc000936520, {0x1e429bd, 0x3}, 0xc00091dac0) pkg/sentry/vfs/mount.go:632 +0xe5 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmount(0xc000a7d6c0, {0x20649d0, 0xc0003b8c40}, 0xc0002d81b0, 0xc00015cf08, 0xc0007c6120, 0xc000199440, 0xc0006223e8) runsc/boot/vfs.go:850 +0xb52 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmounts(0xc000a7d6c0, {0x20649d0, 0xc0003b8c40}, 0xc0002d81b0, 0xc00015cf08, 0xc0007c6120, 0xc000199440) runsc/boot/vfs.go:739 +0x9ed gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountAll(0xc000a7d6c0, {0x20649d0, 0xc0003b8c40}, 0xc000199440, 0xc0002d81b0, 0xc00015cf08, 0xc000a7d790) runsc/boot/vfs.go:468 +0x585 gvisor.dev/gvisor/runsc/boot.setupContainerVFS({0x20649d0, 0xc0003b8880}, 0xc00026d198, 0xc000a7d6c0, 0xc00026d1c8) runsc/boot/vfs.go:177 +0x2ce gvisor.dev/gvisor/runsc/boot.(*Loader).createContainerProcess(0xc00026d188, 0xc00026d198) runsc/boot/loader.go:1159 +0xb1b gvisor.dev/gvisor/runsc/boot.(*Loader).run(0xc00026d188) runsc/boot/loader.go:917 +0x372 gvisor.dev/gvisor/runsc/boot.(*Loader).Run(0xc00026d188) runsc/boot/loader.go:865 +0x2f gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc0004ef6c0, {0xc00022e108?, 0x11?}, 0xc0003224d0, {0xc00003f1c0, 0x2, 0xc00003f1c0?}) runsc/cmd/boot.go:564 +0x3525 github.com/google/subcommands.(*Commander).Execute(0xc00025a000, {0x2053fb0, 0x3d46fe0}, {0xc00003f1c0, 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 ====== tmpfs.iterMutex -> tmpfs.inodeMutex ===== goroutine 231 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeMutex).Lock(0xc000bec088) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_mutex.go:33 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).touchAtime(0xc000bec058, 0xc00093dad0) pkg/sentry/fsimpl/tmpfs/tmpfs.go:807 +0x168 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*directoryFD).IterDirents(0xc000f07780, {0x485195?, 0x2c93a14?}, {0x203fe00, 0xc000d9c9c0}) pkg/sentry/fsimpl/tmpfs/directory.go:125 +0x24b gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).IterDirents(0xc000f07780, {0x2064700, 0xc000cfc008}, {0x203fe00, 0xc000d9c9c0}) pkg/sentry/vfs/file_description.go:691 +0x17f gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getdents(0xc000cfc008, {{0x3}, {0x562e8a6af4a0}, {0x8000}, {0x1000}, {0x1689bbe}, {0xc}}, 0x1) pkg/sentry/syscalls/linux/sys_getdents.go:69 +0x29c gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Getdents64(0xc000cfc008, 0x101f178c8?, {{0x3}, {0x562e8a6af4a0}, {0x8000}, {0x1000}, {0x1689bbe}, {0xc}}) pkg/sentry/syscalls/linux/sys_getdents.go:36 +0x6b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000cfc008, 0xd9, {{0x3}, {0x562e8a6af4a0}, {0x8000}, {0x1000}, {0x1689bbe}, {0xc}}) pkg/sentry/kernel/task_syscall.go:143 +0xb9f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000cfc008, 0xd9, {{0x3}, {0x562e8a6af4a0}, {0x8000}, {0x1000}, {0x1689bbe}, {0xc}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000cfc008, 0xd9, {{0x3}, {0x562e8a6af4a0}, {0x8000}, {0x1000}, {0x1689bbe}, {0xc}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000cfc008) pkg/sentry/kernel/task_syscall.go:258 +0x54a gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000cfc008?, 0xc000cfc008) pkg/sentry/kernel/task_run.go:269 +0x2295 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000cfc008, 0xa) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 125 pkg/sentry/kernel/task_start.go:400 +0x185