panic: WARNING: circular locking detected: tmpfs.inodeMutex -> mm.mappingRWMutex: goroutine 836 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc0001a25c0, 0xc000d14918) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x326 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc0001a2240, 0xc0001a25a0, {0xc000cf8ef0, 0x1, 0x1}) pkg/sync/locking/lockdep.go:112 +0x505 gvisor.dev/gvisor/pkg/sync/locking.checkLock.func1(0xc0001a25a0, 0xc000d14aa8?) pkg/sync/locking/lockdep.go:115 +0x74 gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc0001a2530, 0xc000d14b58) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x326 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc0001a2240, 0xc0001a2510, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x505 gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc0001a2240, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x390 gvisor.dev/gvisor/pkg/sentry/mm.(*mappingRWMutex).RLock(0xc000d8505c) bazel-out/k8-fastbuild/bin/pkg/sentry/mm/mapping_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc000d85008, {0x2064700, 0xc001614c88}, {0x485195?, 0x2cc35c8?}, {0x1?, 0x0?, 0x0?}, 0x0, 0xc000d15080) pkg/sentry/mm/io.go:544 +0x145 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc000d85008, {0x2064700, 0xc001614c88}, {0x0?, 0x0?, 0x0?, 0xc001825da0?}, {0x1, 0x0, 0x0}, ...) pkg/sentry/mm/io.go:606 +0x8ae gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyInTo(0xc000d85008, {0x2064700, 0xc001614c88}, {0x0?, 0x0?, 0x484ca9?, 0xc000d15130?}, {0x2041000, 0xc001825da0}, {0x0, ...}) pkg/sentry/mm/io.go:324 +0x2f0 gvisor.dev/gvisor/pkg/usermem.IOSequence.CopyInTo({{0x205b378, 0xc000d85008}, {0x0, 0x1, 0x7f6f64c00000, 0x1000000}, {0x0, 0x1}}, {0x2064700, 0xc001614c88}, ...) pkg/usermem/usermem.go:516 +0xcf gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).pwrite(0xc001219500, {0x2064700, 0xc001614c88}, {{0x205b378, 0xc000d85008}, {0x0, 0x1, 0x7f6f64c00000, 0x1000000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:553 +0x91b gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).Write(0xc001219500, {0x2064700, 0xc001614c88}, {{0x205b378, 0xc000d85008}, {0x0, 0x1, 0x7f6f64c00000, 0x1000000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:570 +0x12a gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc001219500, {0x2064700, 0xc001614c88}, {{0x205b378, 0xc000d85008}, {0x0, 0x1, 0x7f6f64c00000, 0x1000000}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:679 +0x145 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write(0xc001614c88, 0xc001219500, {{0x205b378, 0xc000d85008}, {0x0, 0x1, 0x7f6f64c00000, 0x1000000}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:347 +0xa5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write(0xc001614c88, 0x0?, {{0x3}, {0x7f6f64c00000}, {0x1000000}, {0x20000002}, {0x0}, {0x4016}}) pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x38f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001614c88, 0x1, {{0x3}, {0x7f6f64c00000}, {0x1000000}, {0x20000002}, {0x0}, {0x4016}}) pkg/sentry/kernel/task_syscall.go:143 +0xb9f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001614c88, 0x1, {{0x3}, {0x7f6f64c00000}, {0x1000000}, {0x20000002}, {0x0}, {0x4016}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001614c88, 0x1, {{0x3}, {0x7f6f64c00000}, {0x1000000}, {0x20000002}, {0x0}, {0x4016}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001614c88) pkg/sentry/kernel/task_syscall.go:258 +0x54a gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001614c88?, 0xc001614c88) pkg/sentry/kernel/task_run.go:269 +0x2295 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001614c88, 0x43) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 835 pkg/sentry/kernel/task_start.go:400 +0x185 known lock chain: mm.mappingRWMutex -> tmpfs.filesystemRWMutex -> tmpfs.iterMutex -> tmpfs.inodeMutex ====== mm.mappingRWMutex -> tmpfs.filesystemRWMutex ===== goroutine 751 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystemRWMutex).RLock(0xc00087aaf8) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/filesystem_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).StatAt(0xc00087aa90, {0x20648b0, 0xc0006aec90}, 0xc000506908, {0x10fe1b8?, 0x30000000?}) pkg/sentry/fsimpl/tmpfs/filesystem.go:760 +0xa8 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Stat(0xc0003d0d20, {0x20648b0, 0xc0006aec90}, {0x1a6e0d0?, 0x0?}) pkg/sentry/vfs/file_description.go:540 +0x322 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DeviceID(0xc0003d0d20) pkg/sentry/vfs/file_description.go:823 +0x65 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).appendVMAMapsEntryLocked(0x485195?, {0x20648b0, 0xc0006aec90}, {0xc00077cd08?, 0xc000bf9368?}, 0xc0015f8760) pkg/sentry/mm/procfs.go:118 +0x19d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).vmaMapsEntryLocked(0xc000dba008, {0x20648b0, 0xc0006aec90}, {0xc00077cd08?, 0x47906e?}) pkg/sentry/mm/procfs.go:104 +0xcf gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).DebugString(0xc000dba008, {0x20648b0, 0xc0006aec90}) pkg/sentry/mm/debug.go:49 +0x1a5 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).String(0xc000dba008) pkg/sentry/mm/debug.go:38 +0x45 fmt.(*pp).handleMethods(0xc0010fe000, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:673 +0x6eb fmt.(*pp).printArg(0xc0010fe000, {0x1e37900, 0xc000dba008}, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:756 +0xb4c fmt.(*pp).doPrintf(0xc0010fe000, {0xc000a0e360, 0x24}, {0xc0015f86e0, 0x1, 0x1}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:1074 +0x5d0 fmt.Sprintf({0xc000a0e360, 0x24}, {0xc0015f86e0, 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({0xc000bf9ab0?}, 0x3, 0x2, {0x2cc3180?, 0x1?, 0x2de6540?}, {0xc000a0e360, 0x24}, {0xc0015f86e0, 0x1, ...}) pkg/log/glog.go:82 +0x32a gvisor.dev/gvisor/pkg/log.(*BasicLogger).DebugfAtDepth(0xc00041e1f8, 0x2, {0xc000a0e360, 0x24}, {0xc0015f86e0, 0x1, 0x1}) pkg/log/log.go:220 +0x128 gvisor.dev/gvisor/pkg/log.DebugfAtDepth(0x1, {0xc000a0e360, 0x24}, {0xc0015f86e0, 0x1, 0x1}) pkg/log/log.go:295 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Debugf(0xc000e92008, {0x1e4b244, 0xc}, {0xc0015f86e0, 0x1, 0x1}) pkg/sentry/kernel/task_log.go:54 +0xcd gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).DebugDumpState(0xc000e92008) pkg/sentry/kernel/task_log.go:71 +0x11c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000e92008?, 0xc000e92008) pkg/sentry/kernel/task_run.go:313 +0x2025 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000e92008, 0x3c) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 750 pkg/sentry/kernel/task_start.go:400 +0x185 ====== tmpfs.filesystemRWMutex -> tmpfs.iterMutex ===== goroutine 1 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*iterMutex).Lock(0xc00087f7e0) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/iter_mutex.go:33 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*directory).insertChildLocked(0xc00087f408, 0xc00019a820, {0x1e4272f, 0x2}) pkg/sentry/fsimpl/tmpfs/directory.go:69 +0x1c5 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt.func1(0xc00087f408, {0x1e4272f, 0x2}) pkg/sentry/fsimpl/tmpfs/filesystem.go:794 +0x159 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).doCreateAt(0xc00087aa90, {0x20649d0, 0xc0006762c0}, 0xc000280488, 0x0, 0xc0003e3c68) pkg/sentry/fsimpl/tmpfs/filesystem.go:210 +0x584 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt(0xc00087aa90, {0x20649d0, 0xc0006762c0}, 0xc000280488, {0x1e4c3bd, 0xd}) pkg/sentry/fsimpl/tmpfs/filesystem.go:783 +0xf3 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SymlinkAt(0xc00027d1e0, {0x20649d0, 0xc0006762c0}, 0xc000198ae0, 0xc00019a7d0, {0x1e4c3bd, 0xd}) pkg/sentry/vfs/vfs.go:695 +0x303 gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.userspaceInit({0x20649d0, 0xc0006762c0}, 0xc00027d1e0, 0xc000198ae0, {0xc00024d600?, 0xc00087f408?}, 0x0) pkg/sentry/fsimpl/dev/dev.go:164 +0x33e gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.FilesystemType.GetFilesystem({}, {0x20649d0, 0xc0006762c0}, 0xc00027d1e0, 0xc000198ae0, {0x0, 0x0}, {0x1, {0x0, 0x0}, ...}) pkg/sentry/fsimpl/dev/dev.go:60 +0x36e gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).NewFilesystem(0xc00027d1e0, {0x20649d0, 0xc0006762c0}, 0xc000198ae0, {0x0, 0x0}, {0x1e429bd, 0x3}, 0xc000882340) pkg/sentry/vfs/mount.go:252 +0x1d4 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountDisconnected(0xc00027d1e0, {0x20649d0, 0xc0006762c0}, 0xc000198ae0, {0x0, 0x0}, {0x1e429bd, 0x3}, 0xc000882340) pkg/sentry/vfs/mount.go:271 +0xc5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountAt(0xc00027d1e0, {0x20649d0, 0xc0006762c0}, 0xc000198ae0, {0x0, 0x0}, 0xc0003e4520, {0x1e429bd, 0x3}, 0xc000882340) pkg/sentry/vfs/mount.go:632 +0xe5 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmount(0xc0006ed930, {0x20649d0, 0xc0006762c0}, 0xc000170750, 0xc0003ec308, 0xc00070a030, 0xc000198ae0, 0xc000222348) runsc/boot/vfs.go:850 +0xb52 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmounts(0xc0006ed930, {0x20649d0, 0xc0006762c0}, 0xc000170750, 0xc0003ec308, 0xc00070a030, 0xc000198ae0) runsc/boot/vfs.go:739 +0x9ed gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountAll(0xc0006ed930, {0x20649d0, 0xc0006762c0}, 0xc000198ae0, 0xc000170750, 0xc0003ec308, 0xc0006eda00) runsc/boot/vfs.go:468 +0x585 gvisor.dev/gvisor/runsc/boot.setupContainerVFS({0x20649d0, 0xc0006760e0}, 0xc00026b198, 0xc0006ed930, 0xc00026b1c8) runsc/boot/vfs.go:177 +0x2ce gvisor.dev/gvisor/runsc/boot.(*Loader).createContainerProcess(0xc00026b188, 0xc00026b198) runsc/boot/loader.go:1159 +0xb1b gvisor.dev/gvisor/runsc/boot.(*Loader).run(0xc00026b188) runsc/boot/loader.go:917 +0x372 gvisor.dev/gvisor/runsc/boot.(*Loader).Run(0xc00026b188) runsc/boot/loader.go:865 +0x2f gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc000185dc0, {0xc00022e0f0?, 0x11?}, 0xc0003d1180, {0xc0003b8300, 0x2, 0xc0003b8300?}) runsc/cmd/boot.go:564 +0x3525 github.com/google/subcommands.(*Commander).Execute(0xc00025a000, {0x2053fb0, 0x3d46fe0}, {0xc0003b8300, 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 295 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeMutex).Lock(0xc000597888) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_mutex.go:33 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).touchAtime(0xc000597858, 0xc00147ba20) pkg/sentry/fsimpl/tmpfs/tmpfs.go:807 +0x168 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*directoryFD).IterDirents(0xc000e8aa80, {0x485195?, 0x2c93a14?}, {0x203fe00, 0xc000947640}) pkg/sentry/fsimpl/tmpfs/directory.go:125 +0x24b gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).IterDirents(0xc000e8aa80, {0x2064700, 0xc0009b4c88}, {0x203fe00, 0xc000947640}) pkg/sentry/vfs/file_description.go:691 +0x17f gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getdents(0xc0009b4c88, {{0x3}, {0x5624b15e14a0}, {0x8000}, {0x1000}, {0x2e37289}, {0x76e}}, 0x1) pkg/sentry/syscalls/linux/sys_getdents.go:69 +0x29c gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Getdents64(0xc0009b4c88, 0x0?, {{0x3}, {0x5624b15e14a0}, {0x8000}, {0x1000}, {0x2e37289}, {0x76e}}) pkg/sentry/syscalls/linux/sys_getdents.go:36 +0x6b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0009b4c88, 0xd9, {{0x3}, {0x5624b15e14a0}, {0x8000}, {0x1000}, {0x2e37289}, {0x76e}}) pkg/sentry/kernel/task_syscall.go:143 +0xb9f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0009b4c88, 0xd9, {{0x3}, {0x5624b15e14a0}, {0x8000}, {0x1000}, {0x2e37289}, {0x76e}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0009b4c88, 0xd9, {{0x3}, {0x5624b15e14a0}, {0x8000}, {0x1000}, {0x2e37289}, {0x76e}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0009b4c88) pkg/sentry/kernel/task_syscall.go:258 +0x54a gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0009b4c88?, 0xc0009b4c88) pkg/sentry/kernel/task_run.go:269 +0x2295 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0009b4c88, 0xa) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 284 pkg/sentry/kernel/task_start.go:400 +0x185