panic: WARNING: circular locking detected: tmpfs.inodeMutex -> mm.mappingRWMutex: goroutine 722 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc0003d1c40, 0xc000c4ab58) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x326 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc0003d1950, 0xc0003d1c20, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x505 gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc0003d1950, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x390 gvisor.dev/gvisor/pkg/sentry/mm.(*mappingRWMutex).RLock(0xc00129405c) bazel-out/k8-fastbuild/bin/pkg/sentry/mm/mapping_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc001294008, {0x205eb00, 0xc001055908}, {0x485195?, 0x2cbb228?}, {0x1?, 0x0?, 0x0?}, 0x0, 0xc000c4b080) pkg/sentry/mm/io.go:544 +0x145 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc001294008, {0x205eb00, 0xc001055908}, {0x0?, 0x0?, 0x0?, 0xc0000138a8?}, {0x1, 0x0, 0x0}, ...) pkg/sentry/mm/io.go:606 +0x8ae gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyInTo(0xc001294008, {0x205eb00, 0xc001055908}, {0x0?, 0x3?, 0x484ca9?, 0xc000c4b130?}, {0x203b4c0, 0xc0000138a8}, {0x0, ...}) pkg/sentry/mm/io.go:324 +0x2f0 gvisor.dev/gvisor/pkg/usermem.IOSequence.CopyInTo({{0x2055798, 0xc001294008}, {0x0, 0x1, 0x7f9859c00000, 0x2000}, {0x0, 0x1}}, {0x205eb00, 0xc001055908}, ...) pkg/usermem/usermem.go:516 +0xcf gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).pwrite(0xc00143b500, {0x205eb00, 0xc001055908}, {{0x2055798, 0xc001294008}, {0x0, 0x1, 0x7f9859c00000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:553 +0x91b gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).Write(0xc00143b500, {0x205eb00, 0xc001055908}, {{0x2055798, 0xc001294008}, {0x0, 0x1, 0x7f9859c00000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:570 +0x12a gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc00143b500, {0x205eb00, 0xc001055908}, {{0x2055798, 0xc001294008}, {0x0, 0x1, 0x7f9859c00000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:679 +0x145 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write(0xc001055908, 0xc00143b500, {{0x2055798, 0xc001294008}, {0x0, 0x1, 0x7f9859c00000, 0x2000}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:347 +0xa5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write(0xc001055908, 0x0?, {{0x3}, {0x7f9859c00000}, {0x2000}, {0x20000242}, {0x0}, {0x178}}) pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x38f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001055908, 0x1, {{0x3}, {0x7f9859c00000}, {0x2000}, {0x20000242}, {0x0}, {0x178}}) pkg/sentry/kernel/task_syscall.go:143 +0xb9f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001055908, 0x1, {{0x3}, {0x7f9859c00000}, {0x2000}, {0x20000242}, {0x0}, {0x178}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001055908, 0x1, {{0x3}, {0x7f9859c00000}, {0x2000}, {0x20000242}, {0x0}, {0x178}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001055908) pkg/sentry/kernel/task_syscall.go:258 +0x54a gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001055908?, 0xc001055908) pkg/sentry/kernel/task_run.go:269 +0x2295 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001055908, 0xbb) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 711 pkg/sentry/kernel/task_start.go:400 +0x185 known lock chain: mm.mappingRWMutex -> tmpfs.filesystemRWMutex -> tmpfs.inodeMutex ====== mm.mappingRWMutex -> tmpfs.filesystemRWMutex ===== goroutine 408 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystemRWMutex).RLock(0xc000956138) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/filesystem_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).StatAt(0xc0009560d0, {0x205ecb0, 0xc00068b7d0}, 0xc000ef2008, {0xc6eb78?, 0x30000000?}) pkg/sentry/fsimpl/tmpfs/filesystem.go:760 +0xa8 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Stat(0xc00079ea10, {0x205ecb0, 0xc00068b7d0}, {0x48352c?, 0x0?}) pkg/sentry/vfs/file_description.go:540 +0x322 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DeviceID(0xc00079ea10) pkg/sentry/vfs/file_description.go:823 +0x65 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).appendVMAMapsEntryLocked(0x485195?, {0x205ecb0, 0xc00068b7d0}, {0xc000cb2008?, 0xc000acb368?}, 0xc000c3e3b0) pkg/sentry/mm/procfs.go:118 +0x19d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).vmaMapsEntryLocked(0xc000ea2008, {0x205ecb0, 0xc00068b7d0}, {0xc000cb2008?, 0x47906e?}) pkg/sentry/mm/procfs.go:104 +0xcf gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).DebugString(0xc000ea2008, {0x205ecb0, 0xc00068b7d0}) pkg/sentry/mm/debug.go:49 +0x1a5 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).String(0xc000ea2008) pkg/sentry/mm/debug.go:38 +0x45 fmt.(*pp).handleMethods(0xc000c6ea90, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:673 +0x6eb fmt.(*pp).printArg(0xc000c6ea90, {0x1e33060, 0xc000ea2008}, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:756 +0xb4c fmt.(*pp).doPrintf(0xc000c6ea90, {0xc000c7e0c0, 0x24}, {0xc000c3e380, 0x1, 0x1}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:1074 +0x5d0 fmt.Sprintf({0xc000c7e0c0, 0x24}, {0xc000c3e380, 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({0xc000acbab0?}, 0x3, 0x2, {0x2cbade0?, 0x1?, 0x2ddde20?}, {0xc000c7e0c0, 0x24}, {0xc000c3e380, 0x1, ...}) pkg/log/glog.go:82 +0x32a gvisor.dev/gvisor/pkg/log.(*BasicLogger).DebugfAtDepth(0xc00039c708, 0x2, {0xc000c7e0c0, 0x24}, {0xc000c3e380, 0x1, 0x1}) pkg/log/log.go:220 +0x128 gvisor.dev/gvisor/pkg/log.DebugfAtDepth(0x1, {0xc000c7e0c0, 0x24}, {0xc000c3e380, 0x1, 0x1}) pkg/log/log.go:295 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Debugf(0xc000a79208, {0x1e4696f, 0xc}, {0xc000c3e380, 0x1, 0x1}) pkg/sentry/kernel/task_log.go:54 +0xcd gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).DebugDumpState(0xc000a79208) pkg/sentry/kernel/task_log.go:71 +0x11c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000a79208?, 0xc000a79208) pkg/sentry/kernel/task_run.go:313 +0x2025 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000a79208, 0x56) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 367 pkg/sentry/kernel/task_start.go:400 +0x185 ====== tmpfs.filesystemRWMutex -> tmpfs.inodeMutex ===== goroutine 1 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeMutex).Lock(0xc000952c88) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_mutex.go:33 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).touchCMtime(0xc000952c58) pkg/sentry/fsimpl/tmpfs/tmpfs.go:824 +0xb8 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).doCreateAt(0xc0009560d0, {0x205edd0, 0xc00003c4c0}, 0xc000954488, 0x0, 0xc000047c68) pkg/sentry/fsimpl/tmpfs/filesystem.go:219 +0x633 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt(0xc0009560d0, {0x205edd0, 0xc00003c4c0}, 0xc000954488, {0x1e47adc, 0xd}) pkg/sentry/fsimpl/tmpfs/filesystem.go:783 +0xf3 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SymlinkAt(0xc0002751e0, {0x205edd0, 0xc00003c4c0}, 0xc0005ab260, 0xc0003b8410, {0x1e47adc, 0xd}) pkg/sentry/vfs/vfs.go:695 +0x303 gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.userspaceInit({0x205edd0, 0xc00003c4c0}, 0xc0002751e0, 0xc0005ab260, {0xc000243550?, 0xc000952c08?}, 0x0) pkg/sentry/fsimpl/dev/dev.go:164 +0x33e gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.FilesystemType.GetFilesystem({}, {0x205edd0, 0xc00003c4c0}, 0xc0002751e0, 0xc0005ab260, {0x0, 0x0}, {0x1, {0x0, 0x0}, ...}) pkg/sentry/fsimpl/dev/dev.go:60 +0x36e gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).NewFilesystem(0xc0002751e0, {0x205edd0, 0xc00003c4c0}, 0xc0005ab260, {0x0, 0x0}, {0x1e3e0fd, 0x3}, 0xc00094ed00) pkg/sentry/vfs/mount.go:252 +0x1d4 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountDisconnected(0xc0002751e0, {0x205edd0, 0xc00003c4c0}, 0xc0005ab260, {0x0, 0x0}, {0x1e3e0fd, 0x3}, 0xc00094ed00) pkg/sentry/vfs/mount.go:271 +0xc5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountAt(0xc0002751e0, {0x205edd0, 0xc00003c4c0}, 0xc0005ab260, {0x0, 0x0}, 0xc000048520, {0x1e3e0fd, 0x3}, 0xc00094ed00) pkg/sentry/vfs/mount.go:632 +0xe5 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmount(0xc0007eedd0, {0x205edd0, 0xc00003c4c0}, 0xc0001322d0, 0xc000320308, 0xc000856480, 0xc0005ab260, 0xc0003bc208) runsc/boot/vfs.go:850 +0xb52 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmounts(0xc0007eedd0, {0x205edd0, 0xc00003c4c0}, 0xc0001322d0, 0xc000320308, 0xc000856480, 0xc0005ab260) runsc/boot/vfs.go:739 +0x9ed gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountAll(0xc0007eedd0, {0x205edd0, 0xc00003c4c0}, 0xc0005ab260, 0xc0001322d0, 0xc000320308, 0xc0007eeea0) runsc/boot/vfs.go:468 +0x585 gvisor.dev/gvisor/runsc/boot.setupContainerVFS({0x205edd0, 0xc00003c2a0}, 0xc00046c298, 0xc0007eedd0, 0xc00046c2c8) runsc/boot/vfs.go:177 +0x2ce gvisor.dev/gvisor/runsc/boot.(*Loader).createContainerProcess(0xc00046c288, 0xc00046c298) runsc/boot/loader.go:1159 +0xb1b gvisor.dev/gvisor/runsc/boot.(*Loader).run(0xc00046c288) runsc/boot/loader.go:917 +0x372 gvisor.dev/gvisor/runsc/boot.(*Loader).Run(0xc00046c288) runsc/boot/loader.go:865 +0x2f gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc000184c40, {0xc0002260e0?, 0x11?}, 0xc00024f650, {0xc0003a0320, 0x2, 0xc0003a0320?}) runsc/cmd/boot.go:564 +0x3525 github.com/google/subcommands.(*Commander).Execute(0xc000250000, {0x204e3d0, 0x3d3e8e0}, {0xc0003a0320, 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