panic: WARNING: circular locking detected: tmpfs.inodeMutex -> mm.mappingRWMutex: goroutine 2787 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc0004cc380, 0xc001566b58) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x326 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc0004cc090, 0xc0004cc360, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x505 gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc0004cc090, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x390 gvisor.dev/gvisor/pkg/sentry/mm.(*mappingRWMutex).RLock(0xc00206405c) bazel-out/k8-fastbuild/bin/pkg/sentry/mm/mapping_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc002064008, {0x205f0c0, 0xc001aac588}, {0x485195?, 0x2cbc228?}, {0x1?, 0x0?, 0x0?}, 0x0, 0xc001567080) pkg/sentry/mm/io.go:544 +0x145 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc002064008, {0x205f0c0, 0xc001aac588}, {0x0?, 0x0?, 0x0?, 0xc000d98540?}, {0x1, 0x0, 0x0}, ...) pkg/sentry/mm/io.go:606 +0x8ae gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyInTo(0xc002064008, {0x205f0c0, 0xc001aac588}, {0x0?, 0x5?, 0x484ca9?, 0xc001567130?}, {0x203ba80, 0xc000d98540}, {0x0, ...}) pkg/sentry/mm/io.go:324 +0x2f0 gvisor.dev/gvisor/pkg/usermem.IOSequence.CopyInTo({{0x2055d58, 0xc002064008}, {0x0, 0x1, 0x7f0572800000, 0x2000}, {0x0, 0x1}}, {0x205f0c0, 0xc001aac588}, ...) pkg/usermem/usermem.go:516 +0xcf gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).pwrite(0xc00218a300, {0x205f0c0, 0xc001aac588}, {{0x2055d58, 0xc002064008}, {0x0, 0x1, 0x7f0572800000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:553 +0x91b gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).Write(0xc00218a300, {0x205f0c0, 0xc001aac588}, {{0x2055d58, 0xc002064008}, {0x0, 0x1, 0x7f0572800000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:570 +0x12a gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc00218a300, {0x205f0c0, 0xc001aac588}, {{0x2055d58, 0xc002064008}, {0x0, 0x1, 0x7f0572800000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:679 +0x145 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write(0xc001aac588, 0xc00218a300, {{0x2055d58, 0xc002064008}, {0x0, 0x1, 0x7f0572800000, 0x2000}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:347 +0xa5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write(0xc001aac588, 0x0?, {{0x3}, {0x7f0572800000}, {0x2000}, {0x1bc}, {0x0}, {0x203}}) pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x38f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001aac588, 0x1, {{0x3}, {0x7f0572800000}, {0x2000}, {0x1bc}, {0x0}, {0x203}}) pkg/sentry/kernel/task_syscall.go:143 +0xb9f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001aac588, 0x1, {{0x3}, {0x7f0572800000}, {0x2000}, {0x1bc}, {0x0}, {0x203}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001aac588, 0x1, {{0x3}, {0x7f0572800000}, {0x2000}, {0x1bc}, {0x0}, {0x203}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001aac588) pkg/sentry/kernel/task_syscall.go:258 +0x54a gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001aac588?, 0xc001aac588) pkg/sentry/kernel/task_run.go:269 +0x2295 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001aac588, 0x340) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 2764 pkg/sentry/kernel/task_start.go:400 +0x185 known lock chain: mm.mappingRWMutex -> tmpfs.filesystemRWMutex -> tmpfs.inodeMutex ====== mm.mappingRWMutex -> tmpfs.filesystemRWMutex ===== goroutine 639 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystemRWMutex).RLock(0xc0006c5588) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/filesystem_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).StatAt(0xc0006c5520, {0x205f270, 0xc0007f2750}, 0xc000b1f688, {0xd37ae8?, 0x30000000?}) pkg/sentry/fsimpl/tmpfs/filesystem.go:760 +0xa8 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Stat(0xc000250770, {0x205f270, 0xc0007f2750}, {0x48352c?, 0x0?}) pkg/sentry/vfs/file_description.go:540 +0x322 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DeviceID(0xc000250770) pkg/sentry/vfs/file_description.go:823 +0x65 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).appendVMAMapsEntryLocked(0x485195?, {0x205f270, 0xc0007f2750}, {0xc000da0008?, 0xc000bfb368?}, 0xc000d1b770) pkg/sentry/mm/procfs.go:118 +0x19d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).vmaMapsEntryLocked(0xc000d9a008, {0x205f270, 0xc0007f2750}, {0xc000da0008?, 0x47906e?}) pkg/sentry/mm/procfs.go:104 +0xcf gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).DebugString(0xc000d9a008, {0x205f270, 0xc0007f2750}) pkg/sentry/mm/debug.go:49 +0x1a5 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).String(0xc000d9a008) pkg/sentry/mm/debug.go:38 +0x45 fmt.(*pp).handleMethods(0xc000d37a00, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:673 +0x6eb fmt.(*pp).printArg(0xc000d37a00, {0x1e335c0, 0xc000d9a008}, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:756 +0xb4c fmt.(*pp).doPrintf(0xc000d37a00, {0xc000b12ab0, 0x24}, {0xc000d1b740, 0x1, 0x1}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:1074 +0x5d0 fmt.Sprintf({0xc000b12ab0, 0x24}, {0xc000d1b740, 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({0xc000bfbab0?}, 0x3, 0x2, {0x2cbbde0?, 0x1?, 0x2dded60?}, {0xc000b12ab0, 0x24}, {0xc000d1b740, 0x1, ...}) pkg/log/glog.go:82 +0x32a gvisor.dev/gvisor/pkg/log.(*BasicLogger).DebugfAtDepth(0xc0002c0030, 0x2, {0xc000b12ab0, 0x24}, {0xc000d1b740, 0x1, 0x1}) pkg/log/log.go:220 +0x128 gvisor.dev/gvisor/pkg/log.DebugfAtDepth(0x1, {0xc000b12ab0, 0x24}, {0xc000d1b740, 0x1, 0x1}) pkg/log/log.go:295 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Debugf(0xc000893208, {0x1e46ecf, 0xc}, {0xc000d1b740, 0x1, 0x1}) pkg/sentry/kernel/task_log.go:54 +0xcd gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).DebugDumpState(0xc000893208) pkg/sentry/kernel/task_log.go:71 +0x11c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000893208?, 0xc000893208) pkg/sentry/kernel/task_run.go:313 +0x2025 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000893208, 0x9c) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 638 pkg/sentry/kernel/task_start.go:400 +0x185 ====== tmpfs.filesystemRWMutex -> tmpfs.inodeMutex ===== goroutine 1 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeMutex).Lock(0xc0006cec88) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_mutex.go:33 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).touchCMtime(0xc0006cec58) pkg/sentry/fsimpl/tmpfs/tmpfs.go:824 +0xb8 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).doCreateAt(0xc0006c5520, {0x205f390, 0xc0008ac4e0}, 0xc0006d0488, 0x0, 0xc0006adc68) pkg/sentry/fsimpl/tmpfs/filesystem.go:219 +0x633 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt(0xc0006c5520, {0x205f390, 0xc0008ac4e0}, 0xc0006d0488, {0x1e4803c, 0xd}) pkg/sentry/fsimpl/tmpfs/filesystem.go:783 +0xf3 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SymlinkAt(0xc0002751e0, {0x205f390, 0xc0008ac4e0}, 0xc00019a600, 0xc000260b90, {0x1e4803c, 0xd}) pkg/sentry/vfs/vfs.go:695 +0x303 gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.userspaceInit({0x205f390, 0xc0008ac4e0}, 0xc0002751e0, 0xc00019a600, {0xc000244e70?, 0xc0006cec08?}, 0x0) pkg/sentry/fsimpl/dev/dev.go:164 +0x33e gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.FilesystemType.GetFilesystem({}, {0x205f390, 0xc0008ac4e0}, 0xc0002751e0, 0xc00019a600, {0x0, 0x0}, {0x1, {0x0, 0x0}, ...}) pkg/sentry/fsimpl/dev/dev.go:60 +0x36e gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).NewFilesystem(0xc0002751e0, {0x205f390, 0xc0008ac4e0}, 0xc00019a600, {0x0, 0x0}, {0x1e3e65d, 0x3}, 0xc0006cacc0) pkg/sentry/vfs/mount.go:252 +0x1d4 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountDisconnected(0xc0002751e0, {0x205f390, 0xc0008ac4e0}, 0xc00019a600, {0x0, 0x0}, {0x1e3e65d, 0x3}, 0xc0006cacc0) pkg/sentry/vfs/mount.go:271 +0xc5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountAt(0xc0002751e0, {0x205f390, 0xc0008ac4e0}, 0xc00019a600, {0x0, 0x0}, 0xc0006ae520, {0x1e3e65d, 0x3}, 0xc0006cacc0) pkg/sentry/vfs/mount.go:632 +0xe5 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmount(0xc000a449c0, {0x205f390, 0xc0008ac4e0}, 0xc000351200, 0xc0002bcc08, 0xc0009450e0, 0xc00019a600, 0xc000132ca8) runsc/boot/vfs.go:850 +0xb52 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmounts(0xc000a449c0, {0x205f390, 0xc0008ac4e0}, 0xc000351200, 0xc0002bcc08, 0xc0009450e0, 0xc00019a600) runsc/boot/vfs.go:739 +0x9ed gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountAll(0xc000a449c0, {0x205f390, 0xc0008ac4e0}, 0xc00019a600, 0xc000351200, 0xc0002bcc08, 0xc000a44a90) runsc/boot/vfs.go:468 +0x585 gvisor.dev/gvisor/runsc/boot.setupContainerVFS({0x205f390, 0xc000882120}, 0xc000263198, 0xc000a449c0, 0xc0002631c8) runsc/boot/vfs.go:177 +0x2ce gvisor.dev/gvisor/runsc/boot.(*Loader).createContainerProcess(0xc000263188, 0xc000263198) runsc/boot/loader.go:1159 +0xb1b gvisor.dev/gvisor/runsc/boot.(*Loader).run(0xc000263188) runsc/boot/loader.go:917 +0x372 gvisor.dev/gvisor/runsc/boot.(*Loader).Run(0xc000263188) runsc/boot/loader.go:865 +0x2f gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc0001848c0, {0xc0002260e0?, 0x11?}, 0xc000622070, {0xc0002641c0, 0x2, 0xc0002641c0?}) runsc/cmd/boot.go:564 +0x3525 github.com/google/subcommands.(*Commander).Execute(0xc000252000, {0x204e990, 0x3d3f820}, {0xc0002641c0, 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