panic: WARNING: circular locking detected: tmpfs.inodeMutex -> mm.mappingRWMutex: goroutine 4221 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc0003921d0, 0xc001234828) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x1ea gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc000207dd0, 0xc0003921b0, {0xc00298e560, 0x1, 0x1}) pkg/sync/locking/lockdep.go:112 +0x4a5 gvisor.dev/gvisor/pkg/sync/locking.checkLock.func1(0xc0003921b0, 0xc0012349b0?) pkg/sync/locking/lockdep.go:115 +0x65 gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc000392140, 0xc001234a68) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x1ea gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc000207dd0, 0xc000392120, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x4a5 gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc000207dd0, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x2ec gvisor.dev/gvisor/pkg/sentry/mm.(*mappingRWMutex).RLock(0xc003cc405c) bazel-out/k8-fastbuild/bin/pkg/sentry/mm/mapping_mutex.go:59 +0x3c gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc003cc4008, {0x1f98aa0, 0xc004153208}, {0xc001234e58?, 0xc001234ea0?}, {0x85?, 0x84?, 0x41?}, 0x0, 0xc001235018) pkg/sentry/mm/io.go:544 +0xf8 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc003cc4008, {0x1f98aa0, 0xc004153208}, {0x0?, 0xc001234f90?, 0x7f8b75864688?, 0x18?}, {0x1, 0x0, 0x0}, ...) pkg/sentry/mm/io.go:606 +0x6e5 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyInTo(0xc003cc4008, {0x1f98aa0, 0xc004153208}, {0x0?, 0x33?, 0xc003fabf08?, 0xc00bb47170?}, {0x1f75420, 0xc00275c030}, {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(0xc003186000, {0x1f98aa0, 0xc004153208}, {{0x1f8f4f8, 0xc003cc4008}, {0x0, 0x1, 0x0, 0x6b}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:553 +0x911 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).Write(0xc003186000, {0x1f98aa0, 0xc004153208}, {{0x1f8f4f8, 0xc003cc4008}, {0x0, 0x1, 0x0, 0x6b}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:570 +0x115 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc003186000, {0x1f98aa0, 0xc004153208}, {{0x1f8f4f8, 0xc003cc4008}, {0x0, 0x1, 0x0, 0x6b}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:679 +0x119 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write(0xc004153208, 0xc003186000, {{0x1f8f4f8, 0xc003cc4008}, {0x0, 0x1, 0x0, 0x6b}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:347 +0x91 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write(0xc004153208, 0x0?, {{0xb}, {0x0}, {0x6b}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x2b2 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc004153208, 0x1, {{0xb}, {0x0}, {0x6b}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x995 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc004153208, 0x1, {{0xb}, {0x0}, {0x6b}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc004153208, 0x1, {{0xb}, {0x0}, {0x6b}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc004153208) pkg/sentry/kernel/task_syscall.go:258 +0x4b0 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc004153208?, 0xc004153208) pkg/sentry/kernel/task_run.go:269 +0x1fae gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc004153208, 0x567) pkg/sentry/kernel/task_run.go:97 +0x4fb created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 4239 pkg/sentry/kernel/task_start.go:400 +0x165 known lock chain: mm.mappingRWMutex -> tmpfs.filesystemRWMutex -> tmpfs.iterMutex -> tmpfs.inodeMutex ====== mm.mappingRWMutex -> tmpfs.filesystemRWMutex ===== goroutine 1768 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystemRWMutex).RLock(0xc0003727b8) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/filesystem_mutex.go:59 +0x3c gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).StatAt(0xc000372750, {0x1f98c50, 0xc0001a0720}, 0xc0031b2008, {0x1?, 0x0?}) pkg/sentry/fsimpl/tmpfs/filesystem.go:760 +0x97 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Stat(0xc001b01570, {0x1f98c50, 0xc0001a0720}, {0x1ceb120?, 0xc0?}) pkg/sentry/vfs/file_description.go:540 +0x2f6 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DeviceID(0xc001b01570) pkg/sentry/vfs/file_description.go:823 +0x73 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).appendVMAMapsEntryLocked(0x483079?, {0x1f98c50, 0xc0001a0720}, {0xc002e48d08?, 0xcc230a?}, 0xc001ceb310) pkg/sentry/mm/procfs.go:118 +0x14b gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).vmaMapsEntryLocked(0xc002bff008, {0x1f98c50, 0xc0001a0720}, {0xc002e48d08?, 0x0?}) pkg/sentry/mm/procfs.go:104 +0xfb gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).DebugString(0xc002bff008, {0x1f98c50, 0xc0001a0720}) pkg/sentry/mm/debug.go:49 +0x1f1 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).String(0xc002bff008) pkg/sentry/mm/debug.go:38 +0x54 fmt.(*pp).handleMethods(0xc0031ae1a0, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:673 +0x6eb fmt.(*pp).printArg(0xc0031ae1a0, {0x1d452a0, 0xc002bff008}, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:756 +0xb4c fmt.(*pp).doPrintf(0xc0031ae1a0, {0xc00193f170, 0x24}, {0xc00319ae90, 0x1, 0x1}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:1074 +0x5d0 fmt.Sprintf({0xc00193f170, 0x24}, {0xc00319ae90, 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({0xc00019c7df?}, 0x3, 0x2, {0x2ba0988?, 0x484ca9?, 0x2ba4380?}, {0xc00193f170, 0x24}, {0xc00319ae90, 0x1, ...}) pkg/log/glog.go:82 +0x265 gvisor.dev/gvisor/pkg/log.(*BasicLogger).DebugfAtDepth(0xc00019c7c8, 0x2, {0xc00193f170, 0x24}, {0xc00319ae90, 0x1, 0x1}) pkg/log/log.go:220 +0x104 gvisor.dev/gvisor/pkg/log.DebugfAtDepth(0x1, {0xc00193f170, 0x24}, {0xc00319ae90, 0x1, 0x1}) pkg/log/log.go:295 +0x79 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Debugf(0xc002f4c008, {0x1d58bcc, 0xc}, {0xc00319ae90, 0x1, 0x1}) pkg/sentry/kernel/task_log.go:54 +0xad gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).DebugDumpState(0xc002f4c008) pkg/sentry/kernel/task_log.go:71 +0xdd gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc002f4c008?, 0xc002f4c008) pkg/sentry/kernel/task_run.go:313 +0x1e32 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc002f4c008, 0x1d3) pkg/sentry/kernel/task_run.go:97 +0x4fb created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 259 pkg/sentry/kernel/task_start.go:400 +0x165 ====== tmpfs.filesystemRWMutex -> tmpfs.iterMutex ===== goroutine 1 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*iterMutex).Lock(0xc000378be0) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/iter_mutex.go:33 +0x3c gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*directory).insertChildLocked(0xc000378808, 0xc0001fe550, {0x1d500cf, 0x2}) pkg/sentry/fsimpl/tmpfs/directory.go:69 +0x18e gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt.func1(0xc000378808, {0x1d500cf, 0x2}) pkg/sentry/fsimpl/tmpfs/filesystem.go:794 +0x1f1 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).doCreateAt(0xc000372750, {0x1f98d70, 0xc0004403e0}, 0xc000526008, 0x0, 0xc0002d5c18) pkg/sentry/fsimpl/tmpfs/filesystem.go:210 +0x46b gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt(0xc000372750, {0x1f98d70, 0xc0004403e0}, 0xc000526008, {0x1d59d39, 0xd}) pkg/sentry/fsimpl/tmpfs/filesystem.go:783 +0xe5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SymlinkAt(0xc0002511e0, {0x1f98d70, 0xc0004403e0}, 0xc000192900, 0xc0002d5e00, {0x1d59d39, 0xd}) pkg/sentry/vfs/vfs.go:695 +0x22a gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.userspaceInit({0x1f98d70, 0xc0004403e0}, 0xc0002511e0, 0xc000192900, {0xc0002253f0?, 0xc000378808?}, 0x0) pkg/sentry/fsimpl/dev/dev.go:164 +0x445 gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.FilesystemType.GetFilesystem({}, {0x1f98d70, 0xc0004403e0}, 0xc0002511e0, 0xc000192900, {0x0, 0x0}, {0x1, {0x0, 0x0}, ...}) pkg/sentry/fsimpl/dev/dev.go:60 +0x33d gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).NewFilesystem(0xc0002511e0, {0x1f98d70, 0xc0004403e0}, 0xc000192900, {0x0, 0x0}, {0x1d5035d, 0x3}, 0xc00035ac00) pkg/sentry/vfs/mount.go:252 +0x198 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountDisconnected(0xc0002511e0, {0x1f98d70, 0xc0004403e0}, 0xc000192900, {0x0, 0x0}, {0x1d5035d, 0x3}, 0xc00035ac00) pkg/sentry/vfs/mount.go:271 +0xa5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountAt(0xc0002511e0, {0x1f98d70, 0xc0004403e0}, 0xc000192900, {0x0, 0x0}, 0xc0002d64f8, {0x1d5035d, 0x3}, 0xc00035ac00) pkg/sentry/vfs/mount.go:632 +0xd1 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmount(0xc000652d00, {0x1f98d70, 0xc0004403e0}, 0xc0004601b0, 0xc0001a9208, 0xc00066cb10, 0xc000192900, 0xc0003ef568) runsc/boot/vfs.go:850 +0xb31 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmounts(0xc000652d00, {0x1f98d70, 0xc0004403e0}, 0xc0004601b0, 0xc0001a9208, 0xc00066cb10, 0xc000192900) runsc/boot/vfs.go:739 +0x9ed gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountAll(0xc000652d00, {0x1f98d70, 0xc0004403e0}, 0xc000192900, 0xc0004601b0, 0xc0001a9208, 0xc000652dd0) runsc/boot/vfs.go:468 +0x530 gvisor.dev/gvisor/runsc/boot.setupContainerVFS({0x1f98d70, 0xc000440160}, 0xc000241198, 0xc000652d00, 0xc0002411c8) runsc/boot/vfs.go:177 +0x4ee gvisor.dev/gvisor/runsc/boot.(*Loader).createContainerProcess(0xc000241188, 0xc000241198) runsc/boot/loader.go:1159 +0xb1b gvisor.dev/gvisor/runsc/boot.(*Loader).run(0xc000241188) runsc/boot/loader.go:917 +0x345 gvisor.dev/gvisor/runsc/boot.(*Loader).Run(0xc000241188) runsc/boot/loader.go:865 +0x2f gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc000184380, {0xc0000402e0?, 0x11?}, 0xc00045d490, {0xc000440320, 0x2, 0xc000440320?}) runsc/cmd/boot.go:564 +0x3545 github.com/google/subcommands.(*Commander).Execute(0xc000232000, {0x1f88150, 0x3b04ee0}, {0xc000440320, 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 184 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeMutex).Lock(0xc000747088) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_mutex.go:33 +0x3c gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).touchAtime(0xc000747058, 0xc00047e580) pkg/sentry/fsimpl/tmpfs/tmpfs.go:807 +0xff gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*directoryFD).IterDirents(0xc000233a00, {0xc000dba000?, 0xc000fb94c8?}, {0x1f74000, 0xc0007f4e80}) pkg/sentry/fsimpl/tmpfs/directory.go:125 +0x365 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).IterDirents(0xc000233a00, {0x1f98aa0, 0xc000c8a008}, {0x1f74000, 0xc0007f4e80}) pkg/sentry/vfs/file_description.go:691 +0x15e gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getdents(0xc000c8a008, {{0x3}, {0x558bba0554a0}, {0x8000}, {0x1000}, {0xccb76ef}, {0x6}}, 0x1) pkg/sentry/syscalls/linux/sys_getdents.go:69 +0x217 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Getdents64(0xc000c8a008, 0x0?, {{0x3}, {0x558bba0554a0}, {0x8000}, {0x1000}, {0xccb76ef}, {0x6}}) pkg/sentry/syscalls/linux/sys_getdents.go:36 +0x5a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000c8a008, 0xd9, {{0x3}, {0x558bba0554a0}, {0x8000}, {0x1000}, {0xccb76ef}, {0x6}}) pkg/sentry/kernel/task_syscall.go:143 +0x995 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000c8a008, 0xd9, {{0x3}, {0x558bba0554a0}, {0x8000}, {0x1000}, {0xccb76ef}, {0x6}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000c8a008, 0xd9, {{0x3}, {0x558bba0554a0}, {0x8000}, {0x1000}, {0xccb76ef}, {0x6}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000c8a008) pkg/sentry/kernel/task_syscall.go:258 +0x4b0 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000c8a008?, 0xc000c8a008) pkg/sentry/kernel/task_run.go:269 +0x1fae gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000c8a008, 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