panic: WARNING: circular locking detected: tmpfs.inodeMutex -> mm.mappingRWMutex: goroutine 3896 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc0001e1cd0, 0xc000c98918) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x326 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc0001e1950, 0xc0001e1cb0, {0xc0019af320, 0x1, 0x1}) pkg/sync/locking/lockdep.go:112 +0x505 gvisor.dev/gvisor/pkg/sync/locking.checkLock.func1(0xc0001e1cb0, 0xc000c98aa8?) pkg/sync/locking/lockdep.go:115 +0x74 gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc0001e1c40, 0xc000c98b58) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x326 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc0001e1950, 0xc0001e1c20, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x505 gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc0001e1950, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x390 gvisor.dev/gvisor/pkg/sentry/mm.(*mappingRWMutex).RLock(0xc000cb205c) bazel-out/k8-fastbuild/bin/pkg/sentry/mm/mapping_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc000cb2008, {0x2061720, 0xc001cf0588}, {0x485195?, 0x2cbf5a8?}, {0x1?, 0x0?, 0x0?}, 0x0, 0xc000c99080) pkg/sentry/mm/io.go:544 +0x145 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc000cb2008, {0x2061720, 0xc001cf0588}, {0x0?, 0x0?, 0x0?, 0xc0001b8960?}, {0x1, 0x0, 0x0}, ...) pkg/sentry/mm/io.go:606 +0x8ae gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyInTo(0xc000cb2008, {0x2061720, 0xc001cf0588}, {0x0?, 0x5?, 0x484ca9?, 0xc000c99130?}, {0x203e0c0, 0xc0001b8960}, {0x0, ...}) pkg/sentry/mm/io.go:324 +0x2f0 gvisor.dev/gvisor/pkg/usermem.IOSequence.CopyInTo({{0x20583b8, 0xc000cb2008}, {0x0, 0x1, 0x7fa7ae000000, 0x2000}, {0x0, 0x1}}, {0x2061720, 0xc001cf0588}, ...) pkg/usermem/usermem.go:516 +0xcf gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).pwrite(0xc0014b8c80, {0x2061720, 0xc001cf0588}, {{0x20583b8, 0xc000cb2008}, {0x0, 0x1, 0x7fa7ae000000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:553 +0x91b gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).Write(0xc0014b8c80, {0x2061720, 0xc001cf0588}, {{0x20583b8, 0xc000cb2008}, {0x0, 0x1, 0x7fa7ae000000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:570 +0x12a gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc0014b8c80, {0x2061720, 0xc001cf0588}, {{0x20583b8, 0xc000cb2008}, {0x0, 0x1, 0x7fa7ae000000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:679 +0x145 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write(0xc001cf0588, 0xc0014b8c80, {{0x20583b8, 0xc000cb2008}, {0x0, 0x1, 0x7fa7ae000000, 0x2000}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:347 +0xa5 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write(0xc001cf0588, 0x0?, {{0x3}, {0x7fa7ae000000}, {0x2000}, {0xc4}, {0x0}, {0x171}}) pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x38f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001cf0588, 0x1, {{0x3}, {0x7fa7ae000000}, {0x2000}, {0xc4}, {0x0}, {0x171}}) pkg/sentry/kernel/task_syscall.go:143 +0xb9f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001cf0588, 0x1, {{0x3}, {0x7fa7ae000000}, {0x2000}, {0xc4}, {0x0}, {0x171}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001cf0588, 0x1, {{0x3}, {0x7fa7ae000000}, {0x2000}, {0xc4}, {0x0}, {0x171}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001cf0588) pkg/sentry/kernel/task_syscall.go:258 +0x54a gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001cf0588?, 0xc001cf0588) pkg/sentry/kernel/task_run.go:269 +0x2295 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001cf0588, 0x277) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 3922 pkg/sentry/kernel/task_start.go:400 +0x185 known lock chain: mm.mappingRWMutex -> tmpfs.filesystemRWMutex -> tmpfs.iterMutex -> tmpfs.inodeMutex ====== mm.mappingRWMutex -> tmpfs.filesystemRWMutex ===== goroutine 3277 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystemRWMutex).RLock(0xc0001fe068) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/filesystem_mutex.go:59 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).StatAt(0xc0001fe000, {0x20618d0, 0xc000965710}, 0xc001528008, {0xf14f88?, 0x30000000?}) pkg/sentry/fsimpl/tmpfs/filesystem.go:760 +0xa8 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Stat(0xc0014a0e70, {0x20618d0, 0xc000965710}, {0x1a6bdb0?, 0x0?}) pkg/sentry/vfs/file_description.go:540 +0x322 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DeviceID(0xc0014a0e70) pkg/sentry/vfs/file_description.go:823 +0x65 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).appendVMAMapsEntryLocked(0x485195?, {0x20618d0, 0xc000965710}, {0xc000da8d08?, 0xc0015ff368?}, 0xc001504fd0) pkg/sentry/mm/procfs.go:118 +0x19d gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).vmaMapsEntryLocked(0xc0004ef008, {0x20618d0, 0xc000965710}, {0xc000da8d08?, 0x47906e?}) pkg/sentry/mm/procfs.go:104 +0xcf gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).DebugString(0xc0004ef008, {0x20618d0, 0xc000965710}) pkg/sentry/mm/debug.go:49 +0x1a5 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).String(0xc0004ef008) pkg/sentry/mm/debug.go:38 +0x45 fmt.(*pp).handleMethods(0xc000f14dd0, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:673 +0x6eb fmt.(*pp).printArg(0xc000f14dd0, {0x1e34dc0, 0xc0004ef008}, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:756 +0xb4c fmt.(*pp).doPrintf(0xc000f14dd0, {0xc0015cad20, 0x24}, {0xc001504f60, 0x1, 0x1}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:1074 +0x5d0 fmt.Sprintf({0xc0015cad20, 0x24}, {0xc001504f60, 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({0xc0015ffab0?}, 0x3, 0x2, {0x2cbf160?, 0x1?, 0x2de21c0?}, {0xc0015cad20, 0x24}, {0xc001504f60, 0x1, ...}) pkg/log/glog.go:82 +0x32a gvisor.dev/gvisor/pkg/log.(*BasicLogger).DebugfAtDepth(0xc00060d548, 0x2, {0xc0015cad20, 0x24}, {0xc001504f60, 0x1, 0x1}) pkg/log/log.go:220 +0x128 gvisor.dev/gvisor/pkg/log.DebugfAtDepth(0x1, {0xc0015cad20, 0x24}, {0xc001504f60, 0x1, 0x1}) pkg/log/log.go:295 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Debugf(0xc0015ce008, {0x1e486de, 0xc}, {0xc001504f60, 0x1, 0x1}) pkg/sentry/kernel/task_log.go:54 +0xcd gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).DebugDumpState(0xc0015ce008) pkg/sentry/kernel/task_log.go:71 +0x11c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0015ce008?, 0xc0015ce008) pkg/sentry/kernel/task_run.go:313 +0x2025 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0015ce008, 0x223) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 3331 pkg/sentry/kernel/task_start.go:400 +0x185 ====== tmpfs.filesystemRWMutex -> tmpfs.iterMutex ===== goroutine 1 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*iterMutex).Lock(0xc0005197e0) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/iter_mutex.go:33 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*directory).insertChildLocked(0xc000519408, 0xc000268c80, {0x1e3fbcf, 0x2}) pkg/sentry/fsimpl/tmpfs/directory.go:69 +0x1c5 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt.func1(0xc000519408, {0x1e3fbcf, 0x2}) pkg/sentry/fsimpl/tmpfs/filesystem.go:794 +0x159 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).doCreateAt(0xc0001fe000, {0x20619f0, 0xc000a50040}, 0xc00060e488, 0x0, 0xc000695c68) pkg/sentry/fsimpl/tmpfs/filesystem.go:210 +0x584 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt(0xc0001fe000, {0x20619f0, 0xc000a50040}, 0xc00060e488, {0x1e4984b, 0xd}) pkg/sentry/fsimpl/tmpfs/filesystem.go:783 +0xf3 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SymlinkAt(0xc00027d1e0, {0x20619f0, 0xc000a50040}, 0xc00022d320, 0xc000268c30, {0x1e4984b, 0xd}) pkg/sentry/vfs/vfs.go:695 +0x303 gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.userspaceInit({0x20619f0, 0xc000a50040}, 0xc00027d1e0, 0xc00022d320, {0xc0009982c0?, 0xc000519408?}, 0x0) pkg/sentry/fsimpl/dev/dev.go:164 +0x33e gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.FilesystemType.GetFilesystem({}, {0x20619f0, 0xc000a50040}, 0xc00027d1e0, 0xc00022d320, {0x0, 0x0}, {0x1, {0x0, 0x0}, ...}) pkg/sentry/fsimpl/dev/dev.go:60 +0x36e gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).NewFilesystem(0xc00027d1e0, {0x20619f0, 0xc000a50040}, 0xc00022d320, {0x0, 0x0}, {0x1e3fe5d, 0x3}, 0xc000197ac0) pkg/sentry/vfs/mount.go:252 +0x1d4 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountDisconnected(0xc00027d1e0, {0x20619f0, 0xc000a50040}, 0xc00022d320, {0x0, 0x0}, {0x1e3fe5d, 0x3}, 0xc000197ac0) pkg/sentry/vfs/mount.go:271 +0xc5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountAt(0xc00027d1e0, {0x20619f0, 0xc000a50040}, 0xc00022d320, {0x0, 0x0}, 0xc000696520, {0x1e3fe5d, 0x3}, 0xc000197ac0) pkg/sentry/vfs/mount.go:632 +0xe5 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmount(0xc000a35380, {0x20619f0, 0xc000a50040}, 0xc00017e1b0, 0xc0004fe608, 0xc000a48ab0, 0xc00022d320, 0xc0003ff608) runsc/boot/vfs.go:850 +0xb52 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmounts(0xc000a35380, {0x20619f0, 0xc000a50040}, 0xc00017e1b0, 0xc0004fe608, 0xc000a48ab0, 0xc00022d320) runsc/boot/vfs.go:739 +0x9ed gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountAll(0xc000a35380, {0x20619f0, 0xc000a50040}, 0xc00022d320, 0xc00017e1b0, 0xc0004fe608, 0xc000a35450) runsc/boot/vfs.go:468 +0x585 gvisor.dev/gvisor/runsc/boot.setupContainerVFS({0x20619f0, 0xc00085fde0}, 0xc0003f0298, 0xc000a35380, 0xc0003f02c8) runsc/boot/vfs.go:177 +0x2ce gvisor.dev/gvisor/runsc/boot.(*Loader).createContainerProcess(0xc0003f0288, 0xc0003f0298) runsc/boot/loader.go:1159 +0xb1b gvisor.dev/gvisor/runsc/boot.(*Loader).run(0xc0003f0288) runsc/boot/loader.go:917 +0x372 gvisor.dev/gvisor/runsc/boot.(*Loader).Run(0xc0003f0288) runsc/boot/loader.go:865 +0x2f gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc00017c8c0, {0xc00022e0f0?, 0x11?}, 0xc000367880, {0xc00060a020, 0x2, 0xc00060a020?}) runsc/cmd/boot.go:564 +0x3525 github.com/google/subcommands.(*Commander).Execute(0xc000258000, {0x2050ff0, 0x3d42c60}, {0xc00060a020, 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 269 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeMutex).Lock(0xc000f70088) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_mutex.go:33 +0x4d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).touchAtime(0xc000f70058, 0xc000ed8420) pkg/sentry/fsimpl/tmpfs/tmpfs.go:807 +0x168 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*directoryFD).IterDirents(0xc000fea000, {0x485195?, 0x2c8fa14?}, {0x203cec0, 0xc000fd6080}) pkg/sentry/fsimpl/tmpfs/directory.go:125 +0x24b gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).IterDirents(0xc000fea000, {0x2061720, 0xc000959908}, {0x203cec0, 0xc000fd6080}) pkg/sentry/vfs/file_description.go:691 +0x17f gvisor.dev/gvisor/pkg/sentry/syscalls/linux.getdents(0xc000959908, {{0x3}, {0x562ff13184a0}, {0x8000}, {0x1000}, {0xba67512}, {0xa}}, 0x1) pkg/sentry/syscalls/linux/sys_getdents.go:69 +0x29c gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Getdents64(0xc000959908, 0x0?, {{0x3}, {0x562ff13184a0}, {0x8000}, {0x1000}, {0xba67512}, {0xa}}) pkg/sentry/syscalls/linux/sys_getdents.go:36 +0x6b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000959908, 0xd9, {{0x3}, {0x562ff13184a0}, {0x8000}, {0x1000}, {0xba67512}, {0xa}}) pkg/sentry/kernel/task_syscall.go:143 +0xb9f gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000959908, 0xd9, {{0x3}, {0x562ff13184a0}, {0x8000}, {0x1000}, {0xba67512}, {0xa}}) pkg/sentry/kernel/task_syscall.go:323 +0x85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000959908, 0xd9, {{0x3}, {0x562ff13184a0}, {0x8000}, {0x1000}, {0xba67512}, {0xa}}) pkg/sentry/kernel/task_syscall.go:283 +0xc7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000959908) pkg/sentry/kernel/task_syscall.go:258 +0x54a gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000959908?, 0xc000959908) pkg/sentry/kernel/task_run.go:269 +0x2295 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000959908, 0xa) pkg/sentry/kernel/task_run.go:97 +0x41b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 267 pkg/sentry/kernel/task_start.go:400 +0x185