panic: WARNING: circular locking detected: tmpfs.inodeMutex -> mm.mappingRWMutex: goroutine 5918 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc0003482f0, 0xc0040f8a68) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x1ea gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc000348000, 0xc0003482d0, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x4a5 gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc000348000, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x2ec gvisor.dev/gvisor/pkg/sentry/mm.(*mappingRWMutex).RLock(0xc00374a05c) bazel-out/k8-fastbuild/bin/pkg/sentry/mm/mapping_mutex.go:59 +0x3c gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc00374a008, {0x1f8d8c0, 0xc00bd82c88}, {0x0?, 0x484ca9?}, {0x10?, 0x90?, 0xf?}, 0x0, 0xc0040f9018) pkg/sentry/mm/io.go:544 +0xf8 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withVecInternalMappings(0xc00374a008, {0x1f8d8c0, 0xc00bd82c88}, {0x0?, 0xc0040f8f90?, 0x7f18f245f878?, 0x18?}, {0x1, 0x0, 0x0}, ...) pkg/sentry/mm/io.go:606 +0x6e5 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyInTo(0xc00374a008, {0x1f8d8c0, 0xc00bd82c88}, {0x0?, 0x10001?, 0x0?, 0x0?}, {0x1f6a300, 0xc00b28d0b0}, {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(0xc005704300, {0x1f8d8c0, 0xc00bd82c88}, {{0x1f84338, 0xc00374a008}, {0x0, 0x1, 0x7f1a5ae00000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:553 +0x911 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*regularFileFD).Write(0xc005704300, {0x1f8d8c0, 0xc00bd82c88}, {{0x1f84338, 0xc00374a008}, {0x0, 0x1, 0x7f1a5ae00000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/fsimpl/tmpfs/regular_file.go:570 +0x115 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Write(0xc005704300, {0x1f8d8c0, 0xc00bd82c88}, {{0x1f84338, 0xc00374a008}, {0x0, 0x1, 0x7f1a5ae00000, 0x2000}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:679 +0x119 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.write(0xc00bd82c88, 0xc005704300, {{0x1f84338, 0xc00374a008}, {0x0, 0x1, 0x7f1a5ae00000, 0x2000}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:347 +0x91 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Write(0xc00bd82c88, 0x0?, {{0x7}, {0x7f1a5ae00000}, {0x2000}, {0x1c8}, {0x0}, {0x1ec}}) pkg/sentry/syscalls/linux/sys_read_write.go:316 +0x2b2 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00bd82c88, 0x1, {{0x7}, {0x7f1a5ae00000}, {0x2000}, {0x1c8}, {0x0}, {0x1ec}}) pkg/sentry/kernel/task_syscall.go:143 +0x995 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00bd82c88, 0x1, {{0x7}, {0x7f1a5ae00000}, {0x2000}, {0x1c8}, {0x0}, {0x1ec}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00bd82c88, 0x1, {{0x7}, {0x7f1a5ae00000}, {0x2000}, {0x1c8}, {0x0}, {0x1ec}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00bd82c88) pkg/sentry/kernel/task_syscall.go:258 +0x4b0 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00bd82c88?, 0xc00bd82c88) pkg/sentry/kernel/task_run.go:269 +0x1fae gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00bd82c88, 0x7e1) pkg/sentry/kernel/task_run.go:97 +0x4fb created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 6103 pkg/sentry/kernel/task_start.go:400 +0x165 known lock chain: mm.mappingRWMutex -> tmpfs.filesystemRWMutex -> tmpfs.inodeMutex ====== mm.mappingRWMutex -> tmpfs.filesystemRWMutex ===== goroutine 5003 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystemRWMutex).RLock(0xc0005d50a8) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/filesystem_mutex.go:59 +0x3c gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).StatAt(0xc0005d5040, {0x1f8da70, 0xc0003b0600}, 0xc00184e488, {0x1?, 0x0?}) pkg/sentry/fsimpl/tmpfs/filesystem.go:760 +0x97 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Stat(0xc000d48ee0, {0x1f8da70, 0xc0003b0600}, {0x48b120?, 0xc0?}) pkg/sentry/vfs/file_description.go:540 +0x2f6 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DeviceID(0xc000d48ee0) pkg/sentry/vfs/file_description.go:823 +0x73 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).appendVMAMapsEntryLocked(0x483079?, {0x1f8da70, 0xc0003b0600}, {0xc001c72908?, 0xcc230a?}, 0xc00048b310) pkg/sentry/mm/procfs.go:118 +0x14b gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).vmaMapsEntryLocked(0xc001c05008, {0x1f8da70, 0xc0003b0600}, {0xc001c72908?, 0x0?}) pkg/sentry/mm/procfs.go:104 +0xfb gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).DebugString(0xc001c05008, {0x1f8da70, 0xc0003b0600}) pkg/sentry/mm/debug.go:49 +0x1f1 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).String(0xc001c05008) pkg/sentry/mm/debug.go:38 +0x54 fmt.(*pp).handleMethods(0xc006fa09c0, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:673 +0x6eb fmt.(*pp).printArg(0xc006fa09c0, {0x1d3a6e0, 0xc001c05008}, 0x73) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:756 +0xb4c fmt.(*pp).doPrintf(0xc006fa09c0, {0xc000695aa0, 0x26}, {0xc0039fd8f0, 0x1, 0x1}) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/fmt/print.go:1074 +0x5d0 fmt.Sprintf({0xc000695aa0, 0x26}, {0xc0039fd8f0, 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({0xc0003c86d7?}, 0x3, 0x2, {0x2b94908?, 0x484ca9?, 0x2b98300?}, {0xc000695aa0, 0x26}, {0xc0039fd8f0, 0x1, ...}) pkg/log/glog.go:82 +0x265 gvisor.dev/gvisor/pkg/log.(*BasicLogger).DebugfAtDepth(0xc0003c86c0, 0x2, {0xc000695aa0, 0x26}, {0xc0039fd8f0, 0x1, 0x1}) pkg/log/log.go:220 +0x104 gvisor.dev/gvisor/pkg/log.DebugfAtDepth(0x1, {0xc000695aa0, 0x26}, {0xc0039fd8f0, 0x1, 0x1}) pkg/log/log.go:295 +0x79 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Debugf(0xc00349ac88, {0x1d4dfd7, 0xc}, {0xc0039fd8f0, 0x1, 0x1}) pkg/sentry/kernel/task_log.go:54 +0xad gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).DebugDumpState(0xc00349ac88) pkg/sentry/kernel/task_log.go:71 +0xdd gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00349ac88?, 0xc00349ac88) pkg/sentry/kernel/task_run.go:313 +0x1e32 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00349ac88, 0x662) 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 ====== tmpfs.filesystemRWMutex -> tmpfs.inodeMutex ===== goroutine 1 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeMutex).Lock(0xc0001de888) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_mutex.go:33 +0x3c gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).touchCMtime(0xc0001de858) pkg/sentry/fsimpl/tmpfs/tmpfs.go:824 +0x7a gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).doCreateAt(0xc0005d5040, {0x1f8db90, 0xc0002fa1e0}, 0xc00046a908, 0x0, 0xc000047c18) pkg/sentry/fsimpl/tmpfs/filesystem.go:219 +0x525 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).SymlinkAt(0xc0005d5040, {0x1f8db90, 0xc0002fa1e0}, 0xc00046a908, {0x1d4f138, 0xd}) pkg/sentry/fsimpl/tmpfs/filesystem.go:783 +0xe5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).SymlinkAt(0xc0002851e0, {0x1f8db90, 0xc0002fa1e0}, 0xc000592420, 0xc000047e00, {0x1d4f138, 0xd}) pkg/sentry/vfs/vfs.go:695 +0x22a gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.userspaceInit({0x1f8db90, 0xc0002fa1e0}, 0xc0002851e0, 0xc000592420, {0xc000822160?, 0xc0001de808?}, 0x0) pkg/sentry/fsimpl/dev/dev.go:164 +0x445 gvisor.dev/gvisor/pkg/sentry/fsimpl/dev.FilesystemType.GetFilesystem({}, {0x1f8db90, 0xc0002fa1e0}, 0xc0002851e0, 0xc000592420, {0x0, 0x0}, {0x1, {0x0, 0x0}, ...}) pkg/sentry/fsimpl/dev/dev.go:60 +0x33d gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).NewFilesystem(0xc0002851e0, {0x1f8db90, 0xc0002fa1e0}, 0xc000592420, {0x0, 0x0}, {0x1d4577d, 0x3}, 0xc0001dac40) pkg/sentry/vfs/mount.go:252 +0x198 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountDisconnected(0xc0002851e0, {0x1f8db90, 0xc0002fa1e0}, 0xc000592420, {0x0, 0x0}, {0x1d4577d, 0x3}, 0xc0001dac40) pkg/sentry/vfs/mount.go:271 +0xa5 gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).MountAt(0xc0002851e0, {0x1f8db90, 0xc0002fa1e0}, 0xc000592420, {0x0, 0x0}, 0xc0000484f8, {0x1d4577d, 0x3}, 0xc0001dac40) pkg/sentry/vfs/mount.go:632 +0xd1 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmount(0xc000720340, {0x1f8db90, 0xc0002fa1e0}, 0xc00035b8c0, 0xc0003c7208, 0xc0006fd2f0, 0xc000592420, 0xc0003af568) runsc/boot/vfs.go:850 +0xb31 gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountSubmounts(0xc000720340, {0x1f8db90, 0xc0002fa1e0}, 0xc00035b8c0, 0xc0003c7208, 0xc0006fd2f0, 0xc000592420) runsc/boot/vfs.go:739 +0x9ed gvisor.dev/gvisor/runsc/boot.(*containerMounter).mountAll(0xc000720340, {0x1f8db90, 0xc0002fa1e0}, 0xc000592420, 0xc00035b8c0, 0xc0003c7208, 0xc000720410) runsc/boot/vfs.go:468 +0x530 gvisor.dev/gvisor/runsc/boot.setupContainerVFS({0x1f8db90, 0xc0002fa000}, 0xc000279198, 0xc000720340, 0xc0002791c8) runsc/boot/vfs.go:177 +0x4ee gvisor.dev/gvisor/runsc/boot.(*Loader).createContainerProcess(0xc000279188, 0xc000279198) runsc/boot/loader.go:1159 +0xb1b gvisor.dev/gvisor/runsc/boot.(*Loader).run(0xc000279188) runsc/boot/loader.go:917 +0x345 gvisor.dev/gvisor/runsc/boot.(*Loader).Run(0xc000279188) runsc/boot/loader.go:865 +0x2f gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc0002da8c0, {0xc0002360e0?, 0x11?}, 0xc000468cb0, {0xc0003b5740, 0x2, 0xc0003b5740?}) runsc/cmd/boot.go:564 +0x3545 github.com/google/subcommands.(*Commander).Execute(0xc000268000, {0x1f7cf90, 0x3af8e60}, {0xc0003b5740, 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