panic: WARNING: circular locking detected: vfs.inotifyEventMutex -> mm.mappingRWMutex: goroutine 77109 [running]: gvisor.dev/gvisor/pkg/sync/locking.(*ancestorsAtomicPtrMap).RangeRepeatable(0xc00028aa40, 0xc005aaeac0) bazel-out/k8-fastbuild/bin/pkg/sync/locking/atomicptrmap_ancestors_unsafe.go:440 +0x1e8 gvisor.dev/gvisor/pkg/sync/locking.checkLock(0xc00028b9e0, 0xc00028aa20, {0x0, 0x0, 0x0}) pkg/sync/locking/lockdep.go:112 +0x48a gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc00028b9e0, 0xffffffffffffffff) pkg/sync/locking/lockdep.go:144 +0x2ec gvisor.dev/gvisor/pkg/sentry/mm.(*mappingRWMutex).RLock(0xc00193405c) bazel-out/k8-fastbuild/bin/pkg/sentry/mm/mapping_mutex.go:59 +0x3c gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc001934008, {0x2112f90, 0xc00271f208}, {0xc002bf7208?, 0xc001b02ed8?}, {0xf4?, 0xb6?, 0x41?}, 0x0, 0xc005aaeed0) pkg/sentry/mm/io.go:545 +0xf4 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyOut(0xc001934008, {0x2112f90, 0xc00271f208}, 0x200000000000, {0xc0060e32e0, 0x10, 0x10}, {0x53?, 0xae?}) pkg/sentry/mm/io.go:130 +0x26a gvisor.dev/gvisor/pkg/usermem.CopyOutVec({0x2112f90, 0xc00271f208}, {0x2108718, 0xc001934008}, {0x0?, 0x2dcbdc0?, 0x12d35?, 0xc00028aa00?}, {0xc0060e32e0, 0x10, ...}, ...) pkg/usermem/usermem.go:264 +0x1db gvisor.dev/gvisor/pkg/usermem.IOSequence.CopyOut(...) pkg/usermem/usermem.go:482 gvisor.dev/gvisor/pkg/sentry/vfs.(*Event).CopyTo(0xc0027a0980, {0x2112f90, 0xc00271f208}, {0xc0060e32e0, 0x10, 0x10}, {{0x2108718, 0xc001934008}, {0x0, 0x1, ...}, ...}) pkg/sentry/vfs/inotify.go:693 +0x590 gvisor.dev/gvisor/pkg/sentry/vfs.(*Inotify).Read(0xc0027cdce0, {0x2112f90, 0xc00271f208}, {{0x2108718, 0xc001934008}, {0x0, 0x1, 0x200000000000, 0x35}, {0x0, ...}}, ...) pkg/sentry/vfs/inotify.go:244 +0x53c gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Read(0xc0027cdce0, {0x2112f90, 0xc00271f208}, {{0x2108718, 0xc001934008}, {0x0, 0x1, 0x200000000000, 0x35}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:653 +0x14f gvisor.dev/gvisor/pkg/sentry/syscalls/linux.read(0xc00271f208, 0xc0027cdce0, {{0x2108718, 0xc001934008}, {0x0, 0x1, 0x200000000000, 0x35}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:93 +0x91 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Read(0xc00271f208, 0xc00127b820?, {{0x6}, {0x200000000000}, {0x35}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_read_write.go:62 +0x2b2 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00271f208, 0x0, {{0x6}, {0x200000000000}, {0x35}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x94c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00271f208, 0x0, {{0x6}, {0x200000000000}, {0x35}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00271f208, 0x0, {{0x6}, {0x200000000000}, {0x35}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00271f208) pkg/sentry/kernel/task_syscall.go:258 +0x490 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00271f208?, 0xc00271f208) pkg/sentry/kernel/task_run.go:269 +0x1ec9 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00271f208, 0x56db) pkg/sentry/kernel/task_run.go:97 +0x4ca created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 77079 pkg/sentry/kernel/task_start.go:416 +0x15c known lock chain: mm.mappingRWMutex -> kernel.fsContextMutex -> vfs.inotifyEventMutex ====== mm.mappingRWMutex -> kernel.fsContextMutex ===== goroutine 25153 [running]: gvisor.dev/gvisor/pkg/sentry/kernel.(*fsContextMutex).Lock(0xc0075fa748) bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/fs_context_mutex.go:33 +0x3c gvisor.dev/gvisor/pkg/sentry/kernel.(*FSContext).RootDirectory(0xc0075fa740) pkg/sentry/kernel/fs_context.go:150 +0x4a gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).contextValue(0xc0076d4c88, {0x1c123e0, 0x20e1978}, 0x1) pkg/sentry/kernel/task_context.go:99 +0x5d8 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Value(0xc0076d4c88, {0x1c123e0, 0x20e1978}) pkg/sentry/kernel/task_context.go:61 +0x4a gvisor.dev/gvisor/pkg/sentry/vfs.RootFromContext(...) pkg/sentry/vfs/context.go:88 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).MappedName(0xc0007fa580, {0x2112f90, 0xc0076d4c88}) pkg/sentry/vfs/file_description.go:818 +0x77 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).appendVMAMapsEntryLocked(0xc00788a05c?, {0x2112f90, 0xc0076d4c88}, {0xc006de0d08?, 0xc0028aaf90?}, 0xc0007cb048) pkg/sentry/mm/procfs.go:129 +0x2a2 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).ReadMapsDataInto(0xc00788a008, {0x2112f90, 0xc0076d4c88}, 0xc0007cb048) pkg/sentry/mm/procfs.go:85 +0x185 gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*mapsData).Generate(0xc0077cc008, {0x2112f90, 0xc0076d4c88}, 0xc006ee57c0) pkg/sentry/fsimpl/proc/task_files.go:651 +0xa9 gvisor.dev/gvisor/pkg/sentry/vfs.(*DynamicBytesFileDescriptionImpl).preadLocked(0xc006ee57a0, {0x2112f90, 0xc0076d4c88}, {{0x2108718, 0xc00788a008}, {0x0, 0x1, 0x200000002200, 0x2020}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description_impl_util.go:310 +0x18b gvisor.dev/gvisor/pkg/sentry/vfs.(*DynamicBytesFileDescriptionImpl).Read(0xc006ee57a0, {0x2112f90, 0xc0076d4c88}, {{0x2108718, 0xc00788a008}, {0x0, 0x1, 0x200000002200, 0x2020}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description_impl_util.go:337 +0x117 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*DynamicBytesFD).Read(0xc006ee57a0, {0x2112f90, 0xc0076d4c88}, {{0x2108718, 0xc00788a008}, {0x0, 0x1, 0x200000002200, 0x2020}, {0x0, ...}}, ...) pkg/sentry/fsimpl/kernfs/dynamic_bytes_file.go:128 +0x91 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Read(0xc006ee5800, {0x2112f90, 0xc0076d4c88}, {{0x2108718, 0xc00788a008}, {0x0, 0x1, 0x200000002200, 0x2020}, {0x0, ...}}, ...) pkg/sentry/vfs/file_description.go:653 +0x14f gvisor.dev/gvisor/pkg/sentry/syscalls/linux.read(0xc0076d4c88, 0xc006ee5800, {{0x2108718, 0xc00788a008}, {0x0, 0x1, 0x200000002200, 0x2020}, {0x0, 0x1}}, ...) pkg/sentry/syscalls/linux/sys_read_write.go:93 +0x91 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Read(0xc0076d4c88, 0xc0076f68b0?, {{0x4}, {0x200000002200}, {0x2020}, {0x0}, {0x0}, {0x0}}) pkg/sentry/syscalls/linux/sys_read_write.go:62 +0x2b2 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0076d4c88, 0x0, {{0x4}, {0x200000002200}, {0x2020}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:143 +0x94c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0076d4c88, 0x0, {{0x4}, {0x200000002200}, {0x2020}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:323 +0x72 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0076d4c88, 0x0, {{0x4}, {0x200000002200}, {0x2020}, {0x0}, {0x0}, {0x0}}) pkg/sentry/kernel/task_syscall.go:283 +0x94 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0076d4c88) pkg/sentry/kernel/task_syscall.go:258 +0x490 gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0076d4c88?, 0xc0076d4c88) pkg/sentry/kernel/task_run.go:269 +0x1ec9 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0076d4c88, 0x1ca2) pkg/sentry/kernel/task_run.go:97 +0x4ca created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 25152 pkg/sentry/kernel/task_start.go:416 +0x15c ====== kernel.fsContextMutex -> vfs.inotifyEventMutex ===== goroutine 70902 [running]: gvisor.dev/gvisor/pkg/sentry/vfs.(*inotifyEventMutex).Lock(0xc0006a4178) bazel-out/k8-fastbuild/bin/pkg/sentry/vfs/inotify_event_mutex.go:33 +0x3c gvisor.dev/gvisor/pkg/sentry/vfs.(*Inotify).queueEvent(0xc0006a40e0, 0xc0030f97c0) pkg/sentry/vfs/inotify.go:276 +0x46 gvisor.dev/gvisor/pkg/sentry/vfs.(*Watch).Notify(0xc005eb4000, {0x0, 0x0}, 0x400, 0x0) pkg/sentry/vfs/inotify.go:604 +0x287 gvisor.dev/gvisor/pkg/sentry/vfs.(*Watches).Notify(0xc005bb17a0, {0x2112f90, 0xc005cad208}, {0x0, 0x0}, 0x400, 0x0, 0x1, 0x1) pkg/sentry/vfs/inotify.go:476 +0x1b8 gvisor.dev/gvisor/pkg/sentry/vfs.(*Watches).HandleDeletion(0xc005bb17a0, {0x2112f90, 0xc005cad208}) pkg/sentry/vfs/inotify.go:510 +0x75 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*dentry).DecRef.(*inode).decRef.func1() pkg/sentry/fsimpl/tmpfs/tmpfs.go:605 +0x53 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeRefs).DecRef(0xc005bb1460, 0xc000aa9b30) bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_refs.go:133 +0x6d gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).decRef(...) pkg/sentry/fsimpl/tmpfs/tmpfs.go:604 gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*dentry).DecRef(0xc005bb1408, {0x2112f90, 0xc005cad208}) pkg/sentry/fsimpl/tmpfs/tmpfs.go:464 +0xb2 gvisor.dev/gvisor/pkg/sentry/vfs.(*Dentry).DecRef(...) pkg/sentry/vfs/dentry.go:156 gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc001140bb0?, 0xc005bb1408?}, {0x2112f90, 0xc005cad208}) pkg/sentry/vfs/vfs.go:1114 +0x6b gvisor.dev/gvisor/pkg/sentry/kernel.(*FSContext).destroy(0xc0060cc880, {0x2112f90, 0xc005cad208}) pkg/sentry/kernel/fs_context.go:73 +0x153 gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute.(*FSContext).DecRef.func2() pkg/sentry/kernel/fs_context.go:87 +0x47 gvisor.dev/gvisor/pkg/sentry/kernel.(*FSContextRefs).DecRef(0xc0060cc880, 0xc000aa9da0) bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/fs_context_refs.go:133 +0x6d gvisor.dev/gvisor/pkg/sentry/kernel.(*FSContext).DecRef(...) pkg/sentry/kernel/fs_context.go:86 gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0xc005cad208?, 0xc005cad208) pkg/sentry/kernel/task_exit.go:301 +0x82b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc005cad208, 0x4fd7) pkg/sentry/kernel/task_run.go:97 +0x4ca created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 70883 pkg/sentry/kernel/task_start.go:416 +0x15c