panic: nested locking: kernfs.filesystemRWMutex: goroutine 394229 [running]: gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*filesystemRWMutex).Lock(0xc0040b76d0) bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/fsimpl/kernfs/filesystem_mutex.go:31 +0x58 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).Release(0xc0040b7680, {0x787820, 0xc0092c9500}) pkg/sentry/fsimpl/kernfs/filesystem.go:262 +0x9b gvisor.dev/gvisor/pkg/sentry/fsimpl/mqfs.(*filesystem).Release(0xc0040b7680, {0x787820, 0xc0092c9500}) pkg/sentry/fsimpl/mqfs/mqfs.go:83 +0xc5 gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef.func1() pkg/sentry/vfs/filesystem.go:81 +0x11a gvisor.dev/gvisor/pkg/sentry/vfs.(*FilesystemRefs).DecRef(0xc0040b7680, 0xc000b0d560) bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/vfs/filesystem_refs.go:132 +0xb2 gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef(0xc0040b7680, {0x787820, 0xc0092c9500}) pkg/sentry/vfs/filesystem.go:77 +0x87 gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0xc001af4b00, {0x787820, 0xc0092c9500}) pkg/sentry/vfs/mount.go:690 +0x1e5 gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0xc001af4b00, {0x787820, 0xc0092c9500}) pkg/sentry/vfs/mount.go:674 +0xcc gvisor.dev/gvisor/pkg/sentry/fsimpl/mqfs.(*RegistryImpl).Destroy(0xc003dc7920, {0x787820, 0xc0092c9500}) pkg/sentry/fsimpl/mqfs/registry.go:137 +0x91 gvisor.dev/gvisor/pkg/sentry/kernel/mq.(*Registry).Destroy(0xc000fa52e0, {0x787820, 0xc0092c9500}) pkg/sentry/kernel/mq/mq.go:246 +0xe2 gvisor.dev/gvisor/pkg/sentry/kernel.(*IPCNamespace).Destroy(0xc001f31470, {0x787820, 0xc0092c9500}) pkg/sentry/kernel/ipc_namespace.go:73 +0xc7 gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef.func1() pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x8b gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*inodeRefs).DecRef(0xc00076cae0, 0xc000b0d7a0) bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/fsimpl/nsfs/inode_refs.go:132 +0xb2 gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef(0xc00076ca80, {0x787820, 0xc0092c9500}) pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x8b gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Dentry).destroy(0xc000e079e0, {0x787820, 0xc0092c9500}) pkg/sentry/fsimpl/kernfs/kernfs.go:447 +0xd8 gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Dentry).cacheLocked(0xc000e079e0, {0x787820, 0xc0092c9500}) pkg/sentry/fsimpl/kernfs/kernfs.go:360 +0x7ed gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Dentry).DecRef(0xc000e079e0, {0x787820, 0xc0092c9500}) pkg/sentry/fsimpl/kernfs/kernfs.go:296 +0x1a6 gvisor.dev/gvisor/pkg/sentry/vfs.(*Dentry).DecRef(0xc000e079e0, {0x787820, 0xc0092c9500}) pkg/sentry/vfs/dentry.go:156 +0x71 gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc00054c300?, 0xc000e079e0?}, {0x787820, 0xc0092c9500}) pkg/sentry/vfs/vfs.go:1014 +0x6a gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef.func1() pkg/sentry/vfs/file_description.go:201 +0x4f0 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescriptionRefs).DecRef(0xc002385f88, 0xc000b0db20) bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/vfs/file_description_refs.go:132 +0xb2 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef(0xc002385f88, {0x787820, 0xc0092c9500}) pkg/sentry/vfs/file_description.go:161 +0x87 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).drop(0xc006ae0690?, {0x787820, 0xc0092c9500}, 0x14bb6f3?) pkg/sentry/kernel/fd_table.go:137 +0x119 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).RemoveIf(0xc006ae0680, {0x787820, 0xc0092c9500}, 0x581a88) pkg/sentry/kernel/fd_table.go:502 +0x174 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).DecRef.func1() pkg/sentry/kernel/fd_table.go:152 +0x65 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTableRefs).DecRef(0xc006ae0680, 0xc000b0dd18) bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/kernel/fd_table_refs.go:132 +0xb2 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).DecRef(0xc006ae0680, {0x787820, 0xc0092c9500}) pkg/sentry/kernel/fd_table.go:151 +0x87 gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0xc0092c9500, 0xc0092c9500) pkg/sentry/kernel/task_exit.go:281 +0x7e9 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0092c9500, 0x1d87) pkg/sentry/kernel/task_run.go:98 +0x35b created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:390 +0x1da