David Howells <dhowells@xxxxxxxxxx> wrote: > but this fails on your modified test-fsmount with: > > shell-init: error retrieving current directory: getcwd: cannot access > parent directories: No such file or directory Actually, it doesn't fail at this point, and I do see a splat later in fsnotify_first_mark(). static struct fsnotify_mark *fsnotify_first_mark(struct fsnotify_mark_connector **connp) { struct fsnotify_mark_connector *conn; struct hlist_node *node = NULL; conn = srcu_dereference(*connp, &fsnotify_mark_srcu); conn here is 6b6b6b6b6b6b6b6b. RIP: 0010:fsnotify_first_mark+0x5f/0xbb Call Trace: fsnotify+0x115/0x344 ? __fput+0xac/0x1c1 __fput+0xac/0x1c1 task_work_run+0x78/0x9f do_exit+0x525/0xa05 do_group_exit+0xb2/0xb2 __x64_sys_exit_group+0x14/0x14 do_syscall_64+0x7d/0x1a0 entry_SYSCALL_64_after_hwframe+0x49/0xbe The line in fsnotify is: fsnotify_first_mark(&mnt->mnt_fsnotify_marks); and fsnotify() is called from fsnotify_close(). David