ocfs2: Mounting device (7,1) on (node local, slot 0) with ordered data mode. ocfs2: Unknown parameter 'utf8' ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.1.958/13922 is trying to acquire lock: ffff8880685bbdc0 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1029 [inline] ffff8880685bbdc0 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_xattr_free_block fs/ocfs2/xattr.c:2556 [inline] ffff8880685bbdc0 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_xattr_remove+0x94e/0x1650 fs/ocfs2/xattr.c:2631 but task is already holding lock: ffff8880685bdf40 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1029 [inline] ffff8880685bdf40 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_wipe_inode fs/ocfs2/inode.c:854 [inline] ffff8880685bdf40 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_delete_inode fs/ocfs2/inode.c:1157 [inline] ffff8880685bdf40 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_evict_inode+0xe97/0x4390 fs/ocfs2/inode.c:1299 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}: down_write+0x3a/0x50 kernel/locking/rwsem.c:1625 inode_lock include/linux/fs.h:1029 [inline] ocfs2_del_inode_from_orphan+0x12e/0x7a0 fs/ocfs2/namei.c:2728 ocfs2_dio_end_io_write fs/ocfs2/aops.c:2379 [inline] ocfs2_dio_end_io+0xf9e/0x1370 fs/ocfs2/aops.c:2418 dio_complete+0x25e/0x790 fs/direct-io.c:281 __blockdev_direct_IO+0x2e12/0x3470 fs/direct-io.c:1303 ocfs2_direct_IO+0x253/0x2c0 fs/ocfs2/aops.c:2455 generic_file_direct_write+0x1dc/0x3e0 mm/filemap.c:4259 __generic_file_write_iter+0x120/0x240 mm/filemap.c:4428 ocfs2_file_write_iter+0x1666/0x1e70 fs/ocfs2/file.c:2476 do_iter_readv_writev+0x62b/0x8d0 fs/read_write.c:-1 vfs_writev+0x345/0x9a0 fs/read_write.c:1059 do_pwritev fs/read_write.c:1155 [inline] __do_sys_pwritev2 fs/read_write.c:1213 [inline] __se_sys_pwritev2+0x187/0x2b0 fs/read_write.c:1204 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x15a5/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 down_write+0x3a/0x50 kernel/locking/rwsem.c:1625 inode_lock include/linux/fs.h:1029 [inline] ocfs2_xattr_free_block fs/ocfs2/xattr.c:2556 [inline] ocfs2_xattr_remove+0x94e/0x1650 fs/ocfs2/xattr.c:2631 ocfs2_wipe_inode fs/ocfs2/inode.c:884 [inline] ocfs2_delete_inode fs/ocfs2/inode.c:1157 [inline] ocfs2_evict_inode+0x140b/0x4390 fs/ocfs2/inode.c:1299 evict+0x61e/0xb10 fs/inode.c:841 ocfs2_dentry_iput+0x24d/0x390 fs/ocfs2/dcache.c:407 __dentry_kill+0x1a2/0x690 fs/dcache.c:718 finish_dput+0xc9/0x480 fs/dcache.c:927 end_renaming fs/namei.c:4124 [inline] filename_renameat2+0x61e/0x9c0 fs/namei.c:6174 __do_sys_rename fs/namei.c:6216 [inline] __se_sys_rename+0x55/0x2c0 fs/namei.c:6212 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]); lock(&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]); lock(&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]); lock(&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]); *** DEADLOCK *** 3 locks held by syz.1.958/13922: #0: ffff888038c94480 (sb_writers#17){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:493 #1: ffff888037a70e30 (&osb->nfs_sync_rwlock){.+.+}-{4:4}, at: ocfs2_nfs_sync_lock+0x106/0x270 fs/ocfs2/dlmglue.c:2875 #2: ffff8880685bdf40 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1029 [inline] #2: ffff8880685bdf40 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_wipe_inode fs/ocfs2/inode.c:854 [inline] #2: ffff8880685bdf40 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_delete_inode fs/ocfs2/inode.c:1157 [inline] #2: ffff8880685bdf40 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_evict_inode+0xe97/0x4390 fs/ocfs2/inode.c:1299 stack backtrace: CPU: 1 UID: 0 PID: 13922 Comm: syz.1.958 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2043 check_noncircular+0x12e/0x150 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x15a5/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 down_write+0x3a/0x50 kernel/locking/rwsem.c:1625 inode_lock include/linux/fs.h:1029 [inline] ocfs2_xattr_free_block fs/ocfs2/xattr.c:2556 [inline] ocfs2_xattr_remove+0x94e/0x1650 fs/ocfs2/xattr.c:2631 ocfs2_wipe_inode fs/ocfs2/inode.c:884 [inline] ocfs2_delete_inode fs/ocfs2/inode.c:1157 [inline] ocfs2_evict_inode+0x140b/0x4390 fs/ocfs2/inode.c:1299 evict+0x61e/0xb10 fs/inode.c:841 ocfs2_dentry_iput+0x24d/0x390 fs/ocfs2/dcache.c:407 __dentry_kill+0x1a2/0x690 fs/dcache.c:718 finish_dput+0xc9/0x480 fs/dcache.c:927 end_renaming fs/namei.c:4124 [inline] filename_renameat2+0x61e/0x9c0 fs/namei.c:6174 __do_sys_rename fs/namei.c:6216 [inline] __se_sys_rename+0x55/0x2c0 fs/namei.c:6212 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f298d18cdd9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f298b3de028 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f298d405fa0 RCX: 00007f298d18cdd9 RDX: 0000000000000000 RSI: 0000200000000180 RDI: 00002000000002c0 RBP: 00007f298d222d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f298d406038 R14: 00007f298d405fa0 R15: 00007ffe8418cc18 syz.1.958 (13922) used greatest stack depth: 17824 bytes left