ocfs2: Readonly device (7,5) detected. Cluster services will not be used for this mount. Recovery will be skipped.
ocfs2: Mounting device (7,5) on (node local, slot 65535) with ordered data mode.
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 9899 Comm: syz.5.783 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984
 register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1299
 __lock_acquire+0xab/0x2ce0 kernel/locking/lockdep.c:5112
 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
 __mutex_lock_common kernel/locking/rtmutex_api.c:559 [inline]
 mutex_lock_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:578
 ocfs2_trim_fs_lock_res_init+0x25/0xa0 fs/ocfs2/dlmglue.c:703
 ocfs2_trim_fs+0x13c/0x24d0 fs/ocfs2/alloc.c:7692
 ocfs2_ioctl+0x6c2/0x7e0 fs/ocfs2/ioctl.c:948
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xff/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f77a769de99
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:00007f77a58f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f77a7925fa0 RCX: 00007f77a769de99
RDX: 0000200000000080 RSI: 00000000c0185879 RDI: 0000000000000004
RBP: 00007f77a7733eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f77a7926038 R14: 00007f77a7925fa0 R15: 00007ffe676ab5d8
 </TASK>
(syz.5.783,9899,1):ocfs2_trim_fs:7699 ERROR: status = -30