ocfs2: Readonly device (7,3) detected. Cluster services will not be used for this mount. Recovery will be skipped.
ocfs2: Mounting device (7,3) on (node local, slot 65535) with ordered data mode.
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: kernel/locking/mutex.c:625 at __mutex_lock+0x12d8/0x1550, CPU#1: syz.3.903/11078
Modules linked in:
CPU: 1 UID: 0 PID: 11078 Comm: syz.3.903 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__mutex_lock+0x12df/0x1550
Code: 4c 33 90 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 47 02 00 00 83 3d f5 7b 7b 04 00 75 13 48 8d 3d f8 c9 7e 04 48 c7 c6 40 f7 cc 8b <67> 48 0f b9 3a 90 e9 75 ee ff ff 90 0f 0b 90 e9 48 f2 ff ff 90 0f
RSP: 0018:ffffc9000415f780 EFLAGS: 00010246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc900083e9000 RSI: ffffffff8bccf740 RDI: ffffffff90369a10
RBP: ffffc9000415f920 R08: ffffffff90334c03 R09: 1ffffffff2066980
R10: dffffc0000000000 R11: fffffbfff2066981 R12: ffff888114314de0
R13: 0000000000000000 R14: 1ffff9200082bf04 R15: 0000000000000000
FS:  00007f473bbdf6c0(0000) GS:ffff8882a9218000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000008000 CR3: 000000001f0da000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 ocfs2_trim_fs_lock_res_init+0x33/0x1c0
 ocfs2_trim_fs+0x13c/0x24d0
 ocfs2_ioctl+0x6bf/0x7e0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f473ad9ce59
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:00007f473bbdf028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f473b015fa0 RCX: 00007f473ad9ce59
RDX: 0000200000000080 RSI: 00000000c0185879 RDI: 0000000000000007
RBP: 00007f473ae32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f473b016038 R14: 00007f473b015fa0 R15: 00007ffe37650548
 </TASK>
