syzbot

         option from the mount to silence this warning.
=======================================================
ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1159!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6001 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1159 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 fs/ocfs2/aops.c:1219
Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 f5 13 bf 8c ba 6a 04 00 00 48 c7 c1 c0 24 0a 8b e8 38 52 1b 00 90 0f 0b e8 a0 1f 2e fe 90 <0f> 0b e8 98 1f 2e fe 90 0f 0b e8 90 1f 2e fe 90 0f 0b e8 88 1f 2e
RSP: 0018:ffffc90003b3ee60 EFLAGS: 00010293
RAX: ffffffff838ea780 RBX: ffff88803d3d4014 RCX: ffff888032951dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003b3f190 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1d6cd47 R12: ffff888036018000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88803d3d4014
FS:  0000555573006500(0000) GS:ffff888127125000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcf183894c CR3: 000000003a634000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x31a3/0x4340 fs/ocfs2/aops.c:1796
 ocfs2_write_begin+0x1bb/0x310 fs/ocfs2/aops.c:1884
 generic_perform_write+0x29a/0x8c0 mm/filemap.c:4175
 ocfs2_file_write_iter+0x157d/0x1d20 fs/ocfs2/file.c:2469
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x5d5/0xb40 fs/read_write.c:686
 ksys_write+0x14b/0x260 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc58240eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd3159b7b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fc582665fa0 RCX: 00007fc58240eec9
RDX: 0000000000032600 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007fc582491f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc582665fa0 R14: 00007fc582665fa0 R15: 0000000000000003
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1159 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 fs/ocfs2/aops.c:1219
Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 f5 13 bf 8c ba 6a 04 00 00 48 c7 c1 c0 24 0a 8b e8 38 52 1b 00 90 0f 0b e8 a0 1f 2e fe 90 <0f> 0b e8 98 1f 2e fe 90 0f 0b e8 90 1f 2e fe 90 0f 0b e8 88 1f 2e
RSP: 0018:ffffc90003b3ee60 EFLAGS: 00010293
RAX: ffffffff838ea780 RBX: ffff88803d3d4014 RCX: ffff888032951dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003b3f190 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1d6cd47 R12: ffff888036018000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88803d3d4014
FS:  0000555573006500(0000) GS:ffff888127125000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcf183894c CR3: 000000003a634000 CR4: 00000000003526f0