and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ------------[ cut here ]------------ kernel BUG at fs/ocfs2/buffer_head_io.c:45! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5306 Comm: syz-executor395 Not tainted 6.14.0-rc2-syzkaller-00041-g4dc1d1bec898 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:ocfs2_write_block+0x62a/0x6a0 fs/ocfs2/buffer_head_io.c:45 Code: fc ff df 80 3c 08 00 74 08 4c 89 ef e8 cf 2e 77 fe 49 8b 7d 00 48 89 de 48 8b 54 24 08 e8 9e 41 11 00 eb 24 e8 97 95 10 fe 90 <0f> 0b e8 8f 95 10 fe 90 0f 0b e8 47 1e 47 08 e8 82 95 10 fe e9 73 RSP: 0018:ffffc9000cffeee0 EFLAGS: 00010293 RAX: ffffffff83aeba09 RBX: 0000000000000000 RCX: ffff88801f9e8000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: ffffc9000cffefb0 R08: ffffffff83aeb560 R09: 1ffffffff2036c0e R10: dffffc0000000000 R11: fffffbfff2036c0f R12: ffff888045de62d0 R13: dffffc0000000000 R14: ffff888045de62b8 R15: ffff88803bfec000 FS: 0000555573304380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc370395ed8 CR3: 00000000425b8000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ocfs2_update_disk_slot+0x498/0x690 fs/ocfs2/slot_map.c:197 ocfs2_find_slot+0x4cb/0xa90 fs/ocfs2/slot_map.c:482 ocfs2_mount_volume fs/ocfs2/super.c:1749 [inline] ocfs2_fill_super+0x3d4e/0x7200 fs/ocfs2/super.c:1083 get_tree_bdev_flags+0x48c/0x5c0 fs/super.c:1636 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3560 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f85faaec1ea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcd5b706f8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffcd5b70710 RCX: 00007f85faaec1ea RDX: 0000400000004440 RSI: 0000400000000040 RDI: 00007ffcd5b70710 RBP: 0000400000000040 R08: 00007ffcd5b70750 R09: 0000000000004420 R10: 00000000000008c0 R11: 0000000000000282 R12: 0000400000004440 R13: 00007ffcd5b70750 R14: 0000000000000003 R15: 00000000000008c0 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_write_block+0x62a/0x6a0 fs/ocfs2/buffer_head_io.c:45 Code: fc ff df 80 3c 08 00 74 08 4c 89 ef e8 cf 2e 77 fe 49 8b 7d 00 48 89 de 48 8b 54 24 08 e8 9e 41 11 00 eb 24 e8 97 95 10 fe 90 <0f> 0b e8 8f 95 10 fe 90 0f 0b e8 47 1e 47 08 e8 82 95 10 fe e9 73 RSP: 0018:ffffc9000cffeee0 EFLAGS: 00010293 RAX: ffffffff83aeba09 RBX: 0000000000000000 RCX: ffff88801f9e8000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: ffffc9000cffefb0 R08: ffffffff83aeb560 R09: 1ffffffff2036c0e R10: dffffc0000000000 R11: fffffbfff2036c0f R12: ffff888045de62d0 R13: dffffc0000000000 R14: ffff888045de62b8 R15: ffff88803bfec000 FS: 0000555573304380(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc370395ed8 CR3: 00000000425b8000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400