gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6333 at include/linux/backing-dev.h:256 inode_to_wb include/linux/backing-dev.h:252 [inline]
WARNING: CPU: 0 PID: 6333 at include/linux/backing-dev.h:256 folio_account_dirtied mm/page-writeback.c:2640 [inline]
WARNING: CPU: 0 PID: 6333 at include/linux/backing-dev.h:256 __folio_mark_dirty+0x912/0x1110 mm/page-writeback.c:2691
Modules linked in:
CPU: 0 PID: 6333 Comm: syz.1.111 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:inode_to_wb include/linux/backing-dev.h:252 [inline]
RIP: 0010:folio_account_dirtied mm/page-writeback.c:2640 [inline]
RIP: 0010:__folio_mark_dirty+0x912/0x1110 mm/page-writeback.c:2691
Code: e9 92 f8 ff ff e8 8e 1d cf ff 0f 0b e9 d9 f8 ff ff e8 82 1d cf ff 48 89 df 48 8b 74 24 28 e8 e5 c4 2d 00 eb a6 e8 6e 1d cf ff <0f> 0b e9 84 fb ff ff 89 c2 80 e2 07 80 c2 03 38 ca 0f 8c f2 f8 ff
RSP: 0018:ffffc9000bf8f2a0 EFLAGS: 00010087
RAX: ffffffff81b671f2 RBX: ffffea000069ae00 RCX: 0000000000080000
RDX: ffffc9000d20b000 RSI: 0000000000027f40 RDI: 0000000000027f41
RBP: 0000000000000001 R08: ffffea000069ae07 R09: 1ffffd40000d35c0
R10: dffffc0000000000 R11: fffff940000d35c1 R12: 1ffff11003fa1b11
R13: ffff88801fd0d710 R14: 0000000000000000 R15: ffff88801fd0d888
FS:  00007f1a2bcfb6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f075498df98 CR3: 000000005ea62000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 mark_buffer_dirty+0x26e/0x4d0 fs/buffer.c:1212
 gfs2_unpin+0x125/0x9a0 fs/gfs2/lops.c:111
 buf_lo_after_commit+0x15e/0x1b0 fs/gfs2/lops.c:745
 lops_after_commit fs/gfs2/lops.h:51 [inline]
 gfs2_log_flush+0x1094/0x24b0 fs/gfs2/log.c:1117
 gfs2_trans_end+0x37b/0x570 fs/gfs2/trans.c:158
 alloc_dinode+0x434/0x580 fs/gfs2/inode.c:432
 gfs2_create_inode+0xcb4/0x1430 fs/gfs2/inode.c:739
 gfs2_atomic_open+0xd2/0x220 fs/gfs2/inode.c:1315
 atomic_open fs/namei.c:3359 [inline]
 lookup_open fs/namei.c:3467 [inline]
 open_last_lookups fs/namei.c:3564 [inline]
 path_openat+0xf27/0x3190 fs/namei.c:3794
 do_filp_open+0x1c5/0x3d0 fs/namei.c:3824
 do_sys_openat2+0x12c/0x1c0 fs/open.c:1419
 do_sys_open fs/open.c:1434 [inline]
 __do_sys_openat fs/open.c:1450 [inline]
 __se_sys_openat fs/open.c:1445 [inline]
 __x64_sys_openat+0x139/0x160 fs/open.c:1445
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f1a2ad8efc9
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:00007f1a2bcfb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f1a2afe5fa0 RCX: 00007f1a2ad8efc9
RDX: 0000000000181242 RSI: 0000200000000180 RDI: ffffffffffffff9c
RBP: 00007f1a2ae11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000148 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1a2afe6038 R14: 00007f1a2afe5fa0 R15: 00007ffc5c3d3688
 </TASK>