gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
WARNING: CPU: 1 PID: 12245 at include/linux/backing-dev.h:256 inode_to_wb include/linux/backing-dev.h:252 [inline]
WARNING: CPU: 1 PID: 12245 at include/linux/backing-dev.h:256 folio_account_dirtied mm/page-writeback.c:2640 [inline]
WARNING: CPU: 1 PID: 12245 at include/linux/backing-dev.h:256 __folio_mark_dirty+0x908/0x10f0 mm/page-writeback.c:2691
Modules linked in:
CPU: 1 PID: 12245 Comm: syz.1.2128 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
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+0x908/0x10f0 mm/page-writeback.c:2691
Code: e9 9c f8 ff ff e8 28 8d ce ff 0f 0b e9 e3 f8 ff ff e8 1c 8d ce ff 48 89 df 48 8b 74 24 28 e8 cf 34 2e 00 eb a6 e8 08 8d ce ff <0f> 0b e9 8e fb ff ff 89 c2 80 e2 07 80 c2 03 38 ca 0f 8c fc f8 ff
RSP: 0018:ffffc90004b2f268 EFLAGS: 00010083
RAX: ffffffff81b89e88 RBX: ffffea0001a860c0 RCX: 0000000000080000
RDX: ffffc9000cd19000 RSI: 000000000003677e RDI: 000000000003677f
RBP: 0000000000000001 R08: ffffea0001a860c7 R09: 1ffffd4000350c18
R10: dffffc0000000000 R11: fffff94000350c19 R12: 1ffff1100401b9db
R13: ffff8880200dcd60 R14: 0000000000000000 R15: ffff8880200dced8
FS:  00007fa1a39f66c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd803de8158 CR3: 00000000673ff000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 mark_buffer_dirty+0x26e/0x4c0 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+0x10f1/0x2500 fs/gfs2/log.c:1118
 gfs2_log_flush+0x34/0x50 fs/gfs2/log.c:1180
 gfs2_trans_end+0x37b/0x570 fs/gfs2/trans.c:158
 alloc_dinode+0x482/0x5d0 fs/gfs2/inode.c:432
 gfs2_create_inode+0xdb6/0x1530 fs/gfs2/inode.c:739
 gfs2_atomic_open+0xd2/0x220 fs/gfs2/inode.c:1314
 atomic_open fs/namei.c:3359 [inline]
 lookup_open fs/namei.c:3467 [inline]
 open_last_lookups fs/namei.c:3564 [inline]
 path_openat+0xf49/0x3230 fs/namei.c:3794
 do_filp_open+0x1f5/0x430 fs/namei.c:3824
 do_sys_openat2+0x134/0x1d0 fs/open.c:1421
 do_sys_open fs/open.c:1436 [inline]
 __do_sys_openat fs/open.c:1452 [inline]
 __se_sys_openat fs/open.c:1447 [inline]
 __x64_sys_openat+0x139/0x160 fs/open.c:1447
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa1a579ce59
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:00007fa1a39f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fa1a5a15fa0 RCX: 00007fa1a579ce59
RDX: 000000000000275a RSI: 00002000000001c0 RDI: ffffffffffffff9c
RBP: 00007fa1a5832d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa1a5a16038 R14: 00007fa1a5a15fa0 R15: 00007fffa4aa3158
 </TASK>