syzbot

------------[ cut here ]------------
WARNING: CPU: 1 PID: 5071 at include/linux/backing-dev.h:254 inode_to_wb include/linux/backing-dev.h:251 [inline]
WARNING: CPU: 1 PID: 5071 at include/linux/backing-dev.h:254 folio_account_dirtied mm/page-writeback.c:2672 [inline]
WARNING: CPU: 1 PID: 5071 at include/linux/backing-dev.h:254 __folio_mark_dirty+0x92d/0x10f0 mm/page-writeback.c:2723
Modules linked in:
CPU: 1 PID: 5071 Comm: syz-executor386 Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:inode_to_wb include/linux/backing-dev.h:251 [inline]
RIP: 0010:folio_account_dirtied mm/page-writeback.c:2672 [inline]
RIP: 0010:__folio_mark_dirty+0x92d/0x10f0 mm/page-writeback.c:2723
Code: 8b e8 a7 8f 89 ff 90 0f 0b 90 90 e9 ce f8 ff ff e8 08 13 c7 ff 4c 89 f7 48 8b 74 24 20 e8 3b 61 30 00 eb 86 e8 f4 12 c7 ff 90 <0f> 0b 90 e9 1a fb ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c e1 f8
RSP: 0018:ffffc900037ff888 EFLAGS: 00010093
RAX: ffffffff81ceed7c RBX: 0000000000000000 RCX: ffff88801c3cbc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88801d48cd00 R08: ffffffff81cee892 R09: 1ffff11003a919a0
R10: dffffc0000000000 R11: ffffed1003a919a1 R12: 0000000000000001
R13: ffff88801d48cb88 R14: ffffea0001ea0940 R15: 1ffff11003a919a0
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb059efa130 CR3: 000000007cb74000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 mark_buffer_dirty+0x2a4/0x520 fs/buffer.c:1200
 gfs2_unpin+0x129/0xa60 fs/gfs2/lops.c:111
 buf_lo_after_commit+0x14f/0x1a0 fs/gfs2/lops.c:738
 lops_after_commit fs/gfs2/lops.h:51 [inline]
 gfs2_log_flush+0x117d/0x2600 fs/gfs2/log.c:1122
 gfs2_kill_sb+0x5b/0x330 fs/gfs2/ops_fstype.c:1786
 deactivate_locked_super+0xc4/0x130 fs/super.c:472
 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267
 task_work_run+0x24f/0x310 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xa1b/0x27e0 kernel/exit.c:878
 do_group_exit+0x207/0x2c0 kernel/exit.c:1027
 __do_sys_exit_group kernel/exit.c:1038 [inline]
 __se_sys_exit_group kernel/exit.c:1036 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb059e6e749
Code: Unable to access opcode bytes at 0x7fb059e6e71f.
RSP: 002b:00007ffe044da998 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fb059e6e749
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007fb059efc2b0 R08: ffffffffffffffb8 R09: 00007ffe044daa70
R10: 00007ffe044da8c0 R11: 0000000000000246 R12: 00007fb059efc2b0
R13: 0000000000000000 R14: 00007fb059efd020 R15: 00007fb059e3cc90
 </TASK>