gfs2: fsid=syz:syz.0: jid=0, already locked for use
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
gfs2: fsid=syz:syz.0: jid=0: Done
gfs2: fsid=syz:syz.0: first mount done, others may mount
------------[ cut here ]------------
WARNING: CPU: 0 PID: 9686 at include/linux/backing-dev.h:335 inode_to_wb include/linux/backing-dev.h:335 [inline]
WARNING: CPU: 0 PID: 9686 at include/linux/backing-dev.h:335 account_page_dirtied+0x8df/0xbb0 mm/page-writeback.c:2437
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 9686 Comm: syz-executor.0 Not tainted 4.14.302-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x44 kernel/panic.c:547
 report_bug+0x208/0x250 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:967
RIP: 0010:inode_to_wb include/linux/backing-dev.h:335 [inline]
RIP: 0010:account_page_dirtied+0x8df/0xbb0 mm/page-writeback.c:2437
RSP: 0018:ffff888045c8f438 EFLAGS: 00010012
RAX: 0000000000040000 RBX: ffff8880aec41540 RCX: ffffc90005cda000
RDX: 00000000000026bb RSI: ffffffff816b4bbf RDI: 0000000000000082
RBP: ffff8880b1d8a9e8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000002 R11: ffff8880a74483c0 R12: ffffea00028a4e80
R13: ffff8880b1d8a858 R14: ffff8880b1d8a858 R15: ffffea00028a4ea0
 __set_page_dirty+0x77/0x2a0 fs/buffer.c:634
 mark_buffer_dirty+0x307/0x480 fs/buffer.c:1173
 gfs2_unpin+0xc7/0xeb0 fs/gfs2/lops.c:107
 buf_lo_after_commit+0x12d/0x1f0 fs/gfs2/lops.c:510
 lops_after_commit fs/gfs2/lops.h:64 [inline]
 gfs2_log_flush+0x7fc/0x1ad0 fs/gfs2/log.c:759
 gfs2_trans_end+0x52b/0x560 fs/gfs2/trans.c:123
 alloc_dinode fs/gfs2/inode.c:397 [inline]
 gfs2_create_inode+0x160f/0x3890 fs/gfs2/inode.c:699
 gfs2_atomic_open+0x93/0x210 fs/gfs2/inode.c:1268
 atomic_open fs/namei.c:3075 [inline]
 lookup_open+0xe0e/0x1750 fs/namei.c:3211
 do_last fs/namei.c:3334 [inline]
 path_openat+0xe08/0x2970 fs/namei.c:3571
 do_filp_open+0x179/0x3c0 fs/namei.c:3605
 do_sys_open+0x296/0x410 fs/open.c:1081
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fe6940ff0a9
RSP: 002b:00007fe692671168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fe69421ef80 RCX: 00007fe6940ff0a9
RDX: 0000000000000000 RSI: 000000000014da42 RDI: 00000000200000c0
RBP: 00007fe69415aae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe6aa19d0f R14: 00007fe692671300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..