------------[ cut here ]------------
sb->s_writers.frozen == SB_FREEZE_COMPLETE
WARNING: fs/ext4/ext4_jbd2.c:78 at ext4_journal_check_start+0x25a/0x2b0 fs/ext4/ext4_jbd2.c:78, CPU#1: syz.2.636/10690
Modules linked in:
CPU: 1 UID: 0 PID: 10690 Comm: syz.2.636 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:ext4_journal_check_start+0x25a/0x2b0 fs/ext4/ext4_jbd2.c:78
Code: cc cc cc cc cc e8 a6 7d 4f ff 41 bf fb ff ff ff eb e0 e8 99 7d 4f ff eb d3 e8 92 7d 4f ff 90 0f 0b 90 eb c8 e8 87 7d 4f ff 90 <0f> 0b 90 43 80 7c 25 00 00 0f 85 fb fe ff ff e9 fe fe ff ff 44 89
RSP: 0018:ffffc9000e60f428 EFLAGS: 00010283
RAX: ffffffff827508e9 RBX: ffff8880651ae000 RCX: 0000000000080000
RDX: ffffc9001ced2000 RSI: 00000000000006df RDI: 00000000000006e0
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100742c881 R12: dffffc0000000000
R13: 1ffff1100ca35cf3 R14: ffff8880651ae798 R15: ffff8880651ae318
FS:  00007fa8049b46c0(0000) GS:ffff888126435000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b34617ff8 CR3: 000000003abfa000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __ext4_journal_start_sb+0x147/0x620 fs/ext4/ext4_jbd2.c:107
 __ext4_journal_start fs/ext4/ext4_jbd2.h:242 [inline]
 ext4_acquire_dquot+0x2c6/0x4c0 fs/ext4/super.c:7018
 dqget+0x7b6/0xf10 fs/quota/dquot.c:980
 __dquot_initialize+0x3ba/0xd30 fs/quota/dquot.c:1508
 ext4_file_open+0x542/0xa90 fs/ext4/file.c:922
 do_dentry_open+0x83d/0x13e0 fs/open.c:949
 vfs_open+0x3b/0x350 fs/open.c:1081
 do_open fs/namei.c:4677 [inline]
 path_openat+0x2e43/0x38a0 fs/namei.c:4836
 do_file_open+0x23e/0x4a0 fs/namei.c:4865
 do_sys_openat2+0x113/0x200 fs/open.c:1366
 do_sys_open fs/open.c:1372 [inline]
 __do_sys_openat fs/open.c:1388 [inline]
 __se_sys_openat fs/open.c:1383 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1383
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa80679c819
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:00007fa8049b4028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fa806a16180 RCX: 00007fa80679c819
RDX: 0000000000183042 RSI: 0000200000000740 RDI: ffffffffffffff9c
RBP: 00007fa806832c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000015 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa806a16218 R14: 00007fa806a16180 R15: 00007ffd5ad8e668
 </TASK>