EXT4-fs (loop4): Free/Dirty block details
EXT4-fs (loop4): free_blocks=68451041280
EXT4-fs (loop4): dirty_blocks=2224
EXT4-fs (loop4): Block reservation details
EXT4-fs (loop4): i_reserved_data_blocks=139
------------[ cut here ]------------
WARNING: CPU: 1 PID: 15651 at fs/ext4/ext4_jbd2.c:76 ext4_journal_check_start+0x1f8/0x250 fs/ext4/ext4_jbd2.c:76
Modules linked in:
CPU: 1 UID: 0 PID: 15651 Comm: kworker/u8:18 Not tainted 6.12.0-rc2-syzkaller-00320-gba01565ced22 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: writeback wb_workfn (flush-7:4)
RIP: 0010:ext4_journal_check_start+0x1f8/0x250 fs/ext4/ext4_jbd2.c:76
Code: 5c 41 5d 41 5e 41 5f e9 81 cd 97 09 e8 c1 73 3c ff 41 bf fb ff ff ff eb e2 e8 b4 73 3c ff 90 0f 0b 90 eb d1 e8 a9 73 3c ff 90 <0f> 0b 90 43 80 7c 25 00 00 0f 85 03 ff ff ff e9 06 ff ff ff 89 d9
RSP: 0018:ffffc9000317ec40 EFLAGS: 00010293
RAX: ffffffff825873a7 RBX: 0000000000000004 RCX: ffff888025ec5a00
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004
RBP: 0000000000000001 R08: ffffffff825872a4 R09: 1ffff1100ce7d070
R10: dffffc0000000000 R11: ffffed100ce7d071 R12: dffffc0000000000
R13: 1ffff1100ce7dcc7 R14: ffff8880673ee000 R15: ffff8880673ee638
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020022000 CR3: 0000000051c14000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __ext4_journal_start_sb+0x181/0x600 fs/ext4/ext4_jbd2.c:105
 __ext4_journal_start fs/ext4/ext4_jbd2.h:326 [inline]
 ext4_do_writepages+0x112c/0x3d20 fs/ext4/inode.c:2707
 ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2813
 do_writepages+0x35f/0x870 mm/page-writeback.c:2683
 __writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1658
 writeback_sb_inodes+0x80c/0x1370 fs/fs-writeback.c:1954
 wb_writeback+0x41b/0xbd0 fs/fs-writeback.c:2134
 wb_do_writeback fs/fs-writeback.c:2281 [inline]
 wb_workfn+0x410/0x1090 fs/fs-writeback.c:2321
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>