linux-kernel - Re: [syzbot] [ocfs2?] [ext4?] WARNING in jbd2_journal_update_sb_log

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Message-ID: <67870eac.050a0220.296bc1.0002.GAE@google.com>
Date: Tue, 14 Jan 2025 17:26:04 -0800
From: syzbot <syzbot+96ee12698391289383dd@...kaller.appspotmail.com>
To: heming.zhao@...e.com, linux-kernel@...r.kernel.org, 
	ocfs2-devel@...ts.linux.dev, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [ocfs2?] [ext4?] WARNING in jbd2_journal_update_sb_log_tail

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
WARNING in jbd2_journal_update_sb_log_tail

------------[ cut here ]------------
WARNING: CPU: 0 PID: 6052 at fs/jbd2/journal.c:1882 jbd2_journal_update_sb_log_tail+0x2ba/0x360 fs/jbd2/journal.c:1882
Modules linked in:
CPU: 0 UID: 0 PID: 6052 Comm: jbd2/loop0-29 Not tainted 6.13.0-rc7-syzkaller-00041-g7f5b6a8ec18e-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:jbd2_journal_update_sb_log_tail+0x2ba/0x360 fs/jbd2/journal.c:1882
Code: 30 ff 41 80 3c 2c 00 74 08 4c 89 ff e8 df 48 94 ff 41 80 27 f7 4c 89 f7 e8 83 10 4a 09 31 ed e9 72 fe ff ff e8 57 6a 30 ff 90 <0f> 0b 90 41 80 3c 2c 00 75 d5 eb db 44 89 f1 80 e1 07 80 c1 03 38
RSP: 0018:ffffc900037577f0 EFLAGS: 00010293
RAX: ffffffff826f07c9 RBX: 0000000000000000 RCX: ffff88801c7c0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff826f0799 R09: fffff520006eaeec
R10: dffffc0000000000 R11: fffff520006eaeec R12: 1ffff110060f7000
R13: ffff88802b13001c R14: ffff8880307b80b0 R15: ffff8880307b8000
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555563a325c8 CR3: 0000000031c10000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jbd2_journal_commit_transaction+0x46a/0x6560 fs/jbd2/commit.c:397
 kjournald2+0x41c/0x7b0 fs/jbd2/journal.c:201
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>


Tested on:

commit:         7f5b6a8e Merge tag 'pci-v6.13-fixes-3' of git://git.ke..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=169e07c4580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=954e5731cdb4e750
dashboard link: https://syzkaller.appspot.com/bug?extid=96ee12698391289383dd
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=155681f8580000