linux-kernel - Re: [syzbot] [f2fs?] WARNING in rcu_sync

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Message-ID: <0000000000004ff2dc061e281637@google.com>
Date: Fri, 26 Jul 2024 08:23:02 -0700
From: syzbot <syzbot+20d7e439f76bbbd863a7@...kaller.appspotmail.com>
To: brauner@...nel.org, chao@...nel.org, frank.li@...o.com, jack@...e.cz, 
	jaegeuk@...nel.org, linux-f2fs-devel@...ts.sourceforge.net, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com, viro@...iv.linux.org.uk
Subject: Re: [syzbot] [f2fs?] WARNING in rcu_sync_dtor

syzbot has bisected this issue to:

commit b62e71be2110d8b52bf5faf3c3ed7ca1a0c113a5
Author: Chao Yu <chao@...nel.org>
Date:   Sun Apr 23 15:49:15 2023 +0000

    f2fs: support errors=remount-ro|continue|panic mountoption

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=119745f1980000
start commit:   1722389b0d86 Merge tag 'net-6.11-rc1' of git://git.kernel...
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=139745f1980000
console output: https://syzkaller.appspot.com/x/log.txt?x=159745f1980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=b698a1b2fcd7ef5f
dashboard link: https://syzkaller.appspot.com/bug?extid=20d7e439f76bbbd863a7
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1237a1f1980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=115edac9980000

Reported-by: syzbot+20d7e439f76bbbd863a7@...kaller.appspotmail.com
Fixes: b62e71be2110 ("f2fs: support errors=remount-ro|continue|panic mountoption")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection