linux-kernel - Re: [syzbot] [mm?] WARNING in move_to_new

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Message-ID: <cbbffb90-c342-4738-b7cd-76db8fd44556@amd.com>
Date: Tue, 15 Apr 2025 10:27:04 +0530
From: Shivank Garg <shivankg@....com>
To: syzbot <syzbot+8bb6fd945af4e0ad9299@...kaller.appspotmail.com>,
 akpm@...ux-foundation.org, brauner@...nel.org,
 jfs-discussion@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
 linux-mm@...ck.org, shaggy@...nel.org, syzkaller-bugs@...glegroups.com,
 willy@...radead.org
Subject: Re: [syzbot] [mm?] WARNING in move_to_new_folio


#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 01c6df60d5d4

Best Regards,
Shivank

On 4/14/2025 3:14 AM, syzbot wrote:
> syzbot has bisected this issue to:
> 
> commit 7ee3647243e5c4a9d74d4c7ec621eac75c6d37ea
> Author: Matthew Wilcox (Oracle) <willy@...radead.org>
> Date:   Wed Apr 2 14:59:57 2025 +0000
> 
>     migrate: Remove call to ->writepage
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15be8fe4580000
> start commit:   01c6df60d5d4 Add linux-next specific files for 20250411
> git tree:       linux-next
> final oops:     https://syzkaller.appspot.com/x/report.txt?x=17be8fe4580000
> console output: https://syzkaller.appspot.com/x/log.txt?x=13be8fe4580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=db03cefa26ecf825
> dashboard link: https://syzkaller.appspot.com/bug?extid=8bb6fd945af4e0ad9299
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10afca3f980000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=116f5c04580000
> 
> Reported-by: syzbot+8bb6fd945af4e0ad9299@...kaller.appspotmail.com
> Fixes: 7ee3647243e5 ("migrate: Remove call to ->writepage")
> 
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

View attachment "0001-jfs-implement-migrate_folio-for-jfs_metapage_aops.patch" of type "text/plain" (6141 bytes)