linux-kernel - Re: [syzbot] [btrfs?] kernel BUG in __folio_start

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Message-ID: <c6f218dc-60f2-47c5-b1ae-b84abbdfd2be@gmx.com>
Date: Fri, 29 Nov 2024 07:56:52 +1030
From: Qu Wenruo <quwenruo.btrfs@....com>
To: syzbot <syzbot+aac7bff85be224de5156@...kaller.appspotmail.com>,
 akpm@...ux-foundation.org, clm@...com, dsterba@...e.com,
 josef@...icpanda.com, linux-btrfs@...r.kernel.org,
 linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-mm@...ck.org, nogikh@...gle.com, syzkaller-bugs@...glegroups.com,
 willy@...radead.org, wqu@...e.com
Subject: Re: [syzbot] [btrfs?] kernel BUG in __folio_start_writeback

# syz test: https://github.com/adam900710/linux.git writeback_fix

在 2024/11/29 05:26, syzbot 写道:
> syzbot has bisected this issue to:
>
> commit c87c299776e4d75bcc5559203ae2c37dc0396d80
> Author: Qu Wenruo <wqu@...e.com>
> Date:   Thu Oct 10 04:46:12 2024 +0000
>
>      btrfs: make buffered write to copy one page a time
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=165dd3c0580000
> start commit:   228a1157fb9f Merge tag '6.13-rc-part1-SMB3-client-fixes' o..
> git tree:       upstream
> final oops:     https://syzkaller.appspot.com/x/report.txt?x=155dd3c0580000
> console output: https://syzkaller.appspot.com/x/log.txt?x=115dd3c0580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=402159daa216c89d
> dashboard link: https://syzkaller.appspot.com/bug?extid=aac7bff85be224de5156
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13840778580000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17840778580000
>
> Reported-by: syzbot+aac7bff85be224de5156@...kaller.appspotmail.com
> Fixes: c87c299776e4 ("btrfs: make buffered write to copy one page a time")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>