Re: [syzbot] [btrfs?] kernel BUG in __folio_start_writeback

Qu Wenruo
2024-11-28T21:27:18Z

# 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@suse.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@syzkaller.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
>