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

syzbot
2024-11-28T18:56:03Z

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