linux-kernel - Re: [syzbot] [btrfs?] WARNING in btrfs_split_ordered

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Message-ID: <00000000000042bb6e05fd9a3406@google.com>
Date:   Thu, 08 Jun 2023 01:40:27 -0700
From:   syzbot <syzbot+ee90502d5c8fd1d0dd93@...kaller.appspotmail.com>
To:     boris@....io, clm@...com, dsterba@...e.com, hch@...radead.org,
        hch@....de, johannes.thumshirn@....com, josef@...icpanda.com,
        linux-btrfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [btrfs?] WARNING in btrfs_split_ordered_extent

syzbot has bisected this issue to:

commit b73a6fd1b1efd799c6e3d14a922887f4453fea17
Author: Boris Burkov <boris@....io>
Date:   Tue Mar 28 05:19:57 2023 +0000

    btrfs: split partial dio bios before submit

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13b24d59280000
start commit:   a27648c74210 afs: Fix setting of mtime when creating a fil..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=10724d59280000
console output: https://syzkaller.appspot.com/x/log.txt?x=17b24d59280000
kernel config:  https://syzkaller.appspot.com/x/.config?x=7474de833c217bf4
dashboard link: https://syzkaller.appspot.com/bug?extid=ee90502d5c8fd1d0dd93
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=120b88fd280000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17e6a23b280000

Reported-by: syzbot+ee90502d5c8fd1d0dd93@...kaller.appspotmail.com
Fixes: b73a6fd1b1ef ("btrfs: split partial dio bios before submit")

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