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Message-ID: <000000000000b93c240605e27901@google.com>
Date:   Thu, 21 Sep 2023 11:15:23 -0700
From:   syzbot <syzbot+dafbca0e20fbc5946925@...kaller.appspotmail.com>
To:     axboe@...nel.dk, clm@...com, dsterba@...e.com,
        josef@...icpanda.com, kristian@...usen.dk,
        linux-block@...r.kernel.org, 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_commit_transaction (2)

syzbot has bisected this issue to:

commit 2b9ac22b12a266eb4fec246a07b504dd4983b16b
Author: Kristian Klausen <kristian@...usen.dk>
Date:   Fri Jun 18 11:51:57 2021 +0000

    loop: Fix missing discard support when using LOOP_CONFIGURE

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15dfb0f4680000
start commit:   57012c57536f Merge tag 'net-6.5-rc4' of git://git.kernel.o..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=17dfb0f4680000
console output: https://syzkaller.appspot.com/x/log.txt?x=13dfb0f4680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5f28dfd7d77a7042
dashboard link: https://syzkaller.appspot.com/bug?extid=dafbca0e20fbc5946925
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=173a6716a80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=111c7c7ea80000

Reported-by: syzbot+dafbca0e20fbc5946925@...kaller.appspotmail.com
Fixes: 2b9ac22b12a2 ("loop: Fix missing discard support when using LOOP_CONFIGURE")

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

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