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

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Date:   Sat, 30 Sep 2023 17:03:33 -0700
From:   syzbot <syzbot+d6443e1f040e8d616e7b@...kaller.appspotmail.com>
To:     clm@...com, code@...dh.me, dsterba@...e.com, josef@...icpanda.com,
        linux-btrfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com,
        xiaoshoukui@...il.com, xiaoshoukui@...jie.com.cn
Subject: Re: [syzbot] [btrfs?] kernel BUG in btrfs_cancel_balance

syzbot suspects this issue was fixed by commit:

commit 29eefa6d0d07e185f7bfe9576f91e6dba98189c2
Author: xiaoshoukui <xiaoshoukui@...il.com>
Date:   Tue Aug 15 06:55:59 2023 +0000

    btrfs: fix BUG_ON condition in btrfs_cancel_balance

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=170f5bae680000
start commit:   5d0c230f1de8 Linux 6.5-rc4
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=1e3d5175079af5a4
dashboard link: https://syzkaller.appspot.com/bug?extid=d6443e1f040e8d616e7b
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1167e711a80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16a90161a80000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: btrfs: fix BUG_ON condition in btrfs_cancel_balance

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