Subject: Re: [syzbot] INFO: task can't die in __bio_queue_enter
To:     syzbot <syzbot+7ab022485f6761927d68@syzkaller.appspotmail.com>,
        andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org,
        daniel@iogearbox.net, john.fastabend@gmail.com, kafai@fb.com,
        kpsingh@kernel.org, linux-block@vger.kernel.org,
        linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
        songliubraving@fb.com, syzkaller-bugs@googlegroups.com, yhs@fb.com
References: <00000000000007948005d0d1214b@google.com>
From:   Jens Axboe <axboe@kernel.dk>
Message-ID: <10fc0905-b166-ac20-560c-68f32bcccdad@kernel.dk>
Date:   Mon, 15 Nov 2021 06:14:49 -0700
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On 11/15/21 3:18 AM, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    ad8be4fa6e81 Add linux-next specific files for 20211111
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=17026efab00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=ba9c83199208e103
> dashboard link: https://syzkaller.appspot.com/bug?extid=7ab022485f6761927d68
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

#syz fix blk-mq: don't grab ->q_usage_counter in blk_mq_sched_bio_merge

-- 
Jens Axboe