Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Subject: Re: INFO: task hung in io_wq_destroy
To:     Eric Biggers <ebiggers@kernel.org>
Cc:     syzbot <syzbot+0f1cc17f85154f400465@syzkaller.appspotmail.com>,
        andriy.shevchenko@linux.intel.com, davem@davemloft.net,
        f.fainelli@gmail.com, gregkh@linuxfoundation.org,
        idosch@mellanox.com, kimbrownkd@gmail.com,
        linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
        netdev@vger.kernel.org, petrm@mellanox.com,
        syzkaller-bugs@googlegroups.com, tglx@linutronix.de,
        viro@zeniv.linux.org.uk, wanghai26@huawei.com,
        yuehaibing@huawei.com
References: <000000000000f86a4f0595fdb152@google.com>
 <f1a79e81-b41f-ba48-9bf3-aeae708f73ba@kernel.dk>
 <20191119022330.GC3147@sol.localdomain>
From:   Jens Axboe <axboe@kernel.dk>
Message-ID: <bc52115c-3951-54c6-7810-86797d8c4644@kernel.dk>
Date:   Mon, 18 Nov 2019 20:15:13 -0700
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101
 Thunderbird/60.9.0
MIME-Version: 1.0
In-Reply-To: <20191119022330.GC3147@sol.localdomain>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On 11/18/19 7:23 PM, Eric Biggers wrote:
> Hi Jens,
> 
> On Mon, Oct 28, 2019 at 03:00:08PM -0600, Jens Axboe wrote:
>> This is fixed in my for-next branch for a few days at least, unfortunately
>> linux-next is still on the old one. Next version should be better.
> 
> This is still occurring on linux-next.  Here's a report on next-20191115 from
> https://syzkaller.appspot.com/text?tag=CrashReport&x=16fa3d1ce00000

Hmm, I'll take a look. Looking at the reproducer, it's got a massive
sleep at the end. I take it this triggers before that time actually
passes? Because that's around 11.5 days of sleep.

No luck reproducing this so far, I'll try on linux-next.

-- 
Jens Axboe