Re: INFO: task hung in wb_shutdown (2)

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To: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>, Jan Kara <jack@xxxxxxx>, Tejun Heo <tj@xxxxxxxxxx>
Subject: Re: INFO: task hung in wb_shutdown (2)
From: Jens Axboe <axboe@xxxxxxxxx>
Date: Tue, 1 May 2018 10:12:34 -0600
Cc: syzbot <syzbot+c0cf869505e03bdf1a24@xxxxxxxxxxxxxxxxxxxxxxxxx>, christophe.jaillet@xxxxxxxxxx, LKML <linux-kernel@xxxxxxxxxxxxxxx>, linux-mm <linux-mm@xxxxxxxxx>, syzkaller-bugs@xxxxxxxxxxxxxxxx, weiping zhang <zhangweiping@xxxxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Dmitry Vyukov <dvyukov@xxxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx
In-reply-to: <43302799-1c50-4cab-b974-9fe1ca584813@I-love.SAKURA.ne.jp>
References: <94eb2c05b2d83650030568cc8bd9@google.com> <e56c1600-8923-dd6b-d065-c2fd2a720404@I-love.SAKURA.ne.jp> <43302799-1c50-4cab-b974-9fe1ca584813@I-love.SAKURA.ne.jp>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0

On 5/1/18 4:27 AM, Tetsuo Handa wrote:
> Tejun, Jan, Jens,
> 
> Can you review this patch? syzbot has hit this bug for nearly 4000 times but
> is still unable to find a reproducer. Therefore, the only way to test would be
> to apply this patch upstream and test whether the problem is solved.

I'll review it today.

-- 
Jens Axboe

References:
- Re: INFO: task hung in wb_shutdown (2)
  - From: Tetsuo Handa

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