linux-kernel - Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

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Message-ID: <912e4814-eeee-a959-c049-2aa22bb80781@kernel.dk>
Date:   Sun, 5 Mar 2017 08:12:30 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     Fengguang Wu <fengguang.wu@...el.com>, Jan Kara <jack@...e.cz>
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        LKP <lkp@...org>
Subject: Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more
 than 120 seconds.

On 03/04/2017 07:21 PM, Fengguang Wu wrote:
> Hi Jan,
> 
> FYI next-20170303 is good while mainline is bad with this error.
> The attached reproduce-* may help reproduce the issue.

What's the test case here? It's Sunday, we need to make a quick
decision on whether to revert this patch or not. I'm inclined to
do so.

Jan?

-- 
Jens Axboe