linux-kernel - Re: Regression with a0747a859ef6 ("bdi: add error handle for bdi_debug

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Message-ID: <20171214154136.GA12936@wolff.to>
Date:   Thu, 14 Dec 2017 09:41:36 -0600
From:   Bruno Wolff III <bruno@...ff.to>
To:     Laura Abbott <labbott@...hat.com>, Jan Kara <jack@...e.cz>,
        Jens Axboe <axboe@...nel.dk>, linux-mm@...ck.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        regressions@...mhuis.info, linux-block@...r.kernel.org
Subject: Re: Regression with a0747a859ef6 ("bdi: add error handle for
 bdi_debug_register")

On Thu, Dec 14, 2017 at 18:09:27 +0800,
  weiping zhang <zhangweiping@...ichuxing.com> wrote:
>
>It seems something wrong with bdi debugfs register, could you help
>test the forllowing debug patch, I add some debug log, no function
>change, thanks.

I applied your patch to d39a01eff9af1045f6e30ff9db40310517c4b45f and there 
were some new debug messages in the dmesg output. Hopefully this helps. I 
also added the patch and output to the Fedora bug for people following there.

View attachment "boot1.log" of type "text/plain" (98511 bytes)