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From:   Paolo Valente <paolo.valente@linaro.org>
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Subject: Re: [PATCH BUGFIX 1/1] block, bfq: add requeue-request hook
Date:   Wed, 7 Feb 2018 10:45:14 +0100
In-Reply-To: <1517995431.25619.5.camel@gmx.de>
Cc:     Oleksandr Natalenko <oleksandr@natalenko.name>,
        Jens Axboe <axboe@kernel.dk>,
        linux-block <linux-block@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Ulf Hansson <ulf.hansson@linaro.org>,
        Mark Brown <broonie@kernel.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        'Paolo Valente' via bfq-iosched 
        <bfq-iosched@googlegroups.com>,
        Alban Browaeys <alban.browaeys@gmail.com>,
        Ming Lei <ming.lei@redhat.com>, Ivan Kozik <ivan@ludios.org>,
        SERENA ZIVIANI <169364@studenti.unimore.it>,
        Serena Ziviani <ziviani.serena@gmail.com>,
        =?utf-8?Q?Holger_Hoffst=C3=A4tte?= <holger@applied-asynchrony.com>
To:     Mike Galbraith <efault@gmx.de>
References: <20180205190510.5499-1-paolo.valente@linaro.org>
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> Il giorno 07 feb 2018, alle ore 10:23, Mike Galbraith <efault@gmx.de> =
ha scritto:
>=20
> On Wed, 2018-02-07 at 10:08 +0100, Paolo Valente wrote:
>>=20
>> The first piece of information I need is whether this failure happens
>> even without "BFQ hierarchical scheduling support".
>=20
> I presume you mean BFQ_GROUP_IOSCHED, which I do not have enabled.
>=20

Great (so to speak), this saves us one step.

So, here's my next request for help: please apply the attached patch =
(compressed to preserve it from my email client) and retry. It adds =
several anomaly checks. I hope I have not added any false-positive =
check.

Thanks,
Paolo


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> 	-Mike 


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