linux-kernel - Re: [PATCH FIXES/IMPROVEMENTS 0/7] block, bfq: preserve control, boost throughput, fix bugs

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Message-ID: <20210622162948.GJ14261@quack2.suse.cz>
Date:   Tue, 22 Jun 2021 18:29:48 +0200
From:   Jan Kara <jack@...e.cz>
To:     Oleksandr Natalenko <oleksandr@...alenko.name>
Cc:     Paolo Valente <paolo.valente@...aro.org>,
        Jens Axboe <axboe@...nel.dk>,
        linux-block <linux-block@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Luca Mariotti <mariottiluca1@...mail.it>,
        Holger Hoffstätte 
        <holger@...lied-asynchrony.com>,
        Pietro Pedroni <pedroni.pietro.96@...il.com>,
        Piotr Gorski <lucjan.lucjanov@...il.com>,
        Khazhy Kumykov <khazhy@...gle.com>, Jan Kara <jack@...e.cz>
Subject: Re: [PATCH FIXES/IMPROVEMENTS 0/7] block, bfq: preserve control,
 boost throughput, fix bugs

On Tue 22-06-21 09:35:05, Oleksandr Natalenko wrote:
> Hello.
> 
> On úterý 22. června 2021 9:08:43 CEST Paolo Valente wrote:
> > CCing also Jan and Khazhy, because in your commit log I see also the
> > commit on bfq_requests_merged().
> > 
> > Is this OOPS reproducible for you?
> 
> No, I haven't found a reproducer, at least yet. It took half a day of uptime 
> to hit this, so might not be that easy.

Hum, if you can acquire a crash dump it would be the easiest I guess. We'd
need to find out more about the request we crash on - whether it's
otherwise valid, in what state it is etc...

								Honza

-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR