linux-kernel - Re: stalling IO regression since linux 5.12, through 5.18

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Message-Id: <e4c260da-2df7-49a3-a8dc-1d3fc7ca12a0@www.fastmail.com>
Date:   Wed, 17 Aug 2022 14:18:01 -0400
From:   "Chris Murphy" <lists@...orremedies.com>
To:     "Jan Kara" <jack@...e.cz>
Cc:     Holger Hoffstätte <holger@...lied-asynchrony.com>,
        "Nikolay Borisov" <nborisov@...e.com>,
        "Jens Axboe" <axboe@...nel.dk>,
        "Paolo Valente" <paolo.valente@...aro.org>,
        Linux-RAID <linux-raid@...r.kernel.org>,
        linux-block <linux-block@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "Josef Bacik" <josef@...icpanda.com>
Subject: Re: stalling IO regression since linux 5.12, through 5.18



On Wed, Aug 17, 2022, at 2:15 PM, Jan Kara wrote:

> OK, if this indeed passes then b6e68ee82585 ("blk-mq: Improve performance
> of non-mq IO schedulers with multiple HW queues") might be what's causing
> issues (although I don't know how yet...).

I can revert it from 5.12.0 and try. Let me know which next test is preferred :)


-- 
Chris Murphy