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Date: Wed, 17 Aug 2022 20:33:35 +0200 From: Jan Kara <jack@...e.cz> To: Chris Murphy <lists@...orremedies.com> Cc: Jan Kara <jack@...e.cz>, 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 17-08-22 14:18:01, Chris Murphy wrote: > > > 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 :) Let's try to revert this first so that we have it narrowed down what started causing the issues. Honza -- Jan Kara <jack@...e.com> SUSE Labs, CR
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