From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6DC08C25B08 for ; Wed, 17 Aug 2022 18:55:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240243AbiHQSzU (ORCPT ); Wed, 17 Aug 2022 14:55:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45986 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233617AbiHQSzT (ORCPT ); Wed, 17 Aug 2022 14:55:19 -0400 Received: from new2-smtp.messagingengine.com (new2-smtp.messagingengine.com [66.111.4.224]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BA75C57209; Wed, 17 Aug 2022 11:55:18 -0700 (PDT) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailnew.nyi.internal (Postfix) with ESMTP id 18AE9581153; Wed, 17 Aug 2022 14:55:18 -0400 (EDT) Received: from imap50 ([10.202.2.100]) by compute3.internal (MEProxy); Wed, 17 Aug 2022 14:55:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= colorremedies.com; h=cc:cc:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm1; t=1660762518; x= 1660766118; bh=2MSzHf7ULCb3kZkQymVkXbgysig1iR5rZCCBOLTeyYk=; b=J 6RpGRAB8er5OtqTwFoSv99IibnkkxQSmPTHsH6PTM0ychl74tOyhxCDoq+N3oiL3 gWJCBrYbFwHTDFwxmKH4krAdtSjiQqYueFzQZCYcalHSYLPBijPbJ98BXAOFi03R NlBHluWZUf3BedagU/MrlLIjP46hHscZOZGN86WS/jL4uh3buXTUmBPUrqteSuR8 9jpl2mkTibR15MdaUfLSs2LB1WkS8HbTjSETx46E676XnvUsGVM+qdRFRbWqAmZS RJRx67cxEbOZ0GqftDKHkVXJO0qs5DSzZkfciknwL6pvlU6yjKmRxoBdxCgnszRt h/Da8XLwjd5jj34g1C8MA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:date:date:feedback-id :feedback-id:from:from:in-reply-to:in-reply-to:message-id :mime-version:references:reply-to:sender:subject:subject:to:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; t=1660762518; x=1660766118; bh=2MSzHf7ULCb3kZkQymVkXbgysig1 iR5rZCCBOLTeyYk=; b=fKlkXzeY3T1X6lDoHRmZyhzHI+rnwVk0dEzPZWk3EmEK Tc5wYnCbVprGssXbQvp6Os4phdDd24CYfvN30BXcGwqvb9lbrdWLlpuL6XGDXCSZ K+4qFdwKa+nbuWmHsn9Q1TtqI3bxPqNUci5aHQGngNT6uPgQCPb88VvyBLuEEffe MI2fgQv6+Z+zinSNHzTPdePtaOSRBu+foKS7NQ+OUjCCjDq4z6j6s8hlBVWxWLD8 C8oKR62ZMHL7t1zlCSiEXUh2yz8VPz4P2x9BxC9E/4j12MRUDagueXcBCJ1944CW i33KsosNmIF+M5VAFmowuPTvJIoxjvTvTOL5HU6HHw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvfedrvdehiedgudefvdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpefofgggkfgjfhffhffvvefutgesthdtredtreertdenucfhrhhomhepfdev hhhrihhsucfouhhrphhhhidfuceolhhishhtshestgholhhorhhrvghmvgguihgvshdrtg homheqnecuggftrfgrthhtvghrnhepgfdvueektdefgfefgfdtleffvdeileetgfefuddt ffelueeiveeiveekhedtheeunecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpe hmrghilhhfrhhomheplhhishhtshestgholhhorhhrvghmvgguihgvshdrtghomh X-ME-Proxy: Feedback-ID: i06494636:Fastmail Received: by mailuser.nyi.internal (Postfix, from userid 501) id 553831700082; Wed, 17 Aug 2022 14:55:17 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.7.0-alpha0-841-g7899e99a45-fm-20220811.002-g7899e99a Mime-Version: 1.0 Message-Id: <2f252399-0e30-4465-8c02-3f42c145174a@www.fastmail.com> In-Reply-To: <20220817183335.47a4ao26wjopavo2@quack3> References: <2b8a38fa-f15f-45e8-8caa-61c5f8cd52de@www.fastmail.com> <7c830487-95a6-b008-920b-8bc4a318f10a@applied-asynchrony.com> <20220817114933.66c4g4xjsi4df2tg@quack3> <85a141ae-56a7-4dcd-b75a-04be4b276b3a@www.fastmail.com> <20220817163059.kigrvdfmxfswmhls@quack3> <51cd43f9-ab6b-4dd6-814f-e0c1ace3143c@www.fastmail.com> <20220817181554.znqljc6mmci45ukd@quack3> <20220817183335.47a4ao26wjopavo2@quack3> Date: Wed, 17 Aug 2022 14:54:42 -0400 From: "Chris Murphy" To: "Jan Kara" Cc: =?UTF-8?Q?Holger_Hoffst=C3=A4tte?= , "Nikolay Borisov" , "Jens Axboe" , "Paolo Valente" , Linux-RAID , linux-block , linux-kernel , "Josef Bacik" Subject: Re: stalling IO regression since linux 5.12, through 5.18 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Wed, Aug 17, 2022, at 2:33 PM, Jan Kara wrote: > 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. OK I've reverted b6e68ee82585, and removing megaraid_sas.host_tagset_enable=0, and will restart the workload... Usually it's within 10 minutes but the newer the kernel it seems the longer it takes, or the more things I have to throw at it. The problem doesn't reproduce at all with 5.19 series unless I also run a separate dnf install, and that only triggers maybe 1 in 3 times. -- Chris Murphy