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 910D4C25B08 for ; Wed, 17 Aug 2022 14:39:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240320AbiHQOjN (ORCPT ); Wed, 17 Aug 2022 10:39:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240285AbiHQOiy (ORCPT ); Wed, 17 Aug 2022 10:38:54 -0400 Received: from new3-smtp.messagingengine.com (new3-smtp.messagingengine.com [66.111.4.229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A9C39C8F4; Wed, 17 Aug 2022 07:37:58 -0700 (PDT) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailnew.nyi.internal (Postfix) with ESMTP id 6DEC9580D68; Wed, 17 Aug 2022 10:37:57 -0400 (EDT) Received: from imap50 ([10.202.2.100]) by compute3.internal (MEProxy); Wed, 17 Aug 2022 10:37:57 -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=1660747077; x= 1660750677; bh=lvuuMfAWpplBEzLm5cL1HHt3BK8ecTFvKbdlnZbzzGE=; b=s nlndHuQ43Rqu7mGPh+CUHVt8JC8IYhT75XZ4CCLhURXZ6csIY2Nl8CuyAn8dtQAy kv4QWo0dTEIQL37BLumjLXey+d3IbvvTowkEOk11QR3HmUAhO9v/nAby5AHbxPxG p6ylZjezTpyLbZ9C1Ca6nRv9XL4VmOKqblA1C7bWJ/yzRBJeL3xXuwQSoKw3AjyK X3ZHGQDHDa1hNT1byFFEfxJUQhrb95C3OmiWBRG9hAD5+uS8xBihCmjbhI7BVs9o hrZNiKJy+93dZDDpuqyRw7DreVnjE25RenJsZkItgxfTcpbgqZcHTof3x9v9x69K ruAUl61CGoA890pWFJAGw== 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=1660747077; x=1660750677; bh=lvuuMfAWpplBEzLm5cL1HHt3BK8e cTFvKbdlnZbzzGE=; b=xUijTkXrQOBVvyWsRmpx9vdIjuePl7LHzXkEOSX8lhCF /muWjienfwYb9wStRHPag6hgW5BGZVv7P7wigZ388FtqAnK57IjmTIABMovcO2y2 IGbIj3c2tvQy1Zem5Q0lAGl3y+t2duf1vpK+ueS60ksD2wsKQ8c7GVG0Uy4N5lyu gAg9+Nh3hTIw1QdfgoNa2tzzYZrlMzV+2snOuHDcuD7etvUZvGnMHTrKM2U4//3w Yjqx9/6ItLKQJuZy3bErhfTDywm6Pl880YPRTeEmGbbcPZMkcpVkaLLK9fSNeu+I L4Hnfd76cSFzxMCrTap23Jb5YFGjsm8X6odZEhZxgw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvfedrvdehiedgjeekucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepofgfggfkjghffffhvfevufgtsehttdertderredtnecuhfhrohhmpedfvehh rhhishcuofhurhhphhihfdcuoehlihhsthhssegtohhlohhrrhgvmhgvughivghsrdgtoh hmqeenucggtffrrghtthgvrhhnpefgvdeukedtfefgfefgtdelffdvieeltefgfedutdff leeuieevieevkeehtdehueenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmh grihhlfhhrohhmpehlihhsthhssegtohhlohhrrhgvmhgvughivghsrdgtohhm X-ME-Proxy: Feedback-ID: i06494636:Fastmail Received: by mailuser.nyi.internal (Postfix, from userid 501) id 14F4F1700082; Wed, 17 Aug 2022 10:37:57 -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: <63ca1776-764e-482c-a4f4-0f3616be83d5@www.fastmail.com> In-Reply-To: <20220817114933.66c4g4xjsi4df2tg@quack3> References: <61e5ccda-a527-4fea-9850-91095ffa91c4@www.fastmail.com> <4995baed-c561-421d-ba3e-3a75d6a738a3@www.fastmail.com> <2b8a38fa-f15f-45e8-8caa-61c5f8cd52de@www.fastmail.com> <7c830487-95a6-b008-920b-8bc4a318f10a@applied-asynchrony.com> <20220817114933.66c4g4xjsi4df2tg@quack3> Date: Wed, 17 Aug 2022 10:37:35 -0400 From: "Chris Murphy" To: "Jan Kara" , =?UTF-8?Q?Holger_Hoffst=C3=A4tte?= Cc: "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 7:49 AM, Jan Kara wrote: > Another thing worth trying is to compile the kernel without > CONFIG_BFQ_GROUP_IOSCHED. That will essentially disable cgroup support in > BFQ so we will see whether the problem may be cgroup related or not. Does boot param cgroup.disable=io affect it? Because the problem still happens with that parameter. Otherwise I can build a kernel with it disabled. -- Chris Murphy