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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 250F1C433FE for ; Sun, 28 Nov 2021 14:50:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To: Subject:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Txps8BV5KXXLE5Z8Dj4HtwZJIjHx8LsUHB2vb03furM=; b=bEiV8sg83KgF1uoZIvXaQnLuGS Le6F1qlGn99Itb73m48QC64u1MyxEvdevTYd+qkj8E26jIGq+xcQX7TrQLdp/uoKYwlGS6qRPBCSj XQRw/hA/qmK8V0M39lpd5VtXS2nWIU7+j7UFo5pU5NxafdaYQqKtCqZ5WD5kS8oNCnFDPqVROQTjA kpotK7Q2Bu7XfSCUd/cv+yy4TAnQ/dxdqBCUpHCK5SZNJufW3owSKF2ZGvahZar41nLsO/dj31fPS ViDbYlRIMoZh/3Skx/1Ma1NcN89R9PMKjmsQuhTsn0cR0sxsEEOoPFcWPiFD6ANmW1rpCDD/Pus0Q pcJaHzQg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mrLVt-00FzsH-1W; Sun, 28 Nov 2021 14:50:45 +0000 Received: from mail-io1-xd35.google.com ([2607:f8b0:4864:20::d35]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mrLVp-00FzrW-Tj for linux-nvme@lists.infradead.org; Sun, 28 Nov 2021 14:50:43 +0000 Received: by mail-io1-xd35.google.com with SMTP id 14so17709015ioe.2 for ; Sun, 28 Nov 2021 06:50:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=Txps8BV5KXXLE5Z8Dj4HtwZJIjHx8LsUHB2vb03furM=; b=RiTzv1xSgdvwqnqWp1SXVPrTRBpb6DAg2TnKPceezDniBL2S1NlsonFMXDz+45YHO1 BFIMKqdBc445J8nJfMwWjBLKzbxvlekQBNG+/tLTBdUs9dOXF8l06CLOeehBcYDkSjFg lPNfFvxzd7Uhkq6B67VDg0SJSb3gZ94qDT+srk+nHBI8z5oGgs5f+Th6ZGOCdv9DUqCQ E3p2Fu8+sIqRXqw/bSOGqX7vi4/JKRGEw1kLcDvUbcVRoBLDvU5us2mBfCOHTa6Q+L6F tF9CY4KfFjx5LR/uTlm1vqtnZTSmuzl40A2UTPxF9XmouhSBeqVajze+KY76eljOjjCI mTbA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=Txps8BV5KXXLE5Z8Dj4HtwZJIjHx8LsUHB2vb03furM=; b=x25i+nmgCE3nXE7zUH+wHEyeQof+gr/oZCaJyZ6SzAqCRZU09bWAuh8HzeJuuaUL5E HhJNNi7MP4AG9O/5+FDlWeqXLEqzu6PboWDYkp+Hmi50ArKUegoh7VzKJVspgl2UTvRH YkZjoG78C6XAhCoVaehEg1T+e7Pf5P6L9CR0qDFXg61YnhAFLpMr1zvTK1qZ5sO55WN0 w4JGcEa8eol80CdG2KddlIDKTvJB6B16qlpV/CGUk2JaPDWDuVf+2tXZpN+7lsf8irpg Ucq/0eEVYVKERZ8eUx4QeGLNZMnI8q3xHasi1RZvoacOwchKm9zKO8mVBtJs1BMTDnMq FUGA== X-Gm-Message-State: AOAM532zrFGyItogOoVi/1YQRxu/Op1WGohXyTP1OK7R+dRvmn8OGq3N A1JWjY1rq3zEBl2CBDiFpsOmRw== X-Google-Smtp-Source: ABdhPJyLSvA0K16M7WTbsvdBpW4pLzudrSbFlFJc6kW9I+0NBLSERL16NBvWVxYaC6PS327/5+okjw== X-Received: by 2002:a02:9609:: with SMTP id c9mr62298537jai.118.1638111040447; Sun, 28 Nov 2021 06:50:40 -0800 (PST) Received: from [192.168.1.116] ([66.219.217.159]) by smtp.gmail.com with ESMTPSA id s9sm6817343iow.48.2021.11.28.06.50.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 28 Nov 2021 06:50:39 -0800 (PST) Subject: Re: Write I/O queue hangup at random on recent Linus' kernels To: "Kenneth R. Crudup" Cc: linux-bcache@vger.kernel.org, linux-block@vger.kernel.org, linux-ext4@vger.kernel.org, linux-nvme@lists.infradead.org, Shinichiro Kawasaki References: <17206ea6-506d-b1de-09e8-c935ff308bd6@kernel.dk> <903be817-4118-f34e-1b35-a0108045590f@kernel.dk> <986e942b-d430-783b-5b1c-4525d4a94e48@panix.com> <1ff86d55-f39d-f88b-b8d-b6dfbd2f1b19@panix.com> From: Jens Axboe Message-ID: <838c86fa-bb3d-6794-64fd-35b81c62bbb6@kernel.dk> Date: Sun, 28 Nov 2021 07:50:36 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211128_065042_057648_C8214D6B X-CRM114-Status: UNSURE ( 9.44 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On 11/27/21 5:11 PM, Kenneth R. Crudup wrote: > > On Fri, 26 Nov 2021, Jens Axboe wrote: > >>>> That said, I'm pretty confident in the fix, > > Moot point kinda, as I see the fix in Linus' master, but yeah, it's > working here. Thanks for testing! I had a high level of confidence in that fix, and wanted to flush it out before -rc3. But testing is always appreciated, and thanks for the initial report as well. -- Jens Axboe