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 X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3A9B2C04EB8 for ; Thu, 6 Dec 2018 20:56:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 075B62146F for ; Thu, 6 Dec 2018 20:56:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 075B62146F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=acm.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-block-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725944AbeLFU4r (ORCPT ); Thu, 6 Dec 2018 15:56:47 -0500 Received: from mail-pg1-f171.google.com ([209.85.215.171]:40784 "EHLO mail-pg1-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725936AbeLFU4r (ORCPT ); Thu, 6 Dec 2018 15:56:47 -0500 Received: by mail-pg1-f171.google.com with SMTP id z10so670890pgp.7 for ; Thu, 06 Dec 2018 12:56:46 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:subject:from:to:cc:date:in-reply-to :references:mime-version:content-transfer-encoding; bh=r8QNGSohP2oUThlbBnhT8bhpU2XXjCwTYKVwbJOUNV0=; b=Zthx5ejWNYvaHwUPFEe3i3xTsgWSspp+guBBCiNbLYJ4RxcNWnTkXEtVXhbb4HIf17 /dNUmK37suMbmz14CsSFhgUS58jryuKgJwtjYpek1KE76r4qqO/A1PCEN0Dcfs7AzQay ByZOXNolkQJWKAeHpXymi2Nr+81fHszv3FGx2V29FKm7t6aex0TVqVpTtKnTYE92OCAf QgMBe0YvsFG949em4VZNMPta6dEbVS5agj9q6jF/f1av2/IokoZGXiXJqDv7iIOfxcC+ kXQcx5mpVIZ93jbqw4PKZ1bP+F24PJZXXxf/inv7SthAsn8ox/nQktuofrZxkZqrMfD9 15tw== X-Gm-Message-State: AA+aEWYV35ZYBde5xbG6WuJ2RRK1AKRcy3bpOJyaFqwt0OYfIOzYXzqr F4UjTBTepz52Iy+Cp+vHkII= X-Google-Smtp-Source: AFSGD/Wurhy3JOR/we6+y/PsVOtdBZDPGmoFby2YZB+mt7pn/r56oT665/fmDrK6zLH9xE115CzUNA== X-Received: by 2002:a63:e545:: with SMTP id z5mr25405080pgj.195.1544129806255; Thu, 06 Dec 2018 12:56:46 -0800 (PST) Received: from ?IPv6:2620:15c:2cd:203:5cdc:422c:7b28:ebb5? ([2620:15c:2cd:203:5cdc:422c:7b28:ebb5]) by smtp.gmail.com with ESMTPSA id y1sm1476660pfe.9.2018.12.06.12.56.44 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 06 Dec 2018 12:56:44 -0800 (PST) Message-ID: <1544129803.185366.287.camel@acm.org> Subject: Re: for-next branch and blktests/srp From: Bart Van Assche To: Jens Axboe Cc: "linux-block@vger.kernel.org" , Mike Snitzer Date: Thu, 06 Dec 2018 12:56:43 -0800 In-Reply-To: <1544114872.185366.250.camel@acm.org> References: <1544114872.185366.250.camel@acm.org> Content-Type: text/plain; charset="UTF-7" X-Mailer: Evolution 3.26.2-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Thu, 2018-12-06 at 08:47 -0800, Bart Van Assche wrote: +AD4 If I merge Jens' for-next branch with Linus' master branch, boot the +AD4 resulting kernel in a VM and run blktests/tests/srp/002 then that test +AD4 never finishes. The same test passes against Linus' master branch. I +AD4 think this is a regression. The following appears in the system log if +AD4 I run that test: +AD4 +AD4 Call Trace: +AD4 INFO: task kworker/0:1:12 blocked for more than 120 seconds. +AD4 Call Trace: +AD4 INFO: task ext4lazyinit:2079 blocked for more than 120 seconds. +AD4 Call Trace: +AD4 INFO: task fio:2151 blocked for more than 120 seconds. +AD4 Call Trace: +AD4 INFO: task fio:2154 blocked for more than 120 seconds. Hi Jens, My test results so far are as follows: +ACo With kernel v4.20-rc5 test srp/002 passes. +ACo With your for-next branch test srp/002 reports the symptoms reported in my e-mail. +ACo With Linus' master branch from this morning test srp/002 fails in the same way as your for-next branch. +ACo Also with Linus' master branch, test srp/002 passes if I revert the following commit: ffe81d45322c (+ACI-blk-mq: fix corruption with direct issue+ACI). So it seems like that commit fixed one regression but introduced another regression. Bart.