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=-9.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 44228C433E0 for ; Mon, 27 Jul 2020 15:14:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1FD4920672 for ; Mon, 27 Jul 2020 15:14:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="bxpXFkKe" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729766AbgG0POm (ORCPT ); Mon, 27 Jul 2020 11:14:42 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:29887 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728711AbgG0POl (ORCPT ); Mon, 27 Jul 2020 11:14:41 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1595862880; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=a2iihc1HWAJriXV+8/xi93MCdLbyiJT8cN8MK6IDGnQ=; b=bxpXFkKehZV352XwKr5ldfC1K6vaq6j48OjnFLCsRkRhSIVYEH0L1axmweWUws0qNQxfKW HUUUrbWGwt+rq7cqEMQvDWezIY1H2uoyVrLOryZujVjRZM2yj4UsRW7395K2Aplc2oeQ4s DdVG5osze+SPQshqwSjcQPdSLyHtf+A= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-9-2KTziDVCMn-lEWAW22M7jA-1; Mon, 27 Jul 2020 11:14:36 -0400 X-MC-Unique: 2KTziDVCMn-lEWAW22M7jA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 73B35193248A; Mon, 27 Jul 2020 15:14:32 +0000 (UTC) Received: from T590 (ovpn-12-208.pek2.redhat.com [10.72.12.208]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 916045C1C3; Mon, 27 Jul 2020 15:14:21 +0000 (UTC) Date: Mon, 27 Jul 2020 23:14:16 +0800 From: Ming Lei To: Petr Vorel Cc: kernel test robot , Jens Axboe , Sagi Grimberg , LKML , Christoph Hellwig , lkp@lists.01.org, Baolin Wang , Christoph Hellwig , ltp@lists.linux.it Subject: Re: [LTP] [blk] 6e6fcbc27e: ltp.fs_fill.fail Message-ID: <20200727151416.GA1298062@T590> References: <20200726075511.GI1850@shao2-debian> <20200727093156.GA29739@dell5510> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200727093156.GA29739@dell5510> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 27, 2020 at 11:31:56AM +0200, Petr Vorel wrote: > Hi, > > > FYI, we noticed the following commit (built with gcc-9): > > > commit: 6e6fcbc27e7788af54139c53537395d95560f2ef ("blk-mq: support batching dispatch in case of io") > > https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git for-5.9/drivers > > > > in testcase: ltp > > with following parameters: > > > disk: 1HDD > > fs: ext4 > > test: fs-03 > > > test-description: The LTP testsuite contains a collection of tools for testing the Linux kernel and related features. > > test-url: http://linux-test-project.github.io/ > > > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G > > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > ... > > tst_test.c:1308: INFO: Testing on vfat > > tst_mkfs.c:90: INFO: Formatting /dev/loop0 with vfat opts='' extra opts='' > > tst_test.c:1247: INFO: Timeout per run is 0h 05m 00s > > fs_fill.c:103: INFO: Running 10 writer threads > > Test timeouted, sending SIGKILL! > > Test timeouted, sending SIGKILL! > > Test timeouted, sending SIGKILL! > > Test timeouted, sending SIGKILL! > > Test timeouted, sending SIGKILL! > > Test timeouted, sending SIGKILL! > The only "error" I found is that fs_fill test timeouted on vfat. That might > indicate some problems. Note, for slow machines, there is LTP_TIMEOUT_MUL > https://github.com/linux-test-project/ltp/wiki/User-Guidelines#1-library-environment-variables I have run fs_fill test for a while, and can't reproduce it, and I am sure vfat is covered. Thanks, Ming