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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 79726C43331 for ; Thu, 4 Mar 2021 00:24:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5258664E12 for ; Thu, 4 Mar 2021 00:24:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238746AbhCDAYP (ORCPT ); Wed, 3 Mar 2021 19:24:15 -0500 Received: from outgoing-auth-1.mit.edu ([18.9.28.11]:51306 "EHLO outgoing.mit.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1387962AbhCCUCv (ORCPT ); Wed, 3 Mar 2021 15:02:51 -0500 Received: from cwcc.thunk.org (pool-72-74-133-215.bstnma.fios.verizon.net [72.74.133.215]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 123K20IP011008 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 3 Mar 2021 15:02:01 -0500 Received: by cwcc.thunk.org (Postfix, from userid 15806) id 7301015C3A88; Wed, 3 Mar 2021 15:02:00 -0500 (EST) Date: Wed, 3 Mar 2021 15:02:00 -0500 From: "Theodore Ts'o" To: Su Yue Cc: "Darrick J. Wong" , fstests@vger.kernel.org Subject: Re: [PATCH] generic: test which tries to exercise AIO/DIO into unwritten space Message-ID: References: <20210210205818.1494305-1-tytso@mit.edu> <20210301171440.GD7269@magnolia> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org On Tue, Mar 02, 2021 at 11:20:06AM +0800, Su Yue wrote: > But both xfs and ext4 100% fail in v5.12-rc1 with 4k block size and 4k page > size on x86_64. The test itself should be okay because btrfs passes. > xfstests-dev version is 8cbc48b460b6 applied this patch. logs are attached. Hmm, interesting. Thanks for the report. I've been running most of my tests on a GCE VVM (using gce-xfstests) with a 100GB PD-SSD as the storage device. I just tried, and it's passing now reliably on both 4k and 1k for me, both on v5.11 and v5.12-rc1. (Previously it was failing about 30% of the time on the ext4/1k test scenario, and was passing 100% on ext4/4k.) Given your report, I tried running it using KVM (with a NVME ssd as the back-end storage device), and it's failing 80% of the time using the 4k block size. So previously I had assumed that it was passing consistently on with ext4/4k, but it looks like that it's very much dependent on the performance of the TEST_DEV. - Ted