From patchwork Tue Oct 31 14:11:36 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikolay Borisov X-Patchwork-Id: 10034629 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 42E13603B5 for ; Tue, 31 Oct 2017 14:12:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3516428AE0 for ; Tue, 31 Oct 2017 14:12:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 29F4428AE1; Tue, 31 Oct 2017 14:12:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8E25F28AE9 for ; Tue, 31 Oct 2017 14:12:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753368AbdJaOMf (ORCPT ); Tue, 31 Oct 2017 10:12:35 -0400 Received: from mx2.suse.de ([195.135.220.15]:49732 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753396AbdJaOMc (ORCPT ); Tue, 31 Oct 2017 10:12:32 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 61EC1ADE7; Tue, 31 Oct 2017 14:12:31 +0000 (UTC) From: Nikolay Borisov To: linux-xfs@vger.kernel.org Cc: fstests@vger.kernel.org, darrick.wong@oracle.com, eguan@redhat.com, Nikolay Borisov Subject: [PATCH v2 4/4] xfs: initial fiemap range query test Date: Tue, 31 Oct 2017 16:11:36 +0200 Message-Id: <1509459096-7585-4-git-send-email-nborisov@suse.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1509459096-7585-1-git-send-email-nborisov@suse.com> References: <1509459011-7398-1-git-send-email-nborisov@suse.com> <1509459096-7585-1-git-send-email-nborisov@suse.com> Sender: fstests-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Nikolay Borisov --- tests/xfs/900 | 96 ++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/900.out | 118 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 214 insertions(+) create mode 100755 tests/xfs/900 create mode 100644 tests/xfs/900.out diff --git a/tests/xfs/900 b/tests/xfs/900 new file mode 100755 index 0000000..a81f85f --- /dev/null +++ b/tests/xfs/900 @@ -0,0 +1,96 @@ +#! /bin/bash +# FS QA Test No. 900 +# +# Regression test for an XFS NULL xattr buffer problem during unlink. XFS had a +# bug where the attr fork walk during file removal could go off the rails due to +# a stale reference to content of a released buffer. Memory pressure could cause +# this reference to point to free or reused memory and cause subsequent +# attribute fork lookups to fail, return a NULL buffer and possibly crash. +# +# This test emulates this behavior using an error injection knob to explicitly +# disable buffer LRU caching. This forces the attr walk to execute under +# conditions where each buffer is immediately freed on release. +# +# Commit f35c5e10c6ed ("xfs: reinit btree pointer on attr tree inactivation +# walk") fixed the bug. +# +#----------------------------------------------------------------------- +# Copyright (c) 2017 SUSE Linux Products GmbH. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/punch + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here + +# Modify as appropriate. +_supported_fs generic +_supported_os Linux +_require_scratch +_require_xfs_io_command "falloc" +_require_xfs_io_command "fiemap" "0 4k" + +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount || _fail "mount failure" + +file=$SCRATCH_MNT/testfile +$XFS_IO_PROG -f -c "falloc 0 256k" $file +for i in {0..31}; do $XFS_IO_PROG -c "fpunch $(($i*8))k 4k" $file; done + +# Query 1 data extent between 4k..8k range +echo "Basic data extent" +$XFS_IO_PROG -c "fiemap -v 4k 4k" $file | _filter_fiemap + +# Query data and hole extent +echo "Data + Hole" +$XFS_IO_PROG -c "fiemap -v 4k 5k" $file | _filter_fiemap + +echo "Hole + Data + Hole" +$XFS_IO_PROG -c "fiemap -v 8k 10k" $file | _filter_fiemap + +echo "Beginning with a hole" +$XFS_IO_PROG -c "fiemap -v 0 3k" $file | _filter_fiemap + +# Query for 0..160k that's 40 extents, more than the EXTENT_BATCH +echo "Query more than 32 extents" +$XFS_IO_PROG -c "fiemap -v 0 160k" $file | _filter_fiemap + +echo "Larger query than file size" +$XFS_IO_PROG -c "fiemap -v 0 300k" $file | _filter_fiemap + +# success, all done +status=0 +exit diff --git a/tests/xfs/900.out b/tests/xfs/900.out new file mode 100644 index 0000000..acd309e --- /dev/null +++ b/tests/xfs/900.out @@ -0,0 +1,118 @@ +QA output created by 900 +Basic data extent +0: [8..15]: unwritten +Data + Hole +0: [8..15]: unwritten +1: [16..23]: hole +Hole + Data + Hole +0: [16..23]: hole +1: [24..31]: unwritten +2: [32..39]: hole +Beginning with a hole +0: [0..7]: hole +Query more than 32 extents +0: [0..7]: hole +1: [8..15]: unwritten +2: [16..23]: hole +3: [24..31]: unwritten +4: [32..39]: hole +5: [40..47]: unwritten +6: [48..55]: hole +7: [56..63]: unwritten +8: [64..71]: hole +9: [72..79]: unwritten +10: [80..87]: hole +11: [88..95]: unwritten +12: [96..103]: hole +13: [104..111]: unwritten +14: [112..119]: hole +15: [120..127]: unwritten +16: [128..135]: hole +17: [136..143]: unwritten +18: [144..151]: hole +19: [152..159]: unwritten +20: [160..167]: hole +21: [168..175]: unwritten +22: [176..183]: hole +23: [184..191]: unwritten +24: [192..199]: hole +25: [200..207]: unwritten +26: [208..215]: hole +27: [216..223]: unwritten +28: [224..231]: hole +29: [232..239]: unwritten +30: [240..247]: hole +31: [248..255]: unwritten +32: [256..263]: hole +33: [264..271]: unwritten +34: [272..279]: hole +35: [280..287]: unwritten +36: [288..295]: hole +37: [296..303]: unwritten +38: [304..311]: hole +39: [312..319]: unwritten +Larger query than file size +0: [0..7]: hole +1: [8..15]: unwritten +2: [16..23]: hole +3: [24..31]: unwritten +4: [32..39]: hole +5: [40..47]: unwritten +6: [48..55]: hole +7: [56..63]: unwritten +8: [64..71]: hole +9: [72..79]: unwritten +10: [80..87]: hole +11: [88..95]: unwritten +12: [96..103]: hole +13: [104..111]: unwritten +14: [112..119]: hole +15: [120..127]: unwritten +16: [128..135]: hole +17: [136..143]: unwritten +18: [144..151]: hole +19: [152..159]: unwritten +20: [160..167]: hole +21: [168..175]: unwritten +22: [176..183]: hole +23: [184..191]: unwritten +24: [192..199]: hole +25: [200..207]: unwritten +26: [208..215]: hole +27: [216..223]: unwritten +28: [224..231]: hole +29: [232..239]: unwritten +30: [240..247]: hole +31: [248..255]: unwritten +32: [256..263]: hole +33: [264..271]: unwritten +34: [272..279]: hole +35: [280..287]: unwritten +36: [288..295]: hole +37: [296..303]: unwritten +38: [304..311]: hole +39: [312..319]: unwritten +40: [320..327]: hole +41: [328..335]: unwritten +42: [336..343]: hole +43: [344..351]: unwritten +44: [352..359]: hole +45: [360..367]: unwritten +46: [368..375]: hole +47: [376..383]: unwritten +48: [384..391]: hole +49: [392..399]: unwritten +50: [400..407]: hole +51: [408..415]: unwritten +52: [416..423]: hole +53: [424..431]: unwritten +54: [432..439]: hole +55: [440..447]: unwritten +56: [448..455]: hole +57: [456..463]: unwritten +58: [464..471]: hole +59: [472..479]: unwritten +60: [480..487]: hole +61: [488..495]: unwritten +62: [496..503]: hole +63: [504..511]: unwritten