From patchwork Wed Apr 12 01:27:50 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liu Bo X-Patchwork-Id: 9676405 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 06B0D60382 for ; Wed, 12 Apr 2017 01:29:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EC83B2852E for ; Wed, 12 Apr 2017 01:29:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E11852857B; Wed, 12 Apr 2017 01:29:16 +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, UNPARSEABLE_RELAY autolearn=unavailable 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 25A232852E for ; Wed, 12 Apr 2017 01:29:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751995AbdDLB3H (ORCPT ); Tue, 11 Apr 2017 21:29:07 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:46064 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751564AbdDLB3G (ORCPT ); Tue, 11 Apr 2017 21:29:06 -0400 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id v3C1T4bt025099 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 12 Apr 2017 01:29:05 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id v3C1T4Dw029427 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 12 Apr 2017 01:29:04 GMT Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id v3C1T4DL012796; Wed, 12 Apr 2017 01:29:04 GMT Received: from localhost.us.oracle.com (/10.211.47.181) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 11 Apr 2017 18:29:03 -0700 From: Liu Bo To: fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org Subject: [PATCH] fstests: regression test for btrfs dio read repair Date: Tue, 11 Apr 2017 18:27:50 -0700 Message-Id: <1491960470-28789-1-git-send-email-bo.li.liu@oracle.com> X-Mailer: git-send-email 2.5.5 X-Source-IP: userv0021.oracle.com [156.151.31.71] Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This case tests whether dio read can repair the bad copy if we have a good copy. Signed-off-by: Liu Bo --- tests/btrfs/140 | 152 ++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/btrfs/140.out | 39 ++++++++++++++ tests/btrfs/group | 1 + 3 files changed, 192 insertions(+) create mode 100755 tests/btrfs/140 create mode 100644 tests/btrfs/140.out diff --git a/tests/btrfs/140 b/tests/btrfs/140 new file mode 100755 index 0000000..db56123 --- /dev/null +++ b/tests/btrfs/140 @@ -0,0 +1,152 @@ +#! /bin/bash +# FS QA Test 140 +# +# Regression test for btrfs DIO read's repair during read. +# +#----------------------------------------------------------------------- +# Copyright (c) 2017 Liu Bo. 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/filter + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here + +# Modify as appropriate. +_supported_fs btrfs +_supported_os Linux +_require_scratch_dev_pool 2 +_require_command "$BTRFS_MAP_LOGICAL_PROG" btrfs-map-logical +_require_command "$FILEFRAG_PROG" filefrag +_require_odirect + +# helpe to convert 'file offset' to btrfs logical offset +FILEFRAG_FILTER=' + if (/blocks? of (\d+) bytes/) { + $blocksize = $1; + next + } + ($ext, $logical, $physical, $length) = + (/^\s*(\d+):\s+(\d+)..\s+\d+:\s+(\d+)..\s+\d+:\s+(\d+):/) + or next; + ($flags) = /.*:\s*(\S*)$/; + print $physical * $blocksize, "#", + $length * $blocksize, "#", + $logical * $blocksize, "#", + $flags, " "' + +# this makes filefrag output script readable by using a perl helper. +# output is one extent per line, with three numbers separated by '#' +# the numbers are: physical, length, logical (all in bytes) +# sample output: "1234#10#5678" -> physical 1234, length 10, logical 5678 +_filter_extents() +{ + tee -a $seqres.full | $PERL_PROG -ne "$FILEFRAG_FILTER" +} + +_check_file_extents() +{ + cmd="filefrag -v $1" + echo "# $cmd" >> $seqres.full + out=`$cmd | _filter_extents` + if [ -z "$out" ]; then + return 1 + fi + echo "after filter: $out" >> $seqres.full + echo $out + return 0 +} + +_check_repair() +{ + filter=${1:-cat} + dmesg | tac | sed -ne "0,\#run fstests $seqnum at $date_time#p" | tac | $filter | grep -q -e "csum failed" + if [ $? -eq 0 ]; then + echo 1 + else + echo 0 + fi +} + +_scratch_dev_pool_get 2 +# step 1, create a raid1 btrfs which contains one 128k file. +echo "step 1......mkfs.btrfs" >>$seqres.full + +mkfs_opts="-d raid1" +_scratch_pool_mkfs $mkfs_opts >>$seqres.full 2>&1 + +_scratch_mount -o nospace_cache + +$XFS_IO_PROG -f -d -c "pwrite -S 0xaa -b 128K 0 128K" "$SCRATCH_MNT/foobar" | _filter_xfs_io + +sync + +# step 2, corrupt the first 64k of one copy (on SCRATCH_DEV which is the first +# one in $SCRATCH_DEV_POOL +echo "step 2......corrupt file extent" >>$seqres.full + +extents=`_check_file_extents $SCRATCH_MNT/foobar` +logical_in_btrfs=`echo ${extents} | cut -d '#' -f 1` +physical_on_scratch=`$BTRFS_MAP_LOGICAL_PROG -l ${logical_in_btrfs} $SCRATCH_DEV | grep "$SCRATCH_DEV" | awk '{print $6}'` + +_scratch_unmount +$XFS_IO_PROG -d -c "pwrite -S 0xbb -b 64K $physical_on_scratch 64K" $SCRATCH_DEV | _filter_xfs_io + +_scratch_mount -o nospace_cache + +# step 3, 128k dio read (this read can repair bad copy) +echo "step 3......repair the bad copy" >>$seqres.full + +# since raid1 consists of two copies, and the following read may read the good +# copy directly, so lets loop 10 times here and discard output that dio reads +# give +for i in `seq 1 10`; do + $XFS_IO_PROG -d -c "pread -b 128K 0 128K" "$SCRATCH_MNT/foobar" > /dev/null + repair=`_check_repair` + if [ $repair -eq 1 ]; then + break + fi +done + +_scratch_unmount + +# check if the repair works +$XFS_IO_PROG -d -c "pread -v -b 512 $physical_on_scratch 512" $SCRATCH_DEV | _filter_xfs_io + +_scratch_dev_pool_put +# success, all done +status=0 +exit diff --git a/tests/btrfs/140.out b/tests/btrfs/140.out new file mode 100644 index 0000000..d8e3856 --- /dev/null +++ b/tests/btrfs/140.out @@ -0,0 +1,39 @@ +QA output created by 140 +wrote 131072/131072 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 244056064 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +0e8c0000: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0010: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0020: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0030: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0040: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0050: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0060: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0070: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0080: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0090: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c00a0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c00b0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c00c0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c00d0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c00e0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c00f0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0100: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0110: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0120: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0130: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0140: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0150: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0160: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0170: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0180: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c0190: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c01a0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c01b0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c01c0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c01d0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c01e0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +0e8c01f0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ +read 512/512 bytes at offset 244056064 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) diff --git a/tests/btrfs/group b/tests/btrfs/group index 9d4b80b..1cb9c98 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -141,3 +141,4 @@ 137 auto quick send 138 auto compress 139 auto qgroup +140 auto quick