From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from userp1040.oracle.com ([156.151.31.81]:31160 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751110AbdKMCZd (ORCPT ); Sun, 12 Nov 2017 21:25:33 -0500 From: Anand Jain To: fstests@vger.kernel.org Cc: linux-btrfs@vger.kernel.org Subject: [PATCH] btrfs/154: test for device dynamic rescan Date: Mon, 13 Nov 2017 10:25:41 +0800 Message-Id: <20171113022541.7413-1-anand.jain@oracle.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: Make sure missing device is included in the alloc list when it is scanned on a mounted FS. This test case needs btrfs kernel patch which is in the ML [PATCH] btrfs: handle dynamically reappearing missing device Without the kernel patch, the test will run, but reports as failed, as the device scanned won't appear in the alloc_list. Signed-off-by: Anand Jain --- tests/btrfs/154 | 188 ++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/btrfs/154.out | 10 +++ tests/btrfs/group | 1 + 3 files changed, 199 insertions(+) create mode 100755 tests/btrfs/154 create mode 100644 tests/btrfs/154.out diff --git a/tests/btrfs/154 b/tests/btrfs/154 new file mode 100755 index 000000000000..8b06fc4d9347 --- /dev/null +++ b/tests/btrfs/154 @@ -0,0 +1,188 @@ +#! /bin/bash +# FS QA Test 154 +# +# Test for reappearing missing device functionality. +# This test will fail without the btrfs kernel patch +# [PATCH] btrfs: handle dynamically reappearing missing device +# +#--------------------------------------------------------------------- +# Copyright (c) 2017 Oracle. All Rights Reserved. +# Author: Anand Jain +# +# 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 +. ./common/module + +# remove previous $seqres.full before test +rm -f $seqres.full + +# real QA test starts here + +_supported_fs btrfs +_supported_os Linux +_require_scratch_dev_pool 2 +_test_unmount +_require_loadable_fs_module "btrfs" + +_scratch_dev_pool_get 2 + +DEV1=`echo $SCRATCH_DEV_POOL | awk '{print $1}'` +DEV2=`echo $SCRATCH_DEV_POOL | awk '{print $2}'` + +echo DEV1=$DEV1 >> $seqres.full +echo DEV2=$DEV2 >> $seqres.full + +# Balance won't be successful if filled too much +DEV1_SZ=`blockdev --getsize64 $DEV1` +DEV2_SZ=`blockdev --getsize64 $DEV2` + +# get min +MAX_FS_SZ=`echo -e "$DEV1_SZ\n$DEV2_SZ" | sort | head -1` +# Need disks with more than 2G +if [ $MAX_FS_SZ -lt 2000000000 ]; then + _scratch_dev_pool_put + _test_mount + _notrun "Smallest dev size $MAX_FS_SZ, Need at least 2G" +fi + +MAX_FS_SZ=100000000 +bs="1M" +COUNT=$(($MAX_FS_SZ / 1000000)) +CHECKPOINT1=0 +CHECKPOINT2=0 + +setup() +{ + echo >> $seqres.full + echo "MAX_FS_SZ=$MAX_FS_SZ COUNT=$COUNT" >> $seqres.full + echo "setup" + echo "-----setup-----" >> $seqres.full + _scratch_pool_mkfs "-mraid1 -draid1" >> $seqres.full 2>&1 + _scratch_mount >> $seqres.full 2>&1 + dd if=/dev/urandom of="$SCRATCH_MNT"/tf bs=$bs count=1 \ + >>$seqres.full 2>&1 + _run_btrfs_util_prog filesystem show -m ${SCRATCH_MNT} + _run_btrfs_util_prog filesystem df $SCRATCH_MNT + COUNT=$(( $COUNT - 1 )) + echo "unmount" >> $seqres.full + _scratch_unmount +} + +degrade_mount_write() +{ + echo >> $seqres.full + echo "--degraded mount: max_fs_sz $max_fs_sz bytes--" >> $seqres.full + echo + echo "degraded mount" + + echo "clean btrfs ko" >> $seqres.full + # un-scan the btrfs devices + _reload_fs_module "btrfs" + _mount -o degraded $DEV1 $SCRATCH_MNT >>$seqres.full 2>&1 + cnt=$(( $COUNT/10 )) + dd if=/dev/urandom of="$SCRATCH_MNT"/tf1 bs=$bs count=$cnt \ + >>$seqres.full 2>&1 + COUNT=$(( $COUNT - $cnt )) + _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT + _run_btrfs_util_prog filesystem df $SCRATCH_MNT + CHECKPOINT1=`md5sum $SCRATCH_MNT/tf1` + echo $SCRATCH_MNT/tf1:$CHECKPOINT1 >> $seqres.full 2>&1 +} + +scan_missing_dev_and_write() +{ + echo >> $seqres.full + echo "--scan missing $DEV2--" >> $seqres.full + echo + echo "scan missing dev and write" + + _run_btrfs_util_prog device scan $DEV2 + + echo >> $seqres.full + + _run_btrfs_util_prog filesystem show -m ${SCRATCH_MNT} + _run_btrfs_util_prog filesystem df ${SCRATCH_MNT} + + dd if=/dev/urandom of="$SCRATCH_MNT"/tf2 bs=$bs count=$COUNT \ + >>$seqres.full 2>&1 + CHECKPOINT2=`md5sum $SCRATCH_MNT/tf2` + echo $SCRATCH_MNT/tf2:$CHECKPOINT2 >> $seqres.full 2>&1 +} + +balance_convert() +{ + echo >> $seqres.full + echo "----- run balance -----" >> $seqres.full + echo + echo "run balance" + + _run_btrfs_util_prog bal start --full-balance -dconvert=raid1 \ + -mconvert=raid1 ${SCRATCH_MNT} +} + +verify() +{ + echo >> $seqres.full + echo "--mount reconstructed dev only and check md5sum--" >> $seqres.full + echo + echo "mount reconstructed dev only and check md5sum" + echo "unmount" >> $seqres.full + + _scratch_unmount + _reload_fs_module "btrfs" + _mount -o degraded $DEV2 $SCRATCH_MNT >>$seqres.full 2>&1 + verify_checkpoint1=`md5sum $SCRATCH_MNT/tf1` + verify_checkpoint2=`md5sum $SCRATCH_MNT/tf2` + + if [ "$verify_checkpoint1" != "$CHECKPOINT1" ]; then + echo "checkpoint1 does not match with after scrub" + fi + + if [ "$verify_checkpoint2" != "$CHECKPOINT2" ]; then + echo "checkpoint2 does not match with after scrub" + fi +} + +setup +degrade_mount_write +scan_missing_dev_and_write +balance_convert +verify + +$UMOUNT_PROG $DEV2 +_scratch_dev_pool_put +_test_mount + +status=0 +exit diff --git a/tests/btrfs/154.out b/tests/btrfs/154.out new file mode 100644 index 000000000000..4a4939d448aa --- /dev/null +++ b/tests/btrfs/154.out @@ -0,0 +1,10 @@ +QA output created by 154 +setup + +degraded mount + +scan missing dev and write + +run balance + +mount reconstructed dev only and check md5sum diff --git a/tests/btrfs/group b/tests/btrfs/group index 15c2ecbf553c..c98cf823224e 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -156,3 +156,4 @@ 151 auto quick 152 auto quick metadata qgroup send 153 auto quick qgroup +154 auto quick -- 2.13.1