This is to reproduce a raid6 reconstruction bug after two drives
getting offline and online via hotplug.
Signed-off-by: James Alandt <James.Alandt@xxxxxxx>
Signed-off-by: Liu Bo <bo.li.liu@xxxxxxxxxx>
---
tests/btrfs/152 | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/group | 1 +
2 files changed, 122 insertions(+)
create mode 100755 tests/btrfs/152
diff --git a/tests/btrfs/152 b/tests/btrfs/152
new file mode 100755
index 0000000..2b3d98c
--- /dev/null
+++ b/tests/btrfs/152
@@ -0,0 +1,121 @@
+#! /bin/bash
+# FS QA Test 152
+#
+# This test is to reproduce a bug of btrfs raid6 reconstruction.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2017 Oracle. All Rights Reserved.
+# Author: Liu Bo <bo.li.liu@xxxxxxxxxx>
+#
+# 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.*
+ if [ $removed == 1 ]; then
+ _scratch_umount
+ _devmgt_add ${disk1_remove}
+ _devmgt_add ${disk2_remove}
+ fi
+}
+
+# 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
+_require_scratch_nocheck
+_require_scratch_dev_pool 5
+_require_deletable_scratch_dev_pool
+
+# umount test so that we can unload btrfs module
+_test_unmount
+_require_btrfs_loadable
+
+_scratch_dev_pool_get 5
+
+devs=( $SCRATCH_DEV_POOL )
+n=${#devs[@]}
+
+mkfs_opts="-draid6 -mraid6 -n64K -b 1G"
+_scratch_pool_mkfs $mkfs_opts >> $seqres.full 2>&1
+
+_scratch_mount -o nospace_cache
+
+# 1st 4k write
+$XFS_IO_PROG -f -c "pwrite -W 0 4K" $SCRATCH_MNT/f1 | _filter_xfs_io
+sync
+
+# hotplug disk1
+disk1=${devs[$((n-1))]}
+disk1_short=`_short_dev ${disk1}`
+disk1_remove=`readlink -f /sys/block/${disk1_short} | rev | cut -d "/" -f 3 | rev`
+_devmgt_remove ${disk1_remove} $disk1_short
+removed=1
+
+# 2nd 4K write
+$XFS_IO_PROG -f -c "pwrite -W 0 4K" $SCRATCH_MNT/f2 | _filter_xfs_io
+sync
+
+# hotplug disk2
+disk2=${devs[$((n-2))]}
+disk2_short=`_short_dev ${disk2}`
+disk2_remove=`readlink -f /sys/block/${disk2_short} | rev | cut -d "/" -f 3 | rev`
+_devmgt_remove ${disk2_remove} $disk2_short
+removed=1
+
+# 3rd 4K write
+$XFS_IO_PROG -f -c "pwrite -W 0 4K" $SCRATCH_MNT/f3 | _filter_xfs_io
+sync
+
+_scratch_unmount
+
+# bring disk1 & disk2 online
+_devmgt_add ${disk1_remove}
+_devmgt_add ${disk2_remove}
+removed=0
+
+# reload the module to simulate 'reboot'
+_reload_btrfs_ko
+
+# have every disk available for btrfs
+btrfs dev scan
+
+_scratch_mount -onospace_cache,degraded || _fail "mount -onospace_cache,degraded failed"
+
+_scratch_dev_pool_put
+
+# success, all done
+status=0
+exit
diff --git a/tests/btrfs/group b/tests/btrfs/group
index a7ff7b0..1dbb66f 100644
--- a/tests/btrfs/group
+++ b/tests/btrfs/group
@@ -154,3 +154,4 @@
149 auto quick send compress
150 auto quick dangerous
151 auto quick
+152 auto quick
--
2.5.0
--
To unsubscribe from this list: send the line "unsubscribe fstests" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
