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#!/usr/bin/env bash
# Copyright (C) 2017 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA2110-1301 USA
SKIP_WITH_LVMPOLLD=1
. lib/inittest
# Test reshaping under io load
which md5sum || skip
which mkfs.ext4 || skip
aux have_raid 1 14 || skip
mount_dir="mnt"
cleanup_mounted_and_teardown()
{
umount "$mount_dir" || true
aux teardown
}
checksum_()
{
md5sum "$1" | cut -f1 -d' '
}
aux prepare_pvs 16 32
get_devs
vgcreate $SHARED -s 1M "$vg" "${DEVICES[@]}"
trap 'cleanup_mounted_and_teardown' EXIT
# Create 10-way striped raid5 (11 legs total)
lvcreate --yes --type raid5_ls --stripesize 64K --stripes 10 -L4 -n$lv1 $vg
check lv_first_seg_field $vg/$lv1 segtype "raid5_ls"
check lv_first_seg_field $vg/$lv1 stripesize "64.00k"
check lv_first_seg_field $vg/$lv1 data_stripes 10
check lv_first_seg_field $vg/$lv1 stripes 11
wipefs -a "$DM_DEV_DIR/$vg/$lv1"
mkfs -t ext4 "$DM_DEV_DIR/$vg/$lv1"
mkdir -p "$mount_dir"
mount "$DM_DEV_DIR/$vg/$lv1" "$mount_dir"
echo 3 >/proc/sys/vm/drop_caches
# FIXME: This is filling up ram disk. Use sane amount of data please! Rate limit the data written!
dd if=/dev/urandom of="$mount_dir/random" bs=1M count=4 conv=fdatasync
checksum_ "$mount_dir/random" >MD5
# FIXME: wait_for_sync - is this really testing anything under load?
aux wait_for_sync $vg $lv1
aux delay_dev "$dev2" 0 200
# Reshape it to 15 data stripes
lvconvert --yes --stripes 15 $vg/$lv1
check lv_first_seg_field $vg/$lv1 segtype "raid5_ls"
check lv_first_seg_field $vg/$lv1 stripesize "64.00k"
check lv_first_seg_field $vg/$lv1 data_stripes 15
check lv_first_seg_field $vg/$lv1 stripes 16
# Reload table during reshape to test for data corruption
case "$(uname -r)" in
5.[89]*|5.1[012].*|3.10.0-862*|4.18.0-*.el8*)
should not echo "Skipping table reload test on on unfixed kernel!!!" ;;
*)
for i in {0..5}
do
dmsetup table $vg-$lv1|dmsetup load $vg-$lv1
dmsetup suspend --noflush $vg-$lv1
dmsetup resume $vg-$lv1
sleep 0.3
done
esac
aux delay_dev "$dev2" 0
kill -9 %% || true
wait
checksum_ "$mount_dir/random" >MD5_new
umount "$mount_dir"
fsck -fn "$DM_DEV_DIR/$vg/$lv1"
# Compare checksum is matching
cat MD5 MD5_new
diff MD5 MD5_new
vgremove -ff $vg
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