#! /bin/bash
-# FS QA Test No. 081
-#
-# Test I/O error path by fully filling an dm snapshot.
-#
-#-----------------------------------------------------------------------
+# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015 Red Hat Inc. 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.
+# FS QA Test No. 081
#
-# 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
-#-----------------------------------------------------------------------
+# Test I/O error path by fully filling an dm snapshot.
#
+. ./common/preamble
+_begin_fstest auto quick
-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
-
+# Override the default cleanup function.
_cleanup()
{
+ local pv_ret
cd /
rm -f $tmp.*
- # lvm may have umounted it on I/O error, but in case it does not
- $UMOUNT_PROG $mnt >/dev/null 2>&1
- $LVM_PROG vgremove -f $vgname >>$seqres.full 2>&1
- $LVM_PROG pvremove -f $SCRATCH_DEV >>$seqres.full 2>&1
+
+ # Tear down the lvm vg and snapshot.
+ #
+ # NOTE: We do the unmount and {vg,pv}remove in a loop here because
+ # dmeventd could be configured to unmount the filesystem automatically
+ # after the IO errors. That is racy with the umount we're trying to do
+ # here because there's a window in which the directory tree has been
+ # removed from the mount namespaces (so the umount call here sees no
+ # mount and exits) but the filesystem hasn't yet released the block
+ # device, which causes the vgremove here to fail.
+ #
+ # We "solve" the race by repeating the umount/lvm teardown until the
+ # block device goes away, because we cannot exit this test without
+ # removing the lvm devices from the scratch device -- this will cause
+ # other tests to fail.
+ while test -e /dev/mapper/$vgname-$snapname || \
+ test -e /dev/mapper/$vgname-$lvname; do
+ $UMOUNT_PROG $mnt >> $seqres.full 2>&1
+ $LVM_PROG lvremove -f $vgname/$snapname >>$seqres.full 2>&1
+ $LVM_PROG lvremove -f $vgname/$lvname >>$seqres.full 2>&1
+ $LVM_PROG vgremove -f $vgname >>$seqres.full 2>&1
+ $LVM_PROG pvremove -f $SCRATCH_DEV >>$seqres.full 2>&1
+ pv_ret=$?
+ $UDEV_SETTLE_PROG
+ test $pv_ret -eq 0 && break
+ sleep 2
+ done
}
-# get standard environment, filters and checks
-. ./common/rc
+# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs generic
-_supported_os Linux
_require_test
-_require_scratch_nocheck
+_require_scratch_nolvm
_require_dm_target snapshot
_require_command $LVM_PROG lvm
echo "Silence is golden"
-rm -f $seqres.full
vgname=vg_$seq
lvname=base_$seq
# lvm uses some space for metadata
_scratch_mkfs_sized $((300 * 1024 * 1024)) >>$seqres.full 2>&1
$LVM_PROG vgcreate -f $vgname $SCRATCH_DEV >>$seqres.full 2>&1
-$LVM_PROG lvcreate --yes -L 256M -n $lvname $vgname >>$seqres.full 2>&1
+# We use yes pipe instead of 'lvcreate --yes' because old version of lvm
+# (like 2.02.95 in RHEL6) don't support --yes option
+yes | $LVM_PROG lvcreate -L 256M -n $lvname $vgname >>$seqres.full 2>&1
# wait for lvcreation to fully complete
$UDEV_SETTLE_PROG >>$seqres.full 2>&1
projects / xfstests-dev.git / blobdiff