| #! /bin/bash |
| # FS QA Test No. generic/027 |
| # |
| # Run 8 processes writing 1k files to seperate files in seperate dirs to |
| # hit ENOSPC on small fs with little free space. Loop for 100 iterations. |
| # |
| # Regression test for |
| # 34cf865 ext4: fix deadlock when writing in ENOSPC conditions |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2014 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. |
| # |
| # 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.* |
| } |
| |
| create_file() |
| { |
| local dir=$1 |
| local direct=$2 |
| local i=0 |
| |
| mkdir -p $dir >/dev/null 2>&1 |
| while $XFS_IO_PROG -f $direct -c "pwrite 0 1k" $dir/file_$i >/dev/null 2>&1; do |
| let i=$i+1 |
| done |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| |
| # real QA test starts here |
| _supported_fs generic |
| _supported_os Linux |
| |
| _require_scratch |
| |
| rm -f $seqres.full |
| echo "Silence is golden" |
| |
| _scratch_mkfs_sized $((256 * 1024 * 1024)) >>$seqres.full 2>&1 |
| _scratch_mount |
| |
| echo "Reserve 2M space" >>$seqres.full |
| $XFS_IO_PROG -f -c "pwrite 0 2m" $SCRATCH_MNT/testfile >>$seqres.full 2>&1 |
| echo "Fulfill the fs" >>$seqres.full |
| $XFS_IO_PROG -f -c "pwrite 0 254m" $SCRATCH_MNT/bigfile >>$seqres.full 2>&1 |
| echo "Remove reserved file" >>$seqres.full |
| rm -f $SCRATCH_MNT/testfile |
| |
| loop=100 |
| # btrfs takes much longer time, reduce the loop count |
| if [ "$FSTYP" == "btrfs" ]; then |
| loop=10 |
| fi |
| |
| dir=$SCRATCH_MNT/testdir |
| echo -n "iteration" >>$seqres.full |
| i=1 |
| while [ $i -le $loop ]; do |
| echo -n " $i" >>$seqres.full |
| nr_worker=8 |
| while [ $nr_worker -gt 0 ]; do |
| # half buffered I/O half direct I/O |
| if [ `expr $nr_worker % 2` -eq 0 ]; then |
| create_file $dir/$nr_worker -d >>$seqres.full & |
| else |
| create_file $dir/$nr_worker >>$seqres.full & |
| fi |
| let nr_worker=$nr_worker-1 |
| done |
| wait |
| rm -rf $dir |
| let i=$i+1 |
| done |
| _scratch_unmount |
| |
| status=0 |
| exit |