| #! /bin/bash |
| # FS QA Test No. 311 |
| # |
| # Run various fsync tests with dm flakey in freeze() mode and non freeze() |
| # mode. The idea is that we do random writes and randomly fsync and verify that |
| # after a fsync() followed by a freeze()+failure or just failure that the file |
| # is correct. We remount the file system after the failure so that the file |
| # system can do whatever cleanup it needs to and md5sum the file to make sure |
| # it matches hat it was before the failure. We also fsck to make sure the file |
| # system is consistent. |
| # |
| # The fsync tester just random writes into prealloc or not, and then fsync()s |
| # randomly or sync()'s randomly and then fsync()'s before exit. There are a few |
| # tests that were handcrafted to reproduce bugs in btrfs, so it's also a |
| # regression test of sorts. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2013 Fusion IO. 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` |
| status=1 # failure is the default! |
| |
| _cleanup() |
| { |
| _cleanup_flakey |
| } |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| . ./common/dmflakey |
| |
| # real QA test starts here |
| _supported_fs generic |
| _supported_os Linux |
| _require_scratch_nocheck |
| _require_odirect |
| _require_dm_target flakey |
| |
| # xfs_io is not required for this test, but it's the best way to verify |
| # the test system supports fallocate() for allocation |
| _require_xfs_io_command "falloc" |
| |
| _require_test_program "fsync-tester" |
| |
| rm -f $seqres.full |
| SEED=1 |
| testfile=$SCRATCH_MNT/$seq.fsync |
| |
| _run_test() |
| { |
| # _run_test <testnum> <0 - buffered | 1 - O_DIRECT> |
| test_num=$1 |
| |
| direct_opt="" |
| [ $2 -eq 1 ] && direct_opt="-d" |
| |
| $here/src/fsync-tester -s $SEED -t $test_num $direct_opt $testfile |
| [ $? -ne 0 ] && _fatal "fsync tester exited abnormally" |
| |
| _md5_checksum $testfile |
| _load_flakey_table $FLAKEY_DROP_WRITES $lockfs |
| _unmount_flakey |
| |
| #Ok mount so that any recovery that needs to happen is done |
| _load_flakey_table $FLAKEY_ALLOW_WRITES |
| _mount_flakey |
| _md5_checksum $testfile |
| |
| #Unmount and fsck to make sure we got a valid fs after replay |
| _unmount_flakey |
| _check_scratch_fs $FLAKEY_DEV |
| [ $? -ne 0 ] && _fatal "fsck failed" |
| |
| _mount_flakey |
| } |
| |
| _scratch_mkfs >> $seqres.full 2>&1 |
| _require_metadata_journaling $SCRATCH_DEV |
| |
| # Create a basic flakey device that will never error out |
| _init_flakey |
| _mount_flakey |
| |
| buffered=0 |
| direct=1 |
| |
| for i in $(seq 1 20); do |
| lockfs=1 |
| SEED=$i |
| echo "Running test $i buffered, normal suspend" |
| _run_test $i $buffered |
| echo "Running test $i direct, normal suspend" |
| _run_test $i $direct |
| |
| lockfs=0 |
| echo "Running test $i buffered, nolockfs" |
| _run_test $i $buffered |
| echo "Running test $i direct, nolockfs" |
| _run_test $i $direct |
| done |
| |
| status=0 |
| exit |