| #! /bin/bash |
| # FS QA Test 096 |
| # |
| # Exercise the situation that cause ext4 to BUG_ON() when we use |
| # zero range to zero a range which starts within the isize but ends |
| # past the isize but still in the same block. This particular problem |
| # has only been seen on systems with page_size > block_size. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2015 Red Hat, Inc., Lukas Czerner <lczerner@redhat.com> |
| # |
| # 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/$$ |
| status=1 # failure is the default! |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| _cleanup() |
| { |
| cd / |
| rm -f $tmp.* |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| |
| # real QA test starts here |
| _supported_fs generic |
| _supported_os Linux |
| _require_scratch |
| _require_xfs_io_command "fzero" |
| |
| rm -f $seqres.full |
| echo "Silence is golden" |
| |
| # Use smaller scratch fs to shorten the test time |
| _scratch_mkfs_sized $((512 * 1024 * 1024)) >>$seqres.full 2>&1 |
| _scratch_mount |
| |
| testfile=$SCRATCH_MNT/$seq.$$ |
| $XFS_IO_PROG -f -c "pwrite 4096 512" -c "fzero 4351 512" $testfile >> $seqres.full 2>&1 |
| |
| # success, all done |
| status=0 |
| exit |