| #! /bin/bash |
| # FS QA Test No. 002 |
| # |
| # Test that garbage in old v4 superblocks doesn't trip verifiers during growfs |
| # |
| # Older kernels sometimes left garbage in the unused portions |
| # of the superblock during growfs; with the new verifiers this initially |
| # caused failures during a subsequent growfs; see |
| # 10e6e65 xfs: be more forgiving of a v4 secondary sb w/ junk in v5 fields |
| # for further explanation. (NB: while the commit log was good, the |
| # patch had a bug which was subsequently fixed) |
| # |
| #----------------------------------------------------------------------- |
| # 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.* |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| |
| # Modify as appropriate. |
| _supported_fs xfs |
| _supported_os Linux |
| _require_scratch_nocheck |
| _require_no_large_scratch_dev |
| |
| # So we can explicitly turn it _off_: |
| _require_xfs_mkfs_crc |
| |
| rm -f $seqres.full |
| |
| _scratch_mkfs_xfs -m crc=0 -d size=128m >> $seqres.full 2>&1 || _fail "mkfs failed" |
| |
| # Scribble past a couple V4 secondary superblocks to populate sb_crc |
| # (We can't write to the structure member because it doesn't exist |
| # on a v4 superblock, so we use the data type & "write fill") |
| _scratch_xfs_db -x -c "sb 1" -c "type data" -c "write fill 0xff 224 4" |
| _scratch_xfs_db -x -c "sb 2" -c "type data" -c "write fill 0xff 224 4" |
| |
| _scratch_mount |
| |
| # This should pass |
| $XFS_GROWFS_PROG $SCRATCH_MNT >> $seqres.full 2>&1 || _fail "growfs failed" |
| |
| # success, all done |
| status=0 |
| exit |