| #! /bin/bash |
| # FS QA Test 115 |
| # |
| # Check if the filesystem will lockup when trying to allocate a new inode in |
| # an AG with no free inodes but with a corrupted agi->freecount showing free inodes. |
| # |
| # At the end of the test, the scratch device will purposely be in a corrupted |
| # state, so there is no need for checking that. |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2017 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 |
| |
| # remove previous $seqres.full before test |
| rm -f $seqres.full |
| |
| # real QA test starts here |
| |
| # Modify as appropriate. |
| _supported_fs generic |
| _supported_os Linux |
| _require_scratch_nocheck |
| # We corrupt XFS on purpose, and check if assert failures would crash system. |
| _require_no_xfs_bug_on_assert |
| _disable_dmesg_check |
| |
| # Make sure we disable finobt if the filesystem supports it, otherwise, just |
| # initialize it with default options. |
| _scratch_mkfs | grep -q "finobt=1" && _scratch_mkfs -m "finobt=0" >/dev/null 2>&1 |
| |
| # Get the amount of free inodes from the AGI 0, so we can fill up the freecount |
| # structure. |
| freecount=`_scratch_xfs_db -c "agi 0" -c "p freecount" | cut -d' ' -f 3` |
| |
| _scratch_mount |
| |
| # At the end of filesystem's initialization, AG 0 will have $freecount free |
| # inodes in the agi->freecount, create $freecount extra dummy files to fill it. |
| for i in `seq 1 $freecount`; do |
| touch $SCRATCH_MNT/dummy_file$i |
| done |
| |
| _scratch_unmount |
| |
| # agi->freecount is 0 here, corrupt it to show extra free inodes |
| _scratch_xfs_db -x -c "agi 0" -c "write freecount 10" >> $seqres.full 2>&1 |
| |
| _scratch_mount |
| |
| # Lock up a buggy kernel |
| touch $SCRATCH_MNT/lockupfile >> $seqres.full 2>&1 |
| |
| # If we reach this point, the filesystem is fixed |
| echo "Silence is golden" |
| status=0 |
| exit |