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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Eric Sandeen
9ef7c4e3dc
xfs/010 wants to write corruption and test how xfs_repair deals, but when: xfs: forbid AG btrees with level == 0 is merged to userspace, this new test fails the write verifier in xfs_db. Add "-c" to allow the corrupted write, do the corruptions all in one xfs_db command (so it doesn't have to re-read the corrupted data on 2nd startup), and filter out the "Allowing write of corrupted data and bad CRC" output from the "write -c" command. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
136 lines
3.3 KiB
Bash
Executable File
136 lines
3.3 KiB
Bash
Executable File
#!/bin/bash
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# FS QA Test No. xfs/010
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#
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# Test xfs_repair of the free inode btree (finobt). Make a couple targeted
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# corruptions and verify that xfs_repair detects and repairs the filesystem to
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# a consistent state.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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#-----------------------------------------------------------------------
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/repair
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_cleanup()
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{
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cd /
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_scratch_unmount 2>/dev/null
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rm -f $tmp.*
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_sparse_inode_populate()
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{
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dir=$1
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count=$2
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for i in $(seq 0 $count)
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do
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touch $dir/$i
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done
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# Inode chunks are allocated 64 inodes at a time. If we remove 1 out of
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# every 32 we allocated above, we'll end up leaving an inode or two free
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# in each chunk. This ensures that most records are inserted into the
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# finobt.
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for i in $(seq 0 32 $count)
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do
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rm -f $dir/$i
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done
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}
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_filter_dbval()
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{
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awk '{ print $3 }'
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}
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_corrupt_finobt_records()
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{
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dev=$1
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# determine the root block of the finobt
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free_root=`$XFS_DB_PROG -c "agi 0" -c "p free_root" $dev |
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_filter_dbval`
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# Corrupt a freecount value. This should never exceed 64.
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$XFS_DB_PROG -x -c "fsb $free_root" -c "type inobt" \
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-c "write recs[1].freecount 70" $dev
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# Create a corrupted non-free record, which should never appear in the
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# finobt.
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$XFS_DB_PROG -x -c "fsb $free_root" -c "type inobt" \
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-c "write recs[2].freecount 0" $dev
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$XFS_DB_PROG -x -c "fsb $free_root" -c "type inobt" \
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-c "write recs[2].free 0" $dev
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}
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_corrupt_finobt_root()
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{
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dev=$1
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# nuke the agi finobt root fields
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$XFS_DB_PROG -x \
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-c "agi 0" \
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-c "write -c free_root 0" \
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-c "write -c free_level 0" \
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$dev | grep -v "Allowing write of corrupted"
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}
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# real QA test starts here
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_supported_fs xfs
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_supported_os Linux
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_require_scratch
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_require_xfs_mkfs_finobt
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_require_xfs_finobt
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rm -f $seqres.full
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_scratch_mkfs_xfs "-m crc=1,finobt=1 -d agcount=2" | _filter_mkfs 2>$seqres.full
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# sparsely populate the fs such that we create records with free inodes
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_scratch_mount
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_sparse_inode_populate $SCRATCH_MNT 999
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_scratch_unmount
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# corrupt some finobt records
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_corrupt_finobt_records $SCRATCH_DEV
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# repair should detect the inconsistencies
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_scratch_xfs_repair 2>&1 | _filter_repair
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_check_scratch_fs
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# nuke the finobt root, repair will have to regenerate from the inobt
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_corrupt_finobt_root $SCRATCH_DEV
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_scratch_xfs_repair 2>&1 | _filter_repair
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status=0
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exit
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