4 # exercise xfs_repair repairing broken filesystems
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42 echo "QA output created by $seq"
46 status=1 # failure is the default!
50 umount $SCRATCH_DEV 2>/dev/null
54 trap "_cleanup; exit \$status" 0 1 2 3 15
56 # get standard environment, filters and checks
61 # nuke the superblock, AGI, AGF, AGFL; then try repair the damage
65 for structure in 'sb 0' 'agf 0' 'agi 0' 'agfl 0'
67 echo "Corrupting $structure - setting bits to $1"
68 _check_repair $1 "$structure"
72 # real QA test starts here
78 # first we need to ensure there are no bogus secondary
79 # superblocks between the primary and first secondary
80 # superblock (hanging around from earlier tests)...
83 _scratch_mkfs_xfs $DSIZE >/dev/null 2>&1
84 if [ $? -ne 0 ] # probably don't have a big enough scratch
86 _notrun "SCRATCH_DEV too small, results would be non-deterministic"
89 src/feature -U $SCRATCH_DEV && \
90 _notrun "Quota are enabled, test needs controlled sb recovery"
91 src/feature -G $SCRATCH_DEV && \
92 _notrun "Quota are enabled, test needs controlled sb recovery"
96 eval `xfs_db -r -c "sb 1" -c stack $SCRATCH_DEV | perl -ne '
97 if (/byte offset (\d+), length (\d+)/) {
98 print "clear=", $1 / 512, "\n"; exit
100 [ -z "$clear" ] && echo "Cannot calculate length to clear"
101 src/devzero -v -1 -n "$clear" $SCRATCH_DEV >/dev/null
103 # now kick off the real repair test...
105 _scratch_mkfs_xfs $DSIZE | _filter_mkfs 2>$tmp.mkfs