4 # test end of log overwrite bug #796141
6 #-----------------------------------------------------------------------
7 # Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
9 # This program is free software; you can redistribute it and/or
10 # modify it under the terms of the GNU General Public License as
11 # published by the Free Software Foundation.
13 # This program is distributed in the hope that it would be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write the Free Software Foundation,
20 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #-----------------------------------------------------------------------
28 # create a new FS, mostly fill the log. Then wrap the log back to the
29 # start bit by bit to force wiping of stale blocks near the end of the
30 # log. Check the block after the log ends to check for corruption
33 # - given we're only touching a single inode, the block after the
34 # log which is in the middle ag should never be touched.
35 # if it changes, we assume the log is writing over it
39 echo "QA output created by $seq"
45 trap "_cleanup; exit \$status" 0 1 2 3 15
52 umount $SCRATCH_MNT 2>/dev/null
57 sed -e 's/[0-9][0-9]*\.\.[0-9][0-9]*/BLOCKRANGE/g'
62 echo "*** reset partition"
63 $here/src/devzero -b 2048 -n 50 -v 198 $SCRATCH_DEV
65 force_opts="-dsize=50m -lsize=$log_size"
67 # Do not discard blocks as we check for patterns in free space.
69 # First, make sure that mkfs supports '-K' option by using its
70 # dry run (-N option) and then add it to the force_opts.
72 if _scratch_mkfs_xfs -N -K $force_opts >/dev/null 2>&1; then
73 force_opts="-K $force_opts"
75 echo mkfs_xfs $force_opts $SCRATCH_DEV >>$seq.full
76 _scratch_mkfs_xfs $force_opts >$tmp.mkfs0 2>&1
78 _notrun "Cannot mkfs for this test using MKFS_OPTIONS specified"
79 _filter_mkfs <$tmp.mkfs0 >/dev/null 2>$tmp.mkfs
81 [ $logsunit -ne 0 ] && \
82 _notrun "Cannot run this test using log MKFS_OPTIONS specified"
88 echo "*** generate log traffic"
90 out=$SCRATCH_MNT/$$.tmp
95 echo "failed to mount $SCRATCH_DEV"
99 # having any quota enabled (acct/enfd) means extra log traffic - evil!
100 $here/src/feature -U $SCRATCH_DEV && \
101 _notrun "UQuota are enabled, test needs controlled log traffic"
102 $here/src/feature -G $SCRATCH_DEV && \
103 _notrun "GQuota are enabled, test needs controlled log traffic"
104 $here/src/feature -P $SCRATCH_DEV && \
105 _notrun "PQuota are enabled, test needs controlled log traffic"
108 while [ $count -ge 0 ]
114 let "count = count - 1"
118 if ! umount $SCRATCH_DEV
120 echo "failed to unmount $SCRATCH_DEV"
127 _scratch_xfs_logprint -tb | $AWK_PROG '
128 /log file: / || /log device: / { print $7}
134 _scratch_xfs_logprint -tb | $AWK_PROG '
139 # Get log stripe unit for v2 logs; if none specified,
140 # (or v1 log) just return "1" block
144 if [ ${lsunit:-0} -eq 0 ]; then
147 expr $lsunit \* $dbsize
153 xfs_db -r $1 -c "sb" -c "print" | $AWK_PROG '
154 /logstart/ { logstart = $3 }
155 /logblocks/ { logblocks = $3 }
157 print logstart + logblocks
165 echo "*** check for corruption"
166 echo "expect $f..." >>$seq.full
167 xfs_db -r -c "fsblock $2" -c "print" $1 | head | tee -a $seq.full | \
168 grep -q -v "$f $f $f $f $f $f $f $f" && \
169 _fail "!!! block $2 corrupted!"
172 # get standard environment, filters and checks
176 # real QA test starts here
184 log_size_bb=`expr $log_size / 512`
189 block=`_after_log $SCRATCH_DEV`
190 echo "fsblock after log = $block" >>$seq.full
191 _check_corrupt $SCRATCH_DEV $block
193 actual_log_size=`_log_size`
194 echo "log size = $actual_log_size BB" >>$seq.full
196 echo "log position = $head" >>$seq.full
198 echo "log sunit = $lsunit" >>$seq.full
201 [ $actual_log_size -eq $log_size_bb ] || \
202 _fail "!!! unexpected log size $size"
203 [ $head -eq 2 -o $head -eq $((lsunit/512)) ] || \
204 _fail "!!! unexpected initial log position $head vs. $((lsunit/512))"
206 # find how how many blocks per op for 100 ops
207 # ignore the fact that it will also include an unmount record etc...
208 # this should be small overall
209 echo " lots of traffic for sampling" >>$seq.full
211 _log_traffic $sample_size_ops
213 num_blocks=`expr $head1 - $head`
214 blocks_per_op=`echo "scale=3; $num_blocks / $sample_size_ops" | bc`
215 echo "blocks_per_op = $blocks_per_op" >>$seq.full
216 num_expected_ops=`echo "$log_size_bb / $blocks_per_op" | bc`
217 echo "num_expected_ops = $num_expected_ops" >>$seq.full
218 num_expected_to_go=`echo "$num_expected_ops - $sample_size_ops" | bc`
219 echo "num_expected_to_go = $num_expected_to_go" >>$seq.full
221 echo " lots more traffic" >>$seq.full
222 _log_traffic $num_expected_to_go
224 echo "log position = $head" >>$seq.full
227 near_end_min=`echo "0.95 * $log_size_bb" | bc | sed 's/\..*//'`
228 echo "near_end_min = $near_end_min" >>$seq.full
230 [ $head -gt $near_end_min -a $head -lt $log_size_bb ] || \
231 _fail "!!! unexpected near end log position $head"
235 echo " little traffic" >>$seq.full
238 echo "log position = $head" >>$seq.full
239 _check_corrupt $SCRATCH_DEV $block
242 [ $head -lt 1000 ] || \
243 _fail "!!! unexpected wrapped log position $head"