3 #-----------------------------------------------------------------------
4 # Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
6 # This program is free software; you can redistribute it and/or
7 # modify it under the terms of the GNU General Public License as
8 # published by the Free Software Foundation.
10 # This program is distributed in the hope that it would be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write the Free Software Foundation,
17 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 #-----------------------------------------------------------------------
23 # test end of log overwrite bug #796141
31 # create a new FS, mostly fill the log. Then wrap the log back to the
32 # start bit by bit to force wiping of stale blocks near the end of the
33 # log. Check the block after the log ends to check for corruption
36 # - given we're only touching a single inode, the block after the
37 # log which is in the middle ag should never be touched.
38 # if it changes, we assume the log is writing over it
42 echo "QA output created by $seq"
48 trap "_cleanup; exit \$status" 0 1 2 3 15
55 umount $SCRATCH_MNT 2>/dev/null
60 sed -e 's/[0-9][0-9]*\.\.[0-9][0-9]*/BLOCKRANGE/g'
65 echo "*** reset partition"
66 $here/src/devzero -b 2048 -n 50 -v 198 $SCRATCH_DEV
68 force_opts="-dsize=50m -lsize=$log_size"
69 echo mkfs_xfs $force_opts $SCRATCH_DEV >>$seq.full
70 _scratch_mkfs_xfs $force_opts >$tmp.mkfs0 2>&1
72 _notrun "Cannot mkfs for this test using MKFS_OPTIONS specified"
73 _filter_mkfs <$tmp.mkfs0 >/dev/null 2>$tmp.mkfs
75 [ $logsunit -ne 0 ] && \
76 _notrun "Cannot run this test using log MKFS_OPTIONS specified"
82 echo "*** generate log traffic"
84 out=$SCRATCH_MNT/$$.tmp
89 echo "failed to mount $SCRATCH_DEV"
93 # having any quota enabled (acct/enfd) means extra log traffic - evil!
94 $here/src/feature -U $SCRATCH_DEV && \
95 _notrun "UQuota are enabled, test needs controlled log traffic"
96 $here/src/feature -G $SCRATCH_DEV && \
97 _notrun "GQuota are enabled, test needs controlled log traffic"
98 $here/src/feature -P $SCRATCH_DEV && \
99 _notrun "PQuota are enabled, test needs controlled log traffic"
102 while [ $count -ge 0 ]
106 let "count = count - 1"
110 if ! umount $SCRATCH_DEV
112 echo "failed to unmount $SCRATCH_DEV"
119 _scratch_xfs_logprint -tb | $AWK_PROG '
120 /log file: / || /log device: / { print $7}
126 _scratch_xfs_logprint -tb | $AWK_PROG '
131 # Get log stripe unit for v2 logs; if none specified,
132 # (or v1 log) just return "1" block
136 if [ ${lsunit:-0} -eq 0 ]; then
139 expr $lsunit \* $dbsize
145 xfs_db -r $1 -c "sb" -c "print" | $AWK_PROG '
146 /logstart/ { logstart = $3 }
147 /logblocks/ { logblocks = $3 }
149 print logstart + logblocks
157 echo "*** check for corruption"
158 echo "expect $f..." >>$seq.full
159 xfs_db -r -c "fsblock $2" -c "print" $1 | head | tee -a $seq.full | \
160 grep -q -v "$f $f $f $f $f $f $f $f" && \
161 _fail "!!! block $2 corrupted!"
164 # get standard environment, filters and checks
168 # real QA test starts here
176 log_size_bb=`expr $log_size / 512`
181 block=`_after_log $SCRATCH_DEV`
182 echo "fsblock after log = $block" >>$seq.full
183 _check_corrupt $SCRATCH_DEV $block
185 actual_log_size=`_log_size`
186 echo "log size = $actual_log_size BB" >>$seq.full
188 echo "log position = $head" >>$seq.full
190 echo "log sunit = $lsunit" >>$seq.full
193 [ $actual_log_size -eq $log_size_bb ] || \
194 _fail "!!! unexpected log size $size"
195 [ $head -eq 2 -o $head -eq $((lsunit/512)) ] || \
196 _fail "!!! unexpected initial log position $head vs. $((lsunit/512))"
198 # find how how many blocks per op for 100 ops
199 # ignore the fact that it will also include an unmount record etc...
200 # this should be small overall
201 echo " lots of traffic for sampling" >>$seq.full
203 _log_traffic $sample_size_ops
205 num_blocks=`expr $head1 - $head`
206 blocks_per_op=`echo "scale=3; $num_blocks / $sample_size_ops" | bc`
207 echo "blocks_per_op = $blocks_per_op" >>$seq.full
208 num_expected_ops=`echo "$log_size_bb / $blocks_per_op" | bc`
209 echo "num_expected_ops = $num_expected_ops" >>$seq.full
210 num_expected_to_go=`echo "$num_expected_ops - $sample_size_ops" | bc`
211 echo "num_expected_to_go = $num_expected_to_go" >>$seq.full
213 echo " lots more traffic" >>$seq.full
214 _log_traffic $num_expected_to_go
216 echo "log position = $head" >>$seq.full
219 near_end_min=`echo "0.95 * $log_size_bb" | bc | sed 's/\..*//'`
220 echo "near_end_min = $near_end_min" >>$seq.full
222 [ $head -gt $near_end_min -a $head -lt $log_size_bb ] || \
223 _fail "!!! unexpected near end log position $head"
227 echo " little traffic" >>$seq.full
230 echo "log position = $head" >>$seq.full
231 _check_corrupt $SCRATCH_DEV $block
234 [ $head -lt 1000 ] || \
235 _fail "!!! unexpected wrapped log position $head"