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|
#! /bin/sh
# FS QA Test No. 016
#
# test end of log overwrite bug #796141
#
#-----------------------------------------------------------------------
# Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of version 2 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.
#
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like. Any license provided herein, whether implied or
# otherwise, applies only to this software file. Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write the Free Software Foundation, Inc., 59
# Temple Place - Suite 330, Boston MA 02111-1307, USA.
#
# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
# Mountain View, CA 94043, or:
#
# http://www.sgi.com
#
# For further information regarding this notice, see:
#
# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
#-----------------------------------------------------------------------
#
# creator
owner=dxm@sgi.com
#
# pv 796141
#
# create a new FS, mostly fill the log. Then wrap the log back to the
# start bit by bit to force wiping of stale blocks near the end of the
# log. Check the block after the log ends to check for corruption
#
# assumptions :
# - given we're only touching a single inode, the block after the
# log which is in the middle ag should never be touched.
# if it changes, we assume the log is writing over it
#
seq=`basename $0`
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=1
trap "_cleanup; exit \$status" 0 1 2 3 15
_cleanup()
{
cd /
rm -f $tmp.*
echo "*** unmount"
umount $SCRATCH_MNT 2>/dev/null
}
_block_filter()
{
sed -e 's/[0-9][0-9]*\.\.[0-9][0-9]*/BLOCKRANGE/g'
}
_init()
{
echo "*** reset partition"
$here/src/devzero -b 2048 -n 50 -v 198 $SCRATCH_DEV
echo "*** mkfs"
force_opts="-dsize=50m -lsize=2097152"
echo mkfs_xfs $force_opts $SCRATCH_DEV >>$seq.full
_scratch_mkfs_xfs $force_opts >$tmp.mkfs0 2>&1
[ $? -ne 0 ] && \
_notrun "Cannot mkfs for this test using MKFS_OPTIONS specified"
_filter_mkfs <$tmp.mkfs0 >/dev/null 2>$tmp.mkfs
. $tmp.mkfs
}
_log_traffic()
{
count=$1
echo "*** generate log traffic"
out=$SCRATCH_MNT/$$.tmp
echo " *** mount"
if ! _scratch_mount
then
echo "failed to mount $SCRATCH_DEV"
exit 1
fi
# having any quota enabled (acct/enfd) means extra log traffic - evil!
$here/src/feature -U $SCRATCH_DEV && \
_notrun "Quota are enabled, test needs controlled log traffic"
$here/src/feature -G $SCRATCH_DEV && \
_notrun "Quota are enabled, test needs controlled log traffic"
echo " *** fiddle"
while [ $count -ge 0 ]
do
touch $out
rm $out
let "count = count - 1"
done
echo " *** unmount"
if ! umount $SCRATCH_DEV
then
echo "failed to unmount $SCRATCH_DEV"
exit 1
fi
}
_log_size()
{
_scratch_xfs_logprint -tb | $AWK_PROG '
/log file: / || /log device: / { print $7}
'
}
_log_head()
{
_scratch_xfs_logprint -tb | $AWK_PROG '
/head:/ { print $5 }
'
}
# Get log stripe unit for v2 logs; if none specified,
# (or v1 log) just return "1" block
_log_sunit()
{
if [ ${lsunit:-0} -eq 0 ]; then
echo $dbsize
else
expr $lsunit \* $dbsize
fi
}
_after_log()
{
xfs_db -r $1 -c "sb" -c "print" | $AWK_PROG '
/logstart/ { logstart = $3 }
/logblocks/ { logblocks = $3 }
END {
print logstart + logblocks
}
'
}
_check_corrupt()
{
f="c6c6c6c6"
echo "*** check for corruption"
echo "expect $f..." >>$seq.full
xfs_db -r -c "fsblock $2" -c "print" $1 | head | tee -a $seq.full | \
grep -q -v "$f $f $f $f $f $f $f $f" && \
_fail "!!! block $2 corrupted!"
}
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
# real QA test starts here
_supported_fs xfs
_supported_os Linux
rm -f $seq.full
_require_scratch
_init
block=`_after_log $SCRATCH_DEV`
echo "fsblock after log = $block" >>$seq.full
_check_corrupt $SCRATCH_DEV $block
size=`_log_size`
echo "log size = $size BB" >>$seq.full
head=`_log_head`
echo "log position = $head" >>$seq.full
lsunit=`_log_sunit`
echo "log sunit = $lsunit" >>$seq.full
[ $size -eq 4096 ] || \
_fail "!!! unexpected log size $size"
[ $head -eq 2 -o $head -eq $((lsunit/512)) ] || \
_fail "!!! unexpected initial log position $head vs. $((lsunit/512))"
echo " lots of traffic" >>$seq.full
_log_traffic 850
head=`_log_head`
echo "log position = $head" >>$seq.full
[ $head -gt 3850 -a $head -lt 4050 ] || \
_fail "!!! unexpected log position $head"
for c in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
do
echo " little traffic" >>$seq.full
_log_traffic 2
head=`_log_head`
echo "log position = $head" >>$seq.full
_check_corrupt $SCRATCH_DEV $block
done
[ $head -lt 1000 ] || \
_fail "!!! unexpected log position $head"
# success, all done
status=0
exit
|
