200 lines
7.6 KiB
Bash
200 lines
7.6 KiB
Bash
|
#!/bin/sh
|
||
|
|
||
|
# This test set tests the some of the basic functionality of the Faulty Block
|
||
|
# Device driver. It takes a writable device as input - a small (sub)partition
|
||
|
# suffices for this purpose. All information on the given device WILL BE LOST,
|
||
|
# so USE AT YOUR OWN RISK.
|
||
|
#
|
||
|
# Currently, a reasonable subset of supported read and write fault injection is
|
||
|
# tested. Since injection of write faults was the original goal for this
|
||
|
# driver, the test set for this part of FBD functionality is relatively large.
|
||
|
#
|
||
|
# Testing of read faults works as follows. First, a known pattern is written to
|
||
|
# the actual device. Then FBD is loaded as an overlay over the device. A fault
|
||
|
# injection rule is set on FBD, and the disk pattern is read back from the FBD
|
||
|
# device (/dev/fbd). FBD is then unloaded. The test succeeds if the pattern
|
||
|
# that was read back, matches a certain expected pattern.
|
||
|
#
|
||
|
# Testing of write faults works as follows. First, a known pattern is written
|
||
|
# to the actual device. Then FBD is loaded as an overlay over the device. A
|
||
|
# fault injection rule is set on FBD, and another pattern is written to the FBD
|
||
|
# device (/dev/fbd). FBD is unloaded, and the resulting disk pattern is read
|
||
|
# back from the actual device. This resulting pattern should match a certain
|
||
|
# expected pattern.
|
||
|
#
|
||
|
# Since all raw block I/O requests go through the root file server, this test
|
||
|
# set heavily depends on the behavior of that root file server. It has been
|
||
|
# tested with MFS, and may not work with any other file server type. It assumes
|
||
|
# that a 4K block size is used, and that the file server translates raw block
|
||
|
# requests to aligned 4K-multiples. The test set also makes assumptions about
|
||
|
# merging pages in write operations, flushing only upon a sync call, etcetera.
|
||
|
# Unfortunately, this dependency on the root file server precludes the test set
|
||
|
# from properly exercising all possible options of FBD.
|
||
|
|
||
|
RWBLOCKS=./rwblocks
|
||
|
|
||
|
devtopair() {
|
||
|
label=`awk "/^$(stat -f '%Hr' $1) / "'{print $2}' /proc/dmap`
|
||
|
if [ ! -z "$label" ]; then echo "label=$label,minor=`stat -f '%Lr' $1`"; fi
|
||
|
}
|
||
|
|
||
|
if [ ! -b "$1" ]; then
|
||
|
echo "usage: $0 device" >&2
|
||
|
exit 1
|
||
|
fi
|
||
|
|
||
|
PAIR=$(devtopair $1)
|
||
|
if [ -z "$PAIR" ]; then
|
||
|
echo "driver not found for $1" >&2
|
||
|
exit 1
|
||
|
fi
|
||
|
|
||
|
if [ ! -x $RWBLOCKS ]; then
|
||
|
make || exit 1
|
||
|
fi
|
||
|
|
||
|
if [ "`stat -f '%k' /`" != "4096" ]; then
|
||
|
echo "The root file system is not using a 4K block size." >&2
|
||
|
exit 1
|
||
|
fi
|
||
|
|
||
|
read -p "This will overwrite the contents of $1. Are you sure? [y/N] " RESP
|
||
|
case $RESP in
|
||
|
[yY]*)
|
||
|
;;
|
||
|
*)
|
||
|
echo "Hmpf. Okay. Aborting test.."
|
||
|
exit 0
|
||
|
esac
|
||
|
|
||
|
DEV="$1"
|
||
|
LAST=
|
||
|
SUCCESS=0
|
||
|
TOTAL=0
|
||
|
|
||
|
read_test() {
|
||
|
OPT=
|
||
|
if [ "$1" = "-last" -o "$1" = "-notlast" ]; then
|
||
|
OPT=$1
|
||
|
shift
|
||
|
fi
|
||
|
PAT=$1
|
||
|
EXP=$2
|
||
|
shift 2
|
||
|
$RWBLOCKS $DEV $PAT
|
||
|
service up /service/fbd -dev /dev/fbd -args "$PAIR" || exit 1
|
||
|
fbdctl add $@ >/dev/null
|
||
|
#fbdctl list
|
||
|
RES="`$RWBLOCKS /dev/fbd`"
|
||
|
service down fbd
|
||
|
echo -n "$RES: "
|
||
|
if echo "$RES" | egrep "^$EXP\$" >/dev/null 2>&1; then
|
||
|
if [ "$OPT" = "-last" -a "$RES" != "$LAST" ]; then
|
||
|
echo FAILURE
|
||
|
elif [ "$OPT" = "-notlast" -a "$RES" = "$LAST" ]; then
|
||
|
echo FAILURE
|
||
|
else
|
||
|
echo SUCCESS
|
||
|
SUCCESS=`expr $SUCCESS + 1`
|
||
|
LAST="$RES"
|
||
|
fi
|
||
|
else
|
||
|
echo FAILURE
|
||
|
fi
|
||
|
TOTAL=`expr $TOTAL + 1`
|
||
|
}
|
||
|
|
||
|
write_test() {
|
||
|
OPT=
|
||
|
if [ "$1" = "-last" -o "$1" = "-notlast" ]; then
|
||
|
OPT=$1
|
||
|
shift
|
||
|
fi
|
||
|
PAT=$1
|
||
|
EXP=$2
|
||
|
WS=$3
|
||
|
shift 3
|
||
|
$RWBLOCKS $DEV UUUUUUUUUUUUUUUU
|
||
|
service up /service/fbd -dev /dev/fbd -args "$PAIR" || exit 1
|
||
|
fbdctl add $@ >/dev/null
|
||
|
#fbdctl list
|
||
|
$RWBLOCKS /dev/fbd $PAT $WS
|
||
|
service down fbd
|
||
|
RES="`$RWBLOCKS $DEV`"
|
||
|
echo -n "$RES: "
|
||
|
if echo "$RES" | egrep "^$EXP\$" >/dev/null 2>&1; then
|
||
|
if [ "$OPT" = "-last" -a "$RES" != "$LAST" ]; then
|
||
|
echo FAILURE
|
||
|
elif [ "$OPT" = "-notlast" -a "$RES" = "$LAST" ]; then
|
||
|
echo FAILURE
|
||
|
else
|
||
|
echo SUCCESS
|
||
|
SUCCESS=`expr $SUCCESS + 1`
|
||
|
LAST="$RES"
|
||
|
fi
|
||
|
else
|
||
|
echo FAILURE
|
||
|
fi
|
||
|
TOTAL=`expr $TOTAL + 1`
|
||
|
}
|
||
|
|
||
|
read_test AAAAAAAAAAAAAAAA A0AAAAAAAAAAAAAA -a 1000-2000 -r corrupt zero
|
||
|
|
||
|
read_test AAAAAAAAAAAAAAAA 'AA[a-z][a-z]AAAAAAAAAAAA' -a 2000-4000 -r corrupt persist
|
||
|
read_test -last AAAAAAAAAAAAAAAA 'AA[a-z][a-z]AAAAAAAAAAAA' -a 2000-4000 -r corrupt persist
|
||
|
|
||
|
read_test AAAAAAAAAAAAAAAA 'AAAAA[a-z][a-z][a-z]AAAAAAAA' -a 5000-8000 -r corrupt random
|
||
|
read_test -notlast AAAAAAAAAAAAAAAA 'AAAAA[a-z][a-z][a-z]AAAAAAAA' -a 5000-8000 -r corrupt random
|
||
|
|
||
|
read_test AAAAAAAAAAAAAAAA 'A[a-z]AAAAAAAAAAAAAA' -a 1100-1200 -r corrupt zero
|
||
|
|
||
|
read_test AAAAAAAAAAAAAAAA 'AA#AAAAAAAAAAAAA' -a 2000-3000 -r error EIO
|
||
|
read_test AAAAAAAAABAAABAA 'AAAAAAAAAB###BAA' -a A800-C800 -r error EIO
|
||
|
|
||
|
read_test ABBBAAAAAAAAAAAA 'ABBB#' -a 4000 -r error OK
|
||
|
|
||
|
write_test AAAAAAAAAAAAAAAA A0AAAAAAAAAAAAAA 512 -a 1000-2000 -w corrupt zero
|
||
|
write_test AAAAAAAAAAAAAAAA A0AAAAAAAAAAAAAA 4096 -a 1000-2000 -w corrupt zero
|
||
|
write_test AAAAAAAAAAAAAAAA A0AAAAAAAAAAAAAA 16384 -a 1000-2000 -w corrupt zero
|
||
|
|
||
|
write_test AAAAAAAAAAAAAAAA 'AA[a-z][a-z]AAAAAAAAAAAA' 512 -a 2000-4000 -w corrupt persist
|
||
|
write_test -last AAAAAAAAAAAAAAAA 'AA[a-z][a-z]AAAAAAAAAAAA' 512 -a 2000-4000 -w corrupt persist
|
||
|
write_test -last AAAAAAAAAAAAAAAA 'AA[a-z][a-z]AAAAAAAAAAAA' 4096 -a 2000-4000 -w corrupt persist
|
||
|
write_test -last AAAAAAAAAAAAAAAA 'AA[a-z][a-z]AAAAAAAAAAAA' 4096 -a 2000-4000 -w corrupt persist
|
||
|
write_test -last AAAAAAAAAAAAAAAA 'AA[a-z][a-z]AAAAAAAAAAAA' 16384 -a 2000-4000 -w corrupt persist
|
||
|
write_test -last AAAAAAAAAAAAAAAA 'AA[a-z][a-z]AAAAAAAAAAAA' 16384 -a 2000-4000 -w corrupt persist
|
||
|
|
||
|
write_test AAAAAAAAAAAAAAAA 'AAAAA[a-z][a-z][a-z]AAAAAAAA' 512 -a 5000-8000 -w corrupt random
|
||
|
write_test -notlast AAAAAAAAAAAAAAAA 'AAAAA[a-z][a-z][a-z]AAAAAAAA' 512 -a 5000-8000 -w corrupt random
|
||
|
write_test -notlast AAAAAAAAAAAAAAAA 'AAAAA[a-z][a-z][a-z]AAAAAAAA' 4096 -a 5000-8000 -w corrupt random
|
||
|
write_test -notlast AAAAAAAAAAAAAAAA 'AAAAA[a-z][a-z][a-z]AAAAAAAA' 4096 -a 5000-8000 -w corrupt random
|
||
|
write_test -notlast AAAAAAAAAAAAAAAA 'AAAAA[a-z][a-z][a-z]AAAAAAAA' 16384 -a 5000-8000 -w corrupt random
|
||
|
write_test -notlast AAAAAAAAAAAAAAAA 'AAAAA[a-z][a-z][a-z]AAAAAAAA' 16384 -a 5000-8000 -w corrupt random
|
||
|
|
||
|
write_test AAAAAAAAAAAAAAAA 'A[a-z]AAAAAAAAAAAAAA' 512 -a 1100-1200 -w corrupt zero
|
||
|
write_test AAAAAAAAAAAAAAAA 'A[a-z]AAAAAAAAAAAAAA' 4096 -a 1100-1200 -w corrupt zero
|
||
|
write_test AAAAAAAAAAAAAAAA 'A[a-z]AAAAAAAAAAAAAA' 16384 -a 1100-1200 -w corrupt zero
|
||
|
|
||
|
write_test AAAAAAAAAAAAAAAA AAAUUUUUUUUUUUUU 512 -a 3000 -w error EIO
|
||
|
write_test AAAAAAAAAAAAAAAA AAAUUUUUUUUUUUUU 4096 -a 3000 -w error EIO
|
||
|
write_test AAAAAAAAAAAAAAAA AAAUUUUUUUUUUUUU 16384 -a 3000 -w error EIO
|
||
|
|
||
|
write_test AAAAAAAAAAAAABAA AAAAAABAAAAAAUAA 4096 -a D000-E000 -w misdir 6000-7000 4096
|
||
|
write_test AAAAAAAAAAAAABAA 'AAAAAA(AB|BA)AAAAAUAA' 4096 -a D000-E000 -w misdir 6000-8000 4096
|
||
|
write_test AAAAAAAAAAAAABAA 'AAAAAA(AB|BA)AAAAAUAA' 4096 -a D000-E000 -w misdir 6000-8000 4096
|
||
|
write_test AAAAAAAAAAAAABAA 'AAAAAA(AB|BA)AAAAAUAA' 4096 -a D000-E000 -w misdir 6000-8000 4096
|
||
|
|
||
|
write_test AAAAAAAAABAAAAAA AAAAAAAAAUAAAAAA 512 -a 9000-A000 -w lost
|
||
|
write_test AAAAAAAAABAAAAAA AAAAAAAAAUAAAAAA 4096 -a 9000-A000 -w lost
|
||
|
write_test AAAAAAAAABAAAAAA AAAAAAAAUUUUAAAA 16384 -a 9000-A000 -w lost
|
||
|
|
||
|
write_test AAAAAAAAAAABAAAA 'AAAAAAAAAAA[a-z]AAAA' 512 -a B000-C000 -w torn 512
|
||
|
write_test AAAAAAAAAAABAAAA 'AAAAAAAAAAA[a-z]AAAA' 4096 -a B000-C000 -w torn 512
|
||
|
write_test AAAAAAAAAAABAAAA 'AAAAAAAA[a-z]UUUAAAA' 16384 -a B000-C000 -w torn 512
|
||
|
|
||
|
write_test AAAAAAAAAAABAAAA AAAAAAAAAAABAAAA 512 -a B000-C000 -w torn 4096
|
||
|
write_test AAAAAAAAAAABAAAA AAAAAAAAAAABAAAA 4096 -a B000-C000 -w torn 4096
|
||
|
write_test AAAAAAAAAAABAAAA AAAAAAAAAUUUAAAA 16384 -a B000-C000 -w torn 4096
|
||
|
|
||
|
echo "$SUCCESS out of $TOTAL tests succeeded."
|