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selftests: fix memory-hotplug test

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In the memory offline test, the $ration was used with RANDOM as the
possibility to get it offlined, correct it to become the portion of
available removable memory blocks.

Also ask the tool to try to offline the next available memory block
if the attempt is unsuccessful. It will only fail if all removable
memory blocks are busy.

A nice example:
$ sudo ./test.sh
Test scope: 10% hotplug memory
	online all hot-pluggable memory in offline state:
		SKIPPED - no hot-pluggable memory in offline state
	offline 10% hot-pluggable memory in online state
	trying to offline 3 out of 28 memory block(s):
online->offline memory1
online->offline memory10
./test.sh: line 74: echo: write error: Resource temporarily unavailable
offline_memory_expect_success 10: unexpected fail
online->offline memory100
online->offline memory101
	online all hot-pluggable memory in offline state:
offline->online memory1
offline->online memory100
offline->online memory101
skip extra tests: debugfs is not mounted
$ echo $?
0

Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
This commit is contained in:
Po-Hsu Lin 2017-06-27 14:17:15 +08:00 committed by Shuah Khan
parent 02d8f075ac
commit 5ff0c60b0e
1 changed files with 54 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
View File

@ -80,9 +80,12 @@ online_memory_expect_success()
if ! online_memory $memory; then
echo $FUNCNAME $memory: unexpected fail >&2
return 1
elif ! memory_is_online $memory; then
echo $FUNCNAME $memory: unexpected offline >&2
return 1
fi
return 0
}
online_memory_expect_fail()
@ -91,9 +94,12 @@ online_memory_expect_fail()
if online_memory $memory 2> /dev/null; then
echo $FUNCNAME $memory: unexpected success >&2
return 1
elif ! memory_is_offline $memory; then
echo $FUNCNAME $memory: unexpected online >&2
return 1
fi
return 0
}
offline_memory_expect_success()
@ -102,9 +108,12 @@ offline_memory_expect_success()
if ! offline_memory $memory; then
echo $FUNCNAME $memory: unexpected fail >&2
return 1
elif ! memory_is_offline $memory; then
echo $FUNCNAME $memory: unexpected offline >&2
return 1
fi
return 0
}
offline_memory_expect_fail()
@ -113,14 +122,18 @@ offline_memory_expect_fail()
if offline_memory $memory 2> /dev/null; then
echo $FUNCNAME $memory: unexpected success >&2
return 1
elif ! memory_is_online $memory; then
echo $FUNCNAME $memory: unexpected offline >&2
return 1
fi
return 0
}
error=-12
priority=0
ratio=10
retval=0
while getopts e:hp:r: opt; do
case $opt in
@ -152,35 +165,58 @@ fi
prerequisite
echo "Test scope: $ratio% hotplug memory"
echo -e "\t online all hotplug memory in offline state"
echo -e "\t offline $ratio% hotplug memory in online state"
echo -e "\t online all hotplug memory in offline state"
#
# Online all hot-pluggable memory
#
for memory in `hotpluggable_offline_memory`; do
echo offline-online $memory
online_memory_expect_success $memory
done
hotpluggable_num=`hotpluggable_offline_memory | wc -l`
echo -e "\t online all hot-pluggable memory in offline state:"
if [ "$hotpluggable_num" -gt 0 ]; then
for memory in `hotpluggable_offline_memory`; do
echo "offline->online memory$memory"
if ! online_memory_expect_success $memory; then
retval=1
fi
done
else
echo -e "\t\t SKIPPED - no hot-pluggable memory in offline state"
fi
#
# Offline $ratio percent of hot-pluggable memory
#
hotpluggable_num=`hotpluggable_online_memory | wc -l`
target=`echo "a=$hotpluggable_num*$ratio; if ( a%100 ) a/100+1 else a/100" | bc`
echo -e "\t offline $ratio% hot-pluggable memory in online state"
echo -e "\t trying to offline $target out of $hotpluggable_num memory block(s):"
for memory in `hotpluggable_online_memory`; do
if [ $((RANDOM % 100)) -lt $ratio ]; then
echo online-offline $memory
offline_memory_expect_success $memory
if [ "$target" -gt 0 ]; then
echo "online->offline memory$memory"
if offline_memory_expect_success $memory; then
target=$(($target - 1))
fi
fi
done
if [ "$target" -gt 0 ]; then
retval=1
echo -e "\t\t FAILED - unable to offline some memory blocks, device busy?"
fi
#
# Online all hot-pluggable memory again
#
for memory in `hotpluggable_offline_memory`; do
echo offline-online $memory
online_memory_expect_success $memory
done
hotpluggable_num=`hotpluggable_offline_memory | wc -l`
echo -e "\t online all hot-pluggable memory in offline state:"
if [ "$hotpluggable_num" -gt 0 ]; then
for memory in `hotpluggable_offline_memory`; do
echo "offline->online memory$memory"
if ! online_memory_expect_success $memory; then
retval=1
fi
done
else
echo -e "\t\t SKIPPED - no hot-pluggable memory in offline state"
fi
#
# Test with memory notifier error injection
@ -198,12 +234,12 @@ prerequisite_extra()
if [ ! -d "$DEBUGFS" ]; then
echo $msg debugfs is not mounted >&2
exit 0
exit $retval
fi
if [ ! -d $NOTIFIER_ERR_INJECT_DIR ]; then
echo $msg memory-notifier-error-inject module is not available >&2
exit 0
exit $retval
fi
}
@ -246,3 +282,5 @@ done
echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error
/sbin/modprobe -q -r memory-notifier-error-inject
exit $retval