Lines Matching +full:in +full:- +full:memory
2 # SPDX-License-Identifier: GPL-2.0
6 # Kselftest framework requirement - SKIP code is 4.
18 SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
20 if [ ! -d "$SYSFS" ]; then
25 if ! ls $SYSFS/devices/system/memory/memory* > /dev/null 2>&1; then
26 echo $msg memory hotplug is not supported >&2
30 if ! grep -q 1 $SYSFS/devices/system/memory/memory*/removable; then
31 echo $msg no hot-pluggable memory >&2
37 # list all hot-pluggable memory
41 local state=${1:-.\*}
43 for memory in $SYSFS/devices/system/memory/memory*; do
44 if grep -q 1 $memory/removable &&
45 grep -q $state $memory/state; then
46 echo ${memory##/*/memory}
63 grep -q online $SYSFS/devices/system/memory/memory$1/state
68 grep -q offline $SYSFS/devices/system/memory/memory$1/state
73 echo online > $SYSFS/devices/system/memory/memory$1/state
78 echo offline > $SYSFS/devices/system/memory/memory$1/state
83 local memory=$1
85 if ! online_memory $memory; then
86 echo $FUNCNAME $memory: unexpected fail >&2
88 elif ! memory_is_online $memory; then
89 echo $FUNCNAME $memory: unexpected offline >&2
97 local memory=$1
99 if online_memory $memory 2> /dev/null; then
100 echo $FUNCNAME $memory: unexpected success >&2
102 elif ! memory_is_offline $memory; then
103 echo $FUNCNAME $memory: unexpected online >&2
111 local memory=$1
113 if ! offline_memory $memory; then
114 echo $FUNCNAME $memory: unexpected fail >&2
116 elif ! memory_is_offline $memory; then
117 echo $FUNCNAME $memory: unexpected offline >&2
125 local memory=$1
127 if offline_memory $memory 2> /dev/null; then
128 echo $FUNCNAME $memory: unexpected success >&2
130 elif ! memory_is_online $memory; then
131 echo $FUNCNAME $memory: unexpected offline >&2
139 for memory in `hotpluggable_offline_memory`; do
140 if ! online_memory_expect_success $memory; then
146 error=-12
153 case $opt in
158 echo "Usage $0 [ -e errno ] [ -p notifier-priority ] [ -r percent-of-memory-to-offline ]"
166 if [ "$ratio" -gt 100 ] || [ "$ratio" -lt 0 ]; then
174 if ! [ "$error" -ge -4095 -a "$error" -lt 0 ]; then
175 echo "error code must be -4095 <= errno < 0" >&2
181 echo "Test scope: $ratio% hotplug memory"
184 # Online all hot-pluggable memory
186 hotpluggable_num=`hotpluggable_offline_memory | wc -l`
187 echo -e "\t online all hot-pluggable memory in offline state:"
188 if [ "$hotpluggable_num" -gt 0 ]; then
189 for memory in `hotpluggable_offline_memory`; do
190 echo "offline->online memory$memory"
191 if ! online_memory_expect_success $memory; then
196 echo -e "\t\t SKIPPED - no hot-pluggable memory in offline state"
200 # Offline $ratio percent of hot-pluggable memory
202 hotpluggable_num=`hotpluggable_online_memory | wc -l`
204 echo -e "\t offline $ratio% hot-pluggable memory in online state"
205 echo -e "\t trying to offline $target out of $hotpluggable_num memory block(s):"
206 for memory in `hotpluggable_online_memory`; do
207 if [ "$target" -gt 0 ]; then
208 echo "online->offline memory$memory"
209 if offline_memory_expect_success $memory &>/dev/null; then
210 target=$(($target - 1))
211 echo "-> Success"
213 echo "-> Failure"
217 if [ "$target" -gt 0 ]; then
219 echo -e "\t\t FAILED - unable to offline some memory blocks, device busy?"
223 # Online all hot-pluggable memory again
225 hotpluggable_num=`hotpluggable_offline_memory | wc -l`
226 echo -e "\t online all hot-pluggable memory in offline state:"
227 if [ "$hotpluggable_num" -gt 0 ]; then
228 for memory in `hotpluggable_offline_memory`; do
229 echo "offline->online memory$memory"
230 if ! online_memory_expect_success $memory; then
235 echo -e "\t\t SKIPPED - no hot-pluggable memory in offline state"
239 # Test with memory notifier error injection
242 DEBUGFS=`mount -t debugfs | head -1 | awk '{ print $3 }'`
243 NOTIFIER_ERR_INJECT_DIR=$DEBUGFS/notifier-error-inject/memory
249 /sbin/modprobe -q -r memory-notifier-error-inject
250 /sbin/modprobe -q memory-notifier-error-inject priority=$priority
252 if [ ! -d "$DEBUGFS" ]; then
257 if [ ! -d $NOTIFIER_ERR_INJECT_DIR ]; then
258 echo $msg memory-notifier-error-inject module is not available >&2
263 echo -e "\t Test with memory notifier error injection"
267 # Offline $ratio percent of hot-pluggable memory
270 for memory in `hotpluggable_online_memory`; do
271 if [ $((RANDOM % 100)) -lt $ratio ]; then
272 offline_memory_expect_success $memory &>/dev/null
277 # Test memory hot-add error handling (offline => online)
280 for memory in `hotpluggable_offline_memory`; do
281 if ! online_memory_expect_fail $memory; then
287 # Online all hot-pluggable memory
293 # Test memory hot-remove error handling (online => offline)
296 for memory in `hotpluggable_online_memory`; do
297 if [ $((RANDOM % 100)) -lt $ratio ]; then
298 if ! offline_memory_expect_fail $memory; then
305 /sbin/modprobe -q -r memory-notifier-error-inject
308 # Restore memory before exit