Messages in this thread | | | Date | Tue, 27 Sep 2022 09:26:40 +0200 | From | David Hildenbrand <> | Subject | Re: [PATCH -next v4 1/3] selftests/memory-hotplug: Add checking after online or offline |
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On 27.09.22 05:28, Zhao Gongyi wrote: > Add checking for online_memory_expect_success()/ > offline_memory_expect_success()/offline_memory_expect_fail(), or > the test would exit 0 although the functions return 1. > > Signed-off-by: Zhao Gongyi <zhaogongyi@huawei.com> > --- > .../selftests/memory-hotplug/mem-on-off-test.sh | 12 +++++++++--- > 1 file changed, 9 insertions(+), 3 deletions(-) > > diff --git a/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh > index 46a97f318f58..1d87611a7d52 100755 > --- a/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh > +++ b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh > @@ -266,7 +266,9 @@ done > # > echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_ONLINE/error > for memory in `hotpluggable_offline_memory`; do > - online_memory_expect_fail $memory > + if ! online_memory_expect_fail $memory; then > + retval=1 > + fi > done > > # > @@ -274,7 +276,9 @@ done > # > echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_ONLINE/error > for memory in `hotpluggable_offline_memory`; do > - online_memory_expect_success $memory > + if ! online_memory_expect_success $memory; then > + retval=1 > + fi > done > > # > @@ -283,7 +287,9 @@ done > echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error > for memory in `hotpluggable_online_memory`; do > if [ $((RANDOM % 100)) -lt $ratio ]; then > - offline_memory_expect_fail $memory > + if ! offline_memory_expect_fail $memory; then > + retval=1 > + fi > fi
LGTM
Reviewed-by: David Hildenbrand <david@redhat.com>
I am questioning the stability of the offlining test, though. Offlining a random memory block can fail easily, because "->removable" is not expressive:
# tools/testing/selftests/memory-hotplug/mem-on-off-test.sh Test scope: 2% hotplug memory online all hot-pluggable memory in offline state: SKIPPED - no hot-pluggable memory in offline state offline 2% hot-pluggable memory in online state trying to offline 2 out of 96 memory block(s): online->offline memory0 tools/testing/selftests/memory-hotplug/mem-on-off-test.sh: line 78: echo: write error: Invalid argument offline_memory_expect_success 0: unexpected fail online->offline memory10 online->offline memory11
I guess this test will almost always fail nowadays.
-- Thanks,
David / dhildenb
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