From: Miroslav Benes mbenes@suse.cz
[ Upstream commit 884ee754f5aedbe54406a4d308a6cc57335747ce ]
check_result() uses "comm" to check expected results of selftests output in dmesg. Everything works fine if timestamps in dmesg are unique. If not, like in this example
[ 86.844422] test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_LIVE] Normal state [ 86.844422] livepatch: 'test_klp_callbacks_demo': starting unpatching transition
, "comm" fails with "comm: file 2 is not in sorted order". Suppress the order checking with --nocheck-order option.
Fixes: 2f3f651f3756 ("selftests/livepatch: Use "comm" instead of "diff" for dmesg") Signed-off-by: Miroslav Benes mbenes@suse.cz Acked-by: Joe Lawrence joe.lawrence@redhat.com Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/livepatch/functions.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/livepatch/functions.sh b/tools/testing/selftests/livepatch/functions.sh index 1aba83c87ad32..846c7ed71556f 100644 --- a/tools/testing/selftests/livepatch/functions.sh +++ b/tools/testing/selftests/livepatch/functions.sh @@ -278,7 +278,7 @@ function check_result { # help differentiate repeated testing runs. Remove them with a # post-comparison sed filter.
- result=$(dmesg | comm -13 "$SAVED_DMESG" - | \ + result=$(dmesg | comm --nocheck-order -13 "$SAVED_DMESG" - | \ grep -e 'livepatch:' -e 'test_klp' | \ grep -v '(tainting|taints) kernel' | \ sed 's/^[[ 0-9.]*] //')