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Message-ID: <20221104020931.231090-1-zouyipeng@huawei.com>
Date: Fri, 4 Nov 2022 10:09:31 +0800
From: Yipeng Zou <zouyipeng@...wei.com>
To: <rostedt@...dmis.org>, <mhiramat@...nel.org>, <shuah@...nel.org>,
<rdunlap@...radead.org>, <linux-kselftest@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
CC: <zouyipeng@...wei.com>
Subject: [PATCH] selftests/ftrace: event_triggers: wait longer for test_event_enable
In some platform, the schedule event may came slowly, delay 100ms can't
cover it.
I was notice that on my board which running in low cpu_freq,and this
selftests allways gose fail.
So maybe we can check more times here to wait longer.
Fixes: 43bb45da82f9 ("selftests: ftrace: Add a selftest to test event enable/disable func trigger")
Signed-off-by: Yipeng Zou <zouyipeng@...wei.com>
---
.../ftrace/test.d/ftrace/func_event_triggers.tc | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
index 8d26d5505808..3eea2abf68f9 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
@@ -38,11 +38,18 @@ cnt_trace() {
test_event_enabled() {
val=$1
+ check_times=10 # wait for 10 * SLEEP_TIME at most
- e=`cat $EVENT_ENABLE`
- if [ "$e" != $val ]; then
- fail "Expected $val but found $e"
- fi
+ while [ $check_times -ne 0 ]; do
+ e=`cat $EVENT_ENABLE`
+ if [ "$e" == $val ]; then
+ return 0
+ fi
+ sleep $SLEEP_TIME
+ check_times=$((check_times - 1))
+ done
+
+ fail "Expected $val but found $e"
}
run_enable_disable() {
--
2.17.1
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