On Mon, 26 Jun 2023 08:11:44 +0800 Zheng Yejian <zhengyejian1@xxxxxxxxxx> wrote: > Function instance_set() expects to enable event 'sched_switch', so we > should set 1 to its 'enable' file. > > Testcase passed after this patch: > # ./ftracetest test.d/instances/instance-event.tc > === Ftrace unit tests === > [1] Test creation and deletion of trace instances while setting an event > [PASS] > > # of passed: 1 > # of failed: 0 > # of unresolved: 0 > # of untested: 0 > # of unsupported: 0 > # of xfailed: 0 > # of undefined(test bug): 0 > Good catch! Fixes: 91e6f1ce8657 ("ftracetest: Add instance created, delete, read and enable event test") It seems this tests internally broken but the result is same because this disabled error checking ('set +e'). > Signed-off-by: Zheng Yejian <zhengyejian1@xxxxxxxxxx> > --- > .../testing/selftests/ftrace/test.d/instances/instance-event.tc | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc b/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc > index 0eb47fbb3f44..42422e425107 100644 > --- a/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc > +++ b/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc > @@ -39,7 +39,7 @@ instance_read() { > > instance_set() { > while :; do > - echo 1 > foo/events/sched/sched_switch > + echo 1 > foo/events/sched/sched_switch/enable > done 2> /dev/null > } > > -- > 2.25.1 > -- Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>