On Fri, 1 May 2020 22:37:51 +0900 Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote: > Since the kprobe/kprobe_args_type.tc reads out all event logs > from the trace buffer, the test can fail if there is another > fork event happens. > Use head command to pick only the first kprobe event from > the trace buffer to test the argument types. > > Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx> > --- > .../ftrace/test.d/kprobe/kprobe_args_type.tc | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc > index 1bcb67dcae26..81490ecaaa92 100644 > --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc > +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc > @@ -38,7 +38,7 @@ for width in 64 32 16 8; do > echo 0 > events/kprobes/testprobe/enable > > : "Confirm the arguments is recorded in given types correctly" > - ARGS=`grep "testprobe" trace | sed -e 's/.* arg1=\(.*\) arg2=\(.*\) arg3=\(.*\) arg4=\(.*\)/\1 \2 \3 \4/'` > + ARGS=`grep "testprobe" trace | head -n 1 | sed -e 's/.* arg1=\(.*\) arg2=\(.*\) arg3=\(.*\) arg4=\(.*\)/\1 \2 \3 \4/'` > check_types $ARGS $width > > : "Clear event for next loop" I think I've manually added this exact change to my tests to keep it from failing. Reviewed-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> -- Steve
