On Wed, 20 Oct 2021 11:55:22 +0900 Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote: > --- a/tools/testing/selftests/ftrace/test.d/functions > +++ b/tools/testing/selftests/ftrace/test.d/functions > @@ -124,6 +124,12 @@ initialize_ftrace() { # Reset ftrace to initial-state > [ -f uprobe_events ] && echo > uprobe_events > [ -f synthetic_events ] && echo > synthetic_events > [ -f snapshot ] && echo 0 > snapshot > + > +# Stop tracing while reading the trace file by default, to prevent > +# the test results while checking it and to avoid taking a long time > +# to check the result. > + [ -f options/pause-on-trace ] && echo 1 > options/pause-on-trace > + Is there a way we can save the previous setting and put it back on reset? -- Steve