On Tue, 26 Oct 2021 21:13:31 +0900 Masami Hiramatsu <mhiramat@xxxxxxxxxx> wrote: > > > No, since each testcase must be run under the clean state. Would we need to > > > recover the settings? > > > > I would at least put it back to the default. If someone runs the tests, > > it should at least put it back to what it was at boot. Otherwise, > > someone might run the tests, and then wonder why events are being > > dropped when they are reading the trace. > > Umm, we may need to have a knob to reset the ftrace options... > Can we warn such user that if the ftracetest finds that the current > value is not the same what it sets? You mean before we set pause-on-trace, make sure that it was cleared? That could work too, and then just set everything back to what we expected it to be at the start. -- Steve
