On 2022-02-14 09:36:57 [+0100], Krzysztof Kozlowski wrote: > The PREEMPT_RT patchset does not use do_softirq() function thus trying > to filter for do_softirq fails for such kernel: > > echo do_softirq > ftracetest: 81: echo: echo: I/O error > > Choose some other visible function for the test. The function does not > have to be actually executed during the test, because it is only testing > filter API interface. > > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> > Reviewed-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> > Reviewed-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> Acked-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> > Notes: > I understand that the failure does not exist on mainline kernel (only > with PREEMPT_RT patchset) but the change does not harm it. Yes, and now it does not sound (to me) like duct tape. Thank you. > If it is not suitable alone, please consider it for RT patchset. We trying to get it merged so… Sebastian
