On Fri, 14 Feb 2020 11:42:45 +0900 Sergey Senozhatsky <sergey.senozhatsky.work@xxxxxxxxx> wrote: > > > +++ b/kernel/trace/trace_event_perf.c > > > @@ -477,7 +477,7 @@ static int perf_ftrace_function_register > > > { > > > struct ftrace_ops *ops = &event->ftrace_ops; > > > > > > - ops->flags = FTRACE_OPS_FL_RCU; > > > + ops->flags = 0; > > > > FTRACE_OPS_FL_ENABLED? > > No, never mind. :-) -- Steve