On Wed, Mar 14, 2018 at 05:37:46PM -0400, Steven Rostedt wrote: > On Tue, 13 Mar 2018 11:29:51 -0400 (EDT) > Mathieu Desnoyers <mathieu.desnoy...@efficios.com> wrote: > > > Here is a WARN_ON() splat in tracepoint.c, which I suspect is caused > > by perf trying to register the same probe twice to the tracepoint API. > > We got another splat on unregister too, which I will forward in a > > separate email. > > > > Thoughts ? > > Yes, it looks like it's perf not accounting for registered events > properly. > > Peter?
I've not yet managed to reproduce, but if you look at the provided repro.c file, you'll see it opens two _different_ events.