On Tue, Apr 26, 2016 at 03:20:32PM -0300, Arnaldo Carvalho de Melo wrote: > Yeah, and that already works in perf, its just that it doesn't work from some > points (PERF_TYPE_SOFTWARE, PERF_TYPE_TRACEPOINT, etc), as described in the > changeset I mentioned.
Look at it the other way around, it _only_ works for intel cpu events, _nothing_ else. There is only a single PMU that supports LBR callgraph thingies, all the others do not.
