Em Thu, Jun 08, 2017 at 04:29:15PM +0200, Hendrik Brueckner escreveu: > On Thu, Jun 08, 2017 at 11:05:32AM -0300, Arnaldo Carvalho de Melo wrote: > > Em Thu, Jun 08, 2017 at 10:40:44AM +0200, Thomas Richter escreveu: > > > Fix this by changing function perf_evsel__new_cycles(). It is called > > > very early in the event setup. Delay the determination of > > > the value of precise_ip until the context is known. This is the case > > > when perf_evsel__config() is called. > > > Function perf_evsel__new_cycles() just marks precise_ip to be > > > determined later. > > > Also change the modifier to 'P' for maximum detected precise level. > > This "Also" usually indicates that you are folding two changes into one > > patch, please break it into two, and also send it to the perf > That's usually right. Except for the change below. The > perf_evsel__new_cycles() function constructs a perf event selection. > The construction includes setting evsel->precise_max and specifying > the event name string. To keep setting precise_max and the event name > in sync, the :P modifier must be set. This should be part of the same > commit and not split into two. Ack, you're right, I'm testing this now, thanks for the patch! - Arnaldo -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html