On Fri, Jul 25, 2014 at 12:36:44PM -0300, Arnaldo Carvalho de Melo wrote: > From: Adrian Hunter <adrian.hun...@intel.com> > > Intel PT decoding walks the object code to reconstruct the trace. A > jump label change during tracing causes decoding errors. > > The "Enable close-on-exec flag on perf file descriptor" patch caused > there to be always a jump label change. > > It was found that using a per-cpu context instead of a per-thread > context for the probe of the close-on-exec feature, made the problem go > away.
per-cpu events are privileged, wouldn't this change make CLOEXEC always undetected for normal users? Also, the $subject doesn't related to CLOEXEC at all.
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