> > So it looks like I shouldn't have any synthesized events. Have I missed > > anything? > > Yes, you are right. But you are not getting the COMM and MMAP events from > the exec which means you are killing perf before it execs the workload.
Oh, I see. > Perf writes through a pipe to its forked child to do the exec, so > to reproduce it you just need to put everything on the same cpu and play > around > with the sleep number > > taskset -c 0 tools/perf/perf record -- sleep 1 & sleep 0.005 ; kill -2 > $! > > reproduces the problem for me. Of course, since the workload doesn't get > exec'ed > it doesn't matter if it is bogus i.e. > > taskset -c 0 tools/perf/perf record -- sdfgsdgdg & sleep 0.005 ; kill > -2 $! > > also reproduces the problem. Thanks for confirming! Mark. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
