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Date: Thu, 7 Jun 2012 23:37:16 +0200 From: Stephane Eranian <eranian@...gle.com> To: Andi Kleen <andi@...stfloor.org> Cc: acme@...hat.com, jolsa@...hat.com, linux-kernel@...r.kernel.org Subject: Re: perf user tool precise attribute broken in 3.5rc1+ On Thu, Jun 7, 2012 at 10:58 PM, Andi Kleen <andi@...stfloor.org> wrote: > On Thu, Jun 07, 2012 at 10:53:19PM +0200, Stephane Eranian wrote: >> On Thu, Jun 7, 2012 at 10:23 PM, Andi Kleen <andi@...stfloor.org> wrote: >> > >> > With a perf user tool compiled from a 3.5rc1+ kernel I cannot >> > use the 'p' attribute anymore. Always get >> > >> > ak@...rock:~> ./perf record -e cycles:p ./t >> > >> > Error: sys_perf_event_open() syscall returned with 22 (Invalid argument). /bin/dmesg may provide additional information. >> > >> > Fatal: No CONFIG_PERF_EVENTS=y kernel support configured? >> > >> Remember that PEBS is disabled on SNB unless you have the new ucode + my patch. > > This is not the problem. This was actually a -E where it was not disabled > in my tree. And the older perf binary works, so it's clearly not a kernel > problem. What's -E? > > -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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