Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932878Ab2FGU6i (ORCPT ); Thu, 7 Jun 2012 16:58:38 -0400 Received: from one.firstfloor.org ([213.235.205.2]:56053 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932446Ab2FGU6h (ORCPT ); Thu, 7 Jun 2012 16:58:37 -0400 Date: Thu, 7 Jun 2012 22:58:36 +0200 From: Andi Kleen To: Stephane Eranian Cc: Andi Kleen , acme@redhat.com, jolsa@redhat.com, linux-kernel@vger.kernel.org Subject: Re: perf user tool precise attribute broken in 3.5rc1+ Message-ID: <20120607205836.GT27374@one.firstfloor.org> References: <20120607202355.GQ27374@one.firstfloor.org> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.4.2.2i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1005 Lines: 24 On Thu, Jun 07, 2012 at 10:53:19PM +0200, Stephane Eranian wrote: > On Thu, Jun 7, 2012 at 10:23 PM, Andi Kleen wrote: > > > > With a perf user tool compiled from a 3.5rc1+ kernel I cannot > > use the 'p' attribute anymore. Always get > > > > ak@petrock:~> ./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. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/