Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755823Ab3D0PRt (ORCPT ); Sat, 27 Apr 2013 11:17:49 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52182 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753646Ab3D0PRs (ORCPT ); Sat, 27 Apr 2013 11:17:48 -0400 Date: Sat, 27 Apr 2013 17:14:34 +0200 From: Oleg Nesterov To: Jacob Shin Cc: Ingo Molnar , Frederic Weisbecker , Peter Zijlstra , Arnaldo Carvalho de Melo , "H. Peter Anvin" , Thomas Gleixner , x86@kernel.org, Stephane Eranian , Jiri Olsa , linux-kernel@vger.kernel.org, Will Deacon Subject: Re: [PATCH 1/3] perf/x86/amd: AMD support for bp_len > HW_BREAKPOINT_LEN_8 Message-ID: <20130427151434.GA25746@redhat.com> References: <1367002666-6910-1-git-send-email-jacob.shin@amd.com> <1367002666-6910-2-git-send-email-jacob.shin@amd.com> <20130427150510.GA25109@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130427150510.GA25109@redhat.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 539 Lines: 14 On 04/27, Oleg Nesterov wrote: > > Suppose that the kernel was compiled without CONFIG_CPU_SUP_AMD. > Then perf_event_open(attr => { .bp_len == 16 }) will succeed, ^^^^^^^^^^^^ sorry, I meant "can succeed" if CPU has X86_FEATURE_BPEXT. Oleg. -- 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/