Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752832AbZG1I4h (ORCPT ); Tue, 28 Jul 2009 04:56:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752634AbZG1I4h (ORCPT ); Tue, 28 Jul 2009 04:56:37 -0400 Received: from one.firstfloor.org ([213.235.205.2]:60975 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750997AbZG1I4g (ORCPT ); Tue, 28 Jul 2009 04:56:36 -0400 Date: Tue, 28 Jul 2009 10:56:35 +0200 From: Andi Kleen To: eranian@gmail.com Cc: Andi Kleen , perfmon2-devel , Maynard Johnson , Robert Richter , LKML , Thomas Gleixner , Paul Mackerras , Carl Love , Corey J Ashford , Andrew Morton , Peter Zijlstra , Philip Mucci , Dan Terpstra , Ingo Molnar Subject: Re: perf_counters issue with self-sampling threads Message-ID: <20090728085635.GD15310@basil.fritz.box> References: <7c86c4470907270951i48886d56g90bc198f26bb0716@mail.gmail.com> <20090727212514.GA25386@basil.fritz.box> <7c86c4470907272213w2ee57080re50dd22a4d73a7e0@mail.gmail.com> <7c86c4470907280151p13e275c0q27a51897351e8e0@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7c86c4470907280151p13e275c0q27a51897351e8e0@mail.gmail.com> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 754 Lines: 24 On Tue, Jul 28, 2009 at 10:51:04AM +0200, stephane eranian wrote: > [Reposting the message because of stupid MIME-encoding error on my part] > Andi, > > Looks like SIGPROF is calling _group_send_sig_info(), so I > think it is subject to the same problem. So sounds like a whole class of signals can't be POSIX compliant. Likely others will run into the same problem. Perhaps should define a new sigaction flag for this to make it all explicit. -Andi -- ak@linux.intel.com -- Speaking for myself only. -- 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/