Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752985Ab1BWKV6 (ORCPT ); Wed, 23 Feb 2011 05:21:58 -0500 Received: from casper.infradead.org ([85.118.1.10]:54061 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751573Ab1BWKV5 convert rfc822-to-8bit (ORCPT ); Wed, 23 Feb 2011 05:21:57 -0500 Subject: Re: Funny perf From: Peter Zijlstra To: Borislav Petkov Cc: Arnaldo Carvalho de Melo , Ingo Molnar , LKML In-Reply-To: <20110217182658.GA23443@aftab> References: <20110217182658.GA23443@aftab> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Date: Wed, 23 Feb 2011 11:21:48 +0100 Message-ID: <1298456508.2217.357.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 907 Lines: 22 On Thu, 2011-02-17 at 19:26 +0100, Borislav Petkov wrote: > > so this looks like some of the samples do not belong in the perf.data > output with that garbled cpu field. It lets me also assume that the > sample->time field is also crap so the timestamp check is falsely > tripped. Most interesting, I haven't tried to reproduce, but it does sound smelly. I did have a quick peek at some code I suspected but that all seems in order. I guess someone will have to sit down and figure this out proper, if nobody steps up I guess it'll have to be me, but that also means it might take a while since I've got some other pending stuff to stare at before this :/ -- 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/