Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757428AbYHTPXc (ORCPT ); Wed, 20 Aug 2008 11:23:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753205AbYHTPXX (ORCPT ); Wed, 20 Aug 2008 11:23:23 -0400 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.125]:42347 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752708AbYHTPXW (ORCPT ); Wed, 20 Aug 2008 11:23:22 -0400 Date: Wed, 20 Aug 2008 11:23:19 -0400 (EDT) From: Steven Rostedt X-X-Sender: rostedt@gandalf.stny.rr.com To: Jon Smirl cc: Eran Liberty , Mathieu Desnoyers , linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org, Steven Rostedt , Alan Modra , Scott Wood , "Paul E. McKenney" Subject: Re: ftrace introduces instability into kernel 2.6.27(-rc2,-rc3) In-Reply-To: <9e4733910808200755y1128ae56p6a1235684bfbb3ec@mail.gmail.com> Message-ID: References: <48591941.4070408@extricom.com> <1219114600.8062.15.camel@pasglop> <1219119431.8062.35.camel@pasglop> <1219216705.21386.46.camel@pasglop> <48AC1DD8.9080702@extricom.com> <48AC23F4.80900@extricom.com> <9e4733910808200755y1128ae56p6a1235684bfbb3ec@mail.gmail.com> User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 983 Lines: 34 On Wed, 20 Aug 2008, Jon Smirl wrote: > > > > > > > c00bb690: bb 0b ff e0 lmw r24,-32(r11) > > > > c00bb694: 7c 08 03 a6 mtlr r0 > > > > c00bb698: 4e 80 00 20 blr > > > > > > > > > > > > > > Yep, you have the same bug in your compiler. > > > > > > -- Steve > > > > > > > > Hmm... so whats now? > > > > Is there a way to prove this scenario is indeed the one that caused the > > opps? > > Manually edit the broken binary to change the order of the restore and > see if the problem disappears. That will keep everything else > constant. Does it only happen on this function? Or is it happening on others as well. So manually fixing it here won't help much unless we fix it everywhere. -- Steve -- 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/