Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756889AbYJPSXA (ORCPT ); Thu, 16 Oct 2008 14:23:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753946AbYJPSWv (ORCPT ); Thu, 16 Oct 2008 14:22:51 -0400 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.125]:48861 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752683AbYJPSWu (ORCPT ); Thu, 16 Oct 2008 14:22:50 -0400 Date: Thu, 16 Oct 2008 14:22:48 -0400 (EDT) From: Steven Rostedt X-X-Sender: rostedt@gandalf.stny.rr.com To: Josh Boyer cc: Ingo Molnar , Peter Zijlstra , linux-kernel@vger.kernel.org, David Miller , linuxppc-dev@ozlabs.org, Thomas Gleixner , Andrew Morton Subject: Re: [PATCH 0/2] ftrace: fixes for PPC In-Reply-To: <20081016181452.GA29739@yoda.jdub.homelinux.org> Message-ID: References: <20080906050602.409299112@goodmis.org> <20080906120346.GA30964@elte.hu> <20081016181452.GA29739@yoda.jdub.homelinux.org> 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: 1511 Lines: 38 On Thu, 16 Oct 2008, Josh Boyer wrote: > On Sat, Sep 06, 2008 at 02:03:47PM +0200, Ingo Molnar wrote: > > > >* Steven Rostedt wrote: > > > >> I spent the day chasing a bug that would hang PPC on boot up when > >> ftrace is configured in. I found that it was simply a stupid bug I did > >> to handle the non MCOUNT_RECORD case. Since I was testing only on x86, > >> and the MCOUNT_RECORD is automatically set for dynamic ftrace if it is > >> available, I did not test the case where MCOUNT_RECORD was not set. > >> > >> I have not finished porting MCOUNT_RECORD to PPC, but have found that > >> it has caused some issues for archs that do not support it yet. > >> > >> This patch series handles these cases. > > > >applied to tip/tracing/ftrace, thanks Steve. > > Are these two merged yet? I just spent the better part of the morning > trying to figure out why various Fedora kernels based on 2.6.27-rcX and > 2.6.27 final hung on my G5 and finally got one booting with FTRACE > disabled. My powerbook does not boot with ftrace enabled. I'm currently debugging it. When I get it working, you'll see patches. They will be to linux-tip though, and not for the current mainline (unless the code in linux-tip gets merged). -- 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/