From: Josh Boyer <jwboyer@linux.vnet.ibm.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
Steven Rostedt <srostedt@redhat.com>,
Alan Modra <amodra@au1.ibm.com>,
Scott Wood <scottwood@freescale.com>,
Eran Liberty <liberty@extricom.com>
Subject: Re: ftrace introduces instability into kernel 2.6.27(-rc2,-rc3)
Date: Wed, 20 Aug 2008 10:50:35 -0400 [thread overview]
Message-ID: <20080820105035.49f29509@zod.rchland.ibm.com> (raw)
In-Reply-To: <alpine.DEB.1.10.0808201022080.23571@gandalf.stny.rr.com>
On Wed, 20 Aug 2008 10:22:49 -0400 (EDT)
Steven Rostedt <rostedt@goodmis.org> wrote:
>
> On Wed, 20 Aug 2008, Josh Boyer wrote:
> >
> > Segher was looking at this a bit this morning. He thinks it's really
> > -fno-omit-frame-pointer that is causing this. That really shouldn't
> > even be set on PowerPC, but FTRACE uses select which overrides the
> > depends on stuff in Kconfig.
>
> I can easily make a patch that makes that select an x86 only.
That's probably a first step, but you might want to wait until Segher
can fill in more details. I'm sort of just relaying what he and I were
talking about on IRC. IIRC, he was testing builds with and without
both -pg and -fno-omit-frame-pointer and found the bug only when
-fno-omit-frame-pointer was present.
josh
next prev parent reply other threads:[~2008-08-20 14:50 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <48591941.4070408@extricom.com>
[not found] ` <48A92E15.2080709@extricom.com>
2008-08-18 15:07 ` ftrace introduces instability into kernel 2.6.27(-rc2,-rc3) Steven Rostedt
2008-08-18 15:47 ` Mathieu Desnoyers
2008-08-18 16:12 ` Steven Rostedt
2008-08-18 17:04 ` Mathieu Desnoyers
2008-08-18 17:21 ` Scott Wood
2008-08-18 18:27 ` Steven Rostedt
2008-08-18 18:29 ` Scott Wood
2008-08-19 1:53 ` Benjamin Herrenschmidt
2008-08-19 2:28 ` Steven Rostedt
2008-08-19 2:39 ` Benjamin Herrenschmidt
2008-08-19 2:41 ` Steven Rostedt
2008-08-19 2:47 ` Mathieu Desnoyers
2008-08-19 3:32 ` Steven Rostedt
2008-08-19 3:36 ` Mathieu Desnoyers
2008-08-19 4:00 ` Steven Rostedt
2008-08-19 16:47 ` Steven Rostedt
2008-08-19 17:34 ` Mathieu Desnoyers
2008-08-19 21:08 ` Steven Rostedt
2008-08-20 9:40 ` Nick Piggin
2008-08-19 21:47 ` Benjamin Herrenschmidt
2008-08-19 23:58 ` Jeremy Fitzhardinge
2008-08-20 1:17 ` Benjamin Herrenschmidt
2008-08-19 2:56 ` Benjamin Herrenschmidt
2008-08-19 3:12 ` Steven Rostedt
2008-08-19 4:17 ` Benjamin Herrenschmidt
2008-08-20 7:18 ` Benjamin Herrenschmidt
2008-08-20 13:14 ` Steven Rostedt
2008-08-20 13:19 ` Steven Rostedt
2008-08-20 13:36 ` Eran Liberty
2008-08-20 13:43 ` Steven Rostedt
2008-08-20 14:02 ` Eran Liberty
2008-08-20 14:55 ` Jon Smirl
2008-08-20 15:23 ` Steven Rostedt
2008-08-20 18:23 ` Eran Liberty
2008-08-20 18:33 ` Steven Rostedt
2008-08-20 15:27 ` Steven Rostedt
2008-08-20 21:37 ` Benjamin Herrenschmidt
2008-08-20 14:16 ` Josh Boyer
2008-08-20 14:22 ` Steven Rostedt
2008-08-20 14:50 ` Josh Boyer [this message]
2008-08-20 21:36 ` Benjamin Herrenschmidt
2008-08-20 21:44 ` Steven Rostedt
2008-08-18 18:47 ` Steven Rostedt
2008-08-18 18:56 ` Scott Wood
2008-08-18 19:28 ` Steven Rostedt
2008-08-18 18:25 ` Eran Liberty
2008-08-18 18:41 ` Mathieu Desnoyers
2008-08-19 1:54 ` Benjamin Herrenschmidt
2008-08-19 9:56 ` Eran Liberty
2008-08-19 13:02 ` Mathieu Desnoyers
2008-08-19 21:46 ` Benjamin Herrenschmidt
2008-08-18 18:50 ` Steven Rostedt
2008-08-19 12:09 ` Eran Liberty
2008-08-19 13:05 ` Mathieu Desnoyers
2008-08-19 14:21 ` Eran Liberty
2008-08-19 14:42 ` Mathieu Desnoyers
2008-08-19 20:15 ` Steven Rostedt
2008-08-20 11:18 ` Eran Liberty
2008-08-20 13:12 ` Steven Rostedt
2008-08-19 1:51 ` Benjamin Herrenschmidt
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