linux-kernel - Re: [MEMO] ftrace suckage++

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Message-ID: <490A3D2B.2060400@canonical.com>
Date:	Thu, 30 Oct 2008 17:03:07 -0600
From:	Tim Gardner <tim.gardner@...onical.com>
To:	"Luis R. Rodriguez" <mcgrof@...il.com>
CC:	Tomas Winkler <tomasw@...il.com>,
	reinette chatre <reinette.chatre@...ux.intel.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	Linux-Kernel <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [MEMO] ftrace suckage++

Luis R. Rodriguez wrote:
> As johannes pointed out to me the culprit to the e1000e corruption was
> determined to be ftrace related [1]. Well it seems I hit an oops with
> ftrace using iwlagn after a simple load of the module using
> wireless-testing. I'm not sure if john's tree yet has ftrace fixes.
> Both Fedora 10 and Ubuntu 8.10 had dynamic ftrace enabled so users on
> these first kernels and using compat-wireless may run into this so
> just putting this out there. I'll can check for this flag in
> compat-wireless for now and bitch/exit if its enabled unless someone
> has a better idea.
> 
> [1] http://lwn.net/Articles/303390/
> 

I disabled it in the 2.6.27 Intrepid Ubuntu kernel prior to release.

rtg
-- 
Tim Gardner tim.gardner@...onical.com
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