linux-kernel - Re: 2.6.38-rc7, iwlagn warning

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Message-ID: <1299601619.3734.1.camel@jlt3.sipsolutions.net>
Date:	Tue, 08 Mar 2011 17:26:59 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	Mathias Burén <mathias.buren@...il.com>
Cc:	wwguy <wey-yi.w.guy@...el.com>,
	"John W. Linville" <linville@...driver.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"ilw@...ux.intel.com" <ilw@...ux.intel.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
Subject: Re: 2.6.38-rc7, iwlagn warning

On Tue, 2011-03-08 at 16:22 +0000, Mathias Burén wrote:

> > Would you be willing to enable tracing and capture a trace using
> > trace-cmd, by running 'trace-cmd record -e mac80211 -e iwlwifi'?

> I've since upgraded to 2.6.38-rc8 (same config). Looking around in the
> config, is it CONFIG_FUNCTION_TRACER I need to enable, and is that it?
> (kernel function tracer)

You need CONFIG_MAC80211_DRIVER_API_TRACER and
CONFIG_IWLWIFI_DEVICE_TRACING (and their prerequisites, which you can
find in menuconfig by hitting the slash ("/") key and searching for
these config symbols, remove the CONFIG_ prefix)

johannes

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