linux-kernel - Re: 3.1.0-rc9+ : wlan stops working w/o any error messages

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Date:	Sat, 15 Oct 2011 14:21:59 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Toralf Förster <toralf.foerster@....de>
cc:	werner <w.landgraf@...ru>, Wey-Yi Guy <wey-yi.w.guy@...el.com>,
	ilw@...ux.intel.com, linux-wireless@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: 3.1.0-rc9+ : wlan stops working w/o any error messages

On Sat, 15 Oct 2011, Toralf Förster wrote:

> With a ThinkPad T400 with "Intel Corporation PRO/Wireless 5100 AGN [Shiloh] 
> Network Connection" I experienced few times in the last week that the suddenly 
> the network stops to work - no messages in /var/log/messages nor any other 
> outout. Only  a restart of the network services helped
> 
> n22 ~ # uname -a
> Linux n22 3.1.0-rc9+ #1 SMP Fri Oct 14 19:21:56 CEST 2011 i686 Intel(R) 
> Core(TM)2 Duo CPU P8600 @ 2.40GHz GenuineIntel GNU/Linux
> 
> It is an almost stable Gentoo.
> 
> Anybody else made similar experiences ?
> 

It looks like werner is reporting a similar problem in 
https://lkml.org/lkml/2011/10/15/67 but with a different laptop, 
information is vague in that regression report.

Adding him, Wey-Yi Guy from Intel, and linux-wireless mailing list to the 
cc.

What's the last kernel prior to 3.1-rc9 that worked for you?

What does "iwconfig" show?

What does "dmesg | grep iwlagn" show?