linux-kernel - Re: wifi iwlagn fails to authenticate after wake from suspend

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Date:	Tue, 25 Oct 2011 23:27:05 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Gene Smith <gds@...rtertn.net>
cc:	wwguy <wey-yi.w.guy@...el.com>, ilw@...ux.intel.com,
	linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org
Subject: Re: wifi iwlagn fails to authenticate after wake from suspend

On Wed, 26 Oct 2011, Gene Smith wrote:

> Now after upgrade to Ubuntu 11.10 when resume from suspend, wifi fails to
> reconnect saying waiting for authentication. When I use older kernel, 2.4.38
> instead of the new 3.0.0, it still works OK. If using ethernet, after wake
> from suspend it always works OK.
> 

So we need to bisect between 2.4.38 and 3.0.0? :)  I'm running ubuntu 
11.10 on a home laptop so I'll give this a try as well when I can if I can 
put up with unity for that long.

> More details on this bug are here
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/880648
> and here
> https://bugzilla.redhat.com/show_bug.cgi?id=7374
> 
> Tried new Ubuntu kernel 3.1-rc10 did not help. Did not try an alternate kernel
> with Fedora 15.
> 
> The common failure messages seen with Ubuntu and Fedora is this:
> 
> <info> (wlan0): device state change: need-auth -> failed (reason 'no-secrets')
> [60 120 7]
> Oct 24 01:20:00 hplt NetworkManager[1016]: <warn> Activation (wlan0) failed
> for access point (dbnet)
> 
> After this occurs, no further attempt to authenticate wifi occur and a red X
> appears over the wifi icon. I must then use ethernet (or reboot).
> 

Adding wireless folks to the cc.
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