linux-kernel - Re: [v3.9.x stable regression, bisected] iwlwifi/iwldvm has a 30s delay in EAP authentication

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Date:	Wed, 22 May 2013 11:17:45 +0300
From:	Emmanuel Grumbach <egrumbach@...il.com>
To:	kkhere.geo+suse@...il.com
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-wireless <linux-wireless@...r.kernel.org>, gregkh@...ah.com
Subject: Re: [v3.9.x stable regression, bisected] iwlwifi/iwldvm has a 30s
 delay in EAP authentication

On Tue, May 21, 2013 at 5:09 PM, Kshitij Kulshreshtha
<kkhere.geo@...il.com> wrote:
> Hello,
>
> I am currently running the openSUSE Tumbleweed distribution and have a
> problem starting with the kernel v3.9.1 and also with kernel v3.9.2.
>
> The iwldvm driver has an artificial delay of 30s when authenticating
> with a radius server using EAP-TLS. This was not the case using kernel
> v3.9.
>
> I bisected the problem using local builds of the tumbleweed desktop
> configuration. This is the result:
>
> c30f37f8f1f8d06c142d67ba74955fd48b5cf5a4 is the first bad commit
> commit c30f37f8f1f8d06c142d67ba74955fd48b5cf5a4
> Author: Emmanuel Grumbach <emmanuel.grumbach@...el.com>
> Date:   Wed Apr 17 09:47:00 2013 +0300
>
>     iwlwifi: dvm: don't send zeroed LQ cmd
>
>     commit 63b77bf489881747c5118476918cc8c29378ee63 upstream.
>
>     When the stations are being restored because of unassoc
>     RXON, the LQ cmd may not have been initialized because it
>     is initialized only after association.
>     Sending zeroed LQ_CMD makes the fw unhappy: it raises
>     SYSASSERT_2078.
>
>     Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@...el.com>
>     Reviewed-by: Johannes Berg <johannes.berg@...el.com>
>     [move zero_lq and make static const]
>     Signed-off-by: Johannes Berg <johannes.berg@...el.com>
>     Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
>

Thanks for the bisection.
Can you please try the patch in
https://bugzilla.kernel.org/show_bug.cgi?id=58341 and report?
Thanks
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