linux-kernel - Re: iwl4965 oops in 2.6.26-rc5 x86

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Date:	Sat, 07 Jun 2008 00:43:59 +0300
From:	Thomas Backlund <tmb@...driva.org>
To:	Tomas Winkler <tomasw@...il.com>
CC:	Ian Schram <ischram@...enet.be>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
Subject: Re: iwl4965 oops in 2.6.26-rc5 x86_64

Tomas Winkler skrev:
> On Fri, Jun 6, 2008 at 5:51 PM, Thomas Backlund <tmb@...driva.org> wrote:
>> Tomas Winkler skrev:
>>> On Fri, Jun 6, 2008 at 3:33 PM, Thomas Backlund <tmb@...driva.org> wrote:
>>>> Thomas Backlund skrev:
>>>>> Tomas Winkler skrev:
>>>>>> On Fri, Jun 6, 2008 at 3:44 AM, Ian Schram <ischram@...enet.be> wrote:
>>>>>>> Isn't this the Oops Joonwoo Park wanted to patch with
>>>>>>>
>>>>>>> "[PATCH] iwlwifi: fix oops on wep key insertion" 27/5/2008
>>>>>>>
>>>>>>> invalid length of webkey that would/should be handled in mac80211?
>>>>>>>
>>>>>>> ian
>>>>>> Yes, it looks like.
>>>>> Ummm, what has a wep key to do with me trying to access a WPA2-Personal
>>>>> encrypted net ?
>>> Not sure yet, but mac is trying to assign default/static wep key.
>>>
>>> :iwlcore:iwl_send_static_wepkey_cmd+0xcb/0xd5
>>> :iwlcore:iwl_set_default_wep_key+0xa2/0xbc
>>>
>>> Try to set the encryption explicitly
>>> network={
>>>    psk="*************************"
>>>    scan_ssid=1
>>>    ssid="dlink"
>>>    pairwise=CCMP
>>>   group=CCMP
>>>  }
>>>
>>>
>> That didn't help at all.
>>
>> What's more it prevented the wifi to work on 2.6.24.7 so I had to remove the
>> lines again...
>>
> So what's your AP configuration TKIP?
> 

I've switched to clean WPA2-AES on the AP, but it does not do any 
difference... I still get the oops...

> Second try also with sw decryption:
> 
> in /etc/modprobe.conf
> options iwl4965 swcrypto=1
> 


That works.
I now run a clean 2.6.26-rc5


I also tried to bisect between 2.6.25 and 2.6.26-rc1 and ended up with:

[root@...0g linux-2.6]# git bisect good
8318d78a44d49ac1edf2bdec7299de3617c4232e is first bad commit
commit 8318d78a44d49ac1edf2bdec7299de3617c4232e
Author: Johannes Berg <johannes@...solutions.net>
Date:   Thu Jan 24 19:38:38 2008 +0100

     cfg80211 API for channels/bitrates, mac80211 and driver conversion



Any more I can provide to help finding the bug ?
--
Thomas
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