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

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Date:	Fri, 06 Jun 2008 18:57:57 +0300
From:	Thomas Backlund <tmb@...driva.org>
To:	Dan Williams <dcbw@...hat.com>
CC:	Tomas Winkler <tomasw@...il.com>, 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

Dan Williams skrev:
> On Fri, 2008-06-06 at 18:12 +0300, Tomas Winkler wrote:
>> 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?
> 
> Yeah, the supplicant log he posted clearly shows that the GTK is TKIP.
> 
> > 1212763152.516781: wpa_driver_wext_set_key: alg=2 key_idx=1 set_tx=0 seq_len=6 key_len=32
>> 1212763152.516790: WPA: Key negotiation completed with 00:xx:xx:xx:xx:xx [PTK=CCMP GTK=TKIP]
> 

The AP is actually set for TKIP+AES

BTW, is that better or worse than a clean AES ?
I'm reading up on it, but I get a lot of conflicting info...

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

Thomas
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