linux-kernel - Re: iwl4965 regression since 2.6.24

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Message-ID: <20080423221123.GC17022@mail.oracle.com>
Date:	Wed, 23 Apr 2008 15:11:23 -0700
From:	Joel Becker <Joel.Becker@...cle.com>
To:	Lukas Hejtmanek <xhejtman@....muni.cz>
Cc:	linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org
Subject: Re: iwl4965 regression since 2.6.24

On Wed, Apr 23, 2008 at 02:41:06PM +0200, Lukas Hejtmanek wrote:
> as of 2.6.25 kernel, the intel driver iwl4965 has serious troubles to
> associate with AP. I must many times set essid till the association is done.
> 
> Moreover, it seems that it is unable to associate with different AP (using the
> same SSID). I must remove the module completly to be able to associate to the
> different AP. I think it is big regression.

	I am experiencing the same problems on 2.6.24.  I have also
noticed that it cannot recover association after waking from sleep.  I
must set the essid before it will talk to the AP.  I always see this in
dmesg at the time:

  ADDRCONF(NETDEV_UP): wlan0: link is not ready

After I explicitly re-specify the ssid, I see this in dmesg:

  ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

	To clarify: when the interface comes up after boot or wake, it
associates but will not actually send data (Destination Host
Unreachable).  I must run "iwconfig wlan0 essid <ssid>".  After that, it
works.  When I move to a new network with a different access point, I
must unload and reload the module.
	Hopefully, I'll get a chance to run with debugging and send
along some logs.

Thinkpad x61s,
03:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN Network Connection (rev 61)


Joel

-- 

"One of the symptoms of an approaching nervous breakdown is the
 belief that one's work is terribly important."
         - Bertrand Russell 

Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker@...cle.com
Phone: (650) 506-8127
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