regression iwl3945/mac80211: association times out since 2.6.26-rc1

regression iwl3945/mac80211: association times out since 2.6.26-rc1

[m.s.tsirkin]

Hi!
In all  of 2.6.26-rc1, rc2 and rc3, my iwl3945 wifi card can't associate with my access point.
It does associate in 2.6.25.

under 2.6.-26-rc[1,2,3] wpa_supplicant reports:

	Trying to associate with 00:16:e3:ef:5d:f0 (SSID='' freq=0 MHz)
	Authentication with 00:00:00:00:00:00 timed out.

where under 2.6.25 I was associating with 
	Trying to associate with 00:16:e3:ef:5d:f0 (SSID='SIEMENS-EF5DF0' freq=2437 MHz)
	Associated with 00:16:e3:ef:5d:f0
	WPA: Key negotiation completed with 00:16:e3:ef:5d:f0 [PTK=CCMP GTK=CCMP]

I tried bisecting, and I got as far as
git-bisect good 4b119e21d0c66c22e8ca03df05d9de623d0eb50f
git-bisect bad 96d510566e4908f77f03ff1436c78ae7162a17d0

but a point between these 2 commits gets me iwl driver that hangs kernel
when it's loaded, so I gave up on bisecting at this point.
Still this leaves us with 91 candidates that might be introducing the regression
(get their list with git log
 4b119e21d0c66c22e8ca03df05d9de623d0eb50f..96d510566e4908f77f03ff1436c78ae7162a17d0)

Additional info:

I get this in dmesg

[   99.153033] ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 17 (level, low) -> IRQ 17
[   99.204031] PM: Adding info for No Bus:iwl-phy1:radio
[   99.204031] Registered led device: iwl-phy1:radio
[   99.204031] PM: Adding info for No Bus:iwl-phy1:assoc
[   99.204031] Registered led device: iwl-phy1:assoc
[   99.204031] PM: Adding info for No Bus:iwl-phy1:RX
[   99.204031] Registered led device: iwl-phy1:RX
[   99.204031] PM: Adding info for No Bus:iwl-phy1:TX
[   99.204031] Registered led device: iwl-phy1:TX
[   99.220405] ADDRCONF(NETDEV_UP): wlan0: link is not ready

and even though the led now lights up, there's no association.

portions of .config: 2.6.26-rc3:

CONFIG_IWLWIFI=m
CONFIG_IWLCORE=m
# CONFIG_IWLWIFI_LEDS is not set
CONFIG_IWLWIFI_RFKILL=y
# CONFIG_IWL4965 is not set
CONFIG_IWL3945=m
CONFIG_IWL3945_SPECTRUM_MEASUREMENT=y
CONFIG_IWL3945_LEDS=y
CONFIG_IWL3945_DEBUG=y

2.6.25:
# CONFIG_IWL4965 is not set
CONFIG_IWL3945=m
CONFIG_IWL3945_QOS=y
CONFIG_IWL3945_SPECTRUM_MEASUREMENT=y
CONFIG_IWL3945_DEBUG=y


What kind of additional information would be useful for debugging this regression?

Thanks!

-- 
MST

Re: regression iwl3945/mac80211: association times out since 2.6.26-rc1

[Michael S. Tsirkin]

FYI, I created an item in bugzilla to track this
http://bugzilla.kernel.org/show_bug.cgi?id=10765

Re: regression iwl3945/mac80211: association times out since 2.6.26-rc1

[Michael S. Tsirkin]

On Wed, May 21, 2008 at 08:47:44AM +0300, Michael S. Tsirkin wrote:
> FYI, I created an item in bugzilla to track this
> http://bugzilla.kernel.org/show_bug.cgi?id=10765

As requested, more configuration and log files have been attached
to this item.

Re: regression iwl3945/mac80211: association times out since 2.6.26-rc1

[Tomas Winkler]

On Sat, May 24, 2008 at 9:29 PM, Michael S. Tsirkin
<m.s.tsirkin@gmail.com> wrote:
> On Wed, May 21, 2008 at 08:47:44AM +0300, Michael S. Tsirkin wrote:
>> FYI, I created an item in bugzilla to track this
>> http://bugzilla.kernel.org/show_bug.cgi?id=10765
>
> As requested, more configuration and log files have been attached
> to this item.

It looks like also this issue should be fixed by ' mac80211: reorder
channel and freq reporting in wext scan report' patch.
http://article.gmane.org/gmane.linux.kernel.wireless.general/15177
Please try.
Thanks
Tomas

Re: regression iwl3945/mac80211: association times out since 2.6.26-rc1

[Michael S. Tsirkin]

On Sun, May 25, 2008 at 02:24:28AM +0300, Tomas Winkler wrote:
> On Sat, May 24, 2008 at 9:29 PM, Michael S. Tsirkin
> <m.s.tsirkin@gmail.com> wrote:
> > On Wed, May 21, 2008 at 08:47:44AM +0300, Michael S. Tsirkin wrote:
> >> FYI, I created an item in bugzilla to track this
> >> http://bugzilla.kernel.org/show_bug.cgi?id=10765
> >
> > As requested, more configuration and log files have been attached
> > to this item.
> 
> It looks like also this issue should be fixed by ' mac80211: reorder
> channel and freq reporting in wext scan report' patch.
> http://article.gmane.org/gmane.linux.kernel.wireless.general/15177
> Please try.
> Thanks
> Tomas

I can confirm that the patch linked above has solved the regression for me.
Is it queued for 2.6.26?

-- 
MST

Re: regression iwl3945/mac80211: association times out since 2.6.26-rc1

[Tomas Winkler]

On Mon, May 26, 2008 at 8:42 AM, Michael S. Tsirkin
<m.s.tsirkin@gmail.com> wrote:
> On Sun, May 25, 2008 at 02:24:28AM +0300, Tomas Winkler wrote:
>> On Sat, May 24, 2008 at 9:29 PM, Michael S. Tsirkin
>> <m.s.tsirkin@gmail.com> wrote:
>> > On Wed, May 21, 2008 at 08:47:44AM +0300, Michael S. Tsirkin wrote:
>> >> FYI, I created an item in bugzilla to track this
>> >> http://bugzilla.kernel.org/show_bug.cgi?id=10765
>> >
>> > As requested, more configuration and log files have been attached
>> > to this item.
>>
>> It looks like also this issue should be fixed by ' mac80211: reorder
>> channel and freq reporting in wext scan report' patch.
>> http://article.gmane.org/gmane.linux.kernel.wireless.general/15177
>> Please try.
>> Thanks
>> Tomas
>
> I can confirm that the patch linked above has solved the regression for me.
> Is it queued for 2.6.26?

Hope so, it should go also to 25 If I remember someone posted version
that matched the old file name
as well.
Thanks
Tomas