[Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12414
Subject		: iwl4965 cannot use "ap auto" on latest 2.6.28/29?
Submitter	: Jeff Chua <jeff.chua.linux@gmail.com>
Date		: 2009-01-05 4:13 (7 days old)
References	: http://marc.info/?l=linux-kernel&m=123112882127823&w=4

Re: [Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Jeff Chua]

On Sun, Jan 11, 2009 at 7:16 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> This message has been generated automatically as a part of a report
> of recent regressions.
>
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
>
>
> Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12414
> Subject         : iwl4965 cannot use "ap auto" on latest 2.6.28/29?
> Submitter       : Jeff Chua <jeff.chua.linux@gmail.com>
> Date            : 2009-01-05 4:13 (7 days old)
> References      : http://marc.info/?l=linux-kernel&m=123112882127823&w=4

Latest git pull still not fixed.

Jeff.

Re: [Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Rafael J. Wysocki]

On Sunday 11 January 2009, Jeff Chua wrote:
> On Sun, Jan 11, 2009 at 7:16 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> >
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> >
> >
> > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12414
> > Subject         : iwl4965 cannot use "ap auto" on latest 2.6.28/29?
> > Submitter       : Jeff Chua <jeff.chua.linux@gmail.com>
> > Date            : 2009-01-05 4:13 (7 days old)
> > References      : http://marc.info/?l=linux-kernel&m=123112882127823&w=4
> 
> Latest git pull still not fixed.

Thanks for the update.

Rafael

[Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12414
Subject		: iwl4965 cannot use "ap auto" on latest 2.6.28/29?
Submitter	: Jeff Chua <jeff.chua.linux@gmail.com>
Date		: 2009-01-05 4:13 (15 days old)
References	: http://marc.info/?l=linux-kernel&m=123112882127823&w=4

[Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12414
Subject		: iwl4965 cannot use "ap auto" on latest 2.6.28/29?
Submitter	: Jeff Chua <jeff.chua.linux@gmail.com>
Date		: 2009-01-05 4:13 (31 days old)
References	: http://marc.info/?l=linux-kernel&m=123112882127823&w=4

Re: [Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Jeff Chua]

On Wed, Feb 4, 2009 at 6:23 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12414
> Subject         : iwl4965 cannot use "ap auto" on latest 2.6.28/29?
> Submitter       : Jeff Chua <jeff.chua.linux@gmail.com>
> Date            : 2009-01-05 4:13 (31 days old)
> References      : http://marc.info/?l=linux-kernel&m=123112882127823&w=4

Latest linux git pull seems to behave slightly better. Restarting the
interface a few times fixes the problem 70% of the time. The rest of
the time, it can't associate with the AP.

Jeff.

Re: [Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Rafael J. Wysocki]

On Wednesday 04 February 2009, Jeff Chua wrote:
> On Wed, Feb 4, 2009 at 6:23 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12414
> > Subject         : iwl4965 cannot use "ap auto" on latest 2.6.28/29?
> > Submitter       : Jeff Chua <jeff.chua.linux@gmail.com>
> > Date            : 2009-01-05 4:13 (31 days old)
> > References      : http://marc.info/?l=linux-kernel&m=123112882127823&w=4
> 
> Latest linux git pull seems to behave slightly better. Restarting the
> interface a few times fixes the problem 70% of the time. The rest of
> the time, it can't associate with the AP.

Thanks for the update, there is a patch for you to test at
http://bugzilla.kernel.org/show_bug.cgi?id=12414#c3

Rafael

Re: [Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Jeff Chua]

On Thu, Feb 5, 2009 at 9:37 AM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> On Wednesday 04 February 2009, Jeff Chua wrote:
>> On Wed, Feb 4, 2009 at 6:23 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
>> > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12414
>> > Subject         : iwl4965 cannot use "ap auto" on latest 2.6.28/29?
>> > Submitter       : Jeff Chua <jeff.chua.linux@gmail.com>
>> > Date            : 2009-01-05 4:13 (31 days old)
>> > References      : http://marc.info/?l=linux-kernel&m=123112882127823&w=4
>>
>> Latest linux git pull seems to behave slightly better. Restarting the
>> interface a few times fixes the problem 70% of the time. The rest of
>> the time, it can't associate with the AP.
>
> Thanks for the update, there is a patch for you to test at
> http://bugzilla.kernel.org/show_bug.cgi?id=12414#c3

Ok, will try that patch next weekend when I get home.

Thanks for the patch.

Jeff.

[Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12414
Subject		: iwl4965 cannot use "ap auto" on latest 2.6.28/29?
Submitter	: Jeff Chua <jeff.chua.linux@gmail.com>
Date		: 2009-01-05 4:13 (35 days old)
References	: http://marc.info/?l=linux-kernel&m=123112882127823&w=4

Re: [Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Jeff Chua]

On Wed, Feb 4, 2009 at 6:23 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12414
> Subject         : iwl4965 cannot use "ap auto" on latest 2.6.28/29?
> Submitter       : Jeff Chua <jeff.chua.linux@gmail.com>
> Date            : 2009-01-05 4:13 (31 days old)
> References      : http://marc.info/?l=linux-kernel&m=123112882127823&w=4

I applied the patch
http://marc.info/?l=linux-wireless&m=123320213115108&w=2 and it seems
better now. One instant of not association out of 20 tries, but
reloading the modules seems to make it work again. So, let's just
close the case?


Here's part of the dmesg. Kernel is 2.6.29-rc5 with patch above applied.

wmaster0 (iwlagn): not using net_device_ops yet
phy0: Selected rate control algorithm 'iwl-agn-rs'
wlan0 (iwlagn): not using net_device_ops yet
iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
iwlagn 0000:03:00.0: irq 29 for MSI/MSI-X
iwlagn 0000:03:00.0: firmware: requesting iwlwifi-4965-2.ucode
iwlagn loaded firmware version 228.57.2.23
Registered led device: iwl-phy0:radio
Registered led device: iwl-phy0:assoc
Registered led device: iwl-phy0:RX
Registered led device: iwl-phy0:TX
iwlagn: TX Power requested while scanning!
iwlagn: Error sending TX power (-11)
wlan0: authenticate with AP xxxxxxxxxxxxx
wlan0: authenticated
wlan0: associate with AP xxxxxxxxxxxxxx
wlan0: RX AssocResp from xxxxxxxxxxxxxx (capab=0x471 status=0 aid=24)
wlan0: associated


Thanks,
Jeff.

Re: [Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Jeff Chua]

On Sat, Feb 14, 2009 at 7:41 PM, Jeff Chua <jeff.chua.linux@gmail.com> wrote:
> On Wed, Feb 4, 2009 at 6:23 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
>> Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12414
>> Subject         : iwl4965 cannot use "ap auto" on latest 2.6.28/29?
>> Submitter       : Jeff Chua <jeff.chua.linux@gmail.com>
>> Date            : 2009-01-05 4:13 (31 days old)
>> References      : http://marc.info/?l=linux-kernel&m=123112882127823&w=4
>
> I applied the patch
> http://marc.info/?l=linux-wireless&m=123320213115108&w=2 and it seems
> better now. One instant of not association out of 20 tries, but
> reloading the modules seems to make it work again. So, let's just
> close the case?

I tested on another AP (WAG200G ), and this one, it's failing to
associate more often. And I noticed that when it does associate, I
don't get these two lines ...

iwlagn: TX Power requested while scanning!
iwlagn: Error sending TX power (-11)



Here's a good run ...

iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 1.3.27ks
iwlagn: Copyright(c) 2003-2008 Intel Corporation
iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
iwlagn 0000:03:00.0: setting latency timer to 64
iwlagn: Detected Intel Wireless WiFi Link 4965AGN REV=0x4
iwlagn: Tunable channels: 11 802.11bg, 13 802.11a channels
wmaster0 (iwlagn): not using net_device_ops yet
phy0: Selected rate control algorithm 'iwl-agn-rs'
wlan0 (iwlagn): not using net_device_ops yet
iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
iwlagn 0000:03:00.0: irq 28 for MSI/MSI-X
iwlagn 0000:03:00.0: firmware: requesting iwlwifi-4965-2.ucode
iwlagn loaded firmware version 228.57.2.23
Registered led device: iwl-phy0:radio
Registered led device: iwl-phy0:assoc
Registered led device: iwl-phy0:RX
Registered led device: iwl-phy0:TX
wlan0: authenticate with AP xxxxxxxxxxxxx
wlan0: authenticate with AP xxxxxxxxxxxxx
wlan0: authenticate with AP xxxxxxxxxxxxx
wlan0: authenticated
wlan0: associate with AP xxxxxxxxxxxx
wlan0: RX AssocResp from xxxxxxxxxxxx (capab=0x471 status=0 aid=1)
wlan0: associated



Thanks,
Jeff.

Re: [Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Rafael J. Wysocki]

On Saturday 14 February 2009, Jeff Chua wrote:
> On Sat, Feb 14, 2009 at 7:41 PM, Jeff Chua <jeff.chua.linux@gmail.com> wrote:
> > On Wed, Feb 4, 2009 at 6:23 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> >> Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=12414
> >> Subject         : iwl4965 cannot use "ap auto" on latest 2.6.28/29?
> >> Submitter       : Jeff Chua <jeff.chua.linux@gmail.com>
> >> Date            : 2009-01-05 4:13 (31 days old)
> >> References      : http://marc.info/?l=linux-kernel&m=123112882127823&w=4
> >
> > I applied the patch
> > http://marc.info/?l=linux-wireless&m=123320213115108&w=2 and it seems
> > better now. One instant of not association out of 20 tries, but
> > reloading the modules seems to make it work again. So, let's just
> > close the case?
> 
> I tested on another AP (WAG200G ), and this one, it's failing to
> associate more often. And I noticed that when it does associate, I
> don't get these two lines ...
> 
> iwlagn: TX Power requested while scanning!
> iwlagn: Error sending TX power (-11)
> 
> 
> 
> Here's a good run ...
> 
> iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 1.3.27ks
> iwlagn: Copyright(c) 2003-2008 Intel Corporation
> iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
> iwlagn 0000:03:00.0: setting latency timer to 64
> iwlagn: Detected Intel Wireless WiFi Link 4965AGN REV=0x4
> iwlagn: Tunable channels: 11 802.11bg, 13 802.11a channels
> wmaster0 (iwlagn): not using net_device_ops yet
> phy0: Selected rate control algorithm 'iwl-agn-rs'
> wlan0 (iwlagn): not using net_device_ops yet
> iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
> iwlagn 0000:03:00.0: irq 28 for MSI/MSI-X
> iwlagn 0000:03:00.0: firmware: requesting iwlwifi-4965-2.ucode
> iwlagn loaded firmware version 228.57.2.23
> Registered led device: iwl-phy0:radio
> Registered led device: iwl-phy0:assoc
> Registered led device: iwl-phy0:RX
> Registered led device: iwl-phy0:TX
> wlan0: authenticate with AP xxxxxxxxxxxxx
> wlan0: authenticate with AP xxxxxxxxxxxxx
> wlan0: authenticate with AP xxxxxxxxxxxxx
> wlan0: authenticated
> wlan0: associate with AP xxxxxxxxxxxx
> wlan0: RX AssocResp from xxxxxxxxxxxx (capab=0x471 status=0 aid=1)
> wlan0: associated

Thanks for the updates.

Rafael

[Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12414
Subject		: iwl4965 cannot use "ap auto" on latest 2.6.28/29?
Submitter	: Jeff Chua <jeff.chua.linux@gmail.com>
Date		: 2009-01-05 4:13 (41 days old)
References	: http://marc.info/?l=linux-kernel&m=123112882127823&w=4

[Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12414
Subject		: iwl4965 cannot use "ap auto" on latest 2.6.28/29?
Submitter	: Jeff Chua <jeff.chua.linux@gmail.com>
Date		: 2009-01-05 4:13 (50 days old)
References	: http://marc.info/?l=linux-kernel&m=123112882127823&w=4

Re: [Bug 12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Jeff Chua]

On Thu, Feb 26, 2009 at 9:38 AM, Jeff Chua <jeff.chua.linux@gmail.com> wrote:
> On Thu, Feb 26, 2009 at 6:39 AM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
>>> http://bugzilla.kernel.org/show_bug.cgi?id=12414
>> Jeff, this is a "NEEDINFO" for you, please respond.
>
> I just tried it and still doesn't work. May be it's this particular
> AP, but I tried on another hidden AP and it's not much better.
>
> I'll try to bisect it. I know it works in 2.6.28.

Here's the commit that causes the Intel 4965 to not associate with a
hidden AP. Reverting this commit make 2.6.28-rc3 works again very
reliably -- getting associated to the AP after every iwlagn module
reload.

But when I reverted this commit in 2.6.29-rc6, my X61 can't associate
with the hidden AP. Some other thing is broken in between 2.6.28 -
2.6.29.

The only way to associate in 2.6.29-rcX is to force it manually with
"iwconfig wlan0 ap <mac addr of hidden ap>".

In 2.6.28, I could just specify the ssid and encrypted key using
iwconfig, and then set "iwconfig wlan0 ap auto channel auto" and
"iwlist scan" will find the hidden ap.

Test on both 2.6.28 and 2.6.29-rcx using same
iwlwifi-4965-ucode-228.57.2.23 and wireless_tools.30.pre7.

What's the best way to get this fixed? I've tried git bisect and
trying to revert the bad commit, but it doesn't compile.

drivers/net/wireless/iwlwifi/iwl-scan.c:746: error: 'struct iwl_priv'
has no member named 'essid_len'
drivers/net/wireless/iwlwifi/iwl-scan.c:750: error: 'struct iwl_priv'
has no member named 'essid_len'
drivers/net/wireless/iwlwifi/iwl-scan.c:751: error: 'struct iwl_priv'
has no member named 'essid_len'


Thanks,
Jeff.



commit a57a59f247b651e8ed6d3eeb7e2f9d83b83134c9
Author: Johannes Berg <johannes@sipsolutions.net>
Date:   Tue Oct 28 18:21:05 2008 +0100

    iwlwifi: remove implicit direct scan

    When an undirected scan is requested and iwlwifi is not associated but
    the user has set an SSID (and maybe was associated with that network at
    some point) then iwlwifi will assume the user wanted to scan for this
    SSID which seems wrong. Remove this code.

    Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
    Signed-off-by: John W. Linville <linville@tuxdriver.com>

Re: [Bug 12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Jeff Chua]

On Sat, Feb 28, 2009 at 7:24 AM, Jeff Chua <jeff.chua.linux@gmail.com> wrote:

>> I just tried it and still doesn't work. May be it's this particular
>> AP, but I tried on another hidden AP and it's not much better.

I just to clarify that this association problem only happens with
"hidden AP". 2.6.28 to 2.6.29-rcX works just fine with non-hidden AP.

Thanks,
Jeff.

[Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12414
Subject		: iwl4965 cannot use "ap auto" on latest 2.6.28/29?
Submitter	: Jeff Chua <jeff.chua.linux@gmail.com>
Date		: 2009-01-05 4:13 (58 days old)
References	: http://marc.info/?l=linux-kernel&m=123112882127823&w=4

[Bug #12414] iwl4965 cannot use "ap auto" on latest 2.6.28/29?

[Rafael J. Wysocki]

This message has been generated automatically as a part of a report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.28.  Please verify if it still should be listed and let me know
(either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12414
Subject		: iwl4965 cannot use "ap auto" on latest 2.6.28/29?
Submitter	: Jeff Chua <jeff.chua.linux@gmail.com>
Date		: 2009-01-05 4:13 (69 days old)
References	: http://marc.info/?l=linux-kernel&m=123112882127823&w=4