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On 2011-01-01T20:48:16+00:00 James wrote:

Description of problem:

Roughly every 5-20 minutes or so (give or take) my Dell Adamo 13 (black)
will hard lock.

The last messages in the syslog before the reboot (consistently) are:

Jan  1 14:03:33 emma kernel: [  350.187460] iwlagn 0000:04:00.0: BA scd_flow 0 
does not match txq_id 10
Jan  1 14:03:35 emma kernel: [  352.917520] iwlagn 0000:04:00.0: low ack count 
detected, restart firmware
Jan  1 14:03:35 emma kernel: [  352.917531] iwlagn 0000:04:00.0: On demand 
firmware reload
Jan  1 14:03:35 emma kernel: [  352.972646] iwlagn 0000:04:00.0: Stopping AGG 
while state not ON or starting
Jan  1 14:03:35 emma kernel: [  352.972656] iwlagn 0000:04:00.0: queue number 
out of range: 0, must be 10 to 19
Jan  1 14:04:42 emma kernel: imklog 4.6.3, log source = /proc/kmsg started.
[boot continues as normal]

Version-Release number of selected component (if applicable):

2.6.35.10-74.fc14.x86_64

How reproducible:

Inconsistent (I believe without better evidence that it's a faulty
response to some kind of palpable change in the wifi environment), but
when it happens it always has the same/similar log messages (or
sometimes the "AGG" line is cut-off halfway)

I'm willing to run a kdump kernel until I have a legit trace for this
(having to randomly reboot my primary machine every 5 minutes makes this
a priority for me), but will need instructions.


Steps to Reproduce:
1. Boot System
2. Wait.
3. Randomly loose the code you were working on for the last couple minutes.


Actual results:

Crashy fun time.


Expected results:

Boring work.


Additional info:

I'm a Leo.

Wait, did you mean additional info about the problem? In that case, if
audio is playing it replays the last couple seconds of buffer on a loop
until I button-for-7s the machine---audio is not always playing,
however.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/53

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On 2011-01-03T09:43:08+00:00 Stanislaw wrote:

There are two patches that may help:
https://bugzilla.kernel.org/attachment.cgi?id=38502
http://marc.info/?l=linux-wireless&m=129310430012942&w=2

I will prepare test kernel with them ...

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/54

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On 2011-01-03T15:33:57+00:00 Stanislaw wrote:

Please test both these kernels and share your impression:
http://koji.fedoraproject.org/koji/taskinfo?taskID=2697824
http://koji.fedoraproject.org/koji/taskinfo?taskID=2698228

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/55

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On 2011-01-05T11:27:44+00:00 Kari wrote:

I'm affected by the same problem, installing kernel from
http://koji.fedoraproject.org/koji/taskinfo?taskID=2698228 now.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/56

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On 2011-01-05T11:42:39+00:00 Kari wrote:

This kernel fixes the problem for me (didn't test the other build).

[khautio@kha ~]$ uname -a
Linux kha 2.6.35.10-75.irq.fc14.i686 #1 SMP Mon Jan 3 14:49:06 UTC 2011 i686 
i686 i386 GNU/Linux

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/57

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On 2011-01-05T12:17:53+00:00 James wrote:

The irq build didn't fix my issue, I'm trying the low_ack kernel now.

Jan  4 16:01:07 emma kernel: [    0.000000] Linux version 
2.6.35.10-75.irq.fc14.x86_64 (mockbu...@x86-17.phx2.fedoraproject.org) (gcc 
version 4.5.1 20100924 (Red Hat 4.5.1-4) (GCC) ) #1 SMP Mon Jan 3 14:34:56 UTC 
2011
[...]
Jan  4 17:37:37 emma kernel: [ 5810.255040] iwlagn 0000:04:00.0: 
iwlagn_tx_agg_start on ra = 00:25:9c:d2:4d:a0 tid = 0
Jan  4 17:37:44 emma kernel: [ 5816.994056] iwlagn 0000:04:00.0: BA scd_flow 0 
does not match txq_id 10
Jan  4 17:37:45 emma kernel: [ 5818.095818] iwlagn 0000:04:00.0: BA scd_flow 0 
does not match txq_id 10
Jan  4 17:37:46 emma kernel: [ 5819.064689] iwlagn 0000:04:00.0: low ack count 
detected, restart firmware
Jan  4 17:37:46 emma kernel: [ 5819.064701] iwlagn 0000:04:00.0: On demand 
firmware reload
Jan  4 17:37:46 emma kernel: [ 5819.119974] iwlagn 0000:04:00.0: Stopping AGG 
while state not ON or starting
Jan  4 17:37:46 emma kernel: [ 5819.119986] iwlagn 0000:04:00.0: queue number 
out of range: 0, must be 10 to 19
Jan  4 17:38:01 emma kernel: [ 5834.658906] iwlagn 0000:04:00.0: 
iwlagn_tx_agg_start on ra = 00:25:9c:d2:4d:a0 tid = 0
Jan  4 17:38:04 emma kernel: [ 5837.085846] iwlagn 0000:04:00.0: low ack count 
detected, restart firmware
Jan  4 17:38:04 emma kernel: [ 5837.085853] iwlagn 0000:04:00.0: On demand 
firmware reload
Jan  4 17:38:04 emma kernel: [ 5837.136528] iwlagn 0000:04:00.0: Stopping AGG 
while state not ON or starting
Jan  4 17:38:04 emma kernel: [ 5837.136535] iwlagn 0000:04:00.0: queue number 
out of range: 0, must be 10 to 19
Jan  4 17:42:51 emma kernel: imklog 4.6.3, log source = /proc/kmsg started.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/58

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On 2011-01-07T09:50:00+00:00 Stanislaw wrote:

There is other similar bug 667459 report, that point the hard lock problem is 
on mac80211 layer. Please test this kernel and report back:
http://koji.fedoraproject.org/koji/taskinfo?taskID=2704610

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/59

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On 2011-01-12T12:47:58+00:00 Stanislaw wrote:

James, any news on comment 6 (also you can try official build with patch
http://koji.fedoraproject.org/koji/buildinfo?buildID=213595 if you wish).

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/60

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On 2011-01-12T13:16:29+00:00 James wrote:

I haven't tested the comment 6 build yet---it will be another week
before I can, unfortunately---but I did see the same problem with the
low_ack kernel.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/61

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On 2011-01-12T13:48:53+00:00 Stanislaw wrote:

Please save packages you need from comment 6 as koji can remove these
files automaticly. With low_ack kernel at least :low ack count detected,
restart firmware" should gone.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/62

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On 2011-01-12T13:55:43+00:00 James wrote:

Got it, thanks.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/63

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On 2011-01-12T14:01:32+00:00 Kari wrote:

I'm going to test comment 7 build now

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/64

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On 2011-02-11T13:52:49+00:00 Stanislaw wrote:

Kari and/or James could you test driver from upstream with some my patches:
https://bugzilla.redhat.com/show_bug.cgi?id=648732#c21

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/65

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On 2011-05-09T19:28:53+00:00 Stanislaw wrote:

Posted to fedora and stable.

http://lists.fedoraproject.org/pipermail/kernel/2011-May/003091.html

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/70

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On 2011-05-16T04:46:11+00:00 Fedora wrote:

kernel-2.6.38.6-27.fc15 has been submitted as an update for Fedora 15.
https://admin.fedoraproject.org/updates/kernel-2.6.38.6-27.fc15

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/73

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On 2011-05-17T05:36:54+00:00 Fedora wrote:

Package kernel-2.6.38.6-27.fc15:
* should fix your issue,
* was pushed to the Fedora 15 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing kernel-2.6.38.6-27.fc15'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/kernel-2.6.38.6-27.fc15
then log in and leave karma (feedback).

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/74

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On 2011-05-19T05:10:45+00:00 Fedora wrote:

kernel-2.6.38.6-27.fc15 has been pushed to the Fedora 15 stable
repository.  If problems still persist, please make note of it in this
bug report.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/75

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On 2011-08-17T17:38:29+00:00 Fedora wrote:

kernel-2.6.35.14-95.fc14 has been submitted as an update for Fedora 14.
https://admin.fedoraproject.org/updates/kernel-2.6.35.14-95.fc14

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/81

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On 2011-08-23T04:36:47+00:00 Fedora wrote:

kernel-2.6.35.14-95.fc14 has been pushed to the Fedora 14 stable
repository.  If problems still persist, please make note of it in this
bug report.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/575492/comments/83


** Changed in: linux (Fedora)
       Status: Unknown => Fix Released

** Changed in: linux (Fedora)
   Importance: Unknown => Critical

** Bug watch added: Red Hat Bugzilla #648732
   https://bugzilla.redhat.com/show_bug.cgi?id=648732

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/575492

Title:
  Intel 5100 AGN wireless connection bug

Status in linux package in Ubuntu:
  Fix Released
Status in Debian:
  Confirmed
Status in linux package in Fedora:
  Fix Released

Bug description:
  I have a Lenovo ThinkPad X200 which equipped with Intel PRO/Wireless
  5100 AGN adapter.  When running Ubuntu 10.04 for a while, say 15
  minutes or longer, the adapter cannot transmit data or even cannot
  reconnect to the router when it was disconnected.  My dd-wrt router
  shows that there are some errors when the data is transmitting.

  The worst thing is that the wireless card would be disabled and could
  not be used again until I boot the notebook computer with Windows
  system to activate the wireless adapter.

  I searched from the Google and found that someone out there has the
  similar problem.  The link is as the following :

  http://ubuntuforums.org/showthread.php?t=1470820

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