wireless hangup for iwlagn kernel module, if 802.11n enabled

Bug #602649 reported by nevergone
28
This bug affects 4 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

Hello,

My computer is Lenovo Thinkpad T400, and my operating system: Ubuntu Lucid (10.04) 64 bit, fully updated, kernel version: 2.6.32-23-generic
Wireless hangup, and iwlagn kernel module crashing, if 802.11n enabled.

fast workarond:

rmmod iwlagn
modprobe iwlagn 11n_disable50=1

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-23-generic 2.6.32-23.37
Regression: No
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-23.37-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-23-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: never 2166 F.... pulseaudio
 /dev/snd/pcmC0D0p: never 2166 F...m pulseaudio
CRDA: Error: [Errno 2] Nincs ilyen fájl vagy könyvtár
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfc020000 irq 17'
   Mixer name : 'Conexant CX20561 (Hermosa)'
   Components : 'HDA:14f15051,17aa211c,00100000'
   Controls : 14
   Simple ctrls : 7
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7VHT14WW-1.03'
   Mixer name : 'ThinkPad EC 7VHT14WW-1.03'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Wed Jul 7 12:35:28 2010
Frequency: Once a day.
HibernationDevice: RESUME=UUID=e2eac35e-99cb-471e-9a33-344744000a8f
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
MachineType: LENOVO 6474DU8
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-23-generic root=UUID=dd27851c-a206-41bd-a531-ee5452d7b85a ro acpi_osi=Linux quiet splash
ProcEnviron:
 LANG=hu_HU.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.1
SourcePackage: linux
dmi.bios.date: 10/13/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7UET79WW (3.09 )
dmi.board.name: 6474DU8
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7UET79WW(3.09):bd10/13/2009:svnLENOVO:pn6474DU8:pvrThinkPadT400:rvnLENOVO:rn6474DU8:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 6474DU8
dmi.product.version: ThinkPad T400
dmi.sys.vendor: LENOVO

Revision history for this message
nevergone (nevergone) wrote :
Revision history for this message
Jeremy Foshee (jeremyfoshee) wrote :

Hi nevergone,

If you could also please test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

tags: added: kj-triage
Changed in linux (Ubuntu):
status: New → Incomplete
Revision history for this message
nevergone (nevergone) wrote :

Upstream testing:

v2.6.33.5-lucid -> correct
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.33.5-lucid/

v2.6.34-lucid -> correct, but the transfer a bit slowly
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.34-lucid/

v2.6.35-rc1-lucid -> correct, but the transfer a bit slowly
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.35-rc1-lucid/

tags: removed: needs-upstream-testing
Revision history for this message
nevergone (nevergone) wrote :

somebody?

Revision history for this message
nevergone (nevergone) wrote :

Kernel 2.6.32-24-generic is affected.
dmesg attached.

Revision history for this message
nevergone (nevergone) wrote :

somebody?

nevergone (nevergone)
Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Revision history for this message
Gustave Salut (gustavesalut-launchpad) wrote :

Dear all,

I would like to report a bug happening with the Wlan connection of my laptop hanging up sporadically, be it out of the blue, or after resuming from hibernate.

I suppose it is the same bug nevergone reported.

It happens with my laptop, a Lenovo X61t (Intel 802.11agn) running LinuxMint9(64bit) as well as with my partners T60 (Intel 802.11abg wireless) running LinuxMint9(32bit) and a friends T61 running Debian Lenny. This friend (who is administrating computers at my work) gave me a workaround skript which simply reloads the concerned kernel-modules.

#!/bin/bash

if [ "$UID" != 0 ]; then #get necessary rights
  exec sudo "$0" "$@" || exit 1
fi

ifdown wlan0 #usually not necessary, as it is already down
sleep 1
rmmod iwlagn iwlcore #on the Debian Lenny, it is rather "rmmod iwl4965 iwlcore rfkill"
#s2ram #my friend pretetends he sometimes has to suspend again to get it to work, but this may be a myth
#read -p "Suspend now." a
sleep 1
#pm-suspend
#sleep 5
modprobe iwlagn
sleep 1
restart network-manager #so that the connection comes up again automatically

This works fine, but remains annoying.

Today, the hang-up happened out of the blue again, and I thought this might be the time for my first bug-report. Please be indulgent if this is not the same bug. etc.

I attached all logs with entries from these few minutes. There are

messages
syslog
daemon.log
debug
kern.log
mail.info
mail.log,

all in one file.

What happened:
At 18:21, I got this pop-up message that I was deconnected. Before, a download was underway.
At 18:22, I was asked for the password of the connection, which I denied to enter, knowing that it would not work.

Meanwhile, my partner continued surfing unbothered.

Revision history for this message
penalvch (penalvch) wrote :

nevergone, thank you for reporting this and helping make Ubuntu better. This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux <replace-with-bug-number>

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

tags: added: needs-upstream-testing
Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
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