8086:4230 [Lenovo ThinkPad T61] WiFi hw hangs

[Istvan Toth]

iwl4965 wireless hardware hangs randomly (sometimes very rarely, sometimes very often) with 'MAC is in deep sleep!' message. (syslog attached) the wireless led turns off also.

reloading the module doesn't help. (syslog attached)

only rebooting solves the issue.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-26-generic 3.2.0-26.41
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19
Uname: Linux 3.2.0-26-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: istvan 2130 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfe220000 irq 49'
   Mixer name : 'Analog Devices AD1984'
   Components : 'HDA:11d41984,17aa20d7,00100400'
   Controls : 32
   Simple ctrls : 20
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7KHT24WW-1.08'
   Mixer name : 'ThinkPad EC 7KHT24WW-1.08'
   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: Sat Jun 30 23:41:27 2012
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=c520c7a6-f648-456c-962a-12ae1aa0b830
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: LENOVO 76641FG
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=hu_HU.UTF-8
 SHELL=/bin/bash
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-26-generic root=UUID=e689c33b-901e-4855-a19d-f054fc989fc6 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-26-generic N/A
 linux-backports-modules-3.2.0-26-generic N/A
 linux-firmware 1.79
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/08/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 7LETC7WW (2.27 )
dmi.board.name: 76641FG
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:bvr7LETC7WW(2.27):bd04/08/2010:svnLENOVO:pn76641FG:pvrThinkPadT61:rvnLENOVO:rn76641FG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 76641FG
dmi.product.version: ThinkPad T61
dmi.sys.vendor: LENOVO

[Istvan Toth (tothi)]

i've tested upstream version 2012-06-30-quantal:
http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/2012-06-30-quantal/

unfortunately i've experienced the same bug.

the wifi hw lost with 'MAC is in deep sleep!' messages just like with the stable 'precise' version kernel...

[Istvan Toth (tothi)]

Christopher, I've tested v3.5-rc5-quantal:

i've experienced the same bug...

the wifi hw lost after some hours activity with the same 'MAC is in deep sleep!' messages. :(

[Istvan Toth (tothi)]

i've reported upstream following your guidelines:

https://bugzilla.kernel.org/show_bug.cgi?id=44251

Kernel Bug Tracker – Bug 44251

[penalvch (penalvch)]

Istvan Toth, as per http://download.lenovo.com/express/ddfm.html an update is available for your BIOS (2.30). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and just provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful.

For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette .

Thank you for your understanding.