Public bug reported:
My WLAN connection suddenly dropped, and would not work again before
reboot. There was no obvious cause - last standby/resume was a few hours
ago, I wasn't transferring much data nor reconnecting or anything.
At the same time with the crash, kworker/0:0 started using about 90%
CPU, according to top. I then suspended-to-ram, which stopped the CPU
hogging but didn't fix the connection. After that, I tried reloading
iwl4965 and associated modules (mac80211, cfg80211) and suspend-to-disk.
Nothing helped, until I shut down the system and rebooted.
Attached is a syslog extract "syslog-iwl4965-bug.txt". The connection
drops at timestamp 19:43.
I didn't have this issue with Oneiric, but when I upgraded to Precise it
occurred within a few days. I will see if it occurs again. Is there some
extra debug I could collect next time?
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-23-generic 3.2.0-23.36
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu5
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: petteri 2280 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf0500000 irq 46'
Mixer name : 'Realtek ALC268'
Components : 'HDA:10ec0268,1025011b,00100003
HDA:11c11040,1025011b,00100200'
Controls : 18
Simple ctrls : 10
Date: Tue Apr 24 20:42:18 2012
HibernationDevice: RESUME=UUID=ba38d6e9-3775-44f6-8bd9-6efdcbac30fe
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: Acer, inc. TravelMate 6292
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic
root=/dev/mapper/vg1-ubuntu ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-23-generic N/A
linux-backports-modules-3.2.0-23-generic N/A
linux-firmware 1.79
SourcePackage: linux
UpgradeStatus: Upgraded to precise on 2012-04-19 (4 days ago)
dmi.bios.date: 07/27/2007
dmi.bios.vendor: Acer
dmi.bios.version: v1.3303
dmi.board.name: Victoria
dmi.board.vendor: Acer, Inc.
dmi.board.version: Not Applicable
dmi.chassis.type: 1
dmi.chassis.vendor: Acer, Inc.
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAcer:bvrv1.3303:bd07/27/2007:svnAcer,inc.:pnTravelMate6292:pvrNotApplicable:rvnAcer,Inc.:rnVictoria:rvrNotApplicable:cvnAcer,Inc.:ct1:cvrN/A:
dmi.product.name: TravelMate 6292
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer, inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: apport-bug i386 precise
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https://bugs.launchpad.net/bugs/987950
Title:
iwl4965 "MAC is in deep sleep" suddenly without obvious cause
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