Ubuntu 10.04 freezes on heavy Wifi network load
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
Ubuntu freezes during heavy *wifi* network activity and/or when transfer rate gets high.
Gnome freezes, screen freezes, keyboard get unresponsive, network traffic is stopped, computer doesn't respond to ping, I can't ssh it, etc.
Only solution is a hard reset.
It happens for instance when:
- Download multiple files in Firefox
- Transferring files with other computers of my LAN
- backing up files over the network to a remote computer.
Low/moderate network activity works fine, for instance web browsing and keeping concurrent downloads to 1 or 2 at a time and as long transfer rate stay low my Ubuntu will never freeze.
If I switch to ethernet only, Ubuntu never freezes no matter what stress the network is put under.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-
Regression: Yes
Reproducible: Yes
ProcVersionSign
Uname: Linux 2.6.32-24-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
/dev/snd/
CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type
Card0.Amixer.info:
Card hw:0 'ICH5'/'Intel ICH5 with CMI9780 at irq 17'
Mixer name : 'C-Media Electronics CMI9780'
Components : 'AC97a:434d4969'
Controls : 41
Simple ctrls : 26
Card1.Amixer.info:
Card hw:1 'U0x46d0x8ad'/'USB Device 0x46d:0x8ad at usb-0000:00:1d.3-2, full speed'
Mixer name : 'USB Mixer'
Components : 'USB046d:08ad'
Controls : 3
Simple ctrls : 2
Card2.Amixer.info:
Card hw:2 'SAA7134'
Mixer name : 'SAA7134 Mixer'
Components : ''
Controls : 6
Simple ctrls : 3
Date: Thu Aug 12 19:38:43 2010
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
MachineType: MEDIONPC MS-7048
ProcCmdLine: BOOT_IMAGE=
ProcEnviron:
LANG=fr_FR.UTF-8
SHELL=/bin/bash
RelatedPackageV
SourcePackage: linux
dmi.bios.date: 02/12/2004
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: MS-7048
dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD
dmi.chassis.type: 3
dmi.modalias: dmi:bvnPhoenixT
dmi.product.name: MS-7048
dmi.sys.vendor: MEDIONPC
summary: |
- Ubuntu 10.04 freezes on heavy Wifi network load using + Ubuntu 10.04 freezes on heavy Wifi network load |
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
When using Qsopcast watching P2P television my notebook freezes after some minutes.
I used the internal WIFI card as well as an external USB WLAN card. The behaviour is for both cards reproduceable.
At low network activity everything is fine. But when using Qsopcast, the notebook freezes after 10-20 minutes.
When instead of WLAN using a network cable and deactivate the WLAN function, the notebook does not freeze and everything works fine.
When notebook freeze, the LCD gets black and the caps lock panel blinks. According to description I found in some forum this refers to a kernel panick.
I use an IBM Thinkpad T43. Ubuntu 10.04. System is updated.