I can confirm that disabling networking(not just the wireless radio)
stops the freezing.
I have always been using wireless, but have just noticed that the
networking lights next to my eth0 port are both constantly on and ubuntu
doesn't detect anything when I plug in plugging into a wired connection
and doesn't connect to the internet. I am
$ sudo lshw -C network
*-network
description: Ethernet interface
product: 82566MM Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth0
version: 03
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt
10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e
driverversion=1.3.10-k2 firmware=0.3-0 latency=0 link=no multicast=yes
port=twisted pair
resources: irq:45 memory:fe000000-fe01ffff memory:fe025000-fe025fff
ioport:1840(size=32)
*-network
description: Wireless interface
product: PRO/Wireless 4965 AG or AGN [Kedron] Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 61
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical
wireless
configuration: broadcast=yes driver=iwl4965
driverversion=3.0.0-13-generic firmware=228.61.2.24 ip=192.168.1.103 latency=0
link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:48 memory:df3fe000-df3fffff
I am using a Thinkpad T61, Ubuntu 11.10 x86_64, 3.0.0-13-generic
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https://bugs.launchpad.net/bugs/887793
Title:
Kworker constantly taking about 100% CPU
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