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[Question #45023]: dd and klogd consume lots of cpu when network is disabled

To: ubuntu-eee-coders@xxxxxxxxxxxxxxxxxxx
From: Simon Holt <question45023@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 12 Sep 2008 22:07:51 -0000
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New question #45023 on Ubuntu Eee:
https://answers.launchpad.net/ubuntu-eee/+question/45023

I've been tweaking my Eee 901 to try and reduce power consumption, and since I'm always on a wireless network, I thought it may be a good idea to disable the wired network in the BIOS - it probably won't save much power, but every little helps!

Anyway, immediately after doing this I noticed the system was very slow - turns out that "dd" is consuming huge amounts of CPU - when I kill this, "klogd" goes beserk too.  Killing that seems to calm things down.

Does anybody have an idea what it's doing?  Any safe way of doing this?  Or should I give up, on the basis that the network adaptor probably consumes next-to-nothing when it's not connected anyway?

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