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On Fri, 2009-05-08 at 11:45 +0100, Gordon Henderson wrote:
> I loaded up something called acerfand on hers - it's a shell script. It
> turns the fan off and only turns it on when the thing is really cooking...
> So far so good...
>
> So what's this module doing then?
It's a port of the acerfand script to kernel land. Apparently there was
a problem with doing it in userland which meant it wasn't reliable.
I too was running the acerfand script for a while. I never had any
issues with it but maybe we've both been lucky.
The AspireOne page on the Ubuntu community wiki says
The user space script "acerfand" originaly used to fix the noisy
fan problem can cause race conditions and lockups as it accesses
registers asynchronous to the kernel.
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