Re: [lm-sensors] Could the k8temp driver be interfering with ACPI?

Pavel Machek
2007-03-02T13:58:20Z

On Fri 2007-03-02 11:47:47, Matthew Garrett wrote:
> On Fri, Mar 02, 2007 at 12:40:23PM +0100, Pavel Machek wrote:
>
> > Whitelist seems like a way to go :(.
>
> The DSDT code clearly can't touch the hardware itself - hardware access
> is carried out by the kernel. If we can identify cases where ACPI reads
> and writes would touch resources claimed by other drivers, that would be
> a good starting point for working out what's going on.
>
> Of course, this ignores the case where the DSDT just traps into SMM
> code. That one is clearly unsolvable.

We can't solve SMM stuff. (Whitelist needed :-).

Actually for the acpi stuff... we might wrap ACPI interpretter with a
semaphore that needs to be taken before starting any AML code. Then
just make sure sensors take same semaphore?
Pavel
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