[Debian-eeepc-devel] Thermal shutdowns in 2.6.26

Robert Epprecht epprecht at solnet.ch
Mon Sep 15 13:03:40 UTC 2008

I have been hunting the thermal shutdown problem during a couple of long
days (and nights...). It was a very difficult bug to track down, as it
appears and disappears on my system without any logic.

This is what I have found so far:

Here's the commit that broke it:

Undoing the patch heals the issue, but is probably not the right way to do it.

This patch corrects the issue:

It works well on vanilla, the base for our lenny kernel. This is my 
favorit solution to backport to our Lenny kernel.

The issue has disappeared in the 2.6.27 pre-patches. I will report later
on this one, as I am not through yet. There's more involved there, I think.

BTW: The file in question (drivers/acpi/ec.c) plays a very important role
regarding our second 2.6.26 bug, the EC GPE storm.

To read more about the bugs start with

Robert Epprecht

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