I have a dual boot (XP/FC) IBM X60. The user has installed customized
user-mode kernels and the laptop palm rest becomes extremely hot after
running for several hours. The laptop does not over heat or shut down, just
becomes very hot to the touch.
Running the laptop in Windows XP, for the same time or longer w/various
apps, and IBM diagnostic utilities yields no problems or over heating.
I'm thinking that it is safe to assume that the problem lies somewhere
within the linux kernels. Is there a good way to monitor/track the kernel's
effect on the hardware so that I may be able to tell for certain if it is
the linux kernel?
Matthew T. Engel
Allegheny College, Department of Computer Science
Meadville, PA 16335
From: Jeff Dike <jdike@ad...> - 2007-08-24 17:12:23
On Thu, Aug 23, 2007 at 08:33:43AM -0400, Matthew T. Engel wrote:
> I'm thinking that it is safe to assume that the problem lies somewhere
> within the linux kernels. Is there a good way to monitor/track the kernel's
> effect on the hardware so that I may be able to tell for certain if it is
> the linux kernel?
Does the thing cool down if it's not running UMLs?
If the thing stays hot with a bunch of idle UMLs on it, I would guess
that the UML timer is keeping the host from turning the power down.
The solution to this would be to support tickless operation, which I
am looking at.
Work email - jdike at linux dot intel dot com