hard freezes on f14

[Hiisi]

la, 2011-01-08 kello 17:42 -0500, Genes MailLists kirjoitti:
> Since moving from f13 to f14 (fresh install) on my laptop (lenovo T61p)
> using nouveau driver - I have found that leaving the laptop plugged in
> and with mail and browser running via wifi -
> 
>  Once in a while (3 times so far) it will just freeze - when I return to
> it the only response I can get is to power cycle it hard.
> 
>   The lights are on - the wifi light is blinking - the disk light is off.
> 
>    The /var/log/messages stops recording from the freeze point till i
> hard reboot.
> 
>     smart says disk seems ok - machine has never crashed under 12 or 13.
> 
>     Very odd ...
> 
> gene/

I saw similar behavior on my girlfriend' acer 5102 laptop. It was
running ubuntu. Both smart tests were OK and no strange messages neither
in /var/log/messages nor in Xorg.*.log. Before I could investigate that
case any deeper a southbridge on the laptop motherboard has died... It
seems that the reason was its overheating.
-- 
We apologize for the inconvenience, but we'd still like yout to test out
this kernel. 
	-- Linus Torvalds, announcing another kernel patch