Re: fast clock wreaks havoc on amd64 dual core - hp1250n

[Basile STARYNKEVITCH <basile@starynkevitch.net>]

Le Fri, Oct 21, 2005 at 09:52:05PM -0400, Nathan O. Siemers écrivait/wrote:
> 
> Hello all,
> 
>    I've spent the last 5 days trying to fix an issue with a brand new 
> hp a1250n dual core athlon64 machine.  ATI motherboard with embedded 
> radeon xpress 200 graphics.  [...]
> 
>    The system in many ways okay, but there is a serious problem with 
> interrupts and clock speed which wreaks general havoc on the machine.  
> The clock is running about 2x speed - I think perhaps two clock ticks 
> (from each core?) are happening for each one that should. [....]

The double-clock rate is a problem I also encountered on my ATIX200
chipset laptop, MSI S270. See
http://starynkevitch.net/Basile/msi_s270_linux.html

A workaround is to boot with the noapic flag.

Regards.

-- 
Basile STARYNKEVITCH         http://starynkevitch.net/Basile/ 
email: basile(at)starynkevitch(dot)net 
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