Re: AMD X2 unsynced TSC fix?

Lee Revell
2006-10-28T18:22:09Z

On Fri, 2006-10-27 at 20:59 -0700, Andi Kleen wrote:
> > Fortunately, we usually have an HPET, these days. You can
> definitely
> > resync and get near-linear values of RDTSC.
>
> No we don't -- most BIOS still don't give us the HPET table
> even when it is there in hardware. In the future this will change sure
> but people will still run a lot of older motherboards.

I have exactly such a system (see thread "x86-64 with nvidia MCP51
chipset: kernel does not find HPET"). Is there anything at all I can do
to make the kernel see the HPET? Can I try to guess the address? BIOS
upgrade?

Lee