Re: X86_64: Many Lost ticks

[Zwane Mwaikambo]

On Fri, 19 Nov 2004, Chuck Ebbert wrote:

> On Thu, 18 Nov 2004 at 19:50:32 +0100, Andi Kleen wrote:
> 
> > On Thu, Nov 18, 2004 at 05:10:17PM +0000, Alan Cox wrote:
> >
> > > Ok ACPI timer override probably goes back into the broken bucket and out
> > > of -ac in -ac11 then.
> >
> > The timer override should be fine (I have confirmation from Nvidia
> > about this). The only thing that you can take out if you're conservative
> > is the change to not disable the IOAPIC by default when Nvidia 
> > is detected (in check_ioapic()) 
> 
> 
> I did that long ago; the below patch is dated Oct 28 on my fileserver.
> 
> Alan could save himself some work if we shared patches... I already
> backported even more of the networking stuff to 2.6.9 than he did.

The thing is, without the IOAPIC enable it's essentially a no operation 
since i8259 mode wouldn't use the pin information.

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