Re: IO-APIC problem with 2.6.14-rt9

[Ingo Molnar]

* Ingo Molnar <mingo@xxxxxxx> wrote:

> > Grumble. :( I was hoping to submit my tod code to Andrew tomorrow, but 
> > this might block that.
> 
> hm, ARCH_HAS_READ_CURRENT_TIMER is upstream already. I have not 
> measured the udelay thing upstream, but i thought it would have the 
> same issue.  Does the GTOD code impact this code?

ah, i see - you changed __delay to always be loop-based. That is quite 
incorrect.

but i think there is a generic way to solve this: just busy-poll 
->read_cycles(). I.e. move __delay into the generic code too. This means 
even more architecture-specific code would be consolidated, which is 
always good.

	Ingo
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