Re: AMD64 X2 lost ticks on PM timer

[Andi Kleen]

On Wednesday 01 March 2006 16:43, Bill Rugolsky Jr. wrote:

> > I would suspect some driver.
> > Do you use any special addin cards? What modules are you using?
> 
> My guess is the sata_nv driver, as it happens during heavy local file read.
> The machines all have 2-4 SATA WD Raptors connected to the mobo.

Are you accessing all these disks in parallel with that cpio? If 
yes could you try it with only a single disk? 

My box only has a single SATA disk. Maybe there is some 
corner case in that SATA driver that leaks interrupt state
and it's only turned on later by idle or softirq then.

-Andi
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