RE: clock drift with two Promise Ultra133 TX2 (PDC 20269) cards

From: Drew Winstel
Date: Tue May 03 2005 - 13:33:47 EST


> Thanks, now it loads correctly. Unfortunately the clock drift still occurs
> with pata_pdc2027x. I'm guessing here, but can clock drift have anything
> to do with IRQs? Also, is it normal to see errors in /proc/interrupt?

I've never noticed any errors before, but that could just be a result of me
never actually bothering to look.

> # cat /proc/interrupts

<snip>
> ERR: 23672

Hmmm....

I'm grasping at straws here.

Let's do some poking into your kernel config. What do you have set under
"Processor type and features"?

I experienced a similar situation once in the past, but that was a result of
drives losing DMA and doing simultaneous activity on eight drives and four
controllers. Moving to the pata_pdc2027x driver seems to have cleared it
right up.

Sorry I can't provide a quick cure-all!

Drew
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