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

On Tuesday, May 03, 2005 at 11:53, Drew Winstel wrote:

I think I know what the problem is.

In include/linux/libata.h, make sure the preprocessor declarations are as 
follows.  I think the defaults have ATA_ENABLE_PATA undefined.

#define ATA_ENABLE_ATAPI        /* undefine to disable ATAPI support */
#define ATA_ENABLE_PATA          /* define to enable PATA support in some
                                 * low-level drivers */

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?

# cat /proc/interrupts 
           CPU0       
  0:     954189          XT-PIC  timer
  2:          0          XT-PIC  cascade
  8:         16          XT-PIC  rtc
  9:          0          XT-PIC  acpi
 10:       1630          XT-PIC  eth1
 11:     103147          XT-PIC  libata
 12:       9990          XT-PIC  eth0
 14:       5993          XT-PIC  ide0
 15:     145866          XT-PIC  libata
NMI:          0 
LOC:          0 
ERR:      23672
MIS:          0

Regards,

Oskar Liljeblad (oskar@osk.mine.nu)