Second ATA Disk Controller Problem

Hi,

I am running VxWorks 6.1 on a Pentium target.

The first ATA controller is working 100% and everything is ok if the
second controller is disabled.

When the second ATA controller is enabled, a variety of things may
happen:

a) quick boot (30 seconds) and proper operation

b) hang at reboot

c) take 5 minutes to boot and work ok

d) take 5 minutes to boot and not access the disk

Things are ok from DOS. A DOS util shows the two ATA controllers at
irq 14 and 15. My config.h was modified as follows:

#define ATA1_CTRL_TYPE (IDE_LOCAL) /* ATA 1 logical type */
#define ATA1_NUM_DRIVES (1) /* ATA 1 number drives present
*/
#define ATA1_INT_LVL (0x0F) /* ATA 1 interrupt level */

The intermittent behavior makes me question the irq. Is there a 'show'
utility to show the interrupts in use?

Any ideas about how to resolve this problem?

Thanks,

Mark