Excessive amount of time in interrupt stack mode

[allison]

On 04/30/2019 02:02 PM, John Klos via cctalk wrote:
>> The system is mostly idle, RAM is mostly free (there's 32mb),
>> there is almost no paging, but the CPU is spending upwards of 70% of the
>> time in the interrupt stack mode.
>
> If I had to guess, I'd say the most likely culprit is ethernet. Try
> disconnecting ethernet, perhaps the AUI, too, and see if it's any
> different.
>
> John
Last time I'd seen that another system on the network was jabbering... 
it had a bad DEQNA.

Allison