Re: Re: NUMCPU >1 = IEE331A EXCESSIVE DISABLED SPIN LOOP DETECTED

Gerhard Postpischil <[email protected]> Sun, 23 May 2010 03:38:05 -0400

Newsgroups	gmane.comp.emulators.turnkey-mvs
Message-ID	<[email protected]>

On 5/20/2010 12:25 PM, Mike Stramba wrote:
> ...Except for  the  the "spin" messages, it was spewing, which I had no
> idea what they meant ;)

Several years ago I tried NUMCPU 2 (for a 4381), and got weird 
hangs and wait states. I tried it earlier today, and it works 
like a charm - no spin loops. Perhaps the "secret" is to attach 
devices only to CPU 0, as was the case for real 43x1 machines 
(support for multiple I/O processors came in with MVS/XA).

Gerhard Postpischil
Bradford, VT