Do you have a PTF/APAR number?  I've been running z/VM 5.2 with SLU 0501 

since March and havn't encountered this problem.  (Our last IPL was June 

3rd.)

Brian Nielsen

On Wed, 13 Sep 2006 09:48:26 -0700, Schuh, Richard <[EMAIL PROTECTED]> wrot
e:

>Are you sure that you are not on 5.2? :-) 
>
>We recently had something like this happen on a 5.2 system; however, it 

apparently was a result of the conversion to 64-bit CP and not applicable
 
to 5.1. It was a 2GB line issue. Because of a memory leak below the 2G 

line, CP was finding it difficult to locate two adjacent pages and was 

looping. When it got to the point that all 5 cpus were in the same 
condition, the system was dead. We lost, in order, VTAM, VMSECURE, 
OPERATOR, and TCPIP as the system slowly ground to a halt. A RESTART dump
 
enabled IBM to identify the problem. Our failure occurred early in our 

fourth day of running 5.2. It has now been almost 1 month since our last 

IPL, so the leak appears to have been plugged. 

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