Out of Memory problem in Ultrix 2.2

[Harish Hiriyannaiah]

I am experiencing a wierd problem on our Microvax running Ultrix 2.2.
One of the processes is hogging (70 %) a lot of memory and the system is 
definitely thrashing. Now, why should other processes get a "ran out of
memory" error ? What is the virtual limit of memory on processes in
Ultrix ? Why should it run out of memory if the os is a virtual memory  
machine ? 

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