RE: System hang problem.

[Manish Neema]

> What you can often do, if you have one application using much memory, 
> is limiting *this application's* memory usage with ulimit. If the 
> application correctly handles malloc()==NULL, then at least your 
> system will behave stably.

The problem is its different application, different user each time (a
typical large R&D environment). /etc/security/limits.conf allows to set
max resident set size. Is there a way to limit based on the total
virtual size? 

-Manish
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