On 13 Mar 2000, david parsons wrote:
>David Whysong <dwhysong@physics.ucsb.edu> wrote:
>>
>>Ok, so my big gravitational simulation gets NULL from malloc and decides
>>to save it's work and exit. Uh-oh, time to demand-load a page of
>>executable code that had been discarded,
>
> Discarded? But that would be overcommit -- if your system is running
> without overcommit, there has to be a space for that page someplace
> in core, and it shouldn't be blown away, no matter how frantically
> the kernel may want to use that page for something else.
...yes, and you conveniently cut my next paragraph that shows the problems
in the case where you do not overcommit application memory...
Dave
David Whysong dwhysong@physics.ucsb.edu
Astrophysics graduate student University of California, Santa Barbara
My public PGP keys are on my web page - http://www.physics.ucsb.edu/~dwhysong
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