2G+ user space memory allocation problem

["Prokopenko, Konstantyn" <kproko@xxxxxxxxxxxx>]

Hello,

 

I've got 4GB machine running Fedora Core1 and custom kernel 2.6.4.

My user application performs huge data manipulations and requires 2.7GB to be allocated.

I can allocate only 2 GB of user space memory.

The question is - what about 3/1 GB user/kernel scheme? Why it is not possible to allocate more than 2 GB in user space?

 

Thank you,

Konstantyn

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