[Ivan Stepnikov]
> I tried to call getrlimit(). It shows only 2G available memory and
> there is no way to increase it.
Right. Architectural limit. There needs to be some room in the
address space for kernel stuff, I/O, etc -- in Linux at least, having
to play with your page tables every single time you enter a system call
or IRQ handler would be considered a Bad Thing.
> Could you say me are there any solutions?
a) If you have that much memory, maybe you need a 64-bit CPU.
b) fork() and do IPC. It's the Unix Way.
Peter
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