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Porting to from Solaris 64bit to Linux 32B - 36B.

Hi,

	We are currently at porting to Linux 2.4 kernel and I am having troubles finding information on VM.  Since the 2.4 Kernel support large amount of swap < 1TB and Physical Ram < 64GB.  Is there a way to get memory functions like mmap to use a 64 bit pointer instead of the 32bit pointer.  Since a memory mapped file the file is used as swap I should be able to have it map a file larger than 4GB and have the OS do the page management.  Is there a way of doing this in i386 or i686 version of kernel or do I have run Linux on IA-64 or other 64-bit chips to do this?

Thanks for your time,

Jon
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