Re: mmap'ing a large file

From: H. Peter Anvin (hpa@zytor.com)
Date: Thu Aug 15 2002 - 14:34:32 EST

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Followup to: <1029342745.8255.6.camel@lemsip>
By author: Gianni Tedesco <gianni@ecsc.co.uk>
In newsgroup: linux.dev.kernel
>
> Intel is a 32bit architecture, that is to say the address space is 2^32
> bytes (4GB), of this address space the kernel takes the top 2GB and
> userspace the bottom 2GB.
>

NAK. 3 GB userspace, 1 GB kernel space is the default.

The 3 GB is subdivided into 1 GB for the program, and 2 GB for libraries
and other mmaps (grows up) and the stack (grows down).

-hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt	<amsp@zytor.com>
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