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Re: [bug #17346] GNU mach can't handle 4GB memory

From: Constantine Kousoulos
Subject: Re: [bug #17346] GNU mach can't handle 4GB memory
Date: Mon, 20 Nov 2006 17:01:14 +0200
User-agent: Icedove (X11/20061013)

Samuel Thibault wrote:
Constantine Kousoulos, le Mon 20 Nov 2006 16:27:07 +0200, a écrit :
Oops wrong copy-paste. Correct my previous email with this:

... Mach's virtual address space is 4 GB big according to this entry in gnumach/i386/i386/vm_param.h: #define LINEAR_MAX_KERNEL_ADDRESS ((vm_offset_t) 0xffffffff) ...

Nope, that's just the upper limit. And since the lower limit is #define LINEAR_MIN_KERNEL_ADDRESS ((vm_offset_t) 0xc0000000)
that makes 1GB.

Doesn't Mach use at all virtual addresses from 0x00000000 to 0xc0000000?

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