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Re: 64 bit addressing again

As I understand it, parts of the kernel use 64 bit addressing (and can manage more than 4GB of physical RAM), but user processes are limited to 4GB.

Cheers,

Steve.

On 11 Feb 2004, at 10:57, Andreas Lachner wrote:

On Tuesday, Sep 16, 2003, at 15:50 US/Eastern, Mike Vannorsdel wrote:

Did anyone see the "Optimizing for the PowerMac G5" article today. It
says:

"Today, Mac OS X provides full 64-bit support in the kernel, the
virtual memory subsystem, the file system, and some additional core
components of the OS."

This seems to imply 64-bit addressing is already there. However, from
discussions in here it seems it's not implemented.

My real question is, does anyone know the lowdown on this; does Mac OS
X currently allow 64-bit addressing and if so, where can one find the
documentation to implement it (allocation functions, compiler flags,
ect.)?

There was an answer: no 64-bit addressing support.

Did it change meanwhile?

How can I address 8 GB of ram at all?

Thanks.

CU
Andreas
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Steve Baxter
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References: 
 >64 bit addressing again (From: Andreas Lachner <email@hidden>)



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