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Is leopard a real 64bit OS?


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I found this to share with you guys.

 

http://events.ccc.de/congress/2007/Fahrpla..._osx_kernel.pdf

 

From this file :

 

The OS X kernel is not 64 bit. It supports 64

bit user mode applications on a 64 bit PowerPC

or Intel CPU, but the kernel itself runs

in 32 bit mode and is bound to the 4 GB address

space limit.

 

So to answer the original post of Envying ....and he has done this himself already ....Yes,

Kernel is the core of an OS, Mach_kernel is a universal binary file using ppc & i386(not x86 64) instructions... So can I say Leopard is not a real 64bit OS!

 

 

for now...... :hysterical:

 

That probably explains why my vanilla install (using 10.6 retail) fails with more than 4GB

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