Re: 2.6.32-rc3: low mem - only 378MB on x86_32 with 64GB. Why?

[Linus Torvalds]

On Sun, 11 Oct 2009, Benjamin Herrenschmidt wrote:
> > 
> > It's supposed to be easier these days, but I guess distros don't compile 
> > in support for 64-bit mode by default. Just using another machine may be 
> > the simplest approach, if you have any 64-bit distro around.
> 
> My experience is that most distros have a compiler capable of generating
> a 64-bits kernel

At least not Fedora x86. Doing "gcc -m64" results in

	sorry, unimplemented: 64-bit mode not compiled in

on my laptop.

			Linus
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