Re: kernel (64bit) 4GB memory support

From: Lennart Sorensen
Date: Wed May 11 2005 - 09:32:25 EST


On Wed, May 11, 2005 at 02:48:42AM +0700, Rudolf Usselmann wrote:
> I do see the full 4G. With Fedora Core 2 32bit, I can use all
> 4G as well. All my problems started when I "upgraded" to x86_64 ...

In 32bit it probably uses the PSE36 extensions or something, which isn't
the same thing as flat 64bit memory access. It could just be a matter
of needing a memory hole somewhere for PCI space or something. I only
have 1G in my 64bit machine so I haven't got near these problems.

Len Sorensen
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/