x86_64 HLFS

[Jan Dvorak]

On Thursday 31 July 2008 17:12:31 Valter Douglas Jr. wrote:
> Aside 64 bits system has more bugs than 32, it could
> be a good candidate to not have throubles (except when you mix it with
> Xen, nasty thing). [talking about PaX]

Can you go more into details? I only found some information about 
potential problems on non-hardware-emulated systems. I don't plan on 
using Xen, but the main reason I'm going for x86_64 HLFS is KVM/QEMU with 
>4G memory and ability to run x86_64 guests.