On Sat, 2007-05-12 at 12:39 -0700, M. Edward (Ed) Borasky wrote:
> I'm still testing some things, but there are some bugs in the NVidia 
> "sata_nv" part of the AMD64 Linux kernel that have showed up in the 
> Debian bug archives. Apparently it worked in older kernels and got 
> broken "recently". I haven't found any differences with or without 
> either pre-emption, SMP vs. UP, ACPI or APIC. The only thing I've found 
> so far is that 32-bit kernels seem to work and 64-bit ones don't. At the 
> moment I've only got a gigabyte of RAM in the machine so I'm not losing 
> a heck of a lot by running a 32-bit kernel. :)

...and all of the extra general-purpose registers and other 64-bit only
extensions.  AMD64 isn't all about memory access, unlike many other
64-bit platforms.

-- 
Chris Gianelloni
Release Engineering Strategic Lead
Alpha/AMD64/x86 Architecture Teams
Games Developer/Council Member/Foundation Trustee
Gentoo Foundation