x86-64 on i386 (was Re: Promoting i386 version over x86_64?)
Paul Jakma
paul at dishone.st
Sun Dec 13 18:33:01 UTC 2009
On Wed, 18 Nov 2009, Jeff Garzik wrote:
> Running a 64-bit kernel with a 32-bit userland is a common practice
> on non-x86 platforms, and non-Linux OS's.
FWIW, it works on Linux too. I ran F10 i386 on a x86_64 kernel for a
while. About the only thing that doesn't work right is yum wrt kernel
updates.
> For a lot of tasks, you simply do not need 64-bit pointers and a
> 64-bit process address space. Both executable code and in-memory
> data structures tend to be smaller on 32-bit.
Indeed.
It would be nice if i386-userspace/x64-kernel were officially
support..
regards,
--
Paul Jakma paul at jakma.org Key ID: 64A2FF6A
Fortune:
Blore's Razor:
Given a choice between two theories, take the one which is funnier.
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