Re: x86-64 on i386 (was Re: Promoting i386 version over x86_64?)

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On Mon, Dec 14, 2009 at 05:18:47PM +0000, Paul Jakma wrote:

> For those who can't sort by thread in their MUA: To ask that  
> 32-userspace-on-64 be supported (it pretty much all works, except for  
> yum updating certain things, like the kernel), as there are definite  
> benefits to a 32-by-default userspace.

There's little testing effort done on this. People still occasionally 
trip over bugs in the ioctl conversion code in the kernel, and there's a 
couple of other cases where exported ABI doesn't get converted 
correctly. Now, while it's undeniable that these are bugs that should be 
fixed, it's also pretty difficult to justify adding a third x86 variant 
to our list of supported configurations, especially when it's known to 
be more problematic than the other two that already satisfy almost 
everybody's needs.

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx

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