Re: [PATCH] Start of compat32.h (again)

[Andi Kleen]

On Wed, Nov 27, 2002 at 09:46:13AM +0100, David Mosberger wrote:
> >>>>> On Wed, 27 Nov 2002 09:29:18 +0100, Andi Kleen <[e-mail]> said:
> 
>   Andi> But the 32bit user space surely doesn't care about any garbage
>   Andi> in the upper 32bits, no ?
> 
> The user-space won't, but the kernel exit path might.  Remember that

True. The signal return path checking for the 5xx errnos expects
them to be 64bit extended. I now even vaguely remember an obscure bug I once 
saw on x86-64 with an 32bit application actually seeing ERESTARTSYS that might
just have been caused by such an issue.

Thanks for pointing that out.
-Andi