Re: [PATCH 2/2] x86_64,signal: Remove 'fs' and 'gs' from sigcontext

From: Andi Kleen
Date: Sat Jul 12 2014 - 14:52:13 EST

On Sat, Jul 12, 2014 at 11:40:03AM -0700, H. Peter Anvin wrote:
> Because you are doing something weird (like Pin, for example) and take an asynchronous fault?

But even for pin that would need executing 16 bit code, or really weird
32bit code. AFAIK for 32bit the only good use case was NX emulation
(and old virtualization) which are both completely obsolete.

I don't think it's worth messing with the signal handlers for 16bit
code. If there's any problem with saving/restoring state that emulator
can always handle it by itself.

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