Re: [patch 00/11] ANNOUNCE: "Syslets", generic asynchronous system call support

[Ingo Molnar]

* Benjamin LaHaise <bcrl@xxxxxxxxx> wrote:

> > > Open issues:
> > 
> > Let me add some more
> 
> Also: FPU state (especially important with the FPU and SSE memory copy 
> variants), segment register bases on x86-64, interaction with 
> set_fs()...

agreed - i'll fix this. But i can see no big conceptual issue here - 
these resources are all attached to the user context, and that doesnt 
change upon an 'async context-switch'. So it's "only" a matter of 
properly separating the user execution context from the kernel execution 
context. The hardest bit was getting the ptregs details right - the 
FPU/SSE state is pretty much async already (in the hardware too) and 
isnt even touched by any of these codepaths.

	Ingo
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