lkml.org 
[lkml]   [2007]   [Feb]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch 00/11] ANNOUNCE: "Syslets", generic asynchronous system call support

* Benjamin LaHaise <bcrl@kvack.org> 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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-02-13 18:03    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site