On Fri, Aug 08, 2008 at 12:01:15PM -0700, H. Peter Anvin wrote:
quoted text
>
> It's technically overkill, if (and only if!) these instructions don't 
> actually touch the SSE state (most likely they're using the SSE 
> pipeline, and need this stuff to deal with power management issues.)

Yes the PadLock uses the SSE pipeline, but doesn't touch any
of the state.

quoted text
> However, overkill is a good way to make sure something is dead. 
> Applying the patch will make sure we fix the regression, and we can 
> worry about optimizing this further post-2.6.27.

Do we really need the FPU changes right now? I'd prefer for that
to be backed out until a proper solution is found.  Disabling
preemption around crypto is really bad for scheduling latency.

Thanks,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html