On Wed, 29 Mar 2006, Blaisorblade wrote:

On Wednesday 29 March 2006 00:09, David Lang wrote:
On Tue, 28 Mar 2006, Blaisorblade wrote:
http://www.user-mode-linux.org/~blaisorblade/patches/skas3-2.6/

sorry, the host is a dual Opteron 252 with 8G of ram running 2.6.16
(which I understood included the skas patch)

No, it doesn't if you don't patch it. Add the patch, but you can't run
them in full SKAS3; you can pass "mode=skas0" to force skas0 mode, but
you can then also pass "noprocmm" to force half SKAS3.

Ok, I've gone through and read the docs on blaisorblade's pages about
SKAS, and I'm still not understanding things.

the 2.6.16 kernel includes a SKAS option in the configs (it only shows if
you have TT mode enabled)

Because otherwise it's auto-enabled.
We're talking of guest support, in case it's not clear.

However:
*) for ages, SKAS meant SKAS3. And SKAS3 requires a patch on the host.
*) Now SKAS includes also SKAS0; SKAS0 was born some time ago, doesn't require
special host support, and is not as fast as SKAS3, but a lot faster than TT
mode.

these are the pieces I was missing, thanks.

I just downloaded the 2.6.16-bb1 patchset, does it include the SKAS3 patches or should I install the skas-2.6.16-v9-pre9 patchset as well?

David Lang


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