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Christian Limpach wrote:
>> - as a target for mi_switch the lwp has to be in memory (l_flag & L_INMEM)

> I noticed these two since I sent the patch. 
> Don't we also need the L_INMEM  tests on UP?

Yes

> The cpu-queue wins over the 
> global queue if both have lwp's at the same priority.

This can theoretically cause starvation of LWPs on the global queue.

> Processes with SA enabled have a very strong affinity

You seem to have reduced the SMP case to a UP case with
respect to one SA process.
This means that your patch inherits the UP problems of the current
SA code. (Generally triggered by low memory conditions)

	Stephan