More ULE bugs fixed.

[Eirik Oeverby]

Jeff Roberson wrote:
> I fixed two bugs that were exposed due to more of the kernel running
> outside of Giant.  ULE had some issues with priority propagation that
> stopped it from working very well.
> 
> Things should be much improved.  Feedback, as always, is welcome.  I'd
> like to look into making this the default scheduler for 5.2 if things
> start looking up.  I hope that scares you all into using it more. :-)

Hi..
Just tested, so far it seems good. System CPU load is floored (near 0), 
system is very responsive, no mouse sluggishness or random 
mouse/keyboard input.
Doing a make -j 20 buildworld now (on my 1ghz p3 thinkpad ;), and 
running some SQLServer stuff in VMWare. We'll see how it fares.

Thanks,
/Eirik