cvs commit: src/sys/kern sched_ule.c

Gleb Smirnoff glebius at cell.sick.ru
Wed Jul 7 09:10:52 PDT 2004


On Wed, Jul 07, 2004 at 12:06:34PM -0400, Robert Watson wrote:
R> > J> >   Modified files:
R> > J> >     sys/kern             sched_ule.c
R> > J> >   Log:
R> > J> >   Temporarily disable preemption in SCHED_ULE due to reported panics and
R> > J> >   hangs due to recent preemption changes.  This change appears to remove
R> > J> >   the panic that I was running into, but at the cost of increasing
R> > J> >   ithread scheduling latency, and as such is a temporary band-aid until
R> > J> >   jhb has a chance to resolve the ule<->preemption interaction that is
R> > J> >   the source of the problem.  If it doesn't fix the problem for others--
R> > J> >   sorry!
R> > J> 
R> > J> It it just broken on SMP?  I actually did the commit from a UP preemption 
R> > J> kernel using SCHED_ULE from within X11 with KDE, etc. running.
R> > 
R> > it is broken on UP, too. See thread in -current. 
R> 
R> An SMP kernel on a UP system, or a UP kernel on a UP system?

UP kernel on a UP system

-- 
Totus tuus, Glebius.
GLEBIUS-RIPN GLEB-RIPE


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