cvs commit: src/sys/kern sched_ule.c

[Niki Denev]

Gleb Smirnoff writes:

> 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

Well, i'm running UP kernel (and without APIC) on UP machine (Laptop IBM TP 
X31), cvsupped on 5-th, 2 days ago. With SCHED_ULE, and i have not 
experienced any signs of instability... not a single panic :)

--
niki




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