Date: Wed, 7 Jul 2004 19:53:48 +0400 From: Gleb Smirnoff <glebius@cell.sick.ru> To: John Baldwin <jhb@freebsd.org> Cc: cvs-all@freebsd.org Subject: Re: cvs commit: src/sys/kern sched_ule.c Message-ID: <20040707155348.GC75364@cell.sick.ru> In-Reply-To: <200407071136.31815.jhb@FreeBSD.org> References: <200407060557.i665vUrW007557@repoman.freebsd.org> <200407071136.31815.jhb@FreeBSD.org>
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John, On Wed, Jul 07, 2004 at 11:36:31AM -0400, John Baldwin wrote: J> > Modified files: J> > sys/kern sched_ule.c J> > Log: J> > Temporarily disable preemption in SCHED_ULE due to reported panics and J> > hangs due to recent preemption changes. This change appears to remove J> > the panic that I was running into, but at the cost of increasing J> > ithread scheduling latency, and as such is a temporary band-aid until J> > jhb has a chance to resolve the ule<->preemption interaction that is J> > the source of the problem. If it doesn't fix the problem for others-- J> > sorry! J> J> It it just broken on SMP? I actually did the commit from a UP preemption J> kernel using SCHED_ULE from within X11 with KDE, etc. running. it is broken on UP, too. See thread in -current. -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE
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