Date: Wed, 7 Jul 2004 12:06:34 -0400 (EDT) From: Robert Watson <rwatson@freebsd.org> To: Gleb Smirnoff <glebius@cell.sick.ru> Cc: John Baldwin <jhb@freebsd.org> Subject: Re: cvs commit: src/sys/kern sched_ule.c Message-ID: <Pine.NEB.3.96L.1040707120618.37929B-100000@fledge.watson.org> In-Reply-To: <20040707155348.GC75364@cell.sick.ru>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, 7 Jul 2004, Gleb Smirnoff wrote: > 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. An SMP kernel on a UP system, or a UP kernel on a UP system? Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Principal Research Scientist, McAfee Research
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.NEB.3.96L.1040707120618.37929B-100000>