Date: Wed, 7 Jul 2004 11:36:31 -0400 From: John Baldwin <jhb@FreeBSD.org> To: Robert Watson <rwatson@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern sched_ule.c Message-ID: <200407071136.31815.jhb@FreeBSD.org> In-Reply-To: <200407060557.i665vUrW007557@repoman.freebsd.org> References: <200407060557.i665vUrW007557@repoman.freebsd.org>
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On Tuesday 06 July 2004 01:57 am, Robert Watson wrote: > rwatson 2004-07-06 05:57:30 UTC > > FreeBSD src repository > > Modified files: > sys/kern sched_ule.c > Log: > Temporarily disable preemption in SCHED_ULE due to reported panics and > hangs due to recent preemption changes. This change appears to remove > the panic that I was running into, but at the cost of increasing > ithread scheduling latency, and as such is a temporary band-aid until > jhb has a chance to resolve the ule<->preemption interaction that is > the source of the problem. If it doesn't fix the problem for others-- > sorry! It it just broken on SMP? I actually did the commit from a UP preemption kernel using SCHED_ULE from within X11 with KDE, etc. running. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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