Date: Tue, 6 Jul 2004 14:12:47 +0200 From: "Michael L. Hostbaek" <mich@FreeBSD.org> To: Robert Watson <rwatson@freebsd.org> Cc: current@freebsd.org Subject: Re: Native preemption is the culprit [was Re: today's CURRENT lockups] Message-ID: <20040706121247.GC38662@mich2.itxmarket.com> In-Reply-To: <Pine.NEB.3.96L.1040706001249.2853I-100000@fledge.watson.org> References: <20040705184940.GA2651@tybalt.greiner.local> <Pine.NEB.3.96L.1040706001249.2853I-100000@fledge.watson.org>
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Robert Watson (rwatson) writes: > > (This time to more people) > > The patch below appears to (brute force) eliminate the crash/hang I'm > experiencing with SCHED_ULE in the post-preemption universe. However, I > was experiencing it only in the SMP case, not UP, so it could be I'm just > not triggering it timing-wise. This would be a temporary fix until jhb is > online again post-USENIX to take a look, assuming this works around the > problem for people other than me. I've been using this patch on my UP machine for 5-6 hours now, without any hangs/crashes. Thanks, -- Best Regards, Michael L. Hostbaek mich@FreeBSD.org - http://www.FreeBSD.org */ PGP-key available upon request /*
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