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Date: Wed, 4 Aug 2004 18:05:29 +0200
From: Rudo Thomas <rudo@matfyz.cz>
To: Ingo Molnar <mingo@redhat.com>
Cc: Shane Shrybman <shrybman@aei.ca>,
       linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [patch] voluntary-preempt-2.6.8-rc2-O2
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> > I just wanted to report that O3 (+preempt-timing-O2) locks up hard at
> > random occasions, even with voluntary-preempt=2 preempt=1 set at boot
> > time. I never changed any of /proc/irq/*/threaded.
> 
> could you check whether it works with all APIC options turned off in the
> .config?

It appears to. With APIC on, it crashed after 10 and 25 minutes. Without APIC,
it survived two hours.

Hope that helps.

Rudo.