Date: Wed, 05 Sep 2007 02:43:04 +0200 From: Kris Kennaway <kris@FreeBSD.org> To: Duane Hill <d.hill@yournetplus.com> Cc: freebsd-questions@freebsd.org Subject: Re: fatal double fault (spinlock) Message-ID: <46DDFB98.1010404@FreeBSD.org> In-Reply-To: <20070904214705.S2251@duane.dbq.yournetplus.com> References: <20070904214705.S2251@duane.dbq.yournetplus.com>
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Duane Hill wrote: > > We have a Dell PowerEdge 6850 with four 3ghz Intel dual core Xeon > processors and 12 gig ram. It is running FreeBSD 5.5-RELEASE-p15 amd64. > SMP has been compiled into the kernel. However, > machdep.hyperthreading_allowed has been set to zero(0) in > /etc/sysctrl.conf. > > Once about every 1.5 to 2 weeks, the server throws the error: > > fatal double fault > cpuid=15 > spinlock sched lock held by 0xffffff032f3c1500 > 5 seconds > > This server is located in a colo many miles away. I had to have a person > at the colo facility read off the message that was on the screen. I hope > it is exact (or at least close). > > This server is one of our main spam filter servers. It use to have an > MTA installed on it that required FreeBSD 5.5. That software does not > run on the server anymore. > > I've been meaning to upgrade the server to 6.2 release, but have been > procrastinating. Would upgrading the server to 6.2 release correct this > issue? Chances are good: by running 5.5 you are missing out on several years of bug fixes. Kris
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