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?
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