asterisk users - Dec 2009 - Context Switches and Load Average spike - Asterisk Version 1.4.22

I am running Asterisk V 1.4.22

Twice during the last two days the Context Switches on our box has gone from
about 7K to 80K in 2.5 hours.  The load average would spike to 17, drop to
0.35 then spike again.

When connecting to the console 'core show channels' will list the
channels
but not total calls.  'restart now' had no effect, the only way to stop
Asterisk is to kill the process.  Once Asterisk is killed, everything
returned to normal, for about 20 hours, then it started again.

The server is a dual - quad core machine.  Linux has been up over 380 days.

Has anyone experienced this before?

-- 
-Thermal
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