7.1-release hangs

[Guy Helmer]

Still chasing a hang that has dogged me for quite some time.  This time 
I noticed the console logging output showed that processing stopped 
right on the five-minute interval when cron would have kicked off 
bsdsar, which in turn ran vmstat.  The system is a Supermicro P4PDE 
motherboard with dual Xeons and hyperthreading enabled.

Kernel debugging results are available at 
http://www.palisadesys.com/~ghelmer/crash-20090220.txt
If anyone cares to take a look, I would be grateful.

Guy Helmer