At 03:20 PM 2/4/01 -0500, Lennart Augustsson wrote:
>Note that when my machine
>freezes there is NO disk activity.

Wild theory time: The page scanner is scanning a zillion pages.

When this happens have you tried popping into ddb and snooping around to 
see what process is active and what the queues look like? I'm guessing 
you've got a fair bit of memory and you're stuck in the page scanner (which 
appears to lock everything out to prevent the pages being modified while it 
is scanning them.) Try taking your system down to 16MB and see if that 
doesn't actually get you a bit better performance.