anyone have any guesses on what could cause a bunch of fuser process to suck up all CPU?

update: looks like it's a bunch of php session files plugging up the works. (over 145,000 files in /var/lib/php/session/ now. cleaning that directory up to see if that clears the CPU up...)

update 2: I posted the fix on the MediaTemple user forums, in case anyone else hits this particular wall.