offtopic: its more about php than nginx:
there is any similar to apache_child_terminate for fastcgi php´s?
My last resort of exec('/usr/bin/kill '.getmypid()) plainly doesnt 
worked, the output is broken (nginx spit out a 'bad gateway') but the 
process is still there. stock fastcgi php support any of that?
-- 
*Sergio Devojno Bruder
*