kill -9 doesn't work

[Ryan Byrd]

so I have a bunch(227) of processes that refuse to die. my top load
average is 232.58 currently. Here's a ps -auxww of one of those
processes:

nagios    5574  0.0  0.3  8276 2968 ?        D    09:08   0:00
/usr/bin/php -q /usr/local/nagios/libexec/check_replication.php


you'll notice that the processes are in the "D" state which seems to
indicate that they can not be interrupted.

Anyway to kill them without rebooting?

ideas?

mrb