Experienced some slowness on a MailScanner machine running bind 9.2.1 today & noticed this in the logs: Dec 19 14:10:12 mailfilter named[790]: task.c:395: REQUIRE((((task) != ((void *)0)) && (((const isc__magic_t *)(task))->magic == ((d Dec 19 14:10:12 mailfilter named[790]: exiting (due to assertion failure) It restarted fine. Any advise? Thanks, Ken A.