I found this in the source for Watchdog_Insert() file: rtems-4.5.1-pre3/c/src/exec/score/src/watchdoginsert.c 47 for ( after = _Watchdog_First( header ) ; 48 ; 49 after = _Watchdog_Next( after ) ) { 50 <snip> 81 } 82 Am I missing a patch? -John