Hi, Today my Debian bind 9.4.1 crash suddenly, the log says: 18-Jul-2007 12:37:20.025 general: critical: time.c:136: INSIST(t->nanoseconds < 1000000000) failed 18-Jul-2007 12:37:20.025 general: critical: exiting (due to assertion failure) What does that mean???? Thanks.