Hi Ralf, sorry but the output of your shell wrapper is rather long. Do I understand it right that "time /usr/bin/host 209.73.175.193.dnsbl.njabl.org" gives you a segfault at 100% of the tries? Before you said time to time, so should we loop over it to see if one out of many reproduces this?
If it has crashed with a segfault you should find them in /var/crash, and can report them with apport-collect to add them to this bug. If you happen to know - Is this a new behavior due to an update? I see that newer versions report "2(SERVFAIL)" while the precise version does (as in your post) "3(NXDOMAIN)" Since only the first is slow I ran 1000 with the following loop but could not reproduce: for i in $(seq 1 1000); do time /usr/bin/host 209.73.175.193.dnsbl.njabl.org; done ** Changed in: bind9 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1685449 Title: host[47240]: segfault at 1f ip 00007f8c5a00db0c sp 00007f8c56bf7e20 error 6 in host.orig[7f8c5a001000+1a000] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bind9/+bug/1685449/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs