Apparently the issue is caused by this commit https://gitlab.isc.org/wpk/bind9/commit/65a483106e45704e19781bfe4f4634db4f77562e which fixes a bug in the ISC heap library.
There seems to be a double-deletion of the released addresses in the dhcpv6 code. This quick-and-dirty patch helps (on ubuntu 18.04.1). ** Attachment added: "quick-and-dirty-patch" https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1781699/+attachment/5210380/+files/zajic-dhcpv6-fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1781699 Title: DHCPv6 server crashes regularly (bionic) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1781699/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
