Looks like that program dig is not affected, so not all stub resolvers are non working.
Kopete uses libiris xmpp library which uses jdns resolver. It is 100% reproducable. I tested also new upstream 4.x kernels and they do not have this problem. Only ubuntu kernels >= 3.13.0-69. If you need to test jdns library, upstream project has also example dns lookup cmdline tool in git repo: https://github.com/psi-im/iris/tree/master/src/jdns/tools/jdns (Call it with arg "-6" against some IPv6 DNS server) I tested it and it reacts exactly same as Kopete, on 3.13.0-69 kernel (and above) just do not receive UDP IPv6 packets. As I wrote in description strace show that every recvfrom() calls just return -EAGAIN. But wireshark see that packets was received. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1527902 Title: 3.13.0-71: IPv6 UDP DNS packets are not received To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1527902/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
