(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.
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: /github. com/psi- im/iris/ tree/master/ src/jdns/ tools/jdns
https:/
(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.