Well, as interface is going down I wait a few seconds, make copy of logged messages, and than re-insert r8169 module.
Last system update was about a half hour ago. This bug is mentioned only while transferring data out. ** Attachment added: "part of the logs" http://librarian.launchpad.net/7078793/logpart.txt -- RTL8111/8168B hangs whole PC (r8169) in feisty https://launchpad.net/bugs/91895 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs