As STORMCHAS3R reported, in my case, I've just installed Knot 2 and them this crash happen. It is probably related to a fresh/recent install. That's why it never happened again to me and probably STORMCHAS3R.
-- Sudden crash https://launchpad.net/bugs/59120 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs