Comment 2 for bug 1304447

The first part of the traceback is a bit of a red herring; it's an expected exception that is being handled: apport now wants to pass two arguments to add_info(), but the apparmor hook hasn't been updated to take into account the added ui argument, so apport falls back to invoking add_info() with one argument. This wouldn't be an issue except that the second exception is being raised. That said, the apparmor hook add_info() method should be updated to take the additional ui argument.

The second exception is because non-utf-8 strings are in /var/log/kern.log and the apparmor apport hook isn't handling that properly (the non-utf-8 strings are specific to the hardware the tests are being run on, hence the reason it doesn't fail everywhere).