For a couple of weeks, totem 2.28.5 on Debian has been crashing with SIGSEGV at startup with a message "Invalid column number 6 added to iter (remember to end your list of columns with a -1)". Traceback says this comes from a bad call to strlen, from somewhere under totem_action_set_mrl_with_warning. To fix it, I manually updated totem-common from 2.28.1-1 to 2.28.5-1.