Also occurs for me for emacs24 version 24.5+1-7.
Emacs clutters the xterm from where it is launched completely, which
renders xterm half-useless:
...
(emacs:12626): Gtk-WARNING **: GtkScrollbar 0x312c900 is drawn without a
current allocation. This should not happen.
(emacs:12626): Gtk-WARNING **: EmacsFixed 0xd51130 is drawn without a
current allocation. This should not happen.
...
I'm voting for raising the severity, since the bug affects several
people and the usability of another application (xterm).
