Subject: bug#7113: 23.2; Crash on invalid path argument to dbus-introspect-xml

From: Ari Roponen <[email-masked]>
Date: Mon, 27 Sep 2010 10:01:07 +0300

Thomas Fitzsimmons <[email-masked]> writes:

> $ /usr/bin/emacs -Q --eval "(require 'dbus)" --eval '(dbus-introspect-xml :session "org.freedesktop.DBus" "")'
> process 23699: arguments to dbus_message_new_method_call() were incorrect, assertion "_dbus_check_is_valid_path (path)" failed in file dbus-message.c line 1078.
> This is normally a bug in some application using the D-Bus library.
>   D-Bus not built with -rdynamic so unable to print a backtrace
> Fatal error (6)Aborted (core dumped)
>

The crash happens because DBUS uses fatal warnings. Setting the
environment variable DBUS_FATAL_WARNINGS to 0 helps:

  DBUS_FATAL_WARNINGS=0 emacs -Q --eval "(require 'dbus)" --eval
  '(dbus-introspect-xml :session "org.freedesktop.DBus" "")'

This way the warning message is still printed but Emacs doesn't crash.

-- 
Ari Roponen