protected_change_timeout will return false if an other thread is reorganising timeouts. This is OK in most cases but this will cause dbus_connection_send_with_reply to error out (with out of memory as error) when it calls _dbus_connection_attach_pending_call_unlocked if an other thread is removing a timeout while its called.
*** This bug has been marked as a duplicate of bug 17754 ***
on Feb 25, 2017 at 13:33:33.
(provided by the Example extension).