Comment 17 for bug 438458

Added some extra debug messages around the for loop at line 820 in xsplash.c and it looks like the problem is with how we iterate through the signal list:
[02:46:36:1158476869 - MSG] xsplash started
[02:46:36:1158477102 - MSG] get_background_filename(): looking for appropriate resolution...
[02:46:36:1158477142 - MSG] ** 2560x1600 will work.
[02:46:36:1158477165 - MSG] ** 1920x1200 will work.
[02:46:36:1158477187 - MSG] ** 1680x1050 will work.
[02:46:36:1158477209 - MSG] ** 1440x900 will work.
[02:46:36:1158477231 - MSG] ** 1280x1024 will work.
[02:46:36:1158477253 - MSG] ** 1024x768 is too small, using last good size.
[02:46:36:1158477275 - MSG] ** Found a resolution: 1280x1024
[02:46:36:1158477299 - MSG] ** filename: /usr/share/images/xsplash/bg_1280x1024.jpg
[02:46:36:1158477324 - MSG] get_logo_filename(): looking for the best logo for screen width...
[02:46:36:1158477350 - MSG] ** Chose `small'
[02:46:36:1158477372 - MSG] ** logo filename is: /usr/share/images/xsplash/logo_small.png
[02:46:36:1158477395 - MSG] get_throbber_filename(): looking for the best throbber for screen width...
[02:46:36:1158477420 - MSG] ** Chose `small'
[02:46:36:1158477442 - MSG] ** throbber filename is: /usr/share/images/xsplash/throbber_small.png
[02:46:36:1158477465 - MSG] background_image = /usr/share/images/xsplash/bg_1280x1024.jpg
[02:46:36:1158477487 - MSG] logo_image = /usr/share/images/xsplash/logo_small.png
[02:46:36:1158477509 - MSG] throbber_image = /usr/share/images/xsplash/throbber_small.png
[02:46:36:1158494635 - MSG] get_logo_filename(): user provided a logo on the command line; using that
[02:46:36:1158494724 - MSG] get_throbber_filename(): user provided a throbber on the command line; using that
[02:46:36:1158783070 - MSG] throbber started (50 frames)
[02:46:42:1152255362 - MSG] received a new signal to wait for: gnome-panel
[02:46:42:1152255466 - MSG] adding signal `gnome-panel'
[02:46:44:1150324026 - MSG] received a new signal to wait for: nautilus
[02:46:44:1150324116 - MSG] adding signal `nautilus'
[02:46:44:1150324162 - MSG] tmp->data is `gnome-panel'
[02:46:46:1148945376 - MSG] received a new signal to wait for: netbook-launcher
[02:46:46:1148945469 - MSG] adding signal `netbook-launcher'
[02:46:46:1148945494 - MSG] tmp->data is `nautilus'
[02:46:46:1148945516 - MSG] tmp->data is `gnome-panel'
[02:46:46:1148945538 - MSG] tmp->data is `gnome-panel'
[02:46:46:1148945560 - MSG] tmp->data is `gnome-panel'
[02:46:46:1148945581 - MSG] tmp->data is `gnome-panel'
[02:46:46:1148945603 - MSG] tmp->data is `gnome-panel'
[02:46:46:1148945624 - MSG] tmp->data is `gnome-panel'
[02:46:46:1148945645 - MSG] tmp->data is `gnome-panel'
(continues until I kill xsplash)