If a scene contains old texface objects, blenderplayer 2.61 will segfault while loading it. Some texface conversion messages are printed to the console; then, it crashes when trying to access G.main, which is NULL (see attached stack trace).
This is probably an unimportant bug, since the workaround is so simple: load the file in 2.61, and save it. Now that I know the workaround, I would be content with the bug being simply closed.
== System info ==
OS: Ubuntu 11.10 (64-bit)
Blender: r42947 (2.61+)
Video: ATI Mobility Radeon HD 5430 (closed fglrx driver)
CPU: Intel Core i5 U 430