Hmm, could you please check this line for me: /home/jstokes/rockbox-2011-01/firmware/target/hosted/sdl/button-sdl.c:278 In my source code version, it's an empty line??
Anway, it seems to be a NULL pointer access. It might help to -start- the program in gdb and make it crash, maybe it outputs more information than with the first backtrace.
~ $ gdb /opt/rockbox/bin/rockbox GNU gdb 6.8-debian Copyright (C) 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "arm-linux-gnueabi"... (gdb) run Starting program: /opt/rockbox/bin/rockbox [New LWP 1912] [New LWP 1908] Program received signal SIGSEGV, Segmentation fault. 0x425d15d4 in SDL_Flip () from /usr/lib/libSDL-1.2.so.0