Program received signal SIGSEGV, Segmentation fault.
0x08081466 in skin_render (gwps=0x81bb990, refresh_mode=4294901760)
    at /home/mc2739/rockbox/apps/gui/skin_engine/skin_render.c:740
740	    skin_viewport = (struct skin_viewport *)viewport->data;
(gdb) backtrace
#0  0x08081466 in skin_render (gwps=0x81bb990, refresh_mode=4294901760)
    at /home/mc2739/rockbox/apps/gui/skin_engine/skin_render.c:740
#1  0x0807bda5 in skin_update (skin=FM_SCREEN, screen=SCREEN_MAIN,
    update_type=4294901760)
    at /home/mc2739/rockbox/apps/gui/skin_engine/skin_display.c:92
#2  0x08091f6a in radio_screen ()
    at /home/mc2739/rockbox/apps/radio/radio.c:437
#3  0x080631ef in radio (param=0x0)
    at /home/mc2739/rockbox/apps/root_menu.c:321
#4  0x08063452 in load_screen (screen=5)
    at /home/mc2739/rockbox/apps/root_menu.c:561
#5  0x080637c4 in root_menu ()
    at /home/mc2739/rockbox/apps/root_menu.c:732
#6  0x0804e3bd in main (argc=1, argv=0xbffff464)
    at /home/mc2739/rockbox/apps/main.c:196