#0  0xb804b424 in __kernel_vsyscall ()
#1  0xb7e8d670 in raise () from /lib/libc.so.6
#2  0xb7e8eeb8 in abort () from /lib/libc.so.6
#3  0xb7e8664e in __assert_fail () from /lib/libc.so.6
#4  0xb7aa16ac in r600MemFree (context=0x80558c8, id=1) at r600_mem.c:297
#5  0xb7aa24e5 in r600FreeDmaRegion (context=0x80558c8, region=0x8056010) at r600_mem.c:498
#6  0xb7ab66f7 in r700RunRender (ctx=0x8058c20, stage=0x80c4adc) at r700_render.c:389
#7  0xb7ab6767 in r700RunTCLRender (ctx=0x8058c20, stage=0x80c4adc) at r700_render.c:411
#8  0xb7b5f8d8 in _tnl_run_pipeline (ctx=0x8058c20) at tnl/t_pipeline.c:158
#9  0xb7b60879 in _tnl_draw_prims (ctx=0x8058c20, arrays=0x80b37d8, prim=0x8349134, nr_prims=3, ib=0x0,
        min_index=0, max_index=83) at tnl/t_draw.c:402
#10 0xb7b5ea22 in vbo_save_playback_vertex_list (ctx=0x8058c20, data=0x8351784) at vbo/vbo_save_draw.c:232
#11 0xb7acf4b2 in execute_list (ctx=0x8058c20, list=2) at main/dlist.c:5757
#12 0xb7ad44e7 in _mesa_CallList (list=2) at main/dlist.c:6844
#13 0x08049f33 in draw () at glxgears.c:269
#14 0x0804a10e in draw_gears () at glxgears.c:315
#15 0x0804a19b in draw_frame (dpy=0x804e008, win=27262978) at glxgears.c:340
#16 0x0804ac39 in event_loop (dpy=0x804e008, win=27262978) at glxgears.c:699
#17 0x0804af92 in main (argc=1, argv=0xbf864e84) at glxgears.c:779