.
Thread 2 (process 15164):
#0  0x00002b0b1fb43b31 in nanosleep () from /lib/libc.so.6
#1  0x00002b0b1dfd09a4 in SDL_Delay () from /usr/lib/libSDL-1.2.so.0
#2  0x00002b0b1dfd09de in ?? () from /usr/lib/libSDL-1.2.so.0
#3  0x00002b0b1df87e37 in ?? () from /usr/lib/libSDL-1.2.so.0
#4  0x00002b0b1dfce4b9 in ?? () from /usr/lib/libSDL-1.2.so.0
#5  0x00002b0b2267f3f7 in start_thread () from /lib/libpthread.so.0
#6  0x00002b0b1fb7d95d in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()
.
Thread 1 (process 15159):
#0  0x00002b0b1fb22d52 in memcpy () from /lib/libc.so.6
#1  0x00002b0b1dfa01b0 in ?? () from /usr/lib/libSDL-1.2.so.0
#2  0x00002b0b1dfa0907 in ?? () from /usr/lib/libSDL-1.2.so.0
#3  0x00002b0b1dfa0c91 in SDL_SetCursor () from /usr/lib/libSDL-1.2.so.0
#4  0x00002b0b1dfa0e36 in SDL_FreeCursor () from /usr/lib/libSDL-1.2.so.0
#5  0x000000000052b118 in ?? ()
#6  0x00002b0b1fadb110 in exit () from /lib/libc.so.6
#7  0x00002b0b1fe4de1a in _XDefaultIOError () from /usr/lib/libX11.so.6
#8  0x00002b0b1fe4de94 in _XIOError () from /usr/lib/libX11.so.6
#9  0x00002b0b1fe5435c in _XGetXCBBuffer () from /usr/lib/libX11.so.6
#10 0x00002b0b1fe5518d in _XReply () from /usr/lib/libX11.so.6
#11 0x00002b0b1fe49aaa in XSync () from /usr/lib/libX11.so.6
#12 0x00002b0b1f4a5ecc in __glXWindowExists () from /usr/lib/libGL.so.1
#13 0x00002aaaab75968f in DRICheckWindowExists ()
   from /usr/lib/dri/fglrx_dri.so
#14 0x00002aaaab758fd4 in DRILockWinInfo () from /usr/lib/dri/fglrx_dri.so
#15 0x00002aaaab75cee9 in driLockWinInfo () from /usr/lib/dri/fglrx_dri.so
#16 0x00002aaaab7b8cd4 in ?? () from /usr/lib/dri/fglrx_dri.so
#17 0x00002aaaab7b736b in lnxioCmdBufSubmit () from /usr/lib/dri/fglrx_dri.so
#18 0x00002aaaab678cd0 in ioCmdBufSubmit2 () from /usr/lib/dri/fglrx_dri.so
#19 0x00002aaaab63839e in ?? () from /usr/lib/dri/fglrx_dri.so
#20 0x00002aaaab638262 in coraSubmitCommandBuffer ()
   from /usr/lib/dri/fglrx_dri.so
#21 0x00002aaaab638279 in ?? () from /usr/lib/dri/fglrx_dri.so
#22 0x00002aaaab5f1afd in Khan_VpSetConst () from /usr/lib/dri/fglrx_dri.so
#23 0x00002aaaab6506d6 in gsl::FloatConstStoreObject::loadVPConstants ()
   from /usr/lib/dri/fglrx_dri.so
#24 0x00002aaaab650407 in gsl::ConstStoreObject::loadConstants ()
   from /usr/lib/dri/fglrx_dri.so
#25 0x00002aaaab6504b7 in gsl::ConstStoreObject::load ()
   from /usr/lib/dri/fglrx_dri.so
#26 0x00002aaaab6518db in gslSyncUpload () from /usr/lib/dri/fglrx_dri.so
#27 0x00002aaaab66e3da in gsomSyncUpload () from /usr/lib/dri/fglrx_dri.so
#28 0x00002aaaab24b318 in gllSH::ScState::validate ()
   from /usr/lib/dri/fglrx_dri.so
#29 0x00002aaaab24d98c in gllSH::ShaderBlock::Validate ()
   from /usr/lib/dri/fglrx_dri.so
#30 0x00002aaaab24e629 in svshValidate () from /usr/lib/dri/fglrx_dri.so
#31 0x00002aaaab268f00 in gllSV::svValidateDrawCmd ()
   from /usr/lib/dri/fglrx_dri.so
#32 0x00002aaaab267c89 in epsvInterceptMultiDrawElements ()
   from /usr/lib/dri/fglrx_dri.so
#33 0x00002aaaaaee0444 in gllEP::gpMultiDrawElements ()
   from /usr/lib/dri/fglrx_dri.so
#34 0x00002aaaaaede0ec in gllEP::gpPrimBatch::submit ()
   from /usr/lib/dri/fglrx_dri.so
#35 0x00002aaaaaede616 in gllEP::gpPrimBatch::combineAndFlush ()
   from /usr/lib/dri/fglrx_dri.so
#36 0x00002aaaaaeda0fe in gllEP::gpBeginEndVBOState::sendPrimitiveBuffer ()
   from /usr/lib/dri/fglrx_dri.so
#37 0x00002aaaaaed9e51 in gllEP::gpBeginEndVBOState::sendData ()
   from /usr/lib/dri/fglrx_dri.so
#38 0x00002aaaab051bed in gllEP::ep_tls_AlphaFunc ()
   from /usr/lib/dri/fglrx_dri.so
#39 0x000000000051d64a in ?? ()
#40 0x000000000051da0e in ?? ()
#41 0x0000000000419768 in ?? ()
#42 0x000000000041a5d2 in ?? ()
#43 0x00000000004b4939 in ?? ()
#44 0x00000000004b6c58 in ?? ()
#45 0x00000000004bad55 in ?? ()
#46 0x00000000004bb7bd in ?? ()
#47 0x00000000004bc8bf in ?? ()
#48 0x0000000000425424 in ?? ()
#49 0x000000000045f2f8 in ?? ()
#50 0x000000000046070a in ?? ()
#51 0x00002b0b1fac41c4 in __libc_start_main () from /lib/libc.so.6
#52 0x00000000004077d9 in ?? ()
#53 0x00007fff8cd4f7b8 in ?? ()
#54 0x0000000000000000 in ?? ()