#1  0x005c43d1 in sse2_blt () from /usr/lib/libpixman-1.so.0
#2  0x0058c324 in _pixman_implementation_blt () from /usr/lib/libpixman-1.so.0
#3  0x005b15a9 in pixman_blt () from /usr/lib/libpixman-1.so.0
#4  0x00376cca in fbCopyNtoN () from /usr/lib/xorg/modules/libfb.so
#5  0x007d7a9a in uxa_copy_n_to_n () from /usr/lib/xorg/modules/drivers/intel_drv.so
#6  0x081965e3 in miCopyRegion ()
#7  0x08196b0d in miDoCopy ()
#8  0x007d72f8 in uxa_copy_area () from /usr/lib/xorg/modules/drivers/intel_drv.so
#9  0x0811d714 in damageCopyArea ()
#10 0x0806c9fd in ProcCopyArea ()
#11 0x0806e167 in Dispatch ()
#12 0x08062855 in main ()