Here is a bit more information about the crash :
Xorg: main/renderbuffer.c:2153: _mesa_reference_renderbuffer: Assertion `oldRb->Magic == 0xaabbccdd' failed.
Here is a bit more information about the crash :
Xorg: main/renderbuff er.c:2153: _mesa_reference _renderbuffer: Assertion `oldRb->Magic == 0xaabbccdd' failed.