backtrace2

Unhandled memory fault at #x0.
   [Condition of type SB-SYS:MEMORY-FAULT-ERROR]

Restarts:
 0: [RETRY] Retry SLIME REPL evaluation request.
 1: [*ABORT] Return to SLIME's top level.
 2: [ABORT] abort thread (#<THREAD "repl-thread" RUNNING {10030AFFA3}>)

Backtrace:
  0: (SB-SYS:MEMORY-FAULT-ERROR)
  1: ("foreign function: call_into_lisp")
  2: ("foreign function: post_signal_tramp")
  3: ("foreign function: funcall3")
  4: ("foreign function: callback_wrapper_trampoline")
  5: ("foreign function: #x20100F07")
  6: (CL-GLUT:MAIN-LOOP)
  7: ((:METHOD CL-GLUT:DISPLAY-WINDOW :AROUND (CL-GLUT:WINDOW)) #<CL-GLUT-EXAMPLES::MODEL-WINDOW {10041FF193}>) [fast-method]
  8: (SB-INT:SIMPLE-EVAL-IN-LEXENV (CL-GLUT-EXAMPLES:RB-MODEL) #<NULL-LEXENV>)
  9: (EVAL (CL-GLUT-EXAMPLES:RB-MODEL))