Comment 20 for bug 1127497

(gdb) p *priv
$2 = {
  pixmap = 0x7f79de9d5220,
  gpu_bo = 0x0,
  cpu_bo = 0x7f79dead4330,
  gpu_damage = 0x7f79de849421,
  cpu_damage = 0x0,
  ptr = 0x7f79d6499000,
  list = {
    next = 0x7f79dead6970,
    prev = 0x7f79dead6970
  },
  stride = 1280,
  clear_color = 0,
  source_count = 4,
  pinned = 0 '\000',
  create = 11 '\v',
  mapped = 0 '\000',
  flush = 0 '\000',
  shm = 0 '\000',
  clear = 0 '\000',
  header = 0 '\000',
  cpu = 0 '\000'
}

I'll build the tree and get back to you