(WW) ****INVALID IO ALLOCATION**** b: 0xf0000400 e: 0xf00004ff correcting
(EE) end of block range 0xefffffff < begin 0xf0000000
(EE) R128(0): mmap mmio: Invalid argument

(WW) ****INVALID IO ALLOCATION**** b: 0xf0000400 e: 0xf00004ff correcting
(EE) end of block range 0xefffffff < begin 0xf0000000
(EE) R128(0): mmap mmio: Invalid argument

Backtrace:
0: /usr/bin/X11/X(xf86SigHandler+0x98) [0x1008edfc]
1: [0x100374]
2: /usr/lib/xorg/modules/drivers/r128_drv.so [0xf7f63a8]
3: /usr/lib/xorg/modules/drivers/r128_drv.so(R128PreInit+0x6f0) [0xf7fabc4]
4: /usr/bin/X11/X(InitOutput+0xb28) [0x10064fe8]
5: /usr/bin/X11/X(main+0x290) [0x100253e4]
6: /lib/libc.so.6 [0xfc46728]
7: /lib/libc.so.6 [0xfc46978]