Bug 16227

Using drm (incl. kernel modules), mesa, X from todays git glxgears tells me

Failed to initialize TTM buffer manager.  Falling back to classic.

Why that?

Xorg.0.log says

(II) [drm] loaded kernel module for "i915" driver.
(II) [drm] DRM interface version 1.3
(II) [drm] DRM open master succeeded.
(II) intel(0): [drm] Using the DRM lock SAREA also for drawables.
(II) intel(0): [drm] framebuffer mapped by ddx driver
(II) intel(0): [drm] added 1 reserved context for kernel
(II) intel(0): [drm] installed DRM signal handler
(II) intel(0): [drm] Registers = 0xeff00000
(II) intel(0): [drm] ring buffer = 0xd0000000
(II) intel(0): [drm] Initialized kernel agp heap manager, 33554432
(II) intel(0): [drm] dma control initialized, using IRQ 16
(II) intel(0): [drm] mapped front buffer at 0xd3000000, handle = 0xd3000000
(II) intel(0): [drm] mapped back buffer at 0xd2000000, handle = 0xd2000000
(II) intel(0): [drm] mapped depth buffer at 0xd1000000, handle = 0xd1000000
(II) intel(0): [drm] mapped classic textures at 0xddff5000, handle = 0xddff5000

dmesg says
[drm] Initialized drm 1.1.0 20060810
PCI: Unable to reserve mem region #3:10000000@d0000000 for device 0000:00:02.0
PCI: Setting latency timer of device 0000:00:02.0 to 64
[drm] Initialized i915 1.13.0 20080312 on minor 0
[drm] Used old pci detect: framebuffer loaded