[Nouveau] Segfault in libdrm

[Michel Hermier]

Hi,

When running a GL application after some random time I get the
following stacktrace on an nVidia Corporation NV44A [GeForce 6200]
(rev a1)
Here I have libdrm git c5286f4; mesa git dd2499b and a stock kernel
2.6.36. Someone else on IRC pointed that it also happens on NV49.