Did you install a different gcc?
You appear to be compiling the NVIDIA kernel module with a compiler different from the one that was used to compile the running kernel. This may be perfectly fine, but there are cases where this can lead to unexpected behaviour and system crashes.
There must be some reason the installer thinks the gcc in your system is different from the one that compiled your kernel.
I like to rebuild the kernel source rpms tailored to my system - after booting up with the new kernel, I do the nvidia thing, and it happily rebuilds the module -
Joe
