Comment 1 for bug 631007

On my T410 system with a quad-core Intel Core i7 processor, I confirmed I was able to replicate the failure if CCACHE_DISABLE is not set:

<tytso.root@tytso-glaptop> {/home/tytso}
2051# unset CCACHE_DISABLE
<tytso.root@tytso-glaptop> {/home/tytso}
2052# dpkg-reconfigure nvidia-current
Removing all DKMS Modules
Done.
dpkg-trigger: dpkg-trigger must be called from a maintainer script (or with a --by-package option)
update-initramfs: Generating /boot/initrd.img-2.6.35-20-generic
update-initramfs: Generating /boot/initrd.img-2.6.34-5-generic
Loading new nvidia-current-256.53 DKMS files...
Building for 2.6.34-5-generic and 2.6.35-20-generic
Building for architecture x86_64
Building initial module for 2.6.34-5-generic

Error! Bad return status for module build on kernel: 2.6.34-5-generic (x86_64)
Consult the make.log in the build directory
/var/lib/dkms/nvidia-current/256.53/build/ for more information.

I've attached the make.log file for your information.

The nvidia modules compile successfully if I run the command "export CCACHE_DISABLE=1" before running the command "dpkg-reconfigure nvidia-current".