I've been having the same issue for some months now, whenever I run 3D apps like Flightgear. I just installed Nvidia-driver 295.40 but the bug persists. This is what I get from dmesg:
[ 3517.677021] NVRM: Xid (0000:02:00): 8, Channel 00000003
[ 3519.674699] NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context
The system freezes for 15 secs, then runs for 10 secs, then freezes back again!
I saw the 'internal Bug ID: 970252'. Is there a place where we can post logs and details, or should I post them here?
Thanks in advance!
Hardware: i7 920, 12Gb RAM, NVIDIA GTX_260, RME Hammerfall HDSP9652.
Software: Gentoo Linux, kernel 3.2.1-r2, Nvidia-drivers 295.40.