I have a similar problem. Community wil certainly have not the skill / time to debug the nvidia.ko....
How to identify that theses oops are caused by the nvidia proprietary driver ? - I ran memtest86 during several minutes and no problemo - I ran Xorg with driver nv and no problemo - My computer crashes and the kernel oops when I start Xorg with the nvidia driver (ubuntu 6.06, kernel 2.6.15-25-k7) -- kernel oops during kernel rebuild - Unable to handle kernel paging request at virtual address 00004005 https://launchpad.net/bugs/49359 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs