what is nconf (in a linux kernel config context) and why is it apparently spinning on cpu every time I save and exit?

ok, I sort of know the answer to the first part, but wth is it doing here?

``` PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 26192 dan 20 0 245780 31048 2480 R 99.7 0.2 2:57.56 nconf

```