I did fsck on ext4 on reboot on Ubuntu 9.10 by:
cd /forcefsck && reboot.
This went fine, but two new files appeared afterwards in /:
list-c. Both are empty.
What is the purpose of these files?
I found this OpenSUSE forum post describing this behavior as a bug in the ATI graphics driver, fglrx. Unfortunately, its link to the ATI bug tracker is broken, but the post gives some details. You may want to try upgrading fglrx or modifying