I came across this bug ages ago on my RedHat systems and several times in the past week.
$ cd /mnt/dos/photos
$ du -csh
du: fts_read failed: Stale NFS file handle
Segmentation fault
$ ls
ls: .: Stale NFS file handle
Here’s a detailed RedHat bug report where Alan Cox supplied a fix way back in May this year. Why the 2.4 kernel in Debian Linux still shows this bug happening is a mystery to me!
I do have 2.6 installed as well but I had to drop to 2.4 to burn some CDs. I can’t remember if I saw this happening there too.