I've just installed Redhat 6.1, and have noticed that I get
repeated messages of the form
"kernel: VFS: Disk change detected on device ide1(22,0)"
pouring into the syslogs.
The machine in question has an IDE ZIP disk and CDROM, but
no other IDE devices.
Obviously not a real problem, but a bit irritating.
This is due to magicdev polling your CD drive; check the CD properties
in the Gnome Control Center (gnomecc)
*** This bug has been marked as a duplicate of 6006 ***