After mounting a scsi cdrom, lsmod reports, in part:
Module Size Used by
sr_mod 14904 1 (autoclean) (unused)
cdrom 4828 0 (autoclean) [sr_mod]
Note the "(unused)" which clearly wrong.
After unmounting the cdrom and waiting at least 3 minutes, lsmod still reports:
Module Size Used by
sr_mod 14904 0 (autoclean) (unused)
cdrom 4828 0 (autoclean) [sr_mod]
Same as before.
This is with a virgin 2.1.21 source patched with the modutils patch as well as a
complete set of new modutils.
Not the most major problem in the world.