depmod write a error

["schnatan" <schnatan@phantasy-star.de>]

hello people,

i use debian stable release 2.2.r4 with kernel 2.2.19

if i write "depmod -e" , the system put out follow error message

depmod: *** Unresolved symbols in /lib/modules/2.2.19/fs/binfmt_aout.o
depmod:         do_truncate

any ideas why?

greets

schnadda