I patched a fresh 2.4.22 with 20031105 from cvs and configured the 
kernel for inftl insead of nftl.

$ modprobe -a doc200 inftl mtdchar mtdblock
$ modprobe -a  docprobe

produced the attached /var/log/messages and also those lines that were 
not in the log file;

INFTL: corrupt block 7140 in chain 7140, chain length 0, erase mark 0x0?
INFTL: formatting chain at block 7140
INFTL: error while formatting block 7140

repeated for a few more addresses.

also the loading of docprobe.o seem to fail most of times, even though 
/dev/inftla1 is available for me to mount and create files on it.

relevant part of /var/log/messages attached.

Chris.