2.6.25-rc8: FTP transfer errors

Today I've been using 2.6.25-rc8 with an old embedded build system here
for my empegs.  One shell script calls out to /usr/bin/ftp to transfer
an image to a remote system, and then read it back again and compare.

The compare is failing, most (but not all) of the time,
but only on 2.6.25-rc8, not on 2.6.24.  Verified by switching
back and forth between kernel versions for a short spell.

The ftp client is netkit-ftp 0.17-16 on Kubuntu feisty.

Switching to ncftpput/ncftpget avoids it on 2.6.25,
but I wonder where the problem is.

Too many things in the chain to easily debug.

-ml