I often get an checksum error when hudson is performing an update. This is the
error:

org.tmatesoft.svn.core.SVNException: svn: Checksum mismatch while reading
representation:

However, I can check out the code using the command line version. I did some
googling and see more reports about this problem around the web with no real
solution.

Now, my problem with hudson is, is the fact that this resulted in 200 failed
builds before I could disable the build (as I committed the code just before I
left the office). In a way I would classify this as an internal hudson error and
now new builds should be attempted until either a new code change or a manual
build is triggered.