As many others I have had some problems with svndumpfilter in the last couple of days. Yesterday I decided to move yet another directory from our old subversion repository to a fresh repository of its own. As I have mentioned earlier I simply tried to issue the following command:
svnadmin dump /path/to/repos | svndumpfilter include rss > rss.dump
After issuing the following command:
svnadmin dump /path/to/repos | ./svndumpfilter2 /path/to/repos rss > rss.dump
everything seemed to be working as expected.