Subversion file and directory name size limit

[Dave Smith]

Do file and directory names have a size limit when controlled by 
subversion? I have a directory in my subversion project called 
"foobarfoobar" and if I create a new directory "foobarfoobarfoo" (notice 
the extra three characters), it confuses the two and moves files from 
one to the other and tells me the longer one is already under version 
control when I try to "svn add" it. Any help? Google hasn't been 
forthcoming for me.

--Dave