Subversion Repositories shark

Error running this command: /usr/local/bin/svn --non-interactive --config-dir /tmp log --xml --verbose -r 3:2 'file:///home/shark/svn/shark/branches/xen/include/kernel/func.h@3'
svn: E160013: File not found: revision 3, path '/shark/branches/xen/include/kernel/func.h'