SVN new repository unable to be accessed through httpd

A new Berkeley-db-based SVN repository was created by:

svnadmin create /var/svnroot/repo/common_lib

When trying to access it from http, a error was thrown complaining that the SVN file system can't be read.

Looking at the httpd log /var/log/httpd/error_log:

svn error: Internal error: Berkeley DB error for filesystem while opening environment

Actually this is caused by Linux FS privilidges. Run the following two commands:

find /var/lib/svn/repository -type f -exec chmod 660 {} \;
find /var/lib/svn/repository -type d -exec chmod 2770 {} \;