Kushal: Just as a slight possibility, you might check to see that the SELinux stuff is turned off (use the "sestatus" command). If it's not disabled/off then you're going to have to allow the http account to access that data by setting the appropriate security context throughout all directories from the root ('/') down to where the SVN data is stored in that 2nd EXT4 partition - and then the entire SVN data tree.
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