This bug has been copied from bug #548685 and has been proposed to be backported to 5.5 z-stream (EUS).
Technical note added. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. New Contents: During a dump or reload, long BLOB (binary large object) values could be corrupted if they exceeded the maximum packet size set for MySQL. This update corrects the erroneous logic that caused incorrect insertion of a newline, resolving this issue.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2011-0184.html