Error writing base64 data: APR does not understand this error code

Hi,

We upgraded to subversion 1.6.6 and Apache 2.2.14 on windows 2k3 server and
started getting the below mentioned errors

*Error writing base64 data: APR does not understand this error code*
*Provider encountered an error while streaming a REPORT response. 500, #0*

This error occurs while committing large files and taking larger updates,
small commits and updates work fine.

We are clueless on same kindly advise.

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Vishwajeet Singh
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