svn: REPORT request failed on '/svn/!svn/bc/20890'

[zhangfan]

Hi All

         I am using svn1.6.3. I put all source code and documents of our
team into one repo. It works great for two years until last month. Now when
I run 'svn log http://192.168.0.3:907/svn' (where 192.168.0.3 is our
server's address), svn returns 'svn: REPORT request failed on
'/svn/!svn/bc/20890' after returned some log information.

         Is there anyone know how to handle this? Our server is: Windows2003
+ Apache2.2

         Thanks for reading this letter,and thanks for any help!