Oracle 10.2 - (RMAN + SYS user Audit_Trail = XML, Extended) bug

After enabling auditing for sys users, as discussed in my below post.
http://rakeshocp.blogspot.com/2008/12/auditing-sys-user-in-10g.html
When we are trying to connect database with RMAN utility, it fails and gives below error.

H:\>rman
Recovery Manager: Release 10.2.0.1.0 - Production on Tue Apr 7 14:59:17 2009
Copyright (c) 1982, 2005, Oracle. All rights reserved.

RMAN> connect target sys/rock@rock

RMAN-00571: =======================================================
RMAN-00569: ============= ERROR MESSAGE STACK FOLLOWS ==============
RMAN-00571: =======================================================
ORA-09817: Write to audit file failed.
RMAN>

I got to know its bug in Oracle 10g Release 10.2.0.1.0. Check my post at oracle forums .
http://forums.oracle.com/forums/message.jspa?messageID=3282187#3282187

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