MOS contains 95 results for the search "kddummy_blkchk". Anything look like your case? Harel Safra On Mon, Dec 13, 2010 at 7:53 PM, Gupta, Deepender K <DGUPTA@xxxxxxxxxxx>wrote: > > ORA-01110: data file 15: '/u01/oradata/rbtp/sysaux_01.dbf' > ORA-10561: block type 'TRANSACTION MANAGED INDEX BLOCK', data object# > 231764 > ORA-00600: internal error code, arguments: [kddummy_blkchk], [15], > [186825], [6401], [], [], [], [] > Mon Dec 13 09:11:03 2010 > Errors with log /u06/arch/rbtp/arch_460544197_1_153892.arc > Mon Dec 13 09:11:03 2010 > Media Recovery failed with error 12801 > >