Error :

=====

ORA-00600: internal error code, arguments: [krr_init_lbufs_1], [74]

Scenario:
=======
When we are applying the archives for recovering the database in the middle of a recovery we face this error after applying some of the archvies.

ORA-00279: change 568074198 generated at 03/13/2009 10:47:27 needed for thread 1

ORA-00289: suggestion :

/u02test/archivelogs/archivelog_test_1_2684_655528279.log

ORA-00280: change 556095143 for thread 1 is in sequence #2834

ORA-00278: log file '/u02test/archivelogs/

archivelog_test_1_2684_655528279.log'

no longer needed for this recovery

ORA-00283: recovery session canceled due to errors
ORA-00600: internal error code, arguments: [krr_init_lbufs_1], [74],[66],[43], [], [], [], [], [], [], [], []
ORA-01112: media recovery not started
Only 1 hit in metalink but fortunately a documented bypass ( from bug 7373196 evidently ).

Solution :
========

Bug in 64 bit 11.1.0.7 ...
Shut down the instance
Add the following parameter in pfile
_max_io_size=4194304

Now mount the same and start the recovery.