The following RMAN error was received when running a compressed backup of a 1TB+ database on Oracle 10.1.0.4.0 on Solaris 9.

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03015: error occurred in stored script full_backup

RMAN-03002: failure of backup plus archivelog command at 07/22/2010 05:31:40

ORA-00600: internal error code, arguments: [17114], [0xFFFFFFFF78900020], [], [], [], [], [], []

ORA-00600: internal error code, arguments: [kgh_heap_sizes:ds], [0xFFFFFFFF78900010], [], [], [], [], [], []

Recovery Manager complete.

This appears to be an issue with this particular environment (OS and/or Oracle version) however nothing was logged in /var/adm/messages to suggest a hardware issue.

Solution: remove RMAN compression from the backups.  Removing compression also had a vast performance improvement.