We got the following error message in one of the trace file in our background dump dest of Oracle 10g R2 (10.2.0.1) database.
kcrrwkx: nothing to do (end)
Troubleshooting and Resolution:
On searching of different forums and metalink, we found the note number: 372364.1, and according to the note, the message is safely ignored, and the only impact would be the size of the trace file, which needs to be purged manually or with cron job. The fix of this bug is in Oracle 11g or Oralce R2 10.2.0.3.