[kdl_trim]: newlen: 0

bdump下有n多trace檔案，內容類似下面：

[kdl_trim]: newlen [ID 567307.1]

這個是oracle的bug，可以忽略這這trace
官方解釋如下：

 

Applies to:
Oracle Server - Enterprise Edition - Version: 10.2.0.4 to 10.2.0.4
Information in this document applies to any platform.
***Checked for relevance on 07-Jan-2010***
Symptoms
After upgrading database to 10.2.0.4,mmon generates trace files every hour.

Trace file content,

*** ACTION NAME:(Auto ADDM Slave Action) 2008-03-26 16:00:31.890
*** MODULE NAME:(MMON_SLAVE) 2008-03-26 16:00:31.890
*** SERVICE NAME:(SYS$BACKGROUND) 2008-03-26 16:00:31.890
*** SESSION ID:(625.3179) 2008-03-26 16:00:31.890
[kdl_trim]: newlen: 0
[kdl_trim]: newlen: 0
[kdl_trim]: newlen: 0
[kdl_trim]: newlen: 0
[kdl_trim]: newlen: 0
[kdl_trim]: newlen: 0

Cause
This is due to the unpublished 6972843

Solution
1) These trace files are unnecessary and we can disregard them.

Or

2)Apply the patch for the unpublished 6972843 if its available for your OS.

If Patch is not available for your OS than raise an ticket with Oracle support requesting for one-off patch.

References

來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/13177610/viewspace-680284/，如需轉載，請註明出處，否則將追究法律責任。