Oracle Database - Personal Edition - Version 11.1.0.6 to 12.1.0.2 [Release 11.1 to 12.1]
Oracle Database - Standard Edition - Version 11.1.0.6 to 12.1.0.2 [Release 11.1 to 12.1]
Oracle Database - Enterprise Edition - Version 11.1.0.6 to 12.1.0.2 [Release 11.1 to 12.1]
Microsoft Windows x64 (64-bit)
ORA-20011: Approximate NDV failed: ORA-12801: error signaled in parallel query server P004
ORA-08103: object no longer exists
KTRVAC: ktrvac returned error=8103
After identifying the data block causing the ORA-8103 using Note 8103.1, you should look for : 1. The block causing the ORA-8103 will have type: 0x2b=unknown 2. The dump of the block will have the string "7F87312B" at the first 8 bytes of the block were the Type, Format and filler are expected Example : buffer tsn: 9 rdba: 0x0b411b1d (45/72477) scn: 0x000c.bbdc43b5 seq: 0x01 flg: 0x06 tail: 0x43b50601 frmt: 0x01 chkval: 0x9bc1 type: 0x2b=unknownHex dump of corrupt header 4 = CORRUPT
This seems to be hardware related problem as the signature [7f87312b] seems to be a common memory overwrite sequence/signature found in some crashes reported by customers on Dell R910/R810 series machines. Contact DELL Support to request for the most up to date BIOS and drivers. Refer to http://social.technet.microsoft.com/Forums/fr-FR/88ba1f9a-e199-4a4b-9652-096154288897/bsoding-with-memorymanagement-1a-in-windows-server-2008-r2?forum=winservergen