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ERROR:

VERSIONS:
  versions 9.2 and above


ARGUMENTS:
  Arg [a]  Tablespace Number (TSN)
  Arg [b]  Decimal Relative Data Block Address (RDBA)

In 12c it includes Multitenant information:
  
  Arg [a]  0 if Multitenant is not enabled or 0 if there is not Root CDB session, 1 ROOT PDBID, otherwise PDBID top session
  Arg [b]  PDBID
  Arg [c]  Tablespace Number (TSN)
  Arg [d]  Decimal Relative Data Block Address (RDBA)



SUGGESTIONS:
  
 1. If the Arg [b] onr [d] in 12c (the RDBA) is 0 (zero), then this could be caused by fake indexes.

  The following query will list fake indexes:

     select do.owner,do.object_name, do.object_type,sysind.flags
     from dba_objects do, sys.ind$ sysind
     where do.object_id = sysind.obj#
     and bitand(sysind.flags,4096)=4096;

  If the above query returns any rows, check the objects involved and consider dropping them as they can cause this error. 

2. Run analyze table validate structure on the table referenced in the Current SQL statement in 
    the related trace file.

  If the Known Issues section below does not help in terms of identifying
  a solution, please submit the trace files and alert.log to Oracle 
  Support Services for further analysis.

  Known Issues:

You can restrict the list below to issues likely to affect one of the following versions by clicking the relevant button: 
               

 

 

NB	Prob	Bug	Fixed	Description
	II	18878420		ORA-600 [25027] can occur with large datafiles using ASSM
	I	18490543	12.1.0.2, 12.2.0.0	ORA-600 [25027][0][0] from ALTER TABLE .. MOVE with nosegment index
	I	14576755	12.1.0.1.4, 12.1.0.2, 12.2.0.0	Corruption type ORA-600 errors from heavy concurrent DML on index cluster table
	II	14010183	11.2.0.3.BP22, 11.2.0.4.2, 11.2.0.4.BP03, 12.1.0.1.4, 12.1.0.2, 12.2.0.0	ORA-600 [ktspfundo:objdchk_kcbgcur_3] in SMON after failed temp segment merge load
	III	13503554	11.2.0.4, 12.2.0.0	Various ORA-600 errors crashing the apply process in a downstreams environment
	II	13785716	11.2.0.4, 12.1.0.1	Intermittent ORA-600 [25027] during upgrade from 10.2 to 11.2
	I	11661824	11.2.0.1.BP09	Assorted Dumps by SQL*LOADER using DIRECT and PARALLEL after exadata bp8 is applied
	II	19171086	12.2.0.0	ORA-600 [25027] when local index has unusable index partitions
	II	10067246	12.1.0.2, 12.2.0.0	ORA-600 [25027] ORA-7445 [kauxs_do_dml_cooperation] ORA-8102 during CREATE INDEX ONLINE
	III	13505390	11.2.0.3.BP04, 11.2.0.4	ORA-600 [kkedsgettabblkcnt: null segment] / ORA-600 [25027] against PARTITION table with Delayed Segment Creation or Interval Partitioned Table
	II	14138130	11.2.0.3.5, 11.2.0.3.BP13, 11.2.0.4, 12.1.0.1	SGA memory corruption / ORA-7445 when modifying uncompressed blocks of an HCC-compressed segment
	II	13566938	11.2.0.3.4, 11.2.0.3.BP10, 11.2.0.4, 12.1.0.1	ORA-600 [kcbgtcr_1] / ORA-600 [kkpo_rcinfo_defstg:objnotfound] / ORA-600 [25027] against a Partitioned Table during Dynamic Sampling
	II	13330018	11.2.0.4, 12.1.0.1	ora-600 [ktspfmb_add1], [4294959240] occurred, then cannot recover with ora-600[25027]
	III	13103913	11.2.0.2.BP15, 11.2.0.3.3, 11.2.0.3.BP03, 11.2.0.4, 12.1.0.1	ORA-600 [25027] [ts#] [1] or false ORA-1 during dml while index is being rebuilt online
	II	12821418	11.2.0.3.8, 11.2.0.3.BP18, 11.2.0.4, 12.1.0.1	Direct NFS appears to be sending zero length windows to storage device. It may also cause Lost Writes
	II	12619529	11.2.0.3.BP18, 11.2.0.4, 12.1.0.1	ORA-600[kdsgrp1] from SELECT on plugged in tablespace with FLASHBACK
	II	12321309	11.2.0.4, 12.1.0.1	ORA-600 / ORA-8103 UNUSABLE state of partitioned index is not carried across by TABLESPACE transport using DataPump
	III	10394825	11.2.0.3, 12.1.0.1	ORA-600[25027] [..] [0] inserting to ASSM segment
	-	10329146	11.2.0.1.BP10, 11.2.0.2.2, 11.2.0.2.BP03, 11.2.0.2.GIBUNDLE02, 11.2.0.2.GIPSU02, 11.2.0.3, 12.1.0.1	Lost write in ASM with multiple DBWs and a disk is offlined and then onlined
+	II	10209232	11.1.0.7.7, 11.2.0.1.BP08, 11.2.0.2.1, 11.2.0.2.BP02, 11.2.0.2.GIBUNDLE01, 11.2.0.3, 12.1.0.1	ORA-1578 / ORA-600 [3020] Corruption. Misplaced Blocks and Lost Write in ASM
+	IIII	9399991	11.1.0.7.5, 11.2.0.1.3, 11.2.0.1.BP04, 11.2.0.2, 12.1.0.1	Assorted Internal Errors and Dumps (mostly under kkpa*/kcb*) from SQL against partitioned tables
*	III	9145541	11.1.0.7.4, 11.2.0.1.2, 11.2.0.2, 12.1.0.1	OERI[25027]/OERI[4097]/OERI[4000]/ORA-1555 in plugged datafile after CREATE CONTROLFILE in 11g
E	II	8837919	11.2.0.2, 12.1.0.1	DBV / RMAN enhanced to detect ASSM blocks with ktbfbseg but not ktbfexthd flag set as in Bug 8803762
	III	8803762	11.1.0.7.6, 11.2.0.1.2, 11.2.0.1.BP06, 11.2.0.2, 12.1.0.1	ORA-600[kdsgrp1], ORA-600[25027] or wrong results on 11g database upgrade from 9i
	II	8716064	11.2.0.2, 12.1.0.1	Analyze Table Validate Structure fails on ADG standby with several errors
+	II	8597106	11.2.0.1.BP06, 11.2.0.2, 12.1.0.1	Lost Write in ASM when normal redundancy is used
	II	7251049	11.2.0.1.BP08, 11.2.0.2, 12.1.0.1	Corruption in bitmap index introduced when using transportable tablespaces
	-	8437213	10.2.0.4.3, 10.2.0.5, 11.1.0.7.7, 11.2.0.1	ASSM first level bitmap block corruption
	III	8356966	11.2.0.1	ORA-7445 [kdr9ir2rst] by DBMS_ADVISOR or false ORA-1498 by ANALYZE on COMPRESS table
*	III	8198906	10.2.0.5, 11.2.0.1	OERI [kddummy_blkchk] / OERI [5467] for an aborted transaction of allocating extents
*	III	7263842	10.2.0.4.2, 10.2.0.5, 11.1.0.7.1, 11.2.0.1	ORA-955 during CTAS / OERI [ktsircinfo_num1] / dictionary inconsistency for PARTITIONED Tables
	-	6666915	10.2.0.5, 11.1.0.7, 11.2.0.1	OERI[25027] / dictionary corruption from concurrent partition DDL
	-	6025993	10.2.0.5, 11.1.0.6	ORA-600 [25027] in flashback archiving queries
	-	4925342	9.2.0.8, 10.2.0.3, 11.1.0.6	OERI [25027] / OERI [25012] on IOT analyze estimate statistics
*	IIII	7190270	10.2.0.4.1, 10.2.0.5	Various ORA-600 errors / dictionary inconsistency from CTAS / DROP
	-	4310371	9.2.0.8, 10.2.0.2	OERI [25027] from concurrent startup / shutdown in RAC
	-	4177651	10.2.0.1	Row migration within a MERGE may OERI[25027]
	-	4020195	10.1.0.5, 10.2.0.1	OERI 25027 can occur in RAC accessing transported tablespace
	-	4000840	9.2.0.7, 10.1.0.4, 10.2.0.1	Update of a row with more than 255 columns can cause block corruption
	II	3963135	10.1.0.5, 10.2.0.1	OERI[kcbgcur_3] / OERI:25027 during bitmap index updates
	-	3829900	10.1.0.4, 10.2.0.1	OERI[25027] possible accessing index in 10g
	-	2942185	9.2.0.6, 10.1.0.4, 10.2.0.1	Corruption occurs on direct path load into IOT with ADDED columns
	II	3085057	10.1.0.2	ORA-600: [25027] from ALTER TABLE .. SHRINK SPACE CASCADE
	-	2926182	9.2.0.5, 10.1.0.2	OERI[25027] / ORA-22922 accessing LOB columns in IOT in AFTER UPDATE trigger