ORA-00600[25027]错误的触发原因是ORACLE检测到一个无效的表空间号TSN Tablespace Number或者相对文件号Relative File Number。
该ORA-00600[25027]的2个变量各代表：
arg[a] Tablespace Number表空间号
arg[b] 十进制的相对数据块号Relative Data Block Address (RDBA)
该ORA-00600[25027]错误相关的模块为Kernel File management Tablespace component，其影响为可能的物理块损坏。
当该错误触发后 如果 arg[b] 即RDBA为0，则该错误可能由于索引问题引起。
可以使用如下查询来获得有问题的索引：
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;
如果上面的查询返回了数据行，则建议用户进一步检查查询所获得的对象，并考虑drop这些对象来绕过错误。
进一步可以对trace文件中指向的表做一个analyze table validate structure cascade，来进一步确认该问题。
与ORA-00600[25027]相关的一些BUG列表如下：
NB
Bug
Fixed
Description
14010183
11.2.0.3.BP22, 11.2.0.4.BP03, 12.1.0.2, 12.2.0.0
ORA-600 [ktspfundo:objdchk_kcbgcur_3] in SMON after failed temp segment merge load
13503554
11.2.0.4, 12.2.0.0
Various ORA-600 errors crashing the apply process in a downstreams environment
13785716
11.2.0.4, 12.1.0.1
Intermittent ORA-600 [25027] during upgrade from 10.2 to 11.2
11661824
11.2.0.1.BP09
Assorted Dumps by SQL*LOADER using DIRECT and PARALLEL after exadata bp8 is applied
10067246
12.2.0.0
ORA-600 [25027] ORA-7445 [kauxs_do_dml_cooperation] by CREATE INDEX ONLINE
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
13330018
11.2.0.4, 12.1.0.1
ora-600 [ktspfmb_add1], [4294959240] occurred, then cannot recover with ora-600[25027]
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
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
+
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
+
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
*
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
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
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
8716064
11.2.0.2, 12.1.0.1
Analyze Table Validate Structure fails on ADG standby with several errors
+
8597106
11.2.0.1.BP06, 11.2.0.2, 12.1.0.1
Lost Write in ASM when normal redundancy is used
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
8356966
11.2.0.1
ORA-7445 [kdr9ir2rst] by DBMS_ADVISOR or false ORA-1498 by ANALYZE on COMPRESS table
*
8198906
10.2.0.5, 11.2.0.1
OERI [kddummy_blkchk] / OERI [5467] for an aborted transaction of allocating extents
*
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
*
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
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
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
...)
