客户系统linux4 x86_64 10.2.0.3，近日有如下报错：
Errors in file /u01/app/oracle/admin/lzrac/bdump/lzrac2_m001_26960.trc:
ORA-00600: internal error code, arguments: [kcbz_check_objd_typ_3], [0], [0], [1], [], [], [], []
查看相关METALINK和产生的TRACE文件
TRACLE文件部分内容：
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [kcbz_check_objd_typ_3], [0], [0], [1], [], [], [], []
Current SQL statement for this session:
SELECT count(*) over () as total_count, sd_xe_ash_nm.event_name, sd_xe_ash_nm.event_id, sd_xe_ash_nm.parameter1 as p1text, (CASE WHEN (sd_xe_ash_nm.parameter1 is NULL OR sd_xe_ash_nm.parameter1 = '0') THEN 0 ELSE 1 END) as p1valid, sd_xe_ash_nm.parameter2 as p2text, (CASE WHEN (sd_xe_ash_nm.parameter2 is NULL OR sd_xe_ash_nm.parameter2 = '0') THEN 0 ELSE 1 END) as p2valid, sd_xe_ash_nm.parameter3 as p3text, (CASE WHEN (sd_xe_ash_nm.parameter3 is NULL OR sd_xe_ash_nm.parameter3 = '0') THEN 0 ELSE 1 END) as p3valid, sd_xe_ash_nm.keh_evt_id, nvl(xc.class#, 0) as class_num, sd_xe_ash_nm.wait_class_id, nvl(xc.keh_id, 0) as keh_ecl_id, sd_xe_ash_nm.ash_cnt, sd_xe_ash_nm.tot_wts_diff, sd_xe_ash_nm.tot_tmo_diff, sd_xe_ash_nm.tim_wait_diff FROM ( SELECT sd_xe_ash.*, evtname.event_name, evtname.wait_class_id, evtname.parameter1, evtname.parameter2, evtname.parameter3 FROM ( SELECT sd_xe.*, nvl(ash.cnt, 0) as ash_cnt FROM ( SELECT nvl(xe.keh_id, 0) as keh_evt_id, nvl(sd.event_id, xe.event_hash) as event_id, nvl(sd.tot_wts_diff, 0) as tot_wts_diff, nvl(sd.tot_tmo_diff, 0) as tot_tmo_diff, nvl(sd.tim_wait_diff, 0) as tim_wait_diff FROM ( SELECT endsn.event_id as event_id, (endsn.total_waits - nvl(begsn.total_waits,0)) as tot_wts_diff, (endsn.total_timeouts - nvl(begsn.total_timeouts,0)) as tot_tmo_diff, (endsn.time_waited_micro - nvl(begsn.time_waited_micro,0)) as tim_wait_diff FROM ( SELECT end_snap.* FROM (SELECT t1.* FROM WRH$_SYSTEM_EVENT t1, WRM$_SNAPSHOT s1 WHERE t1.dbid = s1.dbid AND t1.instance_number = s1.instance_number AND t1.snap_id = s1.snap_id AND s1.bl_moved = 0 UNION ALL SELECT t2.* FROM WRH$_SYSTEM_EVENT_BL t2, WRM$_SNAPSHOT s2 WHERE t2.dbid = s2.dbid AND t2.instance_number = s2.instance_number AND t2.snap_id = s2.snap_id AND s2.bl_moved <> 0) end_snap WHERE end_snap.dbid = :dbid and end_snap.instance_number = :instance_number and end_snap.snap_id = :end_snap ) endsn LEFT OUTER JOIN ( SELECT beg_snap.* FROM (SELECT t1.* FROM WRH$_SYSTEM_EVENT t1, WRM$_SNAPSHOT s1 WHERE t1.dbid = s1.dbid AND t1.instance_number = s1.instance_number AND t1.snap_id = s1.snap_id AND s1.bl_moved = 0 UNION ALL SELECT t2.* FROM WRH$_SYSTEM_EVENT_BL t2, WRM$_SNAPSHOT s2 WHERE t2.dbid = s2.dbid AND t2.instance_number = s2.instance_number AND t2.snap_id = s2.snap_id AND s2.bl_moved <> 0) beg_snap WHERE beg_snap.dbid = :dbid and beg_snap.instance_number = :instance_number and beg_snap.snap_id = :beg_snap ) begsn ON endsn.event_id = begsn.event_id ) sd FULL OUTER JOIN X$KEHEVTMAP xe ON sd.event_id = xe.event_hash ) sd_xe LEFT OUTER JOIN (SELECT a.event_id, count(*) as cnt FROM (SELECT t1.* FROM WRH$_ACTIVE_SESSION_HISTORY t1, WRM$_SNAPSHOT s1 WHERE t1.dbid = s1.dbid AND t1.instance_number = s1.instance_number AND t1.snap_id = s1.snap_id AND s1.bl_moved = 0 UNION ALL SELECT t2.* FROM WRH$_ACTIVE_SESSION_HISTORY_BL t2, WRM$_SNAPSHOT s2 WHERE t2.dbid = s2.dbid AND t2.instance_number = s2.instance_number AND t2.snap_id = s2.snap_id AND s2.bl_moved <> 0) a WHERE a.dbid = :dbid and a.instance_number = :instance_number and a.snap_id > :beg_snap and a.snap_id <= :end_snap and a.wait_time = 0 GROUP BY a.event_id) ash ON sd_xe.event_id = ash.event_id ) sd_xe_ash, WRH$_EVENT_NAME evtname WHERE evtname.event_id = sd_xe_ash.event_id and evtname.event_id > 0 and evtname.dbid = :dbid ) sd_xe_ash_nm, X$KEHECLMAP xc WHERE sd_xe_ash_nm.wait_class_id = xc.class_hash ORDER BY sd_xe_ash_nm.wait_class_id, sd_xe_ash_nm.tim_wait_diff DESC, sd_xe_ash_nm.event_id
----- PL/SQL Call Stack -----
object line object
handle number name
0x111fc7790 10 package body SYS.PRVT_HDM
0x10eaf25d0 16 SYS.WRI$_ADV_HDM_T
0x119d97690 1535 package body SYS.PRVT_ADVISOR
0x119d97690 1618 package body SYS.PRVT_ADVISOR
0x111fc7790 106 package body SYS.PRVT_HDM
描述过程如下：
Oracle Server - Enterprise Edition - Version: 10.2.0.2 to 10.2.0.3
This problem can occur on any platform.
Symptoms
Segment Advisor is being used.
ORA-00600: internal error code, arguments: [kcbz_check_objd_typ_3], [4], [0], [15], [], [], [], []
With a stack trace similar to:
kgerinv kgeasnmierr kcbassertbd3 kcbz_check_objd_typ kcbzib kcbgtcr ktrget kdirfrs
ORA-600 [kcbnew_3] may be reported instead.
The PLSQL stack, if there is one, may have SYS.PRVT_ADVISOR or SYS.DBMS_SPACE near the top.
Cause
The cause of this problem has been identified and verified in an Unpublished Bug 4430244.
It is caused by the Segment Advisor code which can load blocks for dropped objects into cache as CURRENT leading to subsequent operations seeing an incorrect (old) version of a block.
Solution
This bug is fixed in our 10.2.0.4 patchset and 11g Release 1.
You can check if a patch is available for your patchset release and O/S environment Patch 4430244
To obtain a patch from MetaLink:
1) Click on Patches.
2) Click on Simple Search.
3) Enter your Patch number : 4430244
4) Select your platform
5) Click Go.
6) Read any applicable notes before downloading, then click the Download button.
Note: Please review the Readme file for instructions on how to install the patchset.
To avoid the issue in the short-term, turn off Segment Advisor by disabling 'Automatic Segment Advisor Job'. This is an advisory job so there will be no harm caused to your database by turning it off.
If you are encountering this bug, flush the buffer cache with the following command:
SQL> alter system flush buffer_cache;
to remove old copies of the block.
If you are using RAC then this will need to be done on all instances.
