Exception [type: SIGSEGV, Address not mapped to object] [] [ kgegpa()+36]

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标题：Exception [type: SIGSEGV, Address not mapped to object] [] [ kgegpa()+36]

作者：惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

有朋友找我，由于客户硬件故障,导致控制文件损坏，重建控制文件的时候,由于失误依赖了100多个数据文件,并且进行了resetlogs操作,然后通过bbed修改文件头,再进行恢复,数据库在open过程中报ORA-03113错误

SQL> recover database;

Media recovery complete.

SQL> alter database Open ;

ERROR:

ORA-03113: end-of-file on communication channel

Process ID: 11207284

Session ID: 4537 Serial number: 1

对应的alert日志信息

Successful open of redo thread 1

MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set

Sat Dec 04 23:17:02 2021

SMON: enabling cache recovery

ARC3: Archival started

ARC0: STARTING ARCH PROCESSES COMPLETE

Sat Dec 04 23:17:03 2021

Exception [type: SIGSEGV, Address not mapped to object][ADDR:0x1604971A0][PC:0x1000E1764,kgegpa()+36][flags:0x0,count:1]

Exception [type: SIGSEGV, Address not mapped to object][ADDR:0x1604971A0][PC:0x1000E1764,kgegpa()+36][flags:0x2,count:2]

Exception [type: SIGSEGV, Address not mapped to object][ADDR:0x1604971A0][PC:0x1000E1764,kgegpa()+36][flags:0x2,count:2]

Sat Dec 04 23:17:07 2021

PMON (ospid: 10879866): terminating the instance due to error 397

Sat Dec 04 23:17:08 2021

System state dump requested by (instance=1, osid=10879866 (PMON)), summary=[abnormal instance termination].

System State dumped to trace file /oracle/app/oracle/diag/rdbms/xff/xff1/trace/xff1_diag_11076320.trc

Dumping diagnostic data in directory=[cdmp_20211204231708], requested by (instance=1, osid=10879866 (PMON)),

summary=[abnormal instance termination].

Sat Dec 04 23:17:09 2021

ORA-1092 : opitsk aborting process

通过对其启动过程进行跟踪确认在update undo$ 语句中异常

PARSING IN CURSOR #11529215044940435280 len=148 dep=1 uid=0 oct=6 lid=0 tim=223080942765

hv=3540833987 ad='c000000d67a42778' sqlid='5ansr7r9htpq3'

update undo$ set name=:2,file#=:3,block#=:4,status$=:5,user#=:6,undosqn=:7,xactsqn=:8,

scnbas=:9,scnwrp=:10,inst#=:11,ts#=:12,spare1=:13 where us#=:1

END OF STMT

PARSE #11529215044940435280:c=10000,e=8182,p=6,cr=55,cu=0,mis=1,r=0,dep=1,og=4,plh=0,tim=223080942764

BINDS #11529215044940435280:

 Bind#0

  oacdty=01 mxl=32(20) mxlc=00 mal=00 scl=00 pre=00

  oacflg=18 fl2=0001 frm=01 csi=873 siz=32 off=0

  kxsbbbfp=c000000d5fd299aa  bln=32  avl=20  flg=09

  value="_SYSSMU29_3935275865$"

 Bind#1

  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00

  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0

  kxsbbbfp=9fffffffbcc6e078  bln=24  avl=02  flg=05

  value=3

 Bind#2

  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00

  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0

  kxsbbbfp=9fffffffbcc6e048  bln=24  avl=03  flg=05

  value=128

 Bind#3

  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00

  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0

  kxsbbbfp=9fffffffbcc6e010  bln=24  avl=02  flg=05

  value=5

 Bind#4

  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00

  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0

  kxsbbbfp=9fffffffbcc6dfe0  bln=24  avl=02  flg=05

  value=1

 Bind#5

  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00

  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0

  kxsbbbfp=9fffffffbcc6dfb0  bln=24  avl=04  flg=05

  value=28921

 Bind#6

  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00

  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0

  kxsbbbfp=9fffffffbcc6df80  bln=24  avl=05  flg=05

  value=1245262

 Bind#7

  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00

  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0

  kxsbbbfp=9fffffffbcc6df48  bln=24  avl=06  flg=05

  value=1217986655

 Bind#8

  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00

  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0

  kxsbbbfp=9fffffffbcc6dc90  bln=24  avl=03  flg=05

  value=3621

 Bind#9

  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00

  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0

  kxsbbbfp=9fffffffbcc6dc60  bln=24  avl=01  flg=05

  value=0

 Bind#10

  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00

  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0

  kxsbbbfp=9fffffffbcc6dc30  bln=24  avl=02  flg=05

  value=2

 Bind#11

  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00

  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0

  kxsbbbfp=9fffffffbcc6dc00  bln=24  avl=02  flg=05

  value=2

 Bind#12

  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00

  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0

  kxsbbbfp=9fffffffbcc6e0a8  bln=22  avl=02  flg=05

  value=1

WAIT #4574659112: nam='db file sequential read' ela= 6835 file#=1 block#=842169 blocks=1 obj#=0 tim=90821816220340

通过分析,确认是由于undo事务异常,通过一系列处理之后,数据库启动报

SQL> alter database open;

alter database open

*

ERROR at line 1:

ORA-01092: ORACLE instance terminated. Disconnection forced

ORA-00600: internal error code, arguments: [4193], [], [], [], [], [], [], [], [], [], [], []

Process ID: 11206912

Session ID: 4537 Serial number: 1

对应alert日志报错

Successful open of redo thread 1

MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set

Sun Dec 05 02:42:02 2021

SMON: enabling cache recovery

SUCCESS: diskgroup FRA was mounted

Archived Log entry 1 added for thread 1 sequence 1 ID 0x14ba19ad dest 1:

Sun Dec 05 02:42:03 2021

NOTE: dependency between database xff and diskgroup resource ora.FRA.dg is established

Errors in file /oracle/app/oracle/diag/rdbms/xff/xff1/trace/xff1_ora_11206912.trc  (incident=5681243):

ORA-00600: internal error code, arguments: [4193], [], [], [], [], [], [], [], [], [], [], []

Incident details in: /oracle/app/oracle/diag/rdbms/xff/xff1/incident/incdir_5681243/xff1_ora_11206912_i5681243.trc

Use ADRCI or Support Workbench to package the incident.

See Note 411.1 at My Oracle Support for error and packaging details.

ARC3: Archival started

ARC0: STARTING ARCH PROCESSES COMPLETE

Sun Dec 05 02:42:05 2021

Dumping diagnostic data in directory=[cdmp_20211205024205], requested by (instance=1, osid=11206912),

summary=[incident=5681243].

Sun Dec 05 02:42:05 2021

Block recovery from logseq 2, block 3 to scn 13867049493730

Recovery of Online Redo Log: Thread 1 Group 2 Seq 2 Reading mem 0

  Mem# 0: +DATA/xff/onlinelog/group_2.log

Block recovery stopped at EOT rba 2.5.16

Block recovery completed at rba 2.5.16, scn 3228.2895062240

Block recovery from logseq 2, block 3 to scn 13867049493727

Recovery of Online Redo Log: Thread 1 Group 2 Seq 2 Reading mem 0

  Mem# 0: +DATA/xff/onlinelog/group_2.log

Block recovery completed at rba 2.5.16, scn 3228.2895062240

Errors in file /oracle/app/oracle/diag/rdbms/xff/xff1/trace/xff1_ora_11206912.trc:

ORA-00600: internal error code, arguments: [4193], [], [], [], [], [], [], [], [], [], [], []

Errors in file /oracle/app/oracle/diag/rdbms/xff/xff1/trace/xff1_ora_11206912.trc:

ORA-00600: internal error code, arguments: [4193], [], [], [], [], [], [], [], [], [], [], []

Error 600 happened during db open, shutting down database

USER (ospid: 11206912): terminating the instance due to error 600

Instance terminated by USER, pid = 11206912

ORA-1092 signalled during: alter database open...

opiodr aborting process unknown ospid (11206912) as a result of ORA-1092

Sun Dec 05 02:42:07 2021

ORA-1092 : opitsk aborting process

trace中关键信息和bbed对看到结果对应,通过bbed修改,数据库启动正常

    uba: 0x004cd9b9.02fb.0c ext: 0x19 spc: 0x1462

    uba: 0x00000000.02fb.02 ext: 0x19 spc: 0x1f06

    uba: 0x00000000.02fb.0d ext: 0x19 spc: 0x1970

    uba: 0x00000000.02fa.03 ext: 0x18 spc: 0x1e34

    uba: 0x00000000.02fa.03 ext: 0x18 spc: 0x1e34

 

   struct ktuxcfbp[0], 12 bytes             @4192   

      struct ktufbuba, 8 bytes              @4192   

         ub4 kubadba                        @4192     0x004cd9b9

         ub2 kubaseq                        @4196     0x02fb

         ub1 kubarec                        @4198     0x0c

      sb2 ktufbext                          @4200     25

      sb2 ktufbspc                          @4202     5218

以前有过类似恢复硬件恢复之后,数据库无法open故障恢复