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标题：asmlib异常报ORA-00600[kfklLibFetchNext00]

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一个朋友的历史库出现故障,在linux 4的平台上asm的10.2.0.1的单库，asm使用asmlib来处理。
asm不能正常mount磁盘组，可以看到asmdisk，alert日志报ORA-00600[kfklLibFetchNext00]
操作系统内核是：2.6.9-78
oracleasmlib是：2.0.2-1
asm磁盘组mount失败

--以前故障
SQL> ALTER DISKGROUP ALL MOUNT 
Thu Sep  6 14:23:16 2012
NOTE: cache registered group DGARC number=1 incarn=0x2bf96274
NOTE: cache registered group DGDATA number=2 incarn=0x2c196275
NOTE: cache registered group DGSYS number=3 incarn=0x2c196276
Thu Sep  6 14:23:16 2012
Errors in file /opt/app/oracle/admin/+ASM/bdump/+asm_rbal_10204.trc:
ORA-15183: ASMLIB initialization error [driver/agent not installed]
Thu Sep  6 14:23:16 2012
Errors in file /opt/app/oracle/admin/+ASM/bdump/+asm_rbal_10204.trc:
ORA-15183: ASMLIB initialization error [/opt/oracle/extapi/64/asm/orcl/1/libasm.so]
ORA-15183: ASMLIB initialization error [driver/agent not installed]
Thu Sep  6 14:23:16 2012
ERROR: no PST quorum in group 1: required 2, found 0
Thu Sep  6 14:23:16 2012
NOTE: cache dismounting group 1/0x2BF96274 (DGARC) 
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DGARC was not mounted
Thu Sep  6 14:23:16 2012
ERROR: no PST quorum in group 2: required 2, found 0
Thu Sep  6 14:23:16 2012
NOTE: cache dismounting group 2/0x2C196275 (DGDATA) 
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DGDATA was not mounted
Thu Sep  6 14:23:16 2012
ERROR: no PST quorum in group 3: required 2, found 0
Thu Sep  6 14:23:16 2012
NOTE: cache dismounting group 3/0x2C196276 (DGSYS) 
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DGSYS was not mounted

--现在故障
Thu Jan 24 13:49:45 2013
SQL> ALTER DISKGROUP ALL MOUNT 
Thu Jan 24 13:49:45 2013
NOTE: cache registered group DGARC number=1 incarn=0xf388cee9
NOTE: cache registered group DGDATA number=2 incarn=0xf3a8ceea
NOTE: cache registered group DGSYS number=3 incarn=0xf3a8ceeb
Thu Jan 24 13:49:45 2013
Errors in file /opt/app/oracle/admin/+ASM/bdump/+asm_rbal_13449.trc:
ORA-00600: internal error code, arguments: [kfklLibFetchNext00], 
[18446744073709551614], [0], [], [], [], [], []
Thu Jan 24 13:49:46 2013
Errors in file /opt/app/oracle/admin/+ASM/bdump/+asm_rbal_13449.trc:
ORA-00600: internal error code, arguments: [kfklLibFetchNext00], 
[18446744073709551614], [0], [], [], [], [], []
Thu Jan 24 13:49:46 2013
ERROR: no PST quorum in group 1: required 2, found 0
Thu Jan 24 13:49:46 2013
NOTE: cache dismounting group 1/0xF388CEE9 (DGARC) 
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DGARC was not mounted
Thu Jan 24 13:49:46 2013
ERROR: no PST quorum in group 2: required 2, found 0
Thu Jan 24 13:49:46 2013
NOTE: cache dismounting group 2/0xF3A8CEEA (DGDATA) 
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DGDATA was not mounted
Thu Jan 24 13:49:46 2013
ERROR: no PST quorum in group 3: required 2, found 0
Thu Jan 24 13:49:46 2013
NOTE: cache dismounting group 3/0xF3A8CEEB (DGSYS) 
NOTE: dbwr not being msg'd to dismount
ERROR: diskgroup DGSYS was not mounted
Shutting down instance: further logons disabled

trace文件信息

----- Call Stack Trace -----
calling              call     entry                argument values in hex      
location             type     point                (? means dubious value)     
-------------------- -------- -------------------- ----------------------------
ksedst()+31          call     ksedst1()            000000000 ? 000000001 ?
                                                   000000000 ? 000000000 ?
                                                   000000000 ? 000000001 ?
ksedmp()+610         call     ksedst()             000000000 ? 000000001 ?
                                                   000000000 ? 000000000 ?
                                                   000000000 ? 000000001 ?
ksfdmp()+21          call     ksedmp()             000000003 ? 000000001 ?
                                                   000000000 ? 000000000 ?
                                                   000000000 ? 000000001 ?
kgerinv()+161        call     ksfdmp()             000000003 ? 000000001 ?
                                                   000000000 ? 000000000 ?
                                                   000000000 ? 000000001 ?
kgesinv()+33         call     kgerinv()            006469D40 ? 0064E1C58 ?
                                                   000000000 ? 000000000 ?
                                                   000000001 ? 000000001 ?
kgesinw()+166        call     kgesinv()            006469D40 ? 0064E1C58 ?
                                                   000000000 ? 000000000 ?
                                                   000000001 ? 000000001 ?
kfklLibScanNext()+2  call     kgesinw()            006469D40 ? 000000000 ?
39                                                 000000001 ? 000000000 ?
                                                   FFFFFFFFFFFFFFFE ?
                                                   000000000 ?
kfkLibFetchNext()+3  call     kfklLibScanNext()    0064DDD70 ? 7FBFFFDCD0 ?
43                                                 000000001 ? 000000000 ?
                                                   FFFFFFFFFFFFFFFE ?
                                                   000000000 ?
kfuitrnInit()+524    call     kfkLibFetchNext()    006469D40 ? 2A971DFF90 ?
                                                   000000001 ? 000000000 ?
                                                   FFFFFFFFFFFFFFFE ?
                                                   000000000 ?
kfkLibIterInit()+18  call     kfuitrnInit()        006469D40 ? 2A971DFCB0 ?
0                                                  2A971DFF90 ? 000000009 ?
                                                   000000009 ? 000000000 ?
kfkLoadAllLibs()+36  call     kfkLibIterInit()     000000000 ? 00646C7E0 ?
3                                                  2A971DFF90 ? 000000009 ?
                                                   000000009 ? 000000000 ?
kfkDiscoverString()  call     kfkLoadAllLibs()     000000000 ? 00646C7E0 ?
+107                                               2A971DFF90 ? 000000009 ?
                                                   000000009 ? 000000000 ?
Cannot find symbol
Cannot find symbol
Cannot find symbol
kfdDiscoverString()  call     kfkDiscoverString()  067A53768 ? 00646C7E0 ?
+28                                                2A971DFF90 ? 000000009 ?
                                                   000000009 ? 000000000 ?
kfdDiscoverShallow(  call     kfdDiscoverString()  067A53768 ? 000000000 ?
)+315                                              2A971DFF90 ? 000000009 ?
                                                   000000009 ? 000000000 ?
kfgbDriver()+1174    call     kfdDiscoverShallow(  000000180 ? 000000000 ?
                              )                    2A971DFF90 ? 000000009 ?
                                                   000000009 ? 000000000 ?
ksbabs()+564         call     kfgbDriver()         7FBFFFE5C0 ? 000000048 ?
                                                   000000000 ? 000000009 ?
                                                   000000009 ? 000000000 ?
ksbrdp()+727         call     ksbabs()             7FBFFFE5C0 ? 000000048 ?
                                                   000000000 ? 000000009 ?
                                                   000000009 ? 000000000 ?
opirip()+616         call     ksbrdp()             7FBFFFE5C0 ? 000000048 ?
                                                   000000001 ? 06002C770 ?
                                                   000000009 ? 000000000 ?
opidrv()+582         call     opirip()             000000032 ? 000000004 ?
                                                   7FBFFFF6C8 ? 06002C770 ?
                                                   000000009 ? 000000000 ?
sou2o()+114          call     opidrv()             000000032 ? 000000004 ?
                                                   7FBFFFF6C8 ? 06002C770 ?
                                                   000000009 ? 000000000 ?
opimai_real()+317    call     sou2o()              7FBFFFF6A0 ? 000000032 ?
                                                   000000004 ? 7FBFFFF6C8 ?
                                                   000000009 ? 000000000 ?
main()+116           call     opimai_real()        000000003 ? 7FBFFFF730 ?
                                                   000000004 ? 7FBFFFF6C8 ?
                                                   000000009 ? 000000000 ?
<0x3c9fb1c40b>       call     main()               000000003 ? 7FBFFFF730 ?
                                                   000000004 ? 7FBFFFF6C8 ?
                                                   000000009 ? 000000000 ?
 
--------------------- Binary Stack Dump ---------------------

因为客户的库是一个历史库，基本上不怎么使用，在2012年启动asm就出现了ORA-15183错误，然后在2013年重启机器后，再次启动asm就出现了ORA-00600[kfklLibFetchNext00]错误，通过2012年的错误提示，我们大概可以判断出来该问题和ASMLIB有关系,查询mos发现429945.1,发现Call Stack Trace完全一致，可以定位是该问题(如果想深入分析，可以通过strace继续分析)

ORA-600: [kfklLibFetchNext00], [18446744073709551614], [0] when mounting diskgroup in ASM

Applies to: 
Linux OS - Version: 2.0.1-1 and later   [Release: RHEL4 and later ]
Information in this document applies to any platform.
Linux Kernel - Version: 2.0.1 

Symptoms
 3 RAC db.  
2 nodes are up and functioning except for 1 node - ASM did not come back up after 
the reboot eventhough all disks show available from asmlib's perspective:
 
Changes
 All that was done with resources were stopped on Node1 and an extra LUN added. 
 A reboot was then performed.

Cause
 The cause of the issue is libasm.o corruption

Ran the following to confirm that disks are ok:
/dev/oracleasm listdisks
/usr/sbin/asmtool -I -l /dev/oracleasm -n /dev/sdg1 -a label
/usr/sbin/oracleasm-discover 'ORCL:*'
dd if=/dev/sdg1 bs=8192 count=1 | od -c
==> output checked out fine
.
kfod asm_diskstring='ORCL:*'
==> this failed on Node1
KFOD-00600: file not found; argument [610][kfklLibFetchNext00] even though libasm.o exists

You might see the following call stack as well

----- Call Stack Trace -----

kfklLibScanNext 
kfkLibFetchNext 
kfuitrnInit 
kfkLibIterInit 
kfkLoadAllLibs 
kfkDiscoverString 
kfdDiscoverString 
kfdDiscoverShallow 
kfgbDriver 

strace showed
 
 Node1-failing
-------
stat("/opt/oracle/extapi/64/asm/orcl/1/libasm.so", {st_mode=S_IFREG|0777, st_size=19344, ...}) = 0
 getdents64(4, /* 0 entries */, 4096) = 0 <<<<
 close(4) = 0
 open("/opt/oracle/product/10.2.0/db_1/rdbms/mesg/kfodus.msb", O_RDONLY) = -1 
 ENOENT (No such file or directory)
 open("/opt/oracle/product/10.2.0/db_1/rdbms/mesg/kfodus.msb", O_RDONLY) = -1 
 ENOENT (No such file or directory)
 fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 2), ...}) = 0
 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2a9750d000
write(1, "KFOD-00600: file not found; argu"..., 69) = 69

Node2-working
 -----
 stat("/opt/oracle/extapi/64/asm/orcl/1/libasm.so", {st_mode=S_IFREG|0755, st_size=19344, ...}) = 0
 open("/opt/oracle/extapi/64/asm/orcl/1/libasm.so", O_RDONLY) = 4
read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\23\0"..., 832) = 832
fstat(4, {st_mode=S_IFREG|0755, st_size=19344, ...}) = 0
mmap(NULL, 1066104, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) 0x2a9750d000

通过MOS的描述，可以明确定位到问题是:libasm.o异常导致

解决方案

To implement the solution, reinstall the ASMlib RPM
>rpm -Uvh oracleasmlib-2.0.0-1
 
This replaces the /opt/oracle/extapi/64/asm/orcl/1/libasm.so
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