|
Problem IC81736
|
Status: Closed |
DB2ACD CRASH IN HMONTHREAD::POSTPARENT |
| product: |
DB2 FOR LUW / DB2FORLUW / 950 - DB2 |
| Problem description: |
db2acd (DB2 Health Monitor process) Signal #11 crash in
hmonThread::postParent
</Siginfo_t>
Signal #11 (SIGSEGV): si_addr is 0x0000000000000060, si_code is
0x00000001 (SEGV_MAPERR:Address not mapped to object.)
</SignalDetails>
<POFDisassembly>
_ZN15OSSHIPCWaitpost4postEPKv + 0x007c
(/db2/db2fmt/sqllib/lib64/libdb2osse.so.1)
0x00002AF93E72913C : 48F7476001000000
</POFDisassembly>
<StackTrace>
-----FUNC-ADDR---- ------FUNCTION + OFFSET------
0x00002AF93E74598F ossDumpStackTraceEx + 0x01ef
(/db2/db2fmt/sqllib/lib64/libdb2osse.so.1)
0x00002AF93E740756 _ZN11OSSTrapFile6dumpExEmiP7siginfoPvm +
0x00cc
(/db2/db2fmt/sqllib/lib64/libdb2osse.so.1)
0x00002AF93D695AA4 sqlo_trce + 0x040a
(/db2/db2fmt/sqllib/lib64/libdb2.so.1)
0x00002AF93D697524 sqlo_dari_trca + 0x00dc
(/db2/db2fmt/sqllib/lib64/libdb2.so.1)
0x000000338860EB10 address: 0x000000338860EB10 ; dladdress:
0x0000003388600000 ; offset in lib: 0x000000000000EB10 ;
(/lib64/libpthread.so.0)
0x00002AF93E72913C _ZN15OSSHIPCWaitpost4postEPKv + 0x007c
(/db2/db2fmt/sqllib/lib64/libdb2osse.so.1)
0x00002AF942D520CD _ZN10hmonThread10postParentEa + 0x0041
(/db2/db2fmt/sqllib/lib64//libdb2hmon.so)
0x00002AF942D547F9 _ZN17hmonJobExecThread3runEv + 0x0061
(/db2/db2fmt/sqllib/lib64//libdb2hmon.so)
0x00002AF942D5213D _ZN10hmonThread10entryPointEPv + 0x002d
(/db2/db2fmt/sqllib/lib64//libdb2hmon.so)
0x00002AF942D52778 _Z17hmonThreadWrapperPv + 0x00ce
(/db2/db2fmt/sqllib/lib64//libdb2hmon.so)
0x000000338860673D address: 0x000000338860673D ; dladdress:
0x0000003388600000 ; offset in lib: 0x000000000000673D ;
(/lib64/libpthread.so.0)
0x0000003387AD3D1D clone + 0x006d
(/lib64/libc.so.6)
</StackTrace>
Memory corruption caused by synchronization issue between
threads due to small timing issue due to design limitation.
This APAR will fix the synchronization issue in db2acd (DB2
Health Monitor process) and prevent it from crashing. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See ERROR DESCRIPTION. *
****************************************************************
* RECOMMENDATION: *
* Apply v9.5 Fixpack 10 to the DB2 server. *
**************************************************************** |
| Local Fix: |
|
| Solution |
First fixed in v9.5 Fixpack 10. This is a server side fix. |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 29.02.2012
21.08.2012
21.08.2012 |
| Problem solved at the following versions (IBM BugInfos) |
9.5.FP10
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.5.0.10
|
 |
