IT22441: DB2 INSTANCE MAY TRAP DUE TO CORRUPTED FCM BUFFER
IT22441: DB2 INSTANCE MAY TRAP DUE TO CORRUPTED FCM BUFFER
https://www.ibm.com/mysupport/s/defect/aCI3p000000kFEH/dt158261?language=en_US
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On DPF environment, DB2 instance may trap due to receiving
corrupted FCM buffer.
db2diag has the following pattern of messages.
EDUID : 1286 EDUNAME: db2fcmr 20
FUNCTION: DB2 UDB, fast comm manager,
sqkfTcpServices::recvDataBuffer, probe:20
RETCODE : ZRC=0x800F00FC=-2146500356=SQLO_INV_PARM "Invalid
input parameter"
EDUID : 1286 EDUNAME: db2fcmr 20
FUNCTION: DB2 UDB, fast comm manager,
sqkfTcpServices::recvCommBuffer, probe:40
RETCODE : ZRC=0x8159006A=-2124873622=SQLKF_COMM_FAIL "FCM
communications failed"
EDUID : 1286 EDUNAME: db2fcmr 15
FUNCTION: DB2 UDB, fast comm manager,
sqkfFastCommManager::RouteInboundBuffer, probe:10
MESSAGE : Unexpected buffer type recvd =
And the following stack can be shown.
sqkfBufferManager::FreeBuffer(sqkfBuffer*)
sqkfTcpServices::sendCommBuffer(sqkfBuffer*,sqkfDataTarget*)
sqlo_completion_queue.sqkfSendConduit::HandleRequests.fdpr.chunk
.13(sql_static_data*)
sqkfSendConduit::RunEDU()
sqle_application.sqzEDUObj::EDUDriver()
sqloEDUEntry
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****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Db2 10.5 Fix Pack 10 or higher *
****************************************************************
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First fixed in Db2 10.5 Fixpack 10
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None.
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