ADO.NET application get AccessViolationException as below when
inserting LOB as array input:
Unhandled Exception: System.AccessViolationException: Attempted
to read or write protected memory. This is often an indication
that other memory is corrupt.
at
IBM.Data.DB2.UnsafeNativeMethods.DB232.SQLParamDataADONET(IntPtr
hStmt, IntPtr& rgbValue, Int32& iRowsAffected, Int32&
pCursorType, Int32& pbfOutFlags)
at
IBM.Data.DB2.DB2Command.StreamInputParameters(CommandBehavior
behaviour, Boolean bBatchStmt, Boolean bIsExecNonQuery, Int32&
iTotalRowsAffected, Int32& iCursorType, Int32& bfFlags)
at
IBM.Data.DB2.DB2Command.ExecuteReaderObject(CommandBehavior
behavior, String method, DB2CursorType reqCursorType, Boolean
abortOnOptValueChg, Boolean skipDeleted, Boolean isResultSet,
Int32 maxRows, Boolean skipInitialValidation)
at
IBM.Data.DB2.DB2Command.ExecuteReaderObject(CommandBehavior
behavior, String method)
at IBM.Data.DB2.DB2Command.ExecuteReader(CommandBehavior
behavior)
at IBM.Data.DB2.DB2Command.ExecuteReader()
at Orcas.TestOrcas.LOBXMLSP(DB2Connection conn) in
C:\svtwkld\OrcasAppl\TestOrcas.cs:line 1992
at Orcas.TestOrcas.startSelect() in
C:\svtwkld\OrcasAppl\TestOrcas.cs:line 203
at System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state,
Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext
executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
After analyzing the generated core, we get below stack trace.
This stack gets generated when db2trc was on and db2trc is
trying to dump the corrupted source buffer:
00000000`3eb4cdf8 00000000`1d4b0cd3
DB2OSSE64!_intel_new_memcpy+0x13d4
00000000`3eb4ce00 00000000`1cec40d6 DB2OSSE64!_gtraceVar+0x1cd
[gtrace.C @ 2630]
00000000`3eb4ced0 00000001`8030b3d5 db2sys64!pdtData10+0x23a
[pdtraceapi.C @ 811]
00000000`3eb4d020 00000001`801fc33e
db2app64!CLI_callbDrdaInputLob+0x2237
[E:\db2_v97fp8\ntx64\s130316\engn\cli\clibindin.skl @ 1854] |
