Access Violation in nt.dll error when running nxBackup

[ljohnston]

Hi,

We've just upgraded to 3.10 and found that when running the Nexus Backup, right after the last file is finished being backed up I get the following error.

"Unexpected exception object raised EAccessViolation in module nt.dll" nexus then cant be used till its restarted.

I call the Backup procedure from the TnxBackupController and it backs up every table but doesn't proceed any further in my code.

Here is the full error from the exception log:

Time: [86871527] 01/12/2011 12:42:27 PM
ExceptionInfo: $0466F700
ExceptionRecord: $0466F7B8
ExceptionCode: $C0000005 = EXCEPTION_ACCESS_VIOLATION - The thread tried to read from or write to a virtual address for which it does not have the appropriate access.
ExceptionFlags: $00000000
ExceptionRecord: $00000000
ExceptionAddress: $77C922C2
ExceptionInformation[0]: $00000001
ExceptionInformation[1]: $00000C60
ContextRecord:
ContextFlags: $0001007F
Dr0: $00000000
Dr1: $00000000
Dr2: $00000000
Dr3: $00000000
Dr6: $00000000
Dr7: $00000000
SegGs: $0000002B
SegFs: $00000053
SegEs: $0000002B
SegDs: $0000002B
Edi: $00000C5C
Esi: $00000C60
Ebx: $0062AE44
Edx: $00000000
Ecx: $00000060
Eax: $00000C60
Ebp: $0466FC80
Eip: $77C922C2
SegCs: $00000023
EFlags: $00010216
Esp: $0466FC6C
SegSs: $0000002B
Exception: nil!
Filesize: 8262400
Filedate: 2011-11-18 13:06:06
Computer: LUKE-PC
User: Luke
ThreadID: 2884
ProcessID: 2192
Version: 3.1 AWE Edition
AWE Enabled: False
Client: CevelopmentXXX.exe;Size:63630848;Date:2011-12-01 12:41:16;Computer:LUKE-PC;User:Luke
SessionID: 4265030096
Connected From: 127.0.0.1:60671
--------------------------------------------------------------
Callstack (Frames):
[77C922C2] RtlEnterCriticalSection
[0063224E] nxsrServerEngine.TnxServerTransaction.Rollback (Line 4922, "nxsrServerEngine.pas")
[006395B7] nxsrServerEngine.TnxServerTransContext.stcTransact ionRollback (Line 7768, "nxsrServerEngine.pas")
[00639E98] nxsrServerEngine.TnxServerTransContext.Transaction Rollback (Line 7978, "nxsrServerEngine.pas")
[006B0C42] nxchCommandHandler.TnxServerCommandHandler.nmTrans ContextTransactionRollback (Line 8389, "nxchCommandHandler.pas")
[0068D375] nxchCommandHandler.TnxServerCommandHandler.bchProc ess (Line 640, "nxchCommandHandler.pas")
[00553191] nxllTransport.TnxBaseTransport.btProcess (Line 1824, "nxllTransport.pas")
[0065BDD6] nxptBasePooledTransport.TnxBasePooledTransport.btP ayloadReceived (Line 3120, "nxptBasePooledTransport.pas")
[0065BA9F] nxptBasePooledTransport.TnxBasePooledTransport.btM essageReceived (Line 2998, "nxptBasePooledTransport.pas")
[006637A5] nxtwWinsockTransport.TnxWinsockServerConnection.Io Completed (Line 668, "nxtwWinsockTransport.pas")
[0066370C] nxtwWinsockTransport.TnxWinsockServerConnection.Io Completed (Line 647, "nxtwWinsockTransport.pas")
[00659A02] nxptBasePooledTransport.TnxBaseServerThread.InnerE xecute (Line 2100, "nxptBasePooledTransport.pas")
[0054ED1C] nxllThread.TnxInternalInitThread.DoExecute (Line 674, "nxllThread.pas")
[0054EAB3] nxllThread.TnxThread.Execute (Line 478, "nxllThread.pas")
[00461FF6] Classes.ThreadProc
[00407DEC] System.ThreadWrapper
--------------------------------------------------------------
Callstack (Raw):
[77C922C2] RtlEnterCriticalSection
[0063224E] nxsrServerEngine.TnxServerTransaction.Rollback (Line 4922, "nxsrServerEngine.pas")
[006395B7] nxsrServerEngine.TnxServerTransContext.stcTransact ionRollback (Line 7768, "nxsrServerEngine.pas")
[00639E98] nxsrServerEngine.TnxServerTransContext.Transaction Rollback (Line 7978, "nxsrServerEngine.pas")
[006B0C42] nxchCommandHandler.TnxServerCommandHandler.nmTrans ContextTransactionRollback (Line 8389, "nxchCommandHandler.pas")
[0068D375] nxchCommandHandler.TnxServerCommandHandler.bchProc ess (Line 640, "nxchCommandHandler.pas")
[00553191] nxllTransport.TnxBaseTransport.btProcess (Line 1824, "nxllTransport.pas")
[0065BDD6] nxptBasePooledTransport.TnxBasePooledTransport.btP ayloadReceived (Line 3120, "nxptBasePooledTransport.pas")
[0065BA9F] nxptBasePooledTransport.TnxBasePooledTransport.btM essageReceived (Line 2998, "nxptBasePooledTransport.pas")
[005412CE] nxllSync.TnxEvent.SignalEvent (Line 224, "nxllSync.pas")
[006637A5] nxtwWinsockTransport.TnxWinsockServerConnection.Io Completed (Line 668, "nxtwWinsockTransport.pas")
[0066370C] nxtwWinsockTransport.TnxWinsockServerConnection.Io Completed (Line 647, "nxtwWinsockTransport.pas")
[00659A02] nxptBasePooledTransport.TnxBaseServerThread.InnerE xecute (Line 2100, "nxptBasePooledTransport.pas")
[0054ED1C] nxllThread.TnxInternalInitThread.DoExecute (Line 674, "nxllThread.pas")
[0054EAB3] nxllThread.TnxThread.Execute (Line 478, "nxllThread.pas")
[00461FF6] Classes.ThreadProc
[00407DEC] System.ThreadWrapper

Any help would be appreciated,

Luke