#1  
Old 5th May 2009, 06:30 PM
Thomas Scherer
 
Posts: n/a
Default Re: Access Violation at address 00000000. Read of address 00000000


Time: [1488078] 05.05.2009 08:03:00
Server suspended: true
Exception: Exception
Message: Error: NexusDB: <unnamed TnxQuery instance>: Query preparation
failed:
Access violation at address 00638DC5 in module 'nxServer.exe'. Read of
address FFFFFFFF [$3CA1/15521]
Filesize:5484544
Filedate:03.05.2009 10:15:00
Computer:PC
User:Sabarstinski
ThreadID: 660
ProcessID: 1504
Callstack:
[00735325] nxptTCPRequestTransport.TnxSimpleTCPRequestSocket. DoExecute
(Line 282, "nxptTCPRequestTransport.pas")
[00735C18] nxptTCPRequestTransport.TnxSimpleTCPRequestSocket. Read (Line
404, "nxptTCPRequestTransport.pas")
[005EF0FF] nxllSocket.TnxCustomSocket.Event (Line 1738,
"nxllSocket.pas")
[005EEF03] nxllSocket.TnxAbstractSocket.DoEvent (Line 1639,
"nxllSocket.pas")
[005ED9C6] nxllSocket.TnxCustomWinSocket.Event (Line 947,
"nxllSocket.pas")
[005EEB4D] nxllSocket.TnxServerClientThread.DoRead (Line 1524,
"nxllSocket.pas")
[005EEE03] nxllSocket.TnxServerClientThread.ClientExecute (Line 1608,
"nxllSocket.pas")
[005EED05] nxllSocket.TnxServerClientThread.DoExecute (Line 1579,
"nxllSocket.pas")
[0051E3DB] nxllThread.TnxThread.Execute (Line 507, "nxllThread.pas")
[00434FEC] Classes.ThreadProc (Line 9877, "commonClasses.pas")
[00405790] System.ThreadWrapper (Line 12110, "syssystem.pas")
================================================== ============

*** Server started ***
Time: [693765] 05.05.2009 08:25:33
Exception: EAccessViolation
Message: Access violation at address 00405CA0 in module 'nxServer.exe'.
Read of address 00000004
Filesize:5484544
Filedate:03.05.2009 10:15:00
Computer:PC
User:Sabarstinski
ThreadID: 2656
ProcessID: 2060
Callstack:
[00405CA0] System.@LStrAddRef (Line 13196, "syssystem.pas")
[0076365C] nxBaseServerComp.TnxBaseServer.SaveSettings (Line 568,
"nxBaseServerComp.pas")
[007629B6] nxBaseServerComp.TnxBaseServer.bsGetSecureServer (Line 322,
"nxBaseServerComp.pas")
[00767564] nxServerForm.TnxuiServerForm.tmrSecurityCheckTimer (Line
561, "nxServerForm.pas")
[0044BF8B] ExtCtrls.TTimer.Timer (Line 2281, "ExtCtrls.pas")
[00436D70] Classes.StdWndProc (Line 11583, "commonClasses.pas")
================================================== ============

*****************************************
*** Fatal Exception Flag has been set ***
*****************************************


--
Thomas Scherer
  #2  
Old 5th May 2009, 06:47 PM
Thomas Scherer
 
Posts: n/a
Default Re: Access Violation at address 00000000. Read of address 00000000


Sorry for the big posts...

I donĀ“t see any problems with the memory at TaskManager.

nxserver.exe with a small size while my program is working.

But after a few minutes the server crashes.

Do you want to get my C# program? (Email)


Thomas


--
Thomas Scherer
  #3  
Old 5th May 2009, 06:51 PM
Hannes Danzl[NDD]
 
Posts: n/a
Default Re: Access Violation at address 00000000. Read of address 00000000

Thomas Scherer wrote:

>
> Time: [1488078] 05.05.2009 08:03:00
> Server suspended: true
> Exception: Exception
> Message: Error: NexusDB: <unnamed TnxQuery instance>: Query preparation
> failed:
> Access violation at address 00638DC5 in module 'nxServer.exe'. Read of
> address FFFFFFFF [$3CA1/15521]
> Filesize:5484544
> Filedate:03.05.2009 10:15:00
> Computer:PC


Sorry, I have no clue what's going on there

Again all i can do is ask for a reproducable test case. Can you see that same
problem on different server and client machines as well?
  #4  
Old 5th May 2009, 06:53 PM
Hannes Danzl[NDD]
 
Posts: n/a
Default Re: Access Violation at address 00000000. Read of address 00000000

Thomas Scherer wrote:

>
> Sorry for the big posts...
>
> I don4t see any problems with the memory at TaskManager.
>
> nxserver.exe with a small size while my program is working.
>
> But after a few minutes the server crashes.
>
> Do you want to get my C# program? (Email)


that would be great. Please send it to hannes at nexusdb dot com. thanks
  #5  
Old 5th May 2009, 06:53 PM
Hannes Danzl[NDD]
 
Posts: n/a
Default Re: Access Violation at address 00000000. Read of address 00000000

Thomas Scherer wrote:

>
> Sorry for the big posts...
>
> I don4t see any problems with the memory at TaskManager.
>
> nxserver.exe with a small size while my program is working.
>
> But after a few minutes the server crashes.
>
> Do you want to get my C# program? (Email)


Uh, if possible with the full database.
  #6  
Old 5th May 2009, 06:56 PM
Thomas Scherer
 
Posts: n/a
Default Re: Access Violation at address 00000000. Read of address 00000000


No problem, you get it in 2 minutes.

Thanks


--
Thomas Scherer
  #7  
Old 5th May 2009, 07:47 PM
Thomas Scherer
 
Posts: n/a
Default Re: Access Violation at address 00000000. Read of address 00000000


Hannes,

i tried it out. nxserver on an other machine than the client.

I tried the Select Update program.

Following after 2 minutes:

Time: [801062] 05.05.2009 09:50:10
Exception: EAccessViolation
Message: Access violation at address 00405CA0 in module 'nxServer.exe'.
Read of address 69747047
Filesize:5484544
Filedate:03.05.2009 10:15:00
Computer:KASSE2
User:Kasse
ThreadID: 2996
ProcessID: 2992
Current Window Caption: Nexus Database Server 2.08 [NexusDB / Active]
Current Window Class: TnxuiServerForm
Callstack:
[00405CA0] System.@LStrAddRef (Line 13196, "syssystem.pas")
[0076365C] nxBaseServerComp.TnxBaseServer.SaveSettings (Line 568,
"nxBaseServerComp.pas")
[007629B6] nxBaseServerComp.TnxBaseServer.bsGetSecureServer (Line 322,
"nxBaseServerComp.pas")
[00767564] nxServerForm.TnxuiServerForm.tmrSecurityCheckTimer (Line
561, "nxServerForm.pas")
[0044BF8B] ExtCtrls.TTimer.Timer (Line 2281, "ExtCtrls.pas")
[00436D70] Classes.StdWndProc (Line 11583, "commonClasses.pas")
================================================== ============

*****************************************
*** Fatal Exception Flag has been set ***
*****************************************


--
Thomas Scherer
  #8  
Old 6th May 2009, 08:03 PM
Hannes Danzl[NDD]
 
Posts: n/a
Default Re: Access Violation at address 00000000. Read of address 00000000

Hannes Danzl[NDD] wrote:

> Thomas Scherer wrote:
>
> >
> > Time: [1488078] 05.05.2009 08:03:00
> > Server suspended: true
> > Exception: Exception
> > Message: Error: NexusDB: <unnamed TnxQuery instance>: Query preparation
> > failed:
> > Access violation at address 00638DC5 in module 'nxServer.exe'. Read of
> > address FFFFFFFF [$3CA1/15521]
> > Filesize:5484544
> > Filedate:03.05.2009 10:15:00
> > Computer:PC

>
> Sorry, I have no clue what's going on there
>
> Again all i can do is ask for a reproducable test case. Can you see that same
> problem on different server and client machines as well?


We've had some talks directly with Thomas and identified a critical issue with
the NexusDB server under heavey load, especially from the ADO provider. We
fixed the issue and the seriousness of this issue triggered the immediate
release of 2.08.03.


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