Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

Hi there, I'm having a weird issue when I try to connect to my DB server from the machine in which is located.
I am using SSMS to connect to the DB. When i use the name of the sql server, I can connect without issues, but when I replace the name with an IP address and a port, i always get this error:
===================================
Cannot connect to 192.168.1.215,1433.
===================================
Attempted to read or write protected memory. This is often an indication that other memory is corrupt. (System.Data)
Program Location:
   at SNINativeMethodWrapper.SNIClose(IntPtr pConn)
   at System.Data.SqlClient.SNIHandle.ReleaseHandle()
   at System.Runtime.InteropServices.SafeHandle.InternalDispose()
   at System.Runtime.InteropServices.SafeHandle.Dispose(Boolean disposing)
   at System.Runtime.InteropServices.SafeHandle.Dispose()
   at System.Data.SqlClient.TdsParserStateObject.Dispose()
   at System.Data.SqlClient.TdsParser.Disconnect()
   at System.Data.SqlClient.SqlInternalConnectionTds.LoginFailure()
   at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, SqlCredential credential, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance)
   at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance,
SqlConnectionString userConnectionOptions, SessionData reconnectSessionData)
   at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
   at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.Open()
   at Microsoft.SqlServer.Management.SqlStudio.Explorer.ObjectExplorerService.ValidateConnection(UIConnectionInfo ci, IServerType server)
   at Microsoft.SqlServer.Management.UI.ConnectionDlg.Connector.ConnectionThreadUser()
But this only happens when I try to connect from the PC in which the sql server is, when I try to connect by TCP/IP from another machine on the same network, I can login without problems. 
Any help will be appreciated. 

Hello,
Lot of similar issues related to your post please check if any one is of any help
Attempt to read write protected memory
Similar issue answered here
Please mark this reply as the answer or vote as helpful, as appropriate, to make it useful for other readers
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    The problem is that the application works without any problems with the 10g DB but when switching to 11g we get an exception. Basically, we have a try { call COM component } catch(Ex ex) {...} and the Exception ex is a AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. I debugged the C++ part and this strange thing happens: the component opens the connection (using a connection string like this : "driver={Oracle in OraClient}; uid=... pwd=.. "), executes some queries, and on one query (which is the same as the last ones - just some selects), when the data is processed (by data I mean a integer ID), the exception is thrown in .NET code. I was able to enter in afxdb.cpp and it looks like the exception is thrown when GetData method is called. I looked over the ID's from previous queries and the data passed to GetData method is about the same (I mean the fieldtype, index, len, SQL type).
    As solutions I tried:
    -set "Statement Cache Purge=true" => same effect
    - install a instantclient11_2 basic and ODBC drivers (for 11.2.0.2) but I could not connect to the DB (I could find the new drivers in registry WoW64Node/ODBC Drivers, put the location in PATH in front of the other OraClient and replace the OraClient with the name in registry in conn string) => Specified driver could not be loaded due to system error 127.
    - tried to see the Marshal.GetLastWin32Error() => returns 0.
    Any ideas? :D
    Edited by: 917334 on Feb 27, 2012 12:57 PM

    The select clause that causes the problem is actually a select over a view. I replaced the select * from MYView with the actual select clause (with inner join) and the issue disappeared.
    Any ideas? :)
    Solution:
    Looks like the view was written using INNER JOIN stuff. I replaced the code from the view with a simple select like this (inner join free):
    select table1.col1, table2.col2, table3.col2, from table1, table2, table3 where table1.col1 = table2.col1 and table1.col1 = table3.col1
    Some questions still remain (even if my issue is partially solved):
    - why was it working on 10g?
    - why this particular view crashed? (there are other views that use inner join and don't cause this)
    - why was it working when using the full select (with inner join) and not working when selecting over the view?
    Edited by: 917334 on 28.02.2012 08:33

  • Attempted to read or write protected memory error

    Hello,
    I am using the .Net library and occasionally I get a System.AccessViolationException,"Attempted to read or write protected memory. This is often an indication that other memory is corrupt." Currently it is occurring when trying to initialize a TypedTPINIT object (this has happened in other places before and we just retry the request as a work-around). I set the size equal to the password length + 2 and the constructor for TypedTPINIT throws the exception after making the call to tpaloc. I have code that catches the exception and tries again up to 5 times before bubbling the exception up the chain. Once this exception occurs, no calls can be made to tux, they all throw the same exception. Once the application is closed and restarted (restarting the win32 process), everything works fine with the same data. It will work for a day or two and then fowl up again, seemingly at random. I am unable to reproduce the error at will, we just see it popup now and again, but closing the process and restarting it makes it go away for a while.
    Any idea why this exception is happening?
    I tried taking the .Net library out of the question and make the call to tpalloc myself using p/invoke and the same thing happens, but not every time.
    I appreciate any help you can provide.
    ~Jason

    Hi Jason,
    I would suggest using a memory access checking tool like bounds checker, electric fence, or the like, although I don't know what's available in a .NET environment.
    Regards,
    Todd Little
    Oracle Tuxedo Chief Architect

  • Attempted to read or write protected memory

    Imports Axzkemkeeper
    Imports zkemkeeper
    Public Class Form11
    Dim q As New Axzkemkeeper.AxCZKEM
    Dim con As Boolean = False
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    'Try
    ' q.CreateControl()
    ' con = q.Connect_Net("192.168.0.202", CInt(4370))
    ' If con Then
    ' MsgBox("yes")
    ' Else
    ' MsgBox("fuck!")
    ' End If
    'Catch ex As Exception
    ' MsgBox(ex.Message)
    'End Try
    q.CreateControl()
    'q.SkinAllThreads()
    con = q.Connect_Net("192.168.0.202", CInt(4370))
    If con Then
    MsgBox("yes")
    Else
    MsgBox("oh shoot!")
    End If
    End Sub
    End Class
    i try to connect biometric device from vb using axzkemkeeper.dll but i comes with error:
    An unhandled exception of type 'System.AccessViolationException' occurred in AxInterop.zkemkeeper.dll
    Additional information: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
    i really thanksful with any advice you give....
    best regards...
    Exception is:
    An unhandled exception of type 'System.AccessViolationException' occurred in AxInterop.zkemkeeper.dll  Additional information: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

    Please refrain from the profanity.
    The problem appears to be from inside Axzkemkeeper.AxCZKEM. Whatever that is... I am unable to help with the code you provided.
    “If you want something you've never had, you need to do something you've never done.”
    Don't forget to mark
    helpful posts and answers
    ! Answer an interesting question? Write a
    new article
    about it! My Articles
    *This post does not reflect the opinion of Microsoft, or its employees.

  • Attempted to read or write protected memory followed by Load Report Failed

    After running OK for some time ASP.NET web application (VS 2008 .NET 3.5 with Crystal Reports included) running on MS WIN 2003 R2, SP2) will throw error when trying to create PDF crystal report. Error reads as follow:
    Attempted to read or write protected memory. This is often an indication that other memory is corrupt. -    at CrystalDecisions.ReportAppServer.ClientDoc.ReportClientDocumentClass.Close()     at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.InternalClose(Boolean bSetupForNextReport, Boolean bAutoClose)     at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.Dispose(Boolean bDisposeManaged)     at System.ComponentModel.Component.Dispose()     at CrystalDecisions.CrystalReports.Engine.ReportDocument.InternalClose(Boolean bSetupForNextReport)     at CrystalDecisions.CrystalReports.Engine.ReportDocument.Close()
    After that every consecutive attempt to create another PDF crystal report will fail with fallowing error:
    Load report failed. -    at ... at System.Web.UI.WebControls.Button.OnClick(EventArgs e)     at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)     at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)     at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)     at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)     at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
    Once Application pool is recycled, error goes away but comes back after while. It seems that recently the uptime is getting shorter.
    Anyone had similar experience, posible solution?
    Thanks in advance,
    Miro

    Hi Miro,
    Clean Temp folder of that machine.
    For testing export report to PDF format from designer do you face any issue?
    Try to export the report with following line of code :
            CrystalDecisions.CrystalReports.Engine.ReportDocument boReportDocument;
            CrystalDecisions.ReportAppServer.ClientDoc.ISCDReportClientDocument reportClientDoc;
            boReportDocument = new CrystalDecisions.CrystalReports.Engine.ReportDocument();
            boReportDocument.Load(Server.MapPath("FinalActivityRpt.rpt"));
            reportClientDoc = boReportDocument.ReportClientDocument;
            boReportDocument.SetDatabaseLogon("sa", "sa");
            CrystalReportViewer1.ReportSource = boReportDocument;
            ExportOptions exportOptions = new ExportOptions();
            exportOptions.ExportFormatType = CrReportExportFormatEnum.crReportExportFormatPDF;
            PDFExportFormatOptions pdfOptions = new PDFExportFormatOptions();
            pdfOptions.StartPageNumber = 1;
            pdfOptions.EndPageNumber = 3;
            exportOptions.FormatOptions = pdfOptions;
            Response.AddHeader("Content-Disposition", "filename=" + "untiteled" + ".pdf");
            Response.ContentType = "application/pdf";
            Response.BinaryWrite((Byte[])reportClientDoc.ReportSource.Export(exportOptions, new         RequestContext()));
            Response.End();
    Regards,
    Shweta

  • Attempted to read or write protected memory, VS2008.

    Development Environment
    ===
    Windows XP (32bit)
    Visual Studio 2008 Pro; with Crystal Reports 2008 for Visual Studio
    TagetCPU: 'x86'
    VB.net 3.5
    Windows dll
    Crystal Reports Runtime SP3 (12.3.0.601)
    Deployment Environment
    ===
    Windows XP (32bit)
    .net3.5
    Crystal Reports Runtime SP3 (12.3.0.601)
    We have a dll that prints a batch of reports. There are only three different reports but each is repeatedly printed with different parameters. The first time each report is called it is loaded (myReport.Load) and each table location is set. (myTable.Location = "mydb.dbo.mytable")
    A few hundred of these can be printed every day. Approximately once a day we can get the following error:
    "Attempted to read or write protected memory. This is often an indication that other memory is corrupt."
    This only happens on the deployment machine. It might be hard to run the Process Manager on the deployment machine as this error varies the time it occurs and seems quite intermittent.
    Once all the reports have printed we call a '.close' and '.dispose' on each report.
    This error was also happening when we had the runtime 12.0.(SP1).
    The error seems to happen mostly at:
    myReportDocument.PrintToPrinter(1, False, 0, 0)

    Hello Simon
    A few suggestions.
    Get SP4:
    SP4     
    https://smpdl.sap-ag.de/~sapidp/012002523100008782452011E/cr2008sp4.exe
    SP4 MSI     
    https://smpdl.sap-ag.de/~sapidp/012002523100008782532011E/cr2008sp4_redist.zip
    SP4 MSM     
    https://smpdl.sap-ag.de/~sapidp/012002523100008782522011E/cr2008sp4_mm.zip
    See if there are any updates for the printer driver.
    Try a different printer driver.
    See if there are updates for the DB client (e.g.; it may actaully be the DB client eating up the memory).
    Check the Event Log for any warnings \ errors.
    Ludek
    Follow us on Twitter http://twitter.com/SAPCRNetSup
    Got Enhancement ideas? Try the [SAP Idea Place|https://ideas.sap.com/community/products_and_solutions/crystalreports]

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