Bug #41457 System.AccessViolationException: Attempted to read or write protected memory.
Submitted: 14 Dec 2008 21:00 Modified: 15 Jan 2009 8:44
Reporter: Patricio Calderon Email Updates:
Status: No Feedback Impact on me:
None 
Category:MySQL Workbench Severity:S1 (Critical)
Version:5.0.29 OS:Windows (Vista)
Assigned to: CPU Architecture:Any
Tags: Access Violation - no RTTI data!

[14 Dec 2008 21:00] Patricio Calderon
Description:
opened last file used and when clicked in blank canvas area (diagram tab), received error message.  Unable then to work, the tab with the error message would not open.  Then I would click on another diagram tab, would receive same error message and tab would become unavailable.  But, the prior unavailable tab would become available by clicking on it.  However, once I click on that tab, it would once again become unavailable, but the other tab would be clickable again. It become this loop, where one tab was working while the other was not, and vice-versa.  Message below is what I receive:

error messabe: "Access violation - no RTTI data!"

See the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
   at wb.WBContextUI.get_layer_tree(WBContextUI* , basic_string<char\,std::char_traits<char>\,std::allocator<char> >* )
   at MySQL.Workbench.WbContext.get_layer_tree(String path)
   at MySQL.GUI.Workbench.ModelLayerForm.SetViewTreePath(String path)
   at MySQL.GUI.Workbench.MainForm.mainDockPanel_ActiveDocumentChanged(Object sender, EventArgs e)
   at WeifenLuo.WinFormsUI.Docking.DockPanel.OnActiveDocumentChanged(EventArgs e)
   at WeifenLuo.WinFormsUI.Docking.DockPanel.FocusManagerImpl.RefreshActiveWindow()
   at WeifenLuo.WinFormsUI.Docking.DockPanel.FocusManagerImpl.HookEventHandler(Object sender, HookEventArgs e)
   at WeifenLuo.WinFormsUI.Docking.DockPanel.FocusManagerImpl.LocalWindowsHook.OnHookInvoked(HookEventArgs e)
   at WeifenLuo.WinFormsUI.Docking.DockPanel.FocusManagerImpl.LocalWindowsHook.CoreHookProc(Int32 code, IntPtr wParam, IntPtr lParam)
   at WeifenLuo.WinFormsUI.Docking.NativeMethods.CallNextHookEx(IntPtr hhook, Int32 code, IntPtr wParam, IntPtr lParam)
   at WeifenLuo.WinFormsUI.Docking.DockPanel.FocusManagerImpl.LocalWindowsHook.CoreHookProc(Int32 code, IntPtr wParam, IntPtr lParam)
   at WeifenLuo.WinFormsUI.Docking.NativeMethods.CallNextHookEx(IntPtr hhook, Int32 code, IntPtr wParam, IntPtr lParam)
   at WeifenLuo.WinFormsUI.Docking.DockPanel.FocusManagerImpl.LocalWindowsHook.CoreHookProc(Int32 code, IntPtr wParam, IntPtr lParam)
   at WeifenLuo.WinFormsUI.Docking.NativeMethods.CallNextHookEx(IntPtr hhook, Int32 code, IntPtr wParam, IntPtr lParam)
   at WeifenLuo.WinFormsUI.Docking.DockPanel.FocusManagerImpl.LocalWindowsHook.CoreHookProc(Int32 code, IntPtr wParam, IntPtr lParam)
   at System.Windows.Forms.UnsafeNativeMethods.SetFocus(HandleRef hWnd)
   at System.Windows.Forms.ContainerControl.FocusActiveControlInternal()
   at System.Windows.Forms.ContainerControl.SetActiveControlInternal(Control value)
   at System.Windows.Forms.ContainerControl.SetActiveControl(Control ctl)
   at System.Windows.Forms.ContainerControl.set_ActiveControl(Control value)
   at System.Windows.Forms.Form.SelectInternal(Boolean directed, Boolean forward)
   at System.Windows.Forms.Form.Select(Boolean directed, Boolean forward)
   at System.Windows.Forms.Control.SelectNextControl(Control ctl, Boolean forward, Boolean tabStopOnly, Boolean nested, Boolean wrap)
   at System.Windows.Forms.Control.SelectNextControlInternal(Control ctl, Boolean forward, Boolean tabStopOnly, Boolean nested, Boolean wrap)
   at System.Windows.Forms.Control.SelectNextIfFocused()
   at System.Windows.Forms.Control.SetVisibleCore(Boolean value)
   at System.Windows.Forms.Form.SetVisibleCore(Boolean value)
   at System.Windows.Forms.Control.set_Visible(Boolean value)
   at WeifenLuo.WinFormsUI.Docking.DockContentHandler.SetVisible()
   at WeifenLuo.WinFormsUI.Docking.DockPane.set_ActiveContent(IDockContent value)
   at WeifenLuo.WinFormsUI.Docking.DockPaneStripBase.OnMouseDown(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at WeifenLuo.WinFormsUI.Docking.DockPaneStripBase.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

************** Loaded Assemblies **************
mscorlib
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.1434 (REDBITS.050727-1400)
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
----------------------------------------
MySQLWorkbench
    Assembly Version: 5.0.29.3359
    Win32 Version: 5.0.29.3359
    CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Workbench%205.0%20SE/MySQLWorkbench.exe
----------------------------------------
wb.wr
    Assembly Version: 0.0.0.0
    Win32 Version: 
    CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Workbench%205.0%20SE/wb.wr.DLL
----------------------------------------
grt.wr
    Assembly Version: 0.0.0.0
    Win32 Version: 
    CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Workbench%205.0%20SE/grt.wr.DLL
----------------------------------------
System.Windows.Forms
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.1434 (REDBITS.050727-1400)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.1434 (REDBITS.050727-1400)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
    Assembly Version: 2.0.0.0
    Win32 Version: 2.0.50727.1434 (REDBITS.050727-1400)
    CodeBase: file:///C:/Windows/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
MySQLCsUtilities
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Workbench%205.0%20SE/MySQLCsUtilities.DLL
----------------------------------------
msvcm80
    Assembly Version: 8.0.50727.1434
    Win32 Version: 8.00.50727.1434
    CodeBase: file:///C:/Windows/WinSxS/x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.1434_none_d08b6002442c891f/msvcm80.dll
----------------------------------------
MySQLGrtShell
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Workbench%205.0%20SE/MySQLGrtShell.EXE
----------------------------------------
WeifenLuo.WinFormsUI.Docking
    Assembly Version: 2.2.3267.28412
    Win32 Version: 2.2.0.0
    CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Workbench%205.0%20SE/WeifenLuo.WinFormsUI.Docking.DLL
----------------------------------------
MySQLWorkbenchEditors
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Workbench%205.0%20SE/MySQLWorkbenchEditors.DLL
----------------------------------------
Aga.Controls
    Assembly Version: 1.6.0.0
    Win32 Version: 1.6.0.0
    CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Workbench%205.0%20SE/Aga.Controls.DLL
----------------------------------------
grt.helpers.be
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Program%20Files/MySQL/MySQL%20Workbench%205.0%20SE/grt.helpers.be.DLL
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

How to repeat:
open a workbench file containing a db design in progress. once opened, click in one of the EER diagrams.  make sure there are more than one diagram tab.  alternate clicking on the tabs, back and forth, and then the error message will appear.
[15 Dec 2008 8:44] Susanne Ebrecht
Many thanks for writing a bug report.

I can't repeat this behaviour.

Please, would you add a screenshot here.

Also I need exactly the steps you did after starting Workbench and how you start Workbench.
[16 Jan 2009 0:00] Bugs System
No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".