Mremoteng: Crash with VNC tab open

[milanraf]

HW platform: Fujitsu S935 - 12GB - 500GBHD
Operating system - Windows 7 x64 Pro
.NET version 4.6.1
mRemoteNG version 1.74.6023.15437

App crashes while VNC connection tab is open, redirected thru SSH connection to KVM virtual host.
SSH connection is in tab aswell.

Very random appearance, unable to reproduce it.

Error trace

Le informazioni su come richiamare il debug JIT (Just-In-Time) anziché questa finestra
sono riportate in fondo al messaggio.

*** Testo dell'eccezione ***
System.NotImplementedException: RemoteDesktop in unknown State: Disconnecting.
in VncSharp.RemoteDesktop.OnPaint(PaintEventArgs pe)
in System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
in System.Windows.Forms.Control.WmPaint(Message& m)
in System.Windows.Forms.Control.WndProc(Message& m)
in System.Windows.Forms.ScrollableControl.WndProc(Message& m)
in VncSharp.RemoteDesktop.WndProc(Message& m)
in System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
in System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
in System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

*** Assembly caricati ***
mscorlib
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll

mRemoteNG
Versione assembly: 1.74.6023.15437
Versione Win32: 1.74.6023.15437

Base di codice: file:///C:/Program%20Files%20(x86)/mRemoteNG/mRemoteNG.exe

System
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll

System.Configuration
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll

System.Core
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll

System.Drawing
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll

System.Windows.Forms
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll

System.Xml
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll

log4net
Versione assembly: 1.2.15.0
Versione Win32: 1.2.15.0

Base di codice: file:///C:/Program%20Files%20(x86)/mRemoteNG/log4net.DLL

System.Management
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Management/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Management.dll

WeifenLuo.WinFormsUI.Docking
Versione assembly: 2.9.0.0
Versione Win32: 2.9.0.0

Base di codice: file:///C:/Program%20Files%20(x86)/mRemoteNG/WeifenLuo.WinFormsUI.Docking.DLL

WeifenLuo.WinFormsUI.Docking.ThemeVS2012Light
Versione assembly: 2.9.0.0
Versione Win32: 2.9.0.0

Base di codice: file:///C:/Program%20Files%20(x86)/mRemoteNG/WeifenLuo.WinFormsUI.Docking.ThemeVS2012Light.DLL

mRemoteNG.resources
Versione assembly: 1.74.6023.15437
Versione Win32: 1.74.6023.15437

Base di codice: file:///C:/Program%20Files%20(x86)/mRemoteNG/it/mRemoteNG.resources.DLL

System.Windows.Forms.resources
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms.resources/v4.0_4.0.0.0_it_b77a5c561934e089/System.Windows.Forms.resources.dll

MagicLibrary
Versione assembly: 1.7.4.0
Versione Win32: 1.7.4.0

Base di codice: file:///C:/Program%20Files%20(x86)/mRemoteNG/MagicLibrary.DLL

WindowsBase
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/WindowsBase/v4.0_4.0.0.0__31bf3856ad364e35/WindowsBase.dll

mscorlib.resources
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/mscorlib.resources/v4.0_4.0.0.0_it_b77a5c561934e089/mscorlib.resources.dll

System.Web
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Web/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Web.dll

System.resources
Versione assembly: 4.0.0.0
Versione Win32: 4.6.1055.0 built by: NETFXREL2

Base di codice: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.resources/v4.0_4.0.0.0_it_b77a5c561934e089/System.resources.dll

VncSharpNG
Versione assembly: 1.3.4896.25007
Versione Win32: 1.3.4896.25007

Base di codice: file:///C:/Program%20Files%20(x86)/mRemoteNG/VncSharpNG.DLL

AxInterop.MSTSCLib
Versione assembly: 1.0.0.0
Versione Win32: 1.0.0.0

Base di codice: file:///C:/Program%20Files%20(x86)/mRemoteNG/AxInterop.MSTSCLib.DLL

Interop.MSTSCLib
Versione assembly: 1.0.0.0
Versione Win32: 1.0.0.0

Base di codice: file:///C:/Program%20Files%20(x86)/mRemoteNG/Interop.MSTSCLib.DLL

*** Debug JIT ***
Per abilitare il debug JIT, è necessario impostare il valore
jitDebugging nella sezione system.windows.forms del file di configurazione
dell'applicazione o del computer (machine.config).
L'applicazione inoltre deve essere compilata con il debug
abilitato.

Ad esempio:

Quando il debug JIT è abilitato, tutte le eccezioni non gestite
vengono inviate al debugger JIT registrato nel computer,
anziché essere gestite da questa finestra di dialogo.

[kmscode]

Please see the troubleshooting and logging page and provide the information (logs and dumps) as noted.

[kmscode]

Give this one a whirl...

Code can be viewed here: https://github.com/mRemoteNG/VncSharp/commit/2b94fe6a635e52cd1d6628314b905d146a99756a
VncSharp.zip

[kmscode]

@milanraf - any chance to test that binary? Did this resolve the problem?

[milanraf]

Downloaded VncSharp.zip
Unzipped VncSharp.dll in C:\Program Files (x86)\mRemoteNG
Renamed VncSharpNG.dll to VncSharpNG_OLD.dll
Renamed VncSharp.dll to VncSharpNG.dll
Assembly does not load:
ERROR- Opening connection failed!
Could not load file or assembly 'VncSharpNG, Version=1.3.4896.25007, Culture=neutral, PublicKeyToken=61974755c7bfea7c' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

Hope I've done it right....

[kmscode]

@milanraf

Sorry... VncSharpNG was replaced with the standard "upstream" VncSharp library - trying to continue to contribute to other used Open Source projects where we can. This was done after the 1.74 release. So you'll need the latest 1.75 Alpha 3 in order to test that binary. They have been quite stable. Maybe try with the portable version so you don't impact your current installation?

[kmscode]

@milanraf

Are you able to try to test this in the current beta?

You can test this by running the portable version. Be sure to COPY your current confCons.xml into the extracted beta 1 portable directory, then replace the vncsharp.dll that I previously attached.

If you can validate this, then I can get the fix into beta 2.

[milanraf]

Tested with 1.75.6068.25511 with similar results.

I'm now almost able to reproduce the crash.
When VNC server crashes or is terminated, most of times VNC client in mRemote hangs pushing mRemote to crash.
More rarely a VNC server crash/kill just makes connection drop with no immediate effects but mRemote could crash within 1 hour.
Log file is always 0 bytes...

[kmscode]

@milanraf Sorry for the delay on this...

Are you able to test this with the latest 1.75 beta 3 and the previously provided vncsharp.dll? If you are still expierening crashes with that combination, could you please provide me with the stack trace from the error/crash/event log message?

Thanks.

[kmscode]

This requires further testing and validation. Not included in 1.75. Re-targeting for 1.76.

[milanraf]

Sorry, it is not clear whether I should test it with current beta or wait for 1.76.

[kmscode]

Fixed in commit d5d4fdefc8f7fa3be84afd3e2956f22f455c6358

Will be included in 1.76