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Rank: Member
Groups: Member
Joined: 5/6/2015
Posts: 25
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Hi, your DLL crashes our application. It's running as a service. Yesterday, and whole last week, it runs well, now it crashed every 10-20 min on our production server. Reboot and switching to latest build doesn't help
Code: Visual Basic.NET
Application: XXX
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.NullReferenceException
Stack:
at EO.Internal.z.a(e ByRef, IntPtr, UInt32, UInt32)
at EO.Internal.z.a(Int32, e ByRef)
at EO.Internal.z.a(Int32)
at EO.Base.ThreadRunnerBase.d()
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Threading.ThreadHelper.ThreadStart()
here are the routine where i call your functions
Code: Visual Basic.NET
Private Function FU_GenerateBase64(trans_html As String, trans_width As Integer, trans_height As Integer) As String
FU_GenerateBase64 = ""
Try
Dim loc_stopwatch As New Stopwatch
Dim Loc_MD5 As New Security.Cryptography.MD5CryptoServiceProvider
Dim Loc_Bytes() As Byte = System.Text.UTF8Encoding.UTF8.GetBytes(trans_html & trans_width & trans_height)
Dim Loc_Key As String = Replace(VAR_Global.FU_MakeHEX(Loc_MD5.ComputeHash(Loc_Bytes)), " ", "")
Dim Loc_TimeOut As Boolean = False
If Cloc_RenderCache.ContainsKey(Loc_Key) = False Then
SU_Log(ENU_Log.VollDebug, "Render GXT Start;Width:" & trans_width & ";Height:" & trans_height & ";HTML:" & trans_html & ";Key:" & Loc_Key)
loc_stopwatch.Start()
Cloc_WebView.Resize(trans_width, trans_height)
Cloc_threadRunner.Send(Sub()
If Cloc_WebView.LoadHtml(trans_html).WaitOne(3000) = True Then
System.Threading.Thread.Sleep(50)
Using Loc_Image As Drawing.Image = Cloc_WebView.Capture(True)
Using Loc_Bitmap As New Bitmap(Loc_Image)
Using ms As New IO.MemoryStream()
Loc_Bitmap.MakeTransparent(Drawing.Color.White)
Loc_Bitmap.Save(ms, Drawing.Imaging.ImageFormat.Png)
ms.Position = 0
FU_GenerateBase64 = System.Convert.ToBase64String(ms.ToArray)
End Using
End Using
End Using
Else
SU_Log(ENU_Log.Fehler, "Render GXT Timeout 3000 ms; HTML=" & trans_html)
Loc_TimeOut = True
End If
End Sub)
loc_stopwatch.Stop()
' only for caching
If Loc_TimeOut = False Then
Cloc_RenderCache.Add(Loc_Key, FU_GenerateBase64)
If Cloc_RenderCache.Keys.Count > 10 Then Cloc_RenderCache.Remove(Cloc_RenderCache.Keys(0))
SU_Log(ENU_Log.VollDebug, "Render GXT ENDE Time:" & loc_stopwatch.ElapsedMilliseconds & "ms")
End If
Else
SU_Log(ENU_Log.VollDebug, "Render GXT CACHE;Key:" & Loc_Key)
FU_GenerateBase64 = Cloc_RenderCache(Loc_Key)
End If
Catch ex As Exception
SU_Log(ENU_Log.Fehler, ex.ToString)
End Try
End Function
outside only this
Code: Visual Basic.NET
Private Cloc_threadRunner As New EO.WebBrowser.ThreadRunner()
Private WithEvents Cloc_WebView As New EO.WebBrowser.WebView
Private Cloc_RenderCache As New Dictionary(Of String, String)
Public Sub New()
EO.WebBrowser.Runtime.AddLicense( _
XXX
Cloc_WebView = Cloc_threadRunner.CreateWebView
End Sub
without looking in your sources i don't know why this error occurs
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,229
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Hi, We can't tell exactly what it is just be looking at the code. Can you isolate the problem into a test app and send the test app to us? You can find more instructions on how to send test app to us here: http://www.essentialobjects.com/forum/test_project.aspxThanks!
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Rank: Member
Groups: Member
Joined: 5/6/2015
Posts: 25
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Sorry,
at the moment i could not isolate the problem in an standalone application. It crashed in customer environment not on my test machines.
The colleagues have installed dotnet 4.5 just for testing and at the moment it doen't crash.
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,229
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Hi,
Unfortunately we can't do much before we can reproduce it and see exactly what it is. So please try to reproduce it.
Thanks!
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Rank: Member
Groups: Member
Joined: 5/6/2015
Posts: 25
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Sorry, thats not possible. It has crashed only in customer enviroment. And at the moment it runs. Don't know why the install of the dotnet 4.5 help, but it's running.
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,229
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Hi, Please let us know if you see it occuring again. Make sure you capture the stack trace as well as log information. You can find more information on how to capture the log information here: http://www.essentialobjects.com/doc/common/collect_logs.aspxOnce you have those information, you can email them to us. See here for our email address: http://www.essentialobjects.com/forum/test_project.aspxOnce we have those, we will take a look and see what we can find. Thanks!
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Rank: Member
Groups: Member
Joined: 5/6/2015
Posts: 25
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yes it occurs, only once 1-2 days. I will try to get more log information.
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Rank: Member
Groups: Member
Joined: 5/6/2015
Posts: 25
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Hi, at the moment i don't have more log but i've another issue about this. The EO Dll starts a Child with rundl32 for each seperate thread i have. Thats ok. But the memory Usage not. Here is a Screenshot. For explanation what i have done. It shows the memory usage with Process Explorer. My Application "E3_Framework.exe" starts some threads, each one with its own EO.Webbrowser & EO.Threadrunner object and each renders with following code (Changed to my old one cause the threadrunner call has no more call without timeout)
Code: Visual Basic.NET
Private Function FU_GenerateBase64(trans_html As String, trans_width As Integer, trans_height As Integer) As String
FU_GenerateBase64 = ""
Try
Dim loc_stopwatch As New Stopwatch
Dim Loc_MD5 As New Security.Cryptography.MD5CryptoServiceProvider
Dim Loc_Bytes() As Byte = System.Text.UTF8Encoding.UTF8.GetBytes(trans_html & trans_width & trans_height)
Dim Loc_Key As String = Replace(VAR_Global.FU_MakeHEX(Loc_MD5.ComputeHash(Loc_Bytes)), " ", "")
Dim Loc_TimeOut As Boolean = False
If Cloc_RenderCache.ContainsKey(Loc_Key) = False Then
SU_Log(ENU_Log.VollDebug, "Render GXT Start;Width:" & trans_width & ";Height:" & trans_height & ";HTML:" & trans_html & ";Key:" & Loc_Key)
loc_stopwatch.Start()
Cloc_WebView.Resize(trans_width, trans_height)
If Cloc_threadRunner.Send(Sub()
Try
If Cloc_WebView.LoadHtml(trans_html).WaitOne = True Then
System.Threading.Thread.Sleep(50)
Using Loc_Image As Drawing.Image = Cloc_WebView.Capture(True)
Using Loc_Bitmap As New Bitmap(Loc_Image)
Using ms As New IO.MemoryStream()
Loc_Bitmap.MakeTransparent(Drawing.Color.White)
Loc_Bitmap.Save(ms, Drawing.Imaging.ImageFormat.Png)
ms.Position = 0
FU_GenerateBase64 = System.Convert.ToBase64String(ms.ToArray)
End Using
End Using
End Using
Else
SU_Log(ENU_Log.Fehler, "Render GXT LoadHtml; HTML=" & trans_html)
Loc_TimeOut = True
End If
Catch ex As Exception
Loc_TimeOut = True
SU_Log(ENU_Log.Fehler, "Render GXT ERROR=" & ex.ToString & "; HTML=" & trans_html)
End Try
End Sub, 3000) = True Then
SU_Log(ENU_Log.Fehler, "Render GXT ThreadRunner Timeout; 3000 ms; HTML=" & trans_html)
Loc_TimeOut = True
End If
loc_stopwatch.Stop()
' Damit nur 10 gespeichert werden
If Loc_TimeOut = False Then
Cloc_RenderCache.Add(Loc_Key, FU_GenerateBase64)
If Cloc_RenderCache.Keys.Count > 10 Then Cloc_RenderCache.Remove(Cloc_RenderCache.Keys(0))
SU_Log(ENU_Log.VollDebug, "Render GXT ENDE Time:" & loc_stopwatch.ElapsedMilliseconds & "ms")
End If
Else
SU_Log(ENU_Log.VollDebug, "Render GXT CACHE;Key:" & Loc_Key)
FU_GenerateBase64 = Cloc_RenderCache(Loc_Key)
End If
Catch ex As Exception
SU_Log(ENU_Log.Fehler, ex.ToString)
End Try
End Function
I have manualy started rendering in a loop. With the last one i made a clear log with the Process Explorer. I started about every 1 second 3 objects to render. In a loop so the content is evertime the same. I've tried this ca. one minute and the memory usage goes up and never goes down. Even after 30 min no change. On customer Machine there are more rundll32.exe entrys than Threads i have created and many of them goes > 500mb (Machine crashed cause to much memory usage). Looks like there is an leak. I've tested with EO.Total 2015.2.37.0 on customer Machine runs EO.Total 2015.2.10.0 but has the same problems.
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,229
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Hi, It's normal that you have more rundll32.exe than the number of threads you have. Chrome uses multiple processes for different purposes. For example, it uses a dedicated process for GPU. We are not aware of any memory leak in the latest build. If you suspect a memory leak, you can try to isolate the problem into a test project and send us the test project. Once we have that we will be happy to investigate further. See here for instructions on how to send test code to us: http://www.essentialobjects.com/forum/test_project.aspxBuild 2015.2.37.0 does handle memory better than earlier 2015 builds. So you might want to stay on that build. Thanks!
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Rank: Member
Groups: Member
Joined: 5/6/2015
Posts: 25
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Hi,
it looks its stable and goes between 200mb and 450mb regardles and for each thread i have one extra rundll thread. I've forgotten the disposing after i closed my thread.
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