Application Crashes With Internal Error In The NET Runtime

Question

We have an application written against  NET 4 0 which over the weekend crashed  putting the following message into the event log      Application  PnrRetrieverService exe   Framework Version  v4 0 30319   Description  The process was terminated due to an internal error in   the  NET Runtime at IP 791F9AAA  79140000  with exit code 80131506    This is on a Windows Server 2003 R2 Standard Edition box   Googling this error hasn t turned up anything pertinent   For example  this isn t occurring in VS Studio  but instead on a production box  when the service was eventually restarted  it experienced no further problems   How does one go about diagnosing a bug in the  NET Runtime

User · Answer

In my case this error occured when logging in SAP Business One 9.1 application. In Windows events I could find also another error event in addition to the one reported by the OP:

Nome dell'applicazione che ha generato l'errore: SAP Business One.exe, versione: 9.10.160.0, timestamp: 0x551ad316
Nome del modulo che ha generato l'errore: clr.dll, versione: 4.0.30319.34014, timestamp: 0x52e0b784
Codice eccezione: 0xc0000005
Offset errore 0x00029f55
ID processo che ha generato l'errore: 0x1d7c
Ora di avvio dell'applicazione che ha generato l'errore: 0x01d0e6f4fa626e78
Percorso dell'applicazione che ha generato l'errore: C:\Program Files (x86)\SAP\SAP Business One\SAP Business One.exe
Percorso del modulo che ha generato l'errore: C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
ID segnalazione: 3fd8e0e7-52e8-11e5-827f-74d435a9d02c
Nome completo pacchetto che ha generato l'errore: 
ID applicazione relativo al pacchetto che ha generato l'errore:

The machine run Windows 8.1, with .NET Framework 4.0 installed and without the 4.5 version. As it seemed from the internet that it could be also a bug in .NET 4, I tried installing .NET Framework 4.5.2 and I solved the issue.

User · Answer

Framework Version  v4 0 30319  Description  The process was terminated due to an unhandled exception   Exception Info  System Reflection TargetInvocationException  I have faced this Error  Application was working fine on some PCs and on some PCs giving the above error  I uninstall the Framework 4 5 and re-install this resolved my problem   Cheer

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I never figured out why this was happening for me  It was consistently reproducible for one of my applications  but went away after simply rebooting   I am running Windows 2004 Build 19582 1001  Insider Preview  with  net-4 8 and I also would not be surprised if this were due to something like a hardware memory error  Also  my application does load some unmanaged code and initialize it  so I can   t prove that the crash didn   t come from that

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In my case the problem was a C   CLI library in which there was a call to the NtQuerySystemInformation  for some kind of reason sometimes  and under mysterious circumstances   when it was called the CLR heap got corrupted and the application crashed   I ve resolved the problem using a  custom heap  created with HeapCreate and allocating there the buffers used by that function

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In my case the problem was related  to  Referencing  NET standard library in classic asp net projects  and these two issues  https   github com dotnet standard issues 873  https   github com App-vNext Polly issues 628  and downgrading to Polly v6 was enough to workaround it

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A bug in the concurrent implementation of the Garbage Collection on x64  Net 4 can cause this as stated in the following microsoft KB entry   ExecutionEngineException occurs during Garbage Collection   You should first make a deep minidump exploration to be sure that the problem occured during a Garbage collection   The minidump location can usually be found in a Windows Error Reporting entry in the event log following the crash entry  Then  have fun with WinDbg    The latest documentation on the use of the  lt gcConcurrent  gt  configuration element  to disable concurrent or  in  NET 4 and later  background garbage collection  can be found here

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For those arriving here from google  I ve eventually come across this SO question  and this specific answer solved my problem  I ve contacted Microsoft for the hotfix through the live chat on support microsoft com and they sent me a link to the hotfix by email

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In my case this exception was occured when disk space was over and  NET can t allocate memory in Windows Virtual Memory   In event log I saw this error   Application popup  Windows - Virtual Memory Minimum Too Low   Your system is low on virtual memory  Windows is increasing the size of your virtual memory paging file  During this process  memory requests for some applications may be denied   And previous error   The C  disk is at or near capacity   You may need to delete some files

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After years of wrestling with this issue in a number of applications  it appears that Microsoft has finally accepted it as a bug in  NET 4 CLR that causes this to occur  http   support microsoft com kb 2640103   I had previously been  fixing  it by forcing the garbage collector to run in server mode  gcServer enabled  true  in app config  as described in the Microsoft article linked to by Think Before Coding  This in essence forces all threads in the application to pause during the collection removing the possibility of other threads accessing the memory being manipulated by the GC  I am happy to find that my years of searching in vain for a  bug  in my code or other 3rd party unmanaged libraries were only fruitless because the bug lay in Microsoft s code  not mine

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I ve experienced  internal errors  in the  NET runtime that turned out to be caused by bugs in my code  don t think that just because it was an  internal error  in the  NET runtime that there isn t a bug in your code as the root cause  Always always always blame your own code before you blame someone else s   Hopefully you have logging and exception stack trace information to point you where to start looking  or that you can repeat the state of the system before the crash

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This might be an exception occurring in the finalizer  If you are doing the Pattern of  Class    Dispose false     check what are you disposing as an un-managed resource  Just put a try  catch there and you should be fine   We found the issue as we had this mysterious failure with no logs We did the usual recommended pattern of using a  void Dispose bool disposing     Looking at the answers on this question about the finalizer we found a possible place where the Disposal of the unmanaged resources could throw an exception   It turns out somewhere we did not dispose the object properly thus the finalizer took over the diposal of unmanaged resources thus behold an exception occurred    In this case was using the Kafka Rest API to clean up the client from Kafka  Seems that it did threw exception at some point then this issue occurred

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Could be a bug with concurrent GC http   support microsoft com kb 2679415

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I am not sure it may help everyone  but I could get around this by running   devenv exe  ResetSettings       in the path  Visual Studio root  Common7 Ide  I had the following errors in the event log and VS was just crashing and restarting all the time   Faulting application name  devenv exe  version  14 0 25123 0  time stamp  0x56f22f32 Faulting module name  clr dll  version  4 7 2115 0  time stamp  0x59af88f2 Exception code  0xc0000005 Fault offset  0x0015f90e Faulting process id  0x3a7c Faulting application start time  0x01d353463eaf0c36 Faulting application path  C  Program Files  x86  Microsoft Visual Studio 14 0 Common7 IDE devenv exe Faulting module path  C  Windows Microsoft NET Framework v4 0 30319 clr dll Report Id  a232f984-6e80-4f61-9003-e18a035c8f93 Faulting package full name   Faulting package-relative application ID

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Every 5-10 minutes my application pool kept crashing with this exit code  I do not want to ruin your trust of the Garbage Collector  but the following solution worked for me   I added a Job that calls GC GetTotalMemory true  every minute   I suppose that  for some reason  the GC is not automatically inspecting the memory often enough for the high number of disposable objects that I use

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Had the same exact error on WinXP box with latest build of my  NET 4 code   Checked previous builds - now they crash too   Ok  so it s not me      No suggestions here above helped   Much more recent  2018-05-09  report of the same problem  Application Crash with exit code 80131506      A  We were receiving a similar error  but we believe ours was caused by the Citrix memory optimizer    The resolution was to force a regeneration of the  Net core libraries on the host s  where the issue was occurring    C  Windows Microsoft NET Framework64 v4 0 30319 ngen exe update  force   Root cause is still unknown  machine is not being updated and has little use   but that did it for me

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In my case the issue was due to duplicate binding redirects in my web config  More info here   I assume it was because of NuGet modifying the binding redirects  but for example it was looking like this      lt dependentAssembly gt       lt assemblyIdentity name  Lucene Net  publicKeyToken  85089178b9ac3181   gt       lt bindingRedirect oldVersion  0 0 0 0-2 9 4 0  newVersion  3 0 3 0   gt     lt  dependentAssembly gt     lt dependentAssembly gt       lt assemblyIdentity name  Newtonsoft Json  publicKeyToken  30ad4fe6b2a6aeed   gt       lt bindingRedirect oldVersion  0 0 0 0-11 0 0 0  newVersion  11 0 0 0   gt     lt  dependentAssembly gt     lt dependentAssembly gt       lt assemblyIdentity name  System Net Http  publicKeyToken  b03f5f7f11d50a3a  culture  neutral   gt       lt bindingRedirect oldVersion  0 0 0 0-4 2 0 0  newVersion  4 0 0 0   gt     lt  dependentAssembly gt     lt dependentAssembly gt       lt assemblyIdentity name  Lucene Net  publicKeyToken  85089178b9ac3181   gt       lt bindingRedirect oldVersion  0 0 0 0-2 9 4 0  newVersion  3 0 3 0   gt     lt  dependentAssembly gt     lt dependentAssembly gt       lt assemblyIdentity name  Newtonsoft Json  publicKeyToken  30ad4fe6b2a6aeed   gt       lt bindingRedirect oldVersion  0 0 0 0-11 0 0 0  newVersion  11 0 0 0   gt     lt  dependentAssembly gt     lt dependentAssembly gt       lt assemblyIdentity name  System Net Http  publicKeyToken  b03f5f7f11d50a3a  culture  neutral   gt       lt bindingRedirect oldVersion  0 0 0 0-4 2 0 0  newVersion  4 0 0 0   gt     lt  dependentAssembly gt    Removing all the duplicates solved the problem

User · Answer

with exit code 80131506   That s a nasty one  ExecutionEngineException   Starting with  NET 4 0  this exception immediately terminates the program   The generic cause is corruption of the state of the garbage collected heap   Which in turn is invariably caused by unmanaged code   The exact location in code at which this exception is raised isn t helpful  the corruption usually occurred well before the damage is detected   Finding the exact cause for this is going to be difficult   Review any unmanaged code your service might be using   Suspect environmental problems if there is no obvious candidate  misbehaving malware scanners are notorious   If it repeats very poorly then suspect hardware problems like soft RAM errors

[.net] Application Crashes With "Internal Error In The .NET Runtime"

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