Roslyn: RoslynCodeAnalysisService32.exe OutOfMemoryException after updating VS2017 to v15.3

Created on 17 Aug 2017 · 34Comments · Source: dotnet/roslyn

Visual Studio 2017 (15.3.0)

When working on a relatively large solution (~120 C# projects, with one large ASP.NET app), RoslynCodeAnalysisService32.exe crashes at seemingly random times after searching for references of a class. Visual Studio then shows a yellow bar with a message: "Unfortunately, a process used by Visual Studio has encountered an unrecoverable error. We recommend saving your work, and then closing and restarting Visual Studio".

This hasn't happened before the 15.3 update.

The Event Log entry looks like this:

Application: ServiceHub.RoslynCodeAnalysisService32.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.OutOfMemoryException
   at System.Threading.Tasks.TaskExceptionHolder.AddFaultException(System.Object)
   at System.Threading.Tasks.TaskExceptionHolder.Add(System.Object, Boolean)
   at System.Threading.Tasks.Task.AddException(System.Object, Boolean)
   at System.Threading.Tasks.Task`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetException(System.Object)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetException(System.Exception)
   at Microsoft.CodeAnalysis.FindSymbols.FindReferencesSearchEngine+<ProcessProjectAsync>d__25.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.AwaitTaskContinuation+<>c.<ThrowAsyncIfNecessary>b__18_0(System.Object)
   at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()

Area-IDE Bug Tenet-Reliability

Source

jjanuszkiewicz

👍4

Most helpful comment

we internally uses SQLite and we had some issue where we cause it to consume a lot of memory causing OOM. the PR is about fixing that problem.

heejaechang on 13 Oct 2017

👍2

All 34 comments

I also reported a possibly related OOM crash in devenv.exe here: https://developercommunity.visualstudio.com/content/problem/95826/vs2017-153-outofmemoryexception.html.

jjanuszkiewicz on 17 Aug 2017

Tagging @mavasani and @CyrusNajmabadi.

@jjanuszkiewicz can you go to Tools\Options\Text Editor\C#\Advanced and see if the option to use a different process is checked, and if it is uncheck it and see if that helps?

Pilchie on 17 Aug 2017

Do you mean this option? It's unchecked, I haven't touched it yet. Do you want me to try with this option enabled?

jjanuszkiewicz on 21 Aug 2017

Yes, that's the one I was wondering if you did have it checked, and something about the new analysis we were doing there was triggering the OOM.

Pilchie on 21 Aug 2017

@Pilchie I enabled this option - I still get the yellow bar of death:

but it looks differently in Event Log - I get a number of events similar to this:

Fault bucket 127990780820, type 5
Event Name: VisualStudioNonFatalErrors2
Response: Not available
Cab Id: 0

Problem signature:
P1: devenv.exe
P2: 15.0.26730.8
P3: vs.ide.vbcs.nonfatalwatson
P4: StreamJsonRpc.RemoteInvocation
P5: mscorlib
P6: System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
P7: _
P8: _
P9: _
P10: _

Attached files:
\\?\C:\Users\[xxxx]\AppData\Local\Temp\servicehub\logs\extensionManager-19780-lt4diukh-1.log
\\?\C:\Users\[xxxx]\AppData\Local\Temp\servicehub\logs\extensionManager-19780-lt4diukh-2.log
\\?\C:\Users\[xxxx]\AppData\Local\Temp\servicehub\logs\VsixServiceDiscovery-19780-ivbrsmjy-1.log
\\?\C:\Users\[xxxx]\AppData\Local\Temp\VSFaultInfo\170822_014156_0235232\ErrorInformation.txt
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER87BE.tmp.mdmp
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER8A01.tmp.WERInternalMetadata.xml
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER8A0E.tmp.csv
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER8A2E.tmp.txt

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportArchive\NonCritical_devenv.exe_7e15be666fd163c12d6e99637ba9901fbec949_00000000_1a57923e

Analysis symbol: 
Rechecking for solution: 0
Report Id: 32847924-2a5b-4ae8-b81c-f1b832843019
Report Status: 268435456
Hashed bucket: 0010c56d2e63f030bfa2bde2e0e654ec

Any further information I can provide?

jjanuszkiewicz on 22 Aug 2017

Sorry, that was too quick - I also got an OOM in ServiceHub.RoslynCodeAnalysisService32.exe. The overall behavior is definitely different with this external process option enabled, but it crashes either way.

jjanuszkiewicz on 22 Aug 2017

We are also experiencing this problem after upgrading to 15.3. We also have a pretty large solution, with a lot of code, but it is only split into 19 projects within the solution. So the issue is likely due to solution size, not project size.

One consistent way to replicate the issue in our solution is to use Visual Studio to "find all references" of a method that has a lot of references within the solution. This will consistently replicate the failure.

I believe that Roslyn code analysis is getting overwhelmed at the amount of information it is trying to analyze and running out of memory.

When it fails, we either get an exception like the one above, or the following:
Application: devenv.exe
Framework Version: v4.0.30319
Description: The application requested process termination through System.Environment.FailFast(string message).
Message: System.IO.IOException: Not enough storage is available to process this command.

I think some allocation of memory is getting full, and it's just a matter of whether it's Roslyn or devenv that encounters that limit and fails-- I believe they are the same problem.

We also have codelens disabled. In the past, before 15.3, we would periodically get similar crashes and disabling codelens resolved that problem. However, this occurs consistently with 15.3, with or without codelens.

Our developers have updated to 15.3.2 and this has not resolved the issue. They are still able to consistently replicate the issue.

dougan778 on 23 Aug 2017

@dougan778 Can you supply a repro project and a set of repro steps so we can isolate the issue on our side?

Thanks!

CyrusNajmabadi on 23 Aug 2017

It's been 4 weeks - is there any update on this? This is a really serious regression in VS 15.3 - it is simply unusable for our team now.

jjanuszkiewicz on 21 Sep 2017

I've encountered this problem in a solution with about 30 projects and with over 150,000 lines of code. Most of the projects are .Net Framework with the exception of 2 .Net Core projects. We did not experience this issue in 15.0, 15.1, or 15.2. When VS begins loading the solution we can see the memory climb up until the ceiling is hit and VS gives us this service crash warning.

SyntaxNode on 2 Oct 2017

@SyntaxNode I can't say why it is happening without dump and etl. but sounds like this issue if it started to happen in 15.3 - https://github.com/dotnet/roslyn/pull/22185

can you try 15.4 and see whether it is still happening? if it does, can you provide dump?

heejaechang on 2 Oct 2017

@Pilchie @jinujoseph is this PR (https://github.com/dotnet/roslyn/pull/22185) included in lastest 15.4 released to public?

heejaechang on 2 Oct 2017

It should be in the build released this morning, if not a previous one.

Pilchie on 2 Oct 2017

I'm downloading the latest bits now and will try in the morning. Thnx @heejaechang.

SyntaxNode on 3 Oct 2017

We have a same exception (OutOfMemoryException ) with VS 15.3 on a 30+ projects solutions and/or big files (2000+ rows).
VS just crashes every 5-10 min, it is become completely unusable.

Is there any update on this?
Is there some specific option/setting that causes a problem and can be disabled temporary?

privateField on 5 Oct 2017

@privateField fix is released to latest dev15.4 (https://www.visualstudio.com/vs/preview/). can you try that drop and see whether it still repro? here is release note for 15.4 preview (https://www.visualstudio.com/en-us/news/releasenotes/vs2017-preview-relnotes)

heejaechang on 5 Oct 2017

@heejaechang we will try, thank you.

privateField on 5 Oct 2017

I am still having the same problem with Visual Studio 15.4.0 Preview 5.0.
Visual Studio crashes constantly. I have 16 GB internal memory. What can I do now?
It seems like Visual Studio 2015 doesn't have this problem. 2015 uses 920 MB when opening the solution and 2017 uses 2,7 GB when opening this solution (both versions have ReSharper installed).
A lot of developers in our company cannot do their work now (even the developers that don't use ReSharper)...

The error:

Application: devenv.exe
Framework Version: v4.0.30319
Description: The application requested process termination through System.Environment.FailFast(string message).
Message: System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
   at System.Threading.Tasks.TaskFactory.CommonCWAnyLogic(IList`1 tasks)
   at System.Threading.Tasks.Task.WhenAny(Task[] tasks)
   at Microsoft.VisualStudio.Threading.ThreadingTools.<WithCancellationSlow>d__10`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.ServiceHub.Client.HubClient.<LocateServiceAsync>d__40.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.ServiceHub.Client.HubClient.<RequestServiceChannelNameAsync>d__25.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.ServiceHub.Client.HubClient.<RequestServiceAsync>d__28.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.LanguageServices.Remote.ServiceHubRemoteHostClient.<RetryRemoteCallAsync>d__14`2.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.LanguageServices.Remote.ServiceHubRemoteHostClient.<RequestServiceAsync>d__15.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.LanguageServices.Remote.ServiceHubRemoteHostClient.<TryCreateServiceSessionAsync>d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.Remote.RemoteHostClient.<TryCreateServiceSessionAsync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.Remote.RemoteHostClientExtensions.<RunOnRemoteHostAsync>d__12`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.TodoComments.AbstractTodoCommentService.<GetTodoCommentsInRemoteHostAsync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.TodoComments.AbstractTodoCommentService.<GetTodoCommentsAsync>d__7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.Editor.Implementation.TodoComments.TodoCommentIncrementalAnalyzer.<GetTodoCommentsAsync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at Microsoft.CodeAnalysis.Editor.Implementation.TodoComments.TodoCommentIncrementalAnalyzer.<AnalyzeSyntaxAsync>d__7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService.WorkCoordinator.IncrementalAnalyzerProcessor.<>c__DisplayClass31_1`1.<<RunAnalyzersAsync>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService.WorkCoordinator.IncrementalAnalyzerProcessor.<GetOrDefaultAsync>d__33`2.MoveNext()
Stack:
   at System.Environment.FailFast(System.String, System.Exception)
   at Microsoft.CodeAnalysis.FailFast.OnFatalException(System.Exception)
   at Microsoft.CodeAnalysis.ErrorReporting.FatalError.Report(System.Exception, System.Action`1<System.Exception>)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+<GetOrDefaultAsync>d__33`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].MoveNext()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(System.Threading.Tasks.Task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(System.Threading.Tasks.Task)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+<GetOrDefaultAsync>d__33`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].Start[[Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+<GetOrDefaultAsync>d__33`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], Microsoft.CodeAnalysis.Features, Version=2.4.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]](<GetOrDefaultAsync>d__33`2<System.__Canon,System.__Canon> ByRef)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor.GetOrDefaultAsync[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.__Canon, System.Func`3<System.__Canon,System.Threading.CancellationToken,System.Threading.Tasks.Task`1<System.__Canon>>, System.Threading.CancellationToken)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+<RunAnalyzersAsync>d__31`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[[Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+<RunAnalyzersAsync>d__31`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], Microsoft.CodeAnalysis.Features, Version=2.4.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]](<RunAnalyzersAsync>d__31`1<System.__Canon> ByRef)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor.RunAnalyzersAsync[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]](System.Collections.Immutable.ImmutableArray`1<Microsoft.CodeAnalysis.SolutionCrawler.IIncrementalAnalyzer>, System.__Canon, System.Func`4<Microsoft.CodeAnalysis.SolutionCrawler.IIncrementalAnalyzer,System.__Canon,System.Threading.CancellationToken,System.Threading.Tasks.Task>, System.Threading.CancellationToken)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+<ProcessDocumentAnalyzersAsync>d__30.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[[Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+<ProcessDocumentAnalyzersAsync>d__30, Microsoft.CodeAnalysis.Features, Version=2.4.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]](<ProcessDocumentAnalyzersAsync>d__30 ByRef)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor.ProcessDocumentAnalyzersAsync(Microsoft.CodeAnalysis.Document, System.Collections.Immutable.ImmutableArray`1<Microsoft.CodeAnalysis.SolutionCrawler.IIncrementalAnalyzer>, WorkItem, System.Threading.CancellationToken)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+NormalPriorityProcessor+<ProcessDocumentAsync>d__31.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[[Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+NormalPriorityProcessor+<ProcessDocumentAsync>d__31, Microsoft.CodeAnalysis.Features, Version=2.4.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]](<ProcessDocumentAsync>d__31 ByRef)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+NormalPriorityProcessor.ProcessDocumentAsync(System.Collections.Immutable.ImmutableArray`1<Microsoft.CodeAnalysis.SolutionCrawler.IIncrementalAnalyzer>, WorkItem, System.Threading.CancellationTokenSource)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+NormalPriorityProcessor+<ExecuteAsync>d__18.MoveNext()
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[[Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+NormalPriorityProcessor+<ExecuteAsync>d__18, Microsoft.CodeAnalysis.Features, Version=2.4.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]](<ExecuteAsync>d__18 ByRef)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+NormalPriorityProcessor.ExecuteAsync()
   at Microsoft.CodeAnalysis.SolutionCrawler.IdleProcessor+<ProcessAsync>d__12.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult()
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+NormalPriorityProcessor+<ExecuteAsync>d__18.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult()
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+NormalPriorityProcessor+<ProcessDocumentAsync>d__31.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.Threading.Tasks.Task`1<System.Threading.Tasks.VoidTaskResult>)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+<ProcessDocumentAnalyzersAsync>d__30.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.Threading.Tasks.Task`1<System.Threading.Tasks.VoidTaskResult>)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+<RunAnalyzersAsync>d__31`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetResult(System.__Canon)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.__Canon)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+<GetOrDefaultAsync>d__33`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetResult(System.__Canon)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.__Canon)
   at Microsoft.CodeAnalysis.SolutionCrawler.SolutionCrawlerRegistrationService+WorkCoordinator+IncrementalAnalyzerProcessor+<>c__DisplayClass31_1`1+<<RunAnalyzersAsync>b__0>d[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult()
   at Microsoft.CodeAnalysis.Editor.Implementation.TodoComments.TodoCommentIncrementalAnalyzer+<AnalyzeSyntaxAsync>d__7.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.Threading.Tasks.Task`1<System.Threading.Tasks.VoidTaskResult>)
   at Microsoft.CodeAnalysis.SolutionCrawler.State.AbstractAnalyzerState`3+<PersistAsync>d__13[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetResult(Boolean)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(Boolean)
   at Microsoft.CodeAnalysis.SolutionCrawler.State.AbstractAnalyzerState`3+<WriteToStreamAsync>d__15[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetResult(Boolean)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(Boolean)
   at Microsoft.CodeAnalysis.SQLite.SQLitePersistentStorage+Accessor`3+<WriteStreamAsync>d__10[[System.ValueTuple`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], System.ValueTuple, Version=4.0.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51],[System.ValueTuple`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], System.ValueTuple, Version=4.0.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51],[System.Int64, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.Threading.Tasks.VoidTaskResult)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Threading.Tasks.VoidTaskResult, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(System.Threading.Tasks.Task`1<System.Threading.Tasks.VoidTaskResult>)
   at Microsoft.CodeAnalysis.SQLite.SQLitePersistentStorage+<AddWriteTaskAsync>d__60`1[[System.ValueTuple`2[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]], System.ValueTuple, Version=4.0.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51]].MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[Roslyn.Utilities.SemaphoreSlimExtensions+SemaphoreDisposer, Microsoft.CodeAnalysis.Workspaces, Version=2.4.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]].TrySetResult(SemaphoreDisposer)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[Roslyn.Utilities.SemaphoreSlimExtensions+SemaphoreDisposer, Microsoft.CodeAnalysis.Workspaces, Version=2.4.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]].SetResult(SemaphoreDisposer)
   at Roslyn.Utilities.SemaphoreSlimExtensions+<DisposableWaitAsync>d__1.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.Run()
   at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(System.Action, Boolean, System.Threading.Tasks.Task ByRef)
   at System.Threading.Tasks.Task.FinishContinuations()
   at System.Threading.Tasks.Task.FinishStageThree()
   at System.Threading.Tasks.Task`1[[System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].TrySetResult(Boolean)
   at System.Runtime.CompilerServices.AsyncTaskMethodBuilder`1[[System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].SetResult(Boolean)
   at System.Threading.SemaphoreSlim+<WaitUntilCountOrTimeoutAsync>d__31.MoveNext()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore+MoveNextRunner.InvokeMoveNext(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)

The remainder of the message was truncated.

Daendel on 9 Oct 2017

@Daendel can you provide us dump when OOM happened so that we can see what's taking so much memory?

heejaechang on 9 Oct 2017

@heejaechang
We have installed VS 15.4 preview 5 on one developer's computer yesterday.
During the day he reported an unexpected VS crash twice only.
Both crashes was during the opening WinForms designer.

So, it sounds like most problems with crashes are fixed in 15.4

privateField on 10 Oct 2017

@heejaechang I have created a memory dump of when the window hang
The dump is zipped and chopped in files of 10MB (please remove the .zip extension and open one of the files with 7-zip)

devenv.exe_171011_092957.zip.002.zip
devenv.exe_171011_092957.zip.003.zip
devenv.exe_171011_092957.zip.001.zip

I can also give you a bigger dump (3,6 GB) where you can debug managed memory

Daendel on 10 Oct 2017

thank you for the dump @Daendel

I think we figured out one of case, probably most of cases belong to this) why it is happening.

more detail here. https://github.com/dotnet/roslyn/pull/22658

heejaechang on 12 Oct 2017

@heejaechang Thank you for your response.

I still don't get it completely. The ticket you referred to is about SQLite, while my solution uses MySQL.

Daendel on 13 Oct 2017

@heejaechang
After two days of using VS 15.4 we got the same problems again.
Attached 2 files with examples of errors we getting randomly every hour or every 5 min.
First on a machine with VS 15.4.0 Preview 5 Community Edition installed.
Second on a machine with VS 15.4.0 Professional Edition installed.

I can't say that crashes happening when we open a big files or on a WinForms designer.
We just getting this completely randomly.

VS 15.4.0 Preview 5 Community Errors.txt
VS 15.4.0 Professional Errors.txt

privateField on 13 Oct 2017

we internally uses SQLite and we had some issue where we cause it to consume a lot of memory causing OOM. the PR is about fixing that problem.

heejaechang on 13 Oct 2017

👍2

@privateField yep. we found another issue. we are preparing a fix. see the PR for more info #22658

heejaechang on 13 Oct 2017

@heejaechang #22658 was merged 5 days ago. Any estimation on when the fix goes to production? We had to rollback from 15.4 to 15.2, otherwise VS was hardly usable.

asukhinin on 18 Oct 2017

@asukhinin can you try 15.5 preview 1?

(https://www.visualstudio.com/vs/preview/) and here is release note (https://www.visualstudio.com/en-us/news/releasenotes/vs2017-Preview-relnotes)

soon, more fix will be released to preview 2.

some fixes were back ported to 15.4 as well, but can't remember exactly what were back ported. but 15.5 should have all fixes.

really sorry about the inconvenience!

heejaechang on 18 Oct 2017

I've been using 15.5 preview 1 and haven't had a crash yet (4 days). With previous version (15.4), crashed several times a day. @heejaechang which fixes were back ported? When will they be available on 15.4?

RaoufOsman on 18 Oct 2017

@RaoufOsman good to hear that. tagging @jinujoseph @natidea @sharwell since I don't track all of fixes that got back ported.

but you can go here to see what has been checked in.
https://github.com/dotnet/roslyn/commits/dev15.4.x

heejaechang on 18 Oct 2017

yes, we ported particularity this and this

jinujoseph on 18 Oct 2017

Closing this issue via this and this , pls reopen if you are seeing RoslynCodeAnalysisService32.exe OutOfMemoryException in 15.4.1 or 15.5.preview2 or greater
with latest dmp.

jinujoseph on 20 Oct 2017

@jinujoseph Looks great so far - no crashes after one day and memory usage is a lot lower. Thanks!

jjanuszkiewicz on 22 Oct 2017

@jjanuszkiewicz glad to hear that and thanks for reporting the issue and confirming the fix !!

jinujoseph on 23 Oct 2017

Was this page helpful?

0 / 5 - 0 ratings