Template engine tests hitting known parallelism issue in GetVisualStudioInstances

[marcpopMSFT]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=869444
Build error leg or test failing: Microsoft.DotNet.Cli.New.IntegrationTests.DotnetNewInstantiateTests.CanInstantiateTemplate_WithConditions_BasedOnFileName
Pull request: #44859

Error Message

{
  "ErrorMessage": "57005",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=869444
Error message validated: [57005]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 11/14/2024 7:41:30 PM UTC

Report

Build	Definition	Step Name	Console log	Pull Request
1092974	dotnet/sdk	🟣 Build	Log	#49740
1092892	dotnet/sdk	🟣 Run TestBuild Tests	Log	#49751
1092654	dotnet/sdk	🟣 Run TestBuild Tests	Log	#47389
2747888	dotnet-sdk	Build (ubuntu2204DebPkg)	Log
1089269	dotnet/sdk	🟣 Run TestBuild Tests	Log	#49706
1089275	dotnet/sdk	Build	Log	#49547
1088585	dotnet/sdk	Build	Log	#49691
1087483	dotnet/sdk	🟣 Run TestBuild Tests	Log	#49589
1085653	dotnet/sdk	Run TestBuild Tests	Log	#49657
2738696	dotnet-sdk	Run Tests in Helix and non Helix in parallel	Log	#51233
1079195	dotnet/sdk	🟣 Run TestBuild Tests	Log	#48699
1076796	dotnet/sdk	🟣 Run TestBuild Tests	Log	#49389
2735964	dotnet-sdk	OneLocBuild	Log
1074927	dotnet/sdk	🟣 Run TestBuild Tests	Log	#49521
1074019	dotnet/sdk	🟣 Run ContainerBased Tests	Log	#49514
1072285	dotnet/sdk	🟣 Run ContainerBased Tests	Log	#49480
1071978	dotnet/sdk	🟣 Run TestBuild Tests	Log	#49482
1070138	dotnet/sdk	🟣 Run ContainerBased Tests	Log	#49452
1070523	dotnet/sdk	Build	Log
1070522	dotnet/sdk	Build	Log
1069866	dotnet/sdk	Synchronize dotnet/dotnet (Unix)	Log	#49442
2731748	dotnet-sdk	Build	Log	#50943
1069571	dotnet/sdk	🟣 Run ContainerBased Tests	Log	#49284
1069419	dotnet/sdk	🟣 Build	Log	#49424
1068007	dotnet/sdk	🟣 Run TestBuild Tests	Log	#49389
1068340	dotnet/sdk	🟣 Build	Log	#49291
1067335	dotnet/sdk	🟣 Run FullFramework Tests	Log	#49385

Build	Definition	Test	Pull Request
1092019	dotnet/sdk	Microsoft.NET.Sdk.BlazorWebAssembly.Tests.dll.1.WorkItemExecution	#49740
1088028	dotnet/sdk	dotnet.Tests.dll.16.WorkItemExecution	#49528
1086510	dotnet/sdk	dotnet-watch.Tests.dll.5.WorkItemExecution	#46243
1071927	dotnet/sdk	Microsoft.NET.Sdk.BlazorWebAssembly.Tests.WasmBuildIntegrationTest.Microsoft.NET.Sdk.BlazorWebAssembly.Tests.WasmBuildIntegrationTest.Build_SatelliteAssembliesAreCopiedToBuildOutput	#49480

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
2	10	31

[BrennanConroy]

Template engine tests hitting known parallelism issue in GetVisualStudioInstances

Is there an issue describing the problem? Are there people working on fixing it? We're hitting this in the aspnetcore repo a lot and as far as I'm aware we don't do anything with UWP which is how the sdk resolved the problem.

[baronfel]

@jaredpar sent a PR here with a short-term workaround that we're working to merge: #44930

The 'true' fix is coming in a future VS release, there was some unintended concurrent access to a critical section that wasn't locked.