runtime: Crash in some tvOS test suite runs

In trying to bring up tvOS simulator runs on CI, there appears to be reliable crashes in a handful of suites. What you’ll find is that the tests actually start running, but at some seemingly random point the app will crash.

To reproduce:

./build.sh -Subset mono+libs -os tvOSSimulator -arch x64
./dotnet.sh build /t:Test src/libraries/System.Globalization/tests/ /p:TargetOS=tvOSSimulator /p:TargetArchitecture=x64

The following suites are impacted:

Microsoft.Bcl.AsyncInterfaces
System.CodeDom
System.Composition.Hosting
System.Composition.TypedParts
System.Dynamic.Runtime
System.Globalization
System.Linq.Expressions
System.Linq.Queryable
System.Linq
System.Numerics.Vectors
System.Runtime.CompilerServices.Unsafe
System.Runtime.InteropServices
System.Security.Cryptography.Primitives
System.Threading.Tasks
System.Xml.RW.*
System.Xml.XmlDocument

Running in Xcode doesn’t give too many hints:

About this issue

Original URL
State: closed
Created 3 years ago
Comments: 16 (15 by maintainers)

Most upvoted comments

I think you misunderstand—the reason that test passed reliably is because it was the wrong test. If you run the NRE test standalone, it will fail every time. The console output was misleading here.

CoffeeFlux on Apr 5, 2021