System.Threading.Tasks.Dataflow.Tests timing out in the CI on x64 macOS

[MichalStrehovsky]

Looks to be specific to x64 macOS. I've seen this at least twice.

We need a dump to figure out where it's stuck, but the CI doesn't make one for timeouts.

https://helix.dot.net/api/2019-06-17/jobs/0a5f6851-e7db-4128-b3c3-db828c8b6277/workitems/System.Threading.Tasks.Dataflow.Tests/console

Console log: 'System.Threading.Tasks.Dataflow.Tests' from job 0a5f6851-e7db-4128-b3c3-db828c8b6277 workitem 78854a02-3f13-41f9-9e00-b7e19f3a8bdb (osx.1200.amd64.open) executed on machine dci-mac-build-340.local running macOS-12.4
+ ./RunTests.sh --runtime-path /tmp/helix/working/ACAD094C/p
----- start Thu Dec 22 22:40:48 PST 2022 =============== To repro directly: =====================================================
pushd .
chmod +rwx System.Threading.Tasks.Dataflow.Tests ^&^& ./System.Threading.Tasks.Dataflow.Tests -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing -xml testResults.xml 
popd
===========================================================================================================
/private/tmp/helix/working/ACAD094C/w/9EC00949/e /private/tmp/helix/working/ACAD094C/w/9EC00949/e
Running assembly:System.Threading.Tasks.Dataflow.Tests, Version=8.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
[SKIP] System.Threading.Tasks.Dataflow.Tests.EtwTests.TestEtw
[SKIP] System.Threading.Tasks.Dataflow.Tests.DebugAttributeTests.TestDebuggerDisplaysAndTypeProxies
['System.Threading.Tasks.Dataflow.Tests' END OF WORK ITEM LOG: Command timed out, and was killed]

[ghost]

Tagging subscribers to this area: @agocke, @MichalStrehovsky, @jkotas
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Issue Details

---

Looks to be specific to x64 macOS. I've seen this at least twice.

We need a dump to figure out where it's stuck, but the CI doesn't make one for timeouts.

https://helix.dot.net/api/2019-06-17/jobs/0a5f6851-e7db-4128-b3c3-db828c8b6277/workitems/System.Threading.Tasks.Dataflow.Tests/console

Console log: 'System.Threading.Tasks.Dataflow.Tests' from job 0a5f6851-e7db-4128-b3c3-db828c8b6277 workitem 78854a02-3f13-41f9-9e00-b7e19f3a8bdb (osx.1200.amd64.open) executed on machine dci-mac-build-340.local running macOS-12.4
+ ./RunTests.sh --runtime-path /tmp/helix/working/ACAD094C/p
----- start Thu Dec 22 22:40:48 PST 2022 =============== To repro directly: =====================================================
pushd .
chmod +rwx System.Threading.Tasks.Dataflow.Tests ^&^& ./System.Threading.Tasks.Dataflow.Tests -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing -xml testResults.xml 
popd
===========================================================================================================
/private/tmp/helix/working/ACAD094C/w/9EC00949/e /private/tmp/helix/working/ACAD094C/w/9EC00949/e
Running assembly:System.Threading.Tasks.Dataflow.Tests, Version=8.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51
[SKIP] System.Threading.Tasks.Dataflow.Tests.EtwTests.TestEtw
[SKIP] System.Threading.Tasks.Dataflow.Tests.DebugAttributeTests.TestDebuggerDisplaysAndTypeProxies
['System.Threading.Tasks.Dataflow.Tests' END OF WORK ITEM LOG: Command timed out, and was killed]

Author:	MichalStrehovsky
Assignees:	-
Labels:	area-NativeAOT-coreclr
Milestone:	-

[jkotas]

This was likely fixed by #82709.