Microsoft.Extensions.Caching.Memory.MemoryCacheSetAndRemoveTests.AddAndReplaceEntries_AreThreadSafe failed in CI

[ViktorHofer]

https://dev.azure.com/dnceng/public/_build/results?buildId=1007936&view=ms.vss-test-web.build-test-results-tab&runId=31443624&paneView=debug

Configuration: net6.0-Linux-Debug-x64-CoreCLR_checked-Ubuntu.1804.Amd64.Open

Assert.Equal() Failure\nExpected: 3\nActual:   0
   at Microsoft.Extensions.Caching.Memory.MemoryCacheSetAndRemoveTests.AddAndReplaceEntries_AreThreadSafe() in /_/src/libraries/Microsoft.Extensions.Caching.Memory/tests/MemoryCacheSetAndRemoveTests.cs:line 652

[ghost]

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Issue Details

---

https://dev.azure.com/dnceng/public/_build/results?buildId=1007936&view=ms.vss-test-web.build-test-results-tab&runId=31443624&paneView=debug

Configuration: net6.0-Linux-Debug-x64-CoreCLR_checked-Ubuntu.1804.Amd64.Open

Assert.Equal() Failure\nExpected: 3\nActual:   0
   at Microsoft.Extensions.Caching.Memory.MemoryCacheSetAndRemoveTests.AddAndReplaceEntries_AreThreadSafe() in /_/src/libraries/Microsoft.Extensions.Caching.Memory/tests/MemoryCacheSetAndRemoveTests.cs:line 652

Author:	ViktorHofer
Assignees:	-
Labels:	area-Extensions-Caching
Milestone:	-

[VincentBu]

Failed again in runtime-coreclr libraries-jitstress 20210406.1

Failed test:

net6.0-windows-Release-x86-CoreCLR_checked-no_tiered_compilation-Windows.10.Amd64.Open
 -Microsoft.Extensions.Caching.Memory.MemoryCacheSetAndRemoveTests.AddAndReplaceEntries_AreThreadSafe

Error message:

Assert.Equal() Failure
Expected: 14
Actual:   17


Stack trace
   at Microsoft.Extensions.Caching.Memory.MemoryCacheSetAndRemoveTests.AddAndReplaceEntries_AreThreadSafe() in /_/src/libraries/Microsoft.Extensions.Caching.Memory/tests/MemoryCacheSetAndRemoveTests.cs:line 652

[radical]

This looks similar too:

    Microsoft.Extensions.Caching.Memory.MemoryCacheSetAndRemoveTests.AddAndReplaceEntries_AreThreadSafe [FAIL]
      Assert.Equal() Failure
      Expected: 7
      Actual:   0
      Stack Trace:
        /_/src/libraries/Microsoft.Extensions.Caching.Memory/tests/MemoryCacheSetAndRemoveTests.cs(652,0): at Microsoft.Extensions.Caching.Memory.MemoryCacheSetAndRemoveTests.AddAndReplaceEntries_AreThreadSafe()

Log: https://helixre8s23ayyeko0k025g8.blob.core.windows.net/dotnet-runtime-refs-pull-48226-merge-d71a076ddbd148d08f/Microsoft.Extensions.Caching.Memory.Tests/console.5fe33e96.log?sv=2019-07-07&se=2021-05-11T04%3A25%3A06Z&sr=c&sp=rl&sig=5P3jI3UjXYHK2W0za5T%2BLQdxg65ZrjbzbDcD5npOmhs%3D

https://dev.azure.com/dnceng/public/_build/results?buildId=1099089&view=logs&jobId=71afe768-e493-597c-228c-037834193aeb&j=71afe768-e493-597c-228c-037834193aeb&t=fe87d331-02fa-5ca6-e382-69b0a11bb0f6

[danmoseley]

#50270