Test failure: Assertion failed 'likelihood <= 1.0'

[jkotas]

  Starting:    System.Text.RegularExpressions.Tests (parallel test collections = on [2 threads], stop on fail = off)

Assert failure(PID 21 [0x00000015], Thread: 30 [0x001e]): Assertion failed 'likelihood <= 1.0' in 'Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax.Lexer:LexXmlWhitespaceAndNewLineTrivia(byref):this' during 'Recognize Switch' (IL size 152; hash 0x82b23354; Tier1)

    File: /__w/1/s/src/coreclr/jit/block.cpp:81
    Image: /root/helix/work/correlation/dotnet

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=814658 Build error leg or test failing: System.Collections.Concurrent.Tests.WorkItemExecution Pull request: https://github.com/dotnet/runtime/pull/108048

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": "likelihood <= 1.0",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: :mag_right: https://dev.azure.com/dnceng-public/public/_build/results?buildId=814658 Error message validated: [likelihood <= 1.0] Result validation: :white_check_mark: Known issue matched with the provided build. Validation performed at: 9/21/2024 2:32:34 PM UTC

Report

Build	Definition	Test	Pull Request
816686	dotnet/runtime	System.Text.RegularExpressions.Tests.WorkItemExecution
816522	dotnet/runtime	System.Text.RegularExpressions.Tests.WorkItemExecution	dotnet/runtime#108171
816072	dotnet/runtime	System.Text.RegularExpressions.Tests.WorkItemExecution	dotnet/runtime#107709
815290	dotnet/runtime	System.Text.RegularExpressions.Tests.WorkItemExecution	dotnet/runtime#108117
815210	dotnet/runtime	Microsoft.Extensions.Logging.Generators.Roslyn3.11.Tests.WorkItemExecution	dotnet/runtime#108104
815034	dotnet/runtime	System.Text.RegularExpressions.Tests.WorkItemExecution	dotnet/runtime#107863
814912	dotnet/runtime	System.Text.RegularExpressions.Tests.WorkItemExecution	dotnet/runtime#106599
814853	dotnet/runtime	Microsoft.Extensions.Logging.Generators.Roslyn4.8.Tests.WorkItemExecution	dotnet/runtime#107772
814658	dotnet/runtime	System.Text.RegularExpressions.Tests.WorkItemExecution	dotnet/runtime#108048
814398	dotnet/runtime	System.Text.RegularExpressions.Tests.WorkItemExecution	dotnet/runtime#108083
813801	dotnet/runtime	System.Text.RegularExpressions.Tests.WorkItemExecution	dotnet/runtime#108049

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	3	11

[dotnet-policy-service[bot]]

Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch See info in area-owners.md if you want to be subscribed.

[AndyAyersMS]

@EgorBo likely related to #107831

[amanasifkhalid]

108125 looks related. #108124 was probably caused by #107831, too -- to fix the latter, I think we might just need to move the fgRenumberBlocks call up in Compiler::optSwitchRecognition.

[EgorBo]

Thanks, yeah I am trying to repro it locally now

[EgorBo]

Regressed by 10.0 PR

[JulieLeeMSFT]

Closing because the original code that caused the issue is reverted.