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[ci-scan] Hang: JIT/jit64/regress/vsw/539509/test1_539509 never exits after Passed on browser-wasm R2R-CG2 #135042

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[ci-scan] Hang: JIT/jit64/regress/vsw/539509/test1_539509 never exits after Passed on browser-wasm R2R-CG2#135042
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Known Build ErrorUse this to report build issues in the .NET Helix tabarea-Infrastructureblocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'untriagedNew issue has not been triaged by the area owner

Description

@lewing
lewing
opened on Oct 1, 2026

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1619748
Build error leg or test failing: run_test_p0_coreclr_R2R_CG2_browser_wasm_checked (R2R-CG2 browser wasm Checked no_tiered_compilation)-JIT/jit64/regress/vsw/539509/test1_539509/test1_539509.cmd
Pull request: #134618

KBE authoring guidance (ci-failure-scan)
  • Error Details is for readers. Paste the full exception, stack trace, or build error excerpt so the failure is understandable without opening the raw log.
  • Build Analysis parses only the single JSON block under Error Message.
  • ErrorPattern uses .NET Singleline | IgnoreCase | NonBacktracking matching with a 50ms-per-line timeout.
  • Keep the regex anchored, prefer [^\n]* over .*, and avoid catastrophic backtracking.
  • Set BuildRetry to true only for a clear infrastructure retry case. ExcludeConsoleLog disables Helix console-log scanning.

The test crossgens and runs under node with corerun.js. It handles every expected exception and prints Passed., but the node process never exits. The out-of-process wrapper kills it after the 1800 s timeout, so the test fails even though its body passed. Helix work item jit64_5, job 6ca59463-8af3-4f89-bf8b-e15def16552f.

The PR build that hit this doesn't change crossgen2, the JIT, the VM, or corerun; its diff is limited to the browser WebAssembly SDK pack targets, boot-config tasks, and the browser loader. The test didn't fail in the main runtime build 1619318.

Error Details

Running: node --experimental-wasm-exnref --stack-size=8192 /root/helix/work/correlation/corerun.js -c /root/helix/work/correlation -p System.Reflection.Metadata.MetadataUpdater.IsSupported=false -p System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization=true /root/helix/work/workitem/e/JIT/jit64/regress/vsw/539509/test1_539509/test1_539509.dll
Testing AA::Method1
Exception handled: System.InvalidCastException: Unable to cast object of type 'BB' to type 'AA`6[System.SByte,System.Byte,System.UInt32,System.UInt32,System.Int64,System.Boolean]'.
...
Testing BB::Method1
Exception handled: System.InvalidCastException: Unable to cast object of type 'AA`6[System.SByte,System.Byte,System.UInt32,System.UInt32,System.Int64,System.Boolean]' to type 'BB'.
   at BB.Method1(UInt32[,][][]& param1, String[][]& param2, Char[,]& param3, AA`6 param4, AA`6& param5, Int32 param6)
   at App.TestEntryPoint()
Passed.
Process 828 exceeded timeout of 1800 seconds. Killing...
../regress/vsw/539509/test1_539509/test1_539509.sh: line 488:   828 Killed                     "${cmd[@]}"
Kill watchdog with PID 829

Error Message

{
  "ErrorMessage": "",
  "ErrorPattern": "test1_539509\\.sh: line \\d+:\\s+\\d+ Killed",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}
Agentic workflow metadata (ci-failure-scan)

Workflow artifact: ci-failure-scan
Artifact kind: kbe-verification
Verified match count: 2 hits in failure.log

Note

This issue was drafted with GitHub Copilot.

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1619748
Error message validated: [test1_539509\.sh: line \d+:\s+\d+ Killed]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 10/1/2026 6:44:01 PM UTC

Report

Build Repository Test Pull Request
1629814 dotnet/runtime JIT/jit64/regress/vsw/539509/test1_539509/test1_539509.cmd #135488
1629058 dotnet/runtime JIT/jit64/regress/vsw/539509/test1_539509/test1_539509.cmd #135459
1626070 dotnet/runtime JIT/jit64/regress/vsw/539509/test1_539509/test1_539509.cmd
1624985 dotnet/runtime JIT/jit64/regress/vsw/539509/test1_539509/test1_539509.cmd #135276
1624956 dotnet/runtime JIT/jit64/regress/vsw/539509/test1_539509/test1_539509.cmd #135275
1624118 dotnet/runtime JIT/jit64/regress/vsw/539509/test1_539509/test1_539509.cmd #133819
1619945 dotnet/runtime JIT/jit64/regress/vsw/539509/test1_539509/test1_539509.cmd
1619748 dotnet/runtime JIT/jit64/regress/vsw/539509/test1_539509/test1_539509.cmd #134618

Summary

24-Hour Hit Count 7-Day Hit Count 1-Month Count
0 3 8

Activity

  1. lewing
    added
    blocking-clean-ciBlocking PR or rolling runs of 'runtime' or 'runtime-extra-platforms'
    Known Build ErrorUse this to report build issues in the .NET Helix tab
    on Oct 1, 2026
  2. dotnet-policy-service
    added
    untriagedNew issue has not been triaged by the area owner
    on Oct 1, 2026
  3. github-actions
    added
    area-Infrastructure
    on Oct 1, 2026
  4. github-project-automation
    added this to Runtime Infraon Oct 1, 2026

  5. dotnet-policy-service commented on Oct 1, 2026

    @dotnet-policy-service
    dotnet-policy-servicebot
    on Oct 1, 2026 – with Dotnet Policy Service
    Contributor

    Tagging subscribers to this area: @dotnet/runtime-infrastructure
    See info in area-owners.md if you want to be subscribed.

  6. VincentBu commented on Oct 12, 2026

    @VincentBu
    VincentBu
    on Oct 12, 2026
    Contributor

    Failed in: runtime-coreclr gcstress0x3-gcstress0xc 20261010.1

    Failed tests:

    coreclr windows x86 Checked gcstress0x3 @ Windows.10.Amd64.Open
- JIT/jit64/regress/vsw/539509/test1_539509/test1_539509.cmd

    Error message:

    cmdLine:C:\h\w\B022097C\w\AFF209BC\e\JIT\jit64\jit64_5\../regress/vsw/539509/test1_539509/test1_539509.cmd Timed Out (timeout in milliseconds: 3600000 from variable __TestTimeout, start: 10/10/2026 2:19:23 PM, end: 10/10/2026 3:19:23 PM)

Return code:      -100
Raw output file:      C:\h\w\B022097C\w\AFF209BC\uploads\regress\vsw\539509\test1_539509\output.txt
Raw output:
BEGIN EXECUTION
 "C:\h\w\B022097C\p\corerun.exe" -p "System.Reflection.Metadata.MetadataUpdater.IsSupported=false" -p "System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization=true"  test1_539509.dll 
Testing AA::Method1
Exception handled: System.InvalidCastException: Unable to cast object of type 'BB' to type 'AA`6[System.SByte,System.Byte,System.UInt32,System.UInt32,System.Int64,System.Boolean]'.
   at App.TestEntryPoint()
Testing AA::Static1
Exception handled: System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
Testing AA::Static2
Exception handled: System.InvalidCastException: Unable to cast object of type 'AA`6[System.SByte,System.Byte,System.UInt32,System.UInt32,System.Int64,System.Boolean]' to type 'System.SByte[][,,,]'.
   at AA`6.Static2(UInt64 param1, Int16 param2, UInt32& param3, TA& param4)
   at App.TestEntryPoint()
Testing AA::Static3
Exception handled: System.NullReferenceException: Object reference not set to an instance of an object.
   at AA`6.Static3(TestEnum param1, Int16 param2)
   at App.TestEntryPoint()
Testing AA::Static4
Testing AA::Static5
Exception handled: System.NullReferenceException: Object reference not set to an instance of an object.
   at AA`6.Static5(TE& param1, Char[,,,][]& param2, Array param3, UInt64[,,,,]& param4, Int64[,][][][][,,,]& param5)
   at App.TestEntryPoint()
Testing BB::Method1
Exception handled: System.InvalidCastException: Unable to cast object of type 'AA`6[System.SByte,System.Byte,System.UInt32,System.UInt32,System.Int64,System.Boolean]' to type 'BB'.
   at BB.Method1(UInt32[,][][]& param1, String[][]& param2, Char[,]& param3, AA`6 param4, AA`6& param5, Int32 param6)
   at App.TestEntryPoint()
Passed.

cmdLine:C:\h\w\B022097C\w\AFF209BC\e\JIT\jit64\jit64_5\../regress/vsw/539509/test1_539509/test1_539509.cmd Timed Out (timeout in milliseconds: 3600000 from variable __TestTimeout, start: 10/10/2026 2:19:23 PM, end: 10/10/2026 3:19:23 PM)
Test Harness Exitcode is : -100
To run the test:
Set up CORE_ROOT and run.
> C:\h\w\B022097C\w\AFF209BC\e\JIT\jit64\jit64_5\../regress/vsw/539509/test1_539509/test1_539509.cmd

    Stack trace:

    at Xunit.Assert.True(Nullable`1 condition, String userMessage) in /_/src/arcade/src/Microsoft.DotNet.XUnitAssert/src/BooleanAsserts.cs:line 135
   at TestLibrary.OutOfProcessTest.RunOutOfProcessTest(String assemblyPath, String testPathPrefix) in /__w/1/s/src/tests/Common/CoreCLRTestLibrary/OutOfProcessTest.cs:line 202
   at Program.<<Main>$>g__TestExecutor232|0_233(StreamWriter tempLogSw, StreamWriter statsCsvSw, StreamWriter outOfProcessPlanWriter, <>c__DisplayClass0_0&)
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