Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1423965
Build error leg or test failing: osx-arm64 checked HardwareIntrinsics_Arm_ro - Sve_Scatter8BitNarrowing_long_ulong

Error Details

The SVE Scatter8BitNarrowing test crashes with an array bounds assertion during the jit-experimental pipeline (definition 137) on osx-arm64. The test constructor exceeds array bounds (index 1031 vs length 1024), likely due to incorrect scatter offset computation under the experimental JIT configuration.

4 consecutive failures (builds 1414624, 1415018, 1423515, 1423965).

Assertion failed.
Index 1031 exceeds array length 1024
   at JIT.HardwareIntrinsics.Arm._Sve._Sve.SveScatterVectorBasesTest__Sve_Scatter8BitNarrowing_long_ulong..ctor()
   at JIT.HardwareIntrinsics.Arm._Sve._Sve.Program.Sve_Scatter8BitNarrowing_long_ulong()
   at Program.<<Main>$>g__TestExecutor5273|0_5274(StreamWriter tempLogSw, StreamWriter statsCsvSw, ...)

Error Message

{
  "ErrorMessage": ["Sve_Scatter8BitNarrowing_long_ulong", "Index 1031 exceeds array length 1024"],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

tools:
  github:
    min-integrity: approved  # merged | approved | unapproved | none

Generated by CI Outer-Loop Failure Scanner · ● 49.8M · ◷

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Summary

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1423965
Error message validated: [Sve_Scatter8BitNarrowing_long_ulong Index 1031 exceeds array length 1024]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 5/18/2026 2:33:09 PM UTC

Report

Summary

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1423965
Error message validated: [Sve_Scatter8BitNarrowing_long_ulong Index 1031 exceeds array length 1024]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 5/18/2026 2:33:09 PM UTC