[ci-scan] Test failure: JIT/opt/GuardedDevirtualization/badinlinee returns 101 on composite-R2R windows-arm64 gcstress

[github-actions]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1604094
Build error leg or test failing: coreclr Pri1 Runtime Tests Run Composite windows arm64 checked @ windows.11.arm64.open - JIT.opt.0.1 (JIT/opt/GuardedDevirtualization/badinlinee)

Pipeline: runtime-coreclr crossgen2-composite gcstress (definition 141), branch main. The JIT/opt/GuardedDevirtualization/badinlinee test fails on the composite R2R windows arm64 checked leg under gcstress: the test returns 101 instead of the expected 100 (and the harness records a wrapped -1), so the R2R composite run of badinlinee.dll fails. The failure reproduces on source build 1604094 (2026-09-20) and persists into follow-up build 1604685 (2026-09-21, two legs).

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.
• ErrorMessage is a case-sensitive ordinal String.Contains substring copied verbatim from the failing log.
• Set BuildRetry to true only for a clear infrastructure retry case. ExcludeConsoleLog disables Helix console-log scanning.

Error Details

"...\corerun.exe" ... badinlinee.dll
Test allocated 84992 bytes
Xunit.Sdk.EqualException: Assert.Equal() Failure: Values differ
Expected: 100
Actual:   -1
   at __GeneratedMainWrapper.Main()
Expected: 100
Actual: 101
END EXECUTION - FAILED
Failed test: JIT/opt/GuardedDevirtualization/badinlinee/badinlinee.cmd

Error Message

{
  "ErrorMessage": [
    "Test allocated 84992 bytes",
    "Failed test: JIT/opt/GuardedDevirtualization/badinlinee/badinlinee.cmd"
  ],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Agentic workflow metadata (ci-failure-scan)

Workflow artifact: ci-failure-scan
Artifact kind: kbe-verification
Verified match count: 1 hits in failure.log

First build it occurred

This composite-gcstress badinlinee failure appears in source build 1604094 (2026-09-20) and follow-up build 1604685 (2026-09-21). Definition 141 runs on a weekend/weekly cadence and has failed continuously across the scanned window; the true origin of this specific test failure may predate 2026-09-20.

Duplicate search

Searched open and closed Known Build Error issues, area trackers, and open PRs for badinlinee, GuardedDevirtualization, and the composite-R2R gcstress leg: no existing KBE, tracker, or fix PR matches this test failure.

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Filed by ci-failure-scan (detection only). ci-failure-fix walks open [ci-scan] KBEs and either opens a small fix PR or comments here to loop in owners — it never disables the test.

Generated by CI Outer-Loop Failure Scanner · opus48 · 997.2 AIC · ⌖ 15 AIC · ⊞ 19.2K · ◷

Report

Build	Repository	Test	Pull Request
1613360	dotnet/runtime	JIT/opt/GuardedDevirtualization/badinlinee/badinlinee.cmd

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
1	1	1