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[ci-scan] Test failure: Runtime_133207 asserts in ValidateInner on browser WASM R2R #133991
Description
Build Information
Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1597845
Build error leg or test failing: R2R-CG2 browser wasm Checked no_tiered_compilation - global::Runtime_133207.TestEntryPoint()
Pull request: #132927
KBE authoring guidance (ci-failure-scan)
Error Detailsis for readers. The full failure excerpt is included below.- Build Analysis parses only the single JSON block under
Error Message. ErrorMessageis a case-sensitive ordinal match copied verbatim from the failing log.BuildRetryis false because this is a runtime assertion rather than an infrastructure retry failure.
Error Details
18:33:46.795 Running test: global::Runtime_133207.TestEntryPoint()
ASSERT FAILED
Expression: !CREATE_CHECK_STRING(pMT && pMT->Validate())
Location: /__w/1/s/src/coreclr/vm/object.cpp:539
Function: ValidateInner
Process: 42
Frame (InlinedCallFrame): 0x4fcac4
Frame (InterpreterFrame): 0x4fdbb0
0) Internal.Runtime.CompilerHelpers.ThrowHelpers::ThrowNullReferenceException, IR_0009
Frame (InterpreterFrame): 0x4fea30
1) Xunit.Assert::RecordException, IR_0021
2) Xunit.Assert::Throws, IR_0019
Aborted(native code called abort())
RuntimeError: unreachable
Error Message
{
"ErrorMessage": [
"Running test: global::Runtime_133207.TestEntryPoint()",
"Expression: !CREATE_CHECK_STRING(pMT && pMT->Validate())"
],
"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
Affected leg: R2R-CG2 browser WASM Checked, no tiered compilation, Ubuntu 26.04 x64 host.
The same test passed in concurrent builds based on the same main commit, and three local replays of this build's exact Helix payload also passed. Closed KBE #133207 covered a different semantic failure and does not match this assertion or platform.
Note
This issue was created with GitHub Copilot assistance.
Known issue validation
Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1597845
Error message validated: [Running test: global::Runtime_133207.TestEntryPoint() Expression: !CREATE_CHECK_STRING(pMT && pMT->Validate())]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 9/15/2026 9:17:03 PM UTC
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Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 0 | 0 | 33 |
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dotnet-policy-service commentedon Sep 15, 2026
Tagging subscribers to this area: @dotnet/runtime-infrastructure
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dotnet-policy-service commentedon Sep 15, 2026
Tagging subscribers to 'arch-wasm': @lewing, @pavelsavara
See info in area-owners.md if you want to be subscribed.
dotnet-policy-service commentedon Sep 15, 2026
Tagging subscribers to this area: @dotnet/crossgen-contrib
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