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[ci-scan] Test failure: System.Net.Security.Tests.SslStreamTlsResumeTests.ClientDisableTlsResume_Succeeds #134116
Description
Build Information
Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1600102
Build error leg or test failing: windows-x86 Debug Libraries_CheckedCoreCLR - windows.10.amd64.open.rt - System.Net.Security.Tests
Pull request: #133932
KBE authoring guidance (ci-failure-scan)
Error Detailsis 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. ErrorMessageis a case-sensitive ordinalString.Containssubstring copied verbatim from the failing log.- Set
BuildRetrytotrueonly for a clear infrastructure retry case.ExcludeConsoleLogdisables Helix console-log scanning.
Error Details
System.Net.Security.Tests.SslStreamTlsResumeTests.ClientDisableTlsResume_Succeeds(testClient: False) [FAIL]
Assert.True() Failure
Expected: True
Actual: False
Stack Trace:
/_/src/libraries/System.Net.Security/tests/FunctionalTests/SslStreamAllowTlsResumeTests.cs(134,0): at System.Net.Security.Tests.SslStreamTlsResumeTests.ClientDisableTlsResume_Succeeds(Boolean testClient)
--- End of stack trace from previous location ---
This is a post-fix recurrence of #103449 after #126693 merged on April 14, 2026. The current failure occurred in a build completed on September 17, 2026 and affects the testClient: False path after TLS resumption is re-enabled on the server side.
Error Message
{
"ErrorMessage": [
"System.Net.Security.Tests.SslStreamTlsResumeTests.ClientDisableTlsResume_Succeeds(testClient: False) [FAIL]",
"/_/src/libraries/System.Net.Security/tests/FunctionalTests/SslStreamAllowTlsResumeTests.cs(134,0): at System.Net.Security.Tests.SslStreamTlsResumeTests.ClientDisableTlsResume_Succeeds(Boolean testClient)"
],
"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
Note
This issue was created with GitHub Copilot assistance.
Known issue validation
Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1600102
Error message validated: [System.Net.Security.Tests.SslStreamTlsResumeTests.ClientDisableTlsResume_Succeeds(testClient: False) [FAIL] /_/src/libraries/System.Net.Security/tests/FunctionalTests/SslStreamAllowTlsResumeTests.cs(134,0): at System.Net.Security.Tests.SslStreamTlsResumeTests.ClientDisableTlsResume_Succeeds(Boolean testClient)]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 9/17/2026 2:02:31 AM UTC
Report
Summary
| 24-Hour Hit Count | 7-Day Hit Count | 1-Month Count |
|---|---|---|
| 0 | 0 | 0 |
Activity
dotnet-policy-service commentedon Sep 17, 2026
Tagging subscribers to this area: @dotnet/ncl, @bartonjs, @vcsjones
See info in area-owners.md if you want to be subscribed.
jeffschwMSFT commentedon Oct 19, 2026
removing blocking-clean-ci as it has not failed in 30 days
rzikm commentedon Oct 20, 2026
Should be resolved by #135751,