Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1460843
Build error leg or test failing: linux-arm Release - System.Security.Cryptography.Tests

Error Details

System.Security.Cryptography.Tests crashes with a segmentation fault (SIGSEGV, exit code 139) early in test execution on linux-arm under the runtime-coreclr libraries-jitstress pipeline (definition 138). The test runner discovers 5982 test cases and starts execution, but crashes before producing any xUnit results file.

/root/helix/work/correlation/dotnet exec --runtimeconfig System.Security.Cryptography.Tests.runtimeconfig.json --depsfile System.Security.Cryptography.Tests.deps.json xunit.console.dll System.Security.Cryptography.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing
  Discovering: System.Security.Cryptography.Tests (method display = ClassAndMethod, method display options = None)
  Discovered:  System.Security.Cryptography.Tests (found 5982 of 6115 test cases)
  Starting:    System.Security.Cryptography.Tests (parallel test collections = on [2 threads], stop on fail = off)
./RunTests.sh: line 175:    20 Segmentation fault      (core dumped)
Exit Code:139

Error Message

true only for clear infra flakes. ExcludeConsoleLog skips helix log scanning. -->

{
  "ErrorMessage": [
    "System.Security.Cryptography.Tests.runtimeconfig.json",
    "Segmentation fault      (core dumped)"
  ],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Impact on platforms

• runtime-coreclr libraries-jitstress (def 138) / linux-arm Release / Helix queue: ubuntu.2204.armarch.open / exit code: 139 (SIGSEGV)

First build it occurred

• Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1455485
• Finished: 2026-06-09T08:58:52Z
• Occurrences in window: 5 (builds 1455485, 1457260, 1459137, 1460843, 1462679)
• Persistent across the entire scanned window; true origin may predate 2026-06-09.

Duplicate search

• System.Security.Cryptography.Tests linux-arm label:"Known Build Error" — 0 results
• System.Security.Cryptography.Tests Segmentation fault linux-arm jitstress label:"Known Build Error" — 0 results
• is:issue is:open "System.Security.Cryptography.Tests" "Segmentation fault" linux arm — 0 results
• is:pr is:open "System.Security.Cryptography.Tests" linux arm crash — unrelated results ([clr-ios] Preserve inherited MemberData statics on maccatalyst CoreCLR #128409 maccatalyst, Move libraries tests to xunit3 #126277 xunit3 migration)

No existing KBE matches this signature.

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.

network:
  allowed:
    - defaults
    - "dotnet.github.io"

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

Generated by CI Outer-Loop Failure Scanner · ● 69.2M · ◷

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Summary