[ci-scan] Test failure: ShutdownTests.ShutdownTestRun on crossgen2 (No process associated) #130014

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1484682
Build error leg or test failing: linux-x64 Release TestReadyToRun_Libraries - Microsoft.Extensions.Hosting.Functional.Tests

Error Details

ShutdownTests.ShutdownTestRun fails on the linux-x64 Release TestReadyToRun_Libraries leg of runtime-coreclr crossgen2 (def 124) with System.InvalidOperationException : No process is associated with this object.. The exception is thrown from Process.get_HasExited() called by DeploymentResult.AssertStillRunning().

[FAIL] Microsoft.AspNetCore.Hosting.FunctionalTests.ShutdownTests.ShutdownTestRun
      System.InvalidOperationException : No process is associated with this object.
         at System.Diagnostics.Process.get_HasExited()
         at Microsoft.AspNetCore.Server.IntegrationTesting.DeploymentResult.AssertStillRunning()
         at Microsoft.AspNetCore.Hosting.FunctionalTests.ShutdownTests.ShutdownTestRun(String identifier, String shutDownMechanism)

This is distinct from the NativeAOT variant (#129961) which fails with PlatformNotSupportedException (Assembly.GetCallingAssembly not supported). The crossgen2 variant reaches process launch but the process exits before HasExited can be checked.

Error Message

{
  "ErrorMessage": ["[FAIL] Microsoft.AspNetCore.Hosting.FunctionalTests.ShutdownTests.ShutdownTestRun", "System.InvalidOperationException : No process is associated with this object."],
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

First build it occurred

• Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1478712
• Finished: 2026-06-24T08:27:38Z
• Preceding build 1476664 (June 23) did not have this leg failing.
• Confirmed in follow-up: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1485330
• Present in 6 consecutive builds: 1478712, 1480671, 1482489, 1484151, 1484682, 1485330.

Related issues

• [ci-scan] Test failure: ShutdownTests.ShutdownTestRun on NativeAOT (Assembly.GetCallingAssembly not supported) #129961 (NativeAOT variant — different exception: PlatformNotSupportedException)

Duplicate search

• ShutdownTests crossgen2 label:"Known Build Error" is:open — 0 results
• ShutdownTestRun "InvalidOperationException" label:"Known Build Error" is:open — 0 results
• ShutdownTests "No process is associated" is:issue is:open — 0 results
• "No process is associated" label:"Known Build Error" — 0 results
• Recently-closed: no matches

No existing KBE matches this crossgen2-specific 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.

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

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