Assert.Equal failure in SocketAsyncEventArgsTest.Connect_Parallel_FailsOver (got 127.0.0.1:59851)

[matouskozak]

Note: This issue was automatically generated by AI-Test-Triage. Please review and triage accordingly.

Build Information

Build: 20260129.1, 20260129.5

Build error leg or test failing: System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver, System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success, System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails

Affected CI jobs: build_tvOS_arm64_Release_AllSubsets_Mono

Causing Commit Range Information

Commit range: {TODO: Insert commit range or link to changes}

Summary

• Assert.Equal failure in SocketAsyncEventArgsTest.Connect_Parallel_FailsOver: Expected null, Actual 127.0.0.1:59851
• Job: build_tvOS_arm64_Release_AllSubsets_Mono; failing assembly: System.Net.Sockets.Tests
• Related test Connect_Parallel_Fails timed out with message 'Completed did not get called in time' (execution time ~30.00s)
• Connect_Parallel_Success also failed with System.InvalidOperationException: 'You must call the Bind method before performing this operation.' in Socket.AcceptAsync

Failure Statistics

Note: These statistics are based on the configured time range and might not reflect the full history of the failure.

• Occurrence Count: 8
• First Failure: 2026-01-29 13:02:39 UTC
• Last Failure: 2026-01-30 07:39:10 UTC

Work Items

Work Item	Console Log	Build	Job Name
System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver	View Extract [06:40:47.3989140] 2026-01-29 03:40:47.535 System.Net.Sockets.Tests[7659:5589543] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails [06:40:47.3990100] Completed did not get called in time [06:40:47.3990280] at System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails() ... [06:40:47.4664500] 2026-01-29 03:40:47.604 System.Net.Sockets.Tests[7659:5589620] [PASS] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver [06:40:47.4758460] 2026-01-29 03:40:47.613 System.Net.Sockets.Tests[7659:5589620] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(preferIPv6: False) [06:40:47.4759200] Assert.Equal() Failure: Values differ [06:40:47.4759340] Expected: null [06:40:47.4759440] Actual: 127.0.0.1:59851 [06:40:47.4776640] at System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(Boolean preferIPv6) ... [06:48:15.2854480] Execution time: 10.1276581 [06:48:15.2854540] 2026-01-29 03:48:15.331 System.Net.Sockets.Tests[7659:5593880] 7) [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails Test name: System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails [06:48:15.2863300] Execution time: 30.0050317 [06:48:15.2863460] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(preferIPv6: False) [06:48:15.2863550] Expected: null [06:48:15.2863640] Actual: 127.0.0.1:59851 ... [06:48:15.2872710] Exception messages: System.InvalidOperationException : You must call the Bind method before performing this operation. [06:48:15.2872710] Exception stack traces: at System.Net.Sockets.Socket.AcceptAsync(SocketAsyncEventArgs e, CancellationToken cancellationToken) Full Log	20260129.1	build_tvOS_arm64_Release_AllSubsets_Mono
System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success	View Extract [06:48:30] dbug: [06:40:47.4981120] 2026-01-29 03:40:47.636 System.Net.Sockets.Tests[7659:5589620] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success [06:48:30] dbug: [06:40:47.4981440] System.InvalidOperationException : You must call the Bind method before performing this operation. [06:48:30] dbug: [06:40:47.4981610] 2026-01-29 03:40:47.636 System.Net.Sockets.Tests[7659:5589620] at System.Net.Sockets.Socket.AcceptAsync(SocketAsyncEventArgs e, CancellationToken cancellationToken) [06:48:30] dbug: [06:40:47.4981790] at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.AcceptAsync(Socket socket, CancellationToken cancellationToken) [06:48:30] dbug: [06:40:47.4993920] 2026-01-29 03:40:47.636 System.Net.Sockets.Tests[7659:5589620] at System.Net.Sockets.Socket.AcceptAsync(Socket acceptSocket, CancellationToken cancellationToken) [06:48:30] dbug: [06:40:47.4994250] at System.Net.Sockets.Socket.AcceptAsync() [06:48:30] dbug: [06:40:47.4994400] at System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success() ... [06:48:30] dbug: [06:48:15.2863380] 2026-01-29 03:48:15.332 System.Net.Sockets.Tests[7659:5593880] 8) [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver Test name: System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(preferIPv6: False) [06:48:30] dbug: [06:48:15.2863550] Expected: null [06:48:30] dbug: [06:48:15.2863640] 2026-01-29 03:48:15.332 System.Net.Sockets.Tests[7659:5593880] Actual: 127.0.0.1:59851 Full Log	20260129.1	build_tvOS_arm64_Release_AllSubsets_Mono
System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails	View Extract [19:29:19.3779000] 2026-01-29 16:29:19.439 System.Net.Sockets.Tests[9726:6798613] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails [19:29:19.3779670] Completed did not get called in time [19:29:19.3779850] at System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails() [19:29:19.3827730] 2026-01-29 16:29:19.440 System.Net.Sockets.Tests[9726:6798613] at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args) ... [19:29:19.4466850] 2026-01-29 16:29:19.510 System.Net.Sockets.Tests[9726:6798701] Connect_Parallel_FailsOver [19:29:19.4555870] 2026-01-29 16:29:19.519 System.Net.Sockets.Tests[9726:6798701] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(preferIPv6: False) [19:29:19.4556450] Assert.Equal() Failure: Values differ [19:29:19.4556640] Expected: null [19:29:19.4556940] Actual: 127.0.0.1:54672 ... [19:36:12.9306110] 2026-01-29 16:36:13.021 System.Net.Sockets.Tests[9726:6802551] 7) [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails [19:36:12.9306420] Execution time: 30.0072197 Full Log	20260129.5	build_tvOS_arm64_Release_AllSubsets_Mono
System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver	View Extract [19:29:19.3779000] 2026-01-29 16:29:19.439 System.Net.Sockets.Tests[9726:6798613] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails [19:29:19.3779670] Completed did not get called in time [19:29:19.3779850] at System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails() ... [19:29:19.4466850] 2026-01-29 16:29:19.510 System.Net.Sockets.Tests[9726:6798701] [PASS] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver [19:29:19.4555870] 2026-01-29 16:29:19.519 System.Net.Sockets.Tests[9726:6798701] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(preferIPv6: False) [19:29:19.4556450] Assert.Equal() Failure: Values differ [19:29:19.4556640] Expected: null [19:29:19.4556940] Actual: 127.0.0.1:54672 [19:29:19.4557100] at System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(Boolean preferIPv6) ... [19:36:12.9315900] 2026-01-29 16:36:13.023 System.Net.Sockets.Tests[9726:6802551] 9) [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success Test name: System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success [19:36:12.9325720] 2026-01-29 16:36:13.023 System.Net.Sockets.Tests[9726:6802551] Exception messages: System.InvalidOperationException : You must call the Bind method before performing this operation. [19:36:12.9325720] Exception stack traces: at System.Net.Sockets.Socket.AcceptAsync(SocketAsyncEventArgs e, CancellationToken cancellationToken) Full Log	20260129.5	build_tvOS_arm64_Release_AllSubsets_Mono
System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success	View Extract [19:36:28] dbug: [19:29:19.4839680] 2026-01-29 16:29:19.548 System.Net.Sockets.Tests[9726:6798701] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success [19:36:28] dbug: [19:29:19.4840080] System.InvalidOperationException : You must call the Bind method before performing this operation. [19:36:28] dbug: [19:29:19.4853050] 2026-01-29 16:29:19.548 System.Net.Sockets.Tests[9726:6798701] at System.Net.Sockets.Socket.AcceptAsync(SocketAsyncEventArgs e, CancellationToken cancellationToken) [19:36:28] dbug: [19:29:19.4853390] at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.AcceptAsync(Socket socket, CancellationToken cancellationToken) [19:36:28] dbug: [19:29:19.4853560] 2026-01-29 16:29:19.548 System.Net.Sockets.Tests[9726:6798701] at System.Net.Sockets.Socket.AcceptAsync(Socket acceptSocket, CancellationToken cancellationToken) [19:36:28] dbug: [19:29:19.4853720] at System.Net.Sockets.Socket.AcceptAsync() [19:36:28] dbug: [19:29:19.4854080] at System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success() [19:36:28] dbug: [19:29:19.4854270] at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args) [19:36:28] dbug: [19:36:12.9315290] 2026-01-29 16:36:13.022 System.Net.Sockets.Tests[9726:6802551] 8) [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver Test name: System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(preferIPv6: False) [19:36:28] dbug: [19:36:12.9315650] Expected: null [19:36:28] dbug: [19:36:12.9315700] Actual: 127.0.0.1:54672 [19:36:28] dbug: [19:36:12.9325550] 2026-01-29 16:36:13.023 System.Net.Sockets.Tests[9726:6802551] 9) [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success Full Log	20260129.5	build_tvOS_arm64_Release_AllSubsets_Mono
System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails	View Extract [00:39:40.7905660] 2026-01-29 21:39:40.858 System.Net.Sockets.Tests[8103:5999365] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails [00:39:40.7906320] Completed did not get called in time [00:39:40.7906500] at System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails() [00:45:06.2323140] 2026-01-29 21:45:06.310 System.Net.Sockets.Tests[8103:6002966] 19) [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails Test name: System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails [00:45:06.2323510] Execution time: 30.0070192 [00:39:40.8711820] 2026-01-29 21:39:40.940 System.Net.Sockets.Tests[8103:5999461] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(preferIPv6: False) [00:39:40.8712380] Assert.Equal() Failure: Values differ [00:39:40.8712540] Expected: null [00:39:40.8712690] Actual: 127.0.0.1:57906 [00:39:40.8713030] at System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(Boolean preferIPv6) Full Log	20260129.5	build_tvOS_arm64_Release_AllSubsets_Mono
System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver	View Extract [00:39:40.7905660] 2026-01-29 21:39:40.858 System.Net.Sockets.Tests[8103:5999365] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails [00:39:40.7906320] Completed did not get called in time [00:39:40.7906500] at System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails() ... [00:39:40.8631850] 2026-01-29 21:39:40.932 System.Net.Sockets.Tests[8103:5999461] [PASS] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver [00:39:40.8711820] 2026-01-29 21:39:40.940 System.Net.Sockets.Tests[8103:5999461] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(preferIPv6: False) [00:39:40.8712380] Assert.Equal() Failure: Values differ [00:39:40.8712540] Expected: null [00:39:40.8712690] Actual: 127.0.0.1:57906 [00:39:40.8713030] at System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(Boolean preferIPv6) ... [00:45:06.2323140] 2026-01-29 21:45:06.310 System.Net.Sockets.Tests[8103:6002966] 19) [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails Test name: System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Fails [00:45:06.2323510] Execution time: 30.0070192 [00:45:06.2335070] 2026-01-29 21:45:06.311 System.Net.Sockets.Tests[8103:6002966] 20) [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver Test name: System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(preferIPv6: False) [00:45:06.2335220] Expected: null [00:45:06.2335280] Actual: 127.0.0.1:57906 [00:45:06.2355280] 2026-01-29 21:45:06.314 System.Net.Sockets.Tests[8103:6002966] 21) [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success [00:45:06.2355420] Exception messages: System.InvalidOperationException : You must call the Bind method before performing this operation. at System.Net.Sockets.Socket.AcceptAsync(SocketAsyncEventArgs e, CancellationToken cancellationToken) Full Log	20260129.5	build_tvOS_arm64_Release_AllSubsets_Mono
System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success	View Extract [00:45:21] dbug: [00:39:40.8951890] 2026-01-29 21:39:40.965 System.Net.Sockets.Tests[8103:5999461] [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success [00:45:21] dbug: [00:39:40.8952260] System.InvalidOperationException : You must call the Bind method before performing this operation. [00:45:21] dbug: [00:39:40.8952360] 2026-01-29 21:39:40.965 System.Net.Sockets.Tests[8103:5999461] at System.Net.Sockets.Socket.AcceptAsync(SocketAsyncEventArgs e, CancellationToken cancellationToken) [00:45:21] dbug: [00:39:40.8952440] at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.AcceptAsync(Socket socket, CancellationToken cancellationToken) [00:45:21] dbug: [00:39:40.8966740] 2026-01-29 21:39:40.965 System.Net.Sockets.Tests[8103:5999461] at System.Net.Sockets.Socket.AcceptAsync(Socket acceptSocket, CancellationToken cancellationToken) [00:45:21] dbug: [00:39:40.8967170] at System.Net.Sockets.Socket.AcceptAsync() [00:45:21] dbug: [00:39:40.8967390] at System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_Success() ... [00:45:21] dbug: [00:45:06.2323620] 2026-01-29 21:45:06.311 System.Net.Sockets.Tests[8103:6002966] 20) [FAIL] System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver Test name: System.Net.Sockets.Tests.SocketAsyncEventArgsTest.Connect_Parallel_FailsOver(preferIPv6: False) [00:45:21] dbug: [00:45:06.2335220] Expected: null [00:45:21] dbug: [00:45:06.2335280] 2026-01-29 21:45:06.311 System.Net.Sockets.Tests[8103:6002966] Actual: 127.0.0.1:57906 Full Log	20260129.5	build_tvOS_arm64_Release_AllSubsets_Mono

Error Message

{
  "ErrorMessage": [
    "Expected: null",
    "Actual:   127.0.0.1"
  ],
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Report

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	0	0

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Tagging subscribers to 'os-tvos': @vitek-karas, @kotlarmilos, @steveisok, @akoeplinger
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[liveans]

cc @wfurt

[wfurt]

seems tvOS specific. We should investigate.