[release/10.0] Assert Interop.Sys.LSeek(this, 0, Interop.Sys.SeekWhence.SEEK_CUR) >= 0 in System.Net.XXX tests

[ericstj]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1211439
Build error leg or test failing: System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed
Pull request: #121366

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": "Interop.Sys.LSeek(this, 0, Interop.Sys.SeekWhence.SEEK_CUR) >= 0",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Most likely the same as #120577 but the fix might be missing from the release/10.0 branch. @rzikm

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1211439
Error message validated: [Interop.Sys.LSeek(this, 0, Interop.Sys.SeekWhence.SEEK_CUR) >= 0]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 11/24/2025 11:07:10 PM UTC

Report

Build	Definition	Test	Pull Request
1219781	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#122166
1219638	dotnet/runtime	System.Net.Quic.Functional.Tests.WorkItemExecution
1219633	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed
1219595	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121366
1219086	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121366
1218736	dotnet/runtime	System.Net.Quic.Functional.Tests.WorkItemExecution
1218322	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121934
1217806	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121656
1217798	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121366
1217731	dotnet/runtime	System.Net.Quic.Functional.Tests.WorkItemExecution
1217725	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed
1216433	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121366
1213758	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#120712
1216399	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121968
1215990	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121694
1213753	dotnet/runtime	System.Net.Quic.Functional.Tests.WorkItemExecution
1213748	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed
1213708	dotnet/runtime	System.Net.Quic.Functional.Tests.WorkItemExecution	#121908
1212474	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121366
1213699	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed
1212888	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121968
1211960	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121944
1211800	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121366
1211585	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121934
1211485	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121343
1211439	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121366
1211408	dotnet/runtime	System.Net.Http.Tests.HttpWindowsProxyTest.HttpProxy_Local_Bypassed	#121928

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	15	27

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