MsQuic fails with QUIC_STATUS_OUT_OF_MEMORY on AzureLinux

[rzikm]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1254154
Build error leg or test failing: System.Net.Http.Functional.Tests.Http3ResponseStreamZeroByteReadTest.ZeroByteRead_BlocksUntilDataIsAvailable
Pull request: #123091

Error Message

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

{
  "ErrorMessage": "System.Net.Quic.QuicException : An internal error has occurred. RegistrationOpen failed: QUIC_STATUS_OUT_OF_MEMORY",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

   at System.Net.Quic.ThrowHelper.ThrowMsQuicException(Int32 status, String message) in /_/src/libraries/System.Net.Quic/src/System/Net/Quic/Internal/ThrowHelper.cs:line 144
   at System.Net.Quic.MsQuicApi..ctor(QUIC_API_TABLE* apiTable) in /_/src/libraries/System.Net.Quic/src/System/Net/Quic/Internal/MsQuicApi.cs:line 50
   at System.Net.Quic.MsQuicApi.AllocateMsQuicApi() in /_/src/libraries/System.Net.Quic/src/System/Net/Quic/Internal/MsQuicApi.cs:line 235
   at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode) in /_/src/libraries/System.Private.CoreLib/src/System/Lazy.cs:line 321
--- End of stack trace from previous location ---
   at System.Lazy`1.CreateValue() in /_/src/libraries/System.Private.CoreLib/src/System/Lazy.cs:line 429
   at System.Net.Quic.MsQuicApi.get_Api() in /_/src/libraries/System.Net.Quic/src/System/Net/Quic/Internal/MsQuicApi.cs:line 57
   at System.Net.Quic.QuicListener..ctor(QuicListenerOptions options) in /_/src/libraries/System.Net.Quic/src/System/Net/Quic/QuicListener.cs:line 127
   at System.Net.Quic.QuicListener.ListenAsync(QuicListenerOptions options, CancellationToken cancellationToken) in /_/src/libraries/System.Net.Quic/src/System/Net/Quic/QuicListener.cs:line 63
   at System.Net.Test.Common.Http3LoopbackServer..ctor(Http3Options options) in /_/src/libraries/Common/tests/System/Net/Http/Http3LoopbackServer.cs:line 57
   at System.Net.Test.Common.Http3LoopbackServerFactory.CreateServer(GenericLoopbackOptions options) in /_/src/libraries/Common/tests/System/Net/Http/Http3LoopbackServer.cs:line 109
   at System.Net.Test.Common.Http3LoopbackServerFactory.CreateServerAsync(Func`3 funcAsync, Int32 millisecondsTimeout, GenericLoopbackOptions options) in /_/src/libraries/Common/tests/System/Net/Http/Http3LoopbackServer.cs:line 114
   at System.Net.Http.Functional.Tests.ResponseStreamZeroByteReadTestBase.ZeroByteRead_BlocksUntilDataIsAvailable(Boolean async) in /_/src/libraries/System.Net.Http/tests/FunctionalTests/ResponseStreamZeroByteReadTests.cs:line 204
--- End of stack trace from previous location ---

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1254154
Error message validated: [System.Net.Quic.QuicException : An internal error has occurred. RegistrationOpen failed: QUIC_STATUS_OUT_OF_MEMORY]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 1/15/2026 2:21:33 PM UTC

Report

Build	Definition	Test	Pull Request
1295389	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.WaitForReadsClosedAsync_ServerReadAborted_Throws	#124440
1294877	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.ReadOutstanding_ReadAborted_Throws	#124415
1293750	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.WriteAsync_LocalAbort_Throws	#124387
1294357	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.ReadOutstanding_ReadAborted_Throws	#124408
1294232	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.WriteAsync_LocalAbort_Throws	#124303
1294187	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.WaitForReadsClosedAsync_ServerReadAborted_Throws	#123921
1294160	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.WaitForReadsClosedAsync_ServerReadAborted_Throws	#124403
1294134	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.WriteAsync_LocalAbort_Throws	#124232
1294059	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.WaitForReadsClosedAsync_ServerReadAborted_Throws	#119432
1294070	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.WaitForReadsClosedAsync_ServerReadAborted_Throws	#124296
1294033	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.WaitForReadsClosedAsync_ServerReadAborted_Throws
1293995	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.WriteAsync_LocalAbort_Throws	#124394
2901253	dotnet-runtime	System.Net.Quic.Tests.QuicStreamTests.WaitForReadsClosedAsync_ServerReadAborted_Throws
2901226	dotnet-runtime	System.Net.Quic.Tests.QuicStreamTests.WriteAsync_LocalAbort_Throws
2901173	dotnet-runtime	System.Net.Quic.Tests.QuicStreamTests.WriteAsync_LocalAbort_Throws
2894058	dotnet-runtime	System.Net.Quic.Tests.QuicStreamTests.WriteAsync_LocalAbort_Throws
2893483	dotnet-runtime	System.Net.Quic.Tests.QuicStreamTests.WaitForReadsClosedAsync_ConnectionClosed_Throws
1274864	dotnet/runtime	System.Net.Quic.Tests.QuicStreamTests.WaitForReadsClosedAsync_ClientCompleteWrites_Success	#123839

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	15	18

[dotnet-policy-service]

Tagging subscribers to this area: @karelz, @dotnet/ncl
See info in area-owners.md if you want to be subscribed.

[ManickaP]

This is once again problem with AzL3. Downgrade of SymCrypt-OpenSSL from 1.9.4 to 1.9.3 will help. We need to update the helix docker images to pin that package to 1.9.3 for the time being.

I have internally contacted responsible people from AzL3, so it's in the process.

[ManickaP]

This has stopped occurring since dotnet/dotnet-buildtools-prereqs-docker#1576.
We need to remove the downgrade in the docker images once it gets fixed in SymCrypt, so keeping this open.

KQL query:

AzureDevOpsTests
| where Message contains "RegistrationOpen failed: QUIC_STATUS_OUT_OF_MEMORY"
| order by RunCompleted desc
| take 100