Test failure: System.PrivateUri.Tests.IriTest.Iri_UnicodePlane3_13

[VincentBu]

Failed in: runtime-coreclr libraries-jitstress 20260212.1

Failed tests:

net11.0-windows-Release-x86-jitstress2-Windows.10.Amd64.Open
- System.PrivateUri.Tests.IriTest.Iri_UnicodePlane3_13

Error message:

System.OutOfMemoryException : Exception of type 'System.OutOfMemoryException' was thrown.

Stack trace:

   at System.GC.<AllocateUninitializedArray>g__AllocateNewArrayWorker|77_0[T](Int32 length, Boolean pinned) in /_/src/coreclr/System.Private.CoreLib/src/System/GC.CoreCLR.cs:line 831
   at System.Buffers.SharedArrayPool`1.Rent(Int32 minimumLength) in /_/src/libraries/System.Private.CoreLib/src/System/Buffers/SharedArrayPool.cs:line 107
   at System.Text.ValueStringBuilder.Grow(Int32 additionalCapacityBeyondPos) in /_/src/libraries/Common/src/System/Text/ValueStringBuilder.cs:line 265
   at System.UriHelper.EscapeStringToBuilder(ReadOnlySpan`1 stringToEscape, ValueStringBuilder& vsb, SearchValues`1 noEscape, Boolean checkExistingEscaped) in /_/src/libraries/System.Private.Uri/src/System/UriHelper.cs:line 276
   at System.Uri.GetCanonicalPath(ValueStringBuilder& dest, UriFormat formatAs) in /_/src/libraries/System.Private.Uri/src/System/Uri.cs:line 4202
   at System.Uri.RecreateParts(ValueStringBuilder& dest, String str, UriComponents parts, UInt16 nonCanonical, UriFormat formatAs) in /_/src/libraries/System.Private.Uri/src/System/Uri.cs:line 2893
   at System.Uri.RecreateParts(UriComponents parts, UInt16 nonCanonical, UriFormat formatAs) in /_/src/libraries/System.Private.Uri/src/System/Uri.cs:line 2729
   at System.Uri.GetEscapedParts(UriComponents uriParts) in /_/src/libraries/System.Private.Uri/src/System/Uri.cs:line 2681
   at System.Uri.GetComponentsHelper(UriComponents uriComponents, UriFormat uriFormat) in /_/src/libraries/System.Private.Uri/src/System/UriExt.cs:line 869
   at System.Uri.InternalGetComponents(UriComponents components, UriFormat format) in /_/src/libraries/System.Private.Uri/src/System/UriExt.cs:line 317
   at System.Uri.get_AbsoluteUri() in /_/src/libraries/System.Private.Uri/src/System/Uri.cs:line 777
   at System.PrivateUri.Tests.IriTest.EscapeUnescapeTestComponent(String uriInput, UriComponents component) in /_/src/libraries/System.Private.Uri/tests/FunctionalTests/IriTest.cs:line 383
   at System.PrivateUri.Tests.IriTest.VerifyUriNormalizationForEscapedCharacters(String uriInput) in /_/src/libraries/System.Private.Uri/tests/FunctionalTests/IriTest.cs:line 311
   at System.PrivateUri.Tests.IriTest.Iri_UnicodePlane3_13() in /_/src/libraries/System.Private.Uri/tests/FunctionalTests/IriTest.cs:line 244
   at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args) in /_/src/coreclr/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.CoreCLR.cs:line 36
   at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodBaseInvoker.cs:line 57

{
  "ErrorMessage": "[FAIL] System.PrivateUri.Tests.IriTest.Iri_UnicodePlane3_13",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

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[MihaZupan]

Any reason to believe this is due to a codegen issue?
Seeing 32bit, one guess would be that this is due to the test allocating ~200 MB, not sure how memory starved this setup is.

[jakobbotsch]

Any reason to believe this is due to a codegen issue? Seeing 32bit, one guess would be that this is due to the test allocating ~200 MB, not sure how memory starved this setup is.

No, this failed in my PR #124683 runtime-nativeaot-outerloop too. Does not seem like a codegen issue. Fails locally intermittently for me too on x86.

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