Test failure: System.Buffers.Tests.ArrayBufferWriterTests_Byte.GetMemory_ExceedMaximumBufferSize

[v-haren]

failed in job: runtime-libraries-coreclr outerloop 20201027.2

net6.0-Windows_NT-Release-x64-CoreCLR_release-(Windows.Server.Core.1909.Amd64.Open)windows.10.amd64.server20h1.open@mcr.microsoft.com/dotnet-buildtools/prereqs:windowsservercore-2004-helix-amd64-20200904200251-272704c

Error message

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


Stack trace
   at System.Array.Resize[T](T[]& array, Int32 newSize) in /_/src/libraries/System.Private.CoreLib/src/System/Array.cs:line 68
   at System.Buffers.ArrayBufferWriter`1.CheckAndResizeBuffer(Int32 sizeHint) in /_/src/libraries/Common/src/System/Buffers/ArrayBufferWriter.cs:line 199
   at System.Buffers.ArrayBufferWriter`1.GetMemory(Int32 sizeHint) in /_/src/libraries/Common/src/System/Buffers/ArrayBufferWriter.cs:line 133
   at System.Buffers.Tests.ArrayBufferWriterTests_Byte.GetMemory_ExceedMaximumBufferSize() in /_/src/libraries/System.Memory/tests/ArrayBufferWriter/ArrayBufferWriterTests.Byte.cs:line 109

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[danmoseley]

@steveharter you changed the code and test recently - could it be related? 035b729
#42950

[v-haren]

failed again in job: runtime-libraries-coreclr outerloop 20201206.1

failed test: System.Buffers.Tests.ArrayBufferWriterTests_Byte.GetMemory_ExceedMaximumBufferSize

net6.0-windows-Release-x64-CoreCLR_release-(Windows.Nano.1809.Amd64.Open)windows.10.amd64.serverrs5.open@mcr.microsoft.com/dotnet-buildtools/prereqs:nanoserver-1809-helix-amd64-08e8e40-20200107182504

Error message

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


Stack trace
   at System.Array.Resize[T](T[]& array, Int32 newSize) in /_/src/libraries/System.Private.CoreLib/src/System/Array.cs:line 68
   at System.Buffers.ArrayBufferWriter`1.CheckAndResizeBuffer(Int32 sizeHint) in /_/src/libraries/Common/src/System/Buffers/ArrayBufferWriter.cs:line 199
   at System.Buffers.ArrayBufferWriter`1.GetMemory(Int32 sizeHint) in /_/src/libraries/Common/src/System/Buffers/ArrayBufferWriter.cs:line 133
   at System.Buffers.Tests.ArrayBufferWriterTests_Byte.GetMemory_ExceedMaximumBufferSize() in /_/src/libraries/System.Memory/tests/ArrayBufferWriter/ArrayBufferWriterTests.Byte.cs:line 109

[steveharter]

The test assumes it can allocate ~2GB which apparently isn't always true.

[v-haren]

failed again in job: runtime-libraries-coreclr outerloop 20210106.2

failed test: System.Buffers.Tests.ArrayBufferWriterTests_Byte.GetMemory_ExceedMaximumBufferSize

net6.0-windows-Release-x64-CoreCLR_release-Windows.10.Amd64.ServerRS5.Open

Error message

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


Stack trace
   at System.Array.Resize[T](T[]& array, Int32 newSize) in /_/src/libraries/System.Private.CoreLib/src/System/Array.cs:line 68
   at System.Buffers.ArrayBufferWriter`1.CheckAndResizeBuffer(Int32 sizeHint) in /_/src/libraries/Common/src/System/Buffers/ArrayBufferWriter.cs:line 199
   at System.Buffers.ArrayBufferWriter`1.GetMemory(Int32 sizeHint) in /_/src/libraries/Common/src/System/Buffers/ArrayBufferWriter.cs:line 133
   at System.Buffers.Tests.ArrayBufferWriterTests_Byte.GetMemory_ExceedMaximumBufferSize() in /_/src/libraries/System.Memory/tests/ArrayBufferWriter/ArrayBufferWriterTests.Byte.cs:line 109