Regression: System.Reflection.Metadata.Tests.MetadataReaderTests.CanReadFromSameMemoryMappedPEReaderInParallel

[mmitche]

From: http://dotnet-ci.cloudapp.net/view/All/job/dotnet_corefx_outerloop/491/testReport/junit/System.Reflection.Metadata.Tests/MetadataReaderTests/CanReadFromSameMemoryMappedPEReaderInParallel/

MESSAGE:
System.AggregateException : One or more errors occurred. ---- System.BadImageFormatException : Invalid COR20 header signature. ---- System.BadImageFormatException : Invalid COR20 header signature.
+++++++++++++++++++
STACK TRACE:
at System.Threading.Tasks.TaskReplicator.Run[TState](ReplicatableUserAction1 action, ParallelOptions options, Boolean stopOnFirstFailure) at System.Threading.Tasks.Parallel.ForWorker[TLocal](Int32 fromInclusive, Int32 toExclusive, ParallelOptions parallelOptions, Action1 body, Action2 bodyWithState, Func4 bodyWithLocal, Func1 localInit, Action1 localFinally) --- End of stack trace from previous location where exception was thrown --- at System.Threading.Tasks.Parallel.ThrowSingleCancellationExceptionOrOtherException(ICollection exceptions, CancellationToken cancelToken, Exception otherException) at System.Threading.Tasks.Parallel.ForWorker[TLocal](Int32 fromInclusive, Int32 toExclusive, ParallelOptions parallelOptions, Action1 body, Action2 bodyWithState, Func4 bodyWithLocal, Func1 localInit, Action1 localFinally) at System.Threading.Tasks.Parallel.For(Int32 fromInclusive, Int32 toExclusive, Action1 body) at System.Reflection.Metadata.Tests.MetadataReaderTests.CanReadFromSameMemoryMappedPEReaderInParallel() in d:\j\workspace\dotnet_corefx_outerloop\src\System.Reflection.Metadata\tests\Metadata\MetadataReaderTests.cs:line 2457 ----- Inner Stack Trace dotnet/coreclr#1 (System.BadImageFormatException) ----- at System.Reflection.Metadata.MetadataReader.ReadMetadataHeader(BlobReader& memReader) in d:\j\workspace\dotnet_corefx_outerloop\src\System.Reflection.Metadata\src\System\Reflection\Metadata\MetadataReader.cs:line 170 at System.Reflection.Metadata.MetadataReader..ctor(Byte* metadata, Int32 length, MetadataReaderOptions options, MetadataStringDecoder utf8Decoder) in d:\j\workspace\dotnet_corefx_outerloop\src\System.Reflection.Metadata\src\System\Reflection\Metadata\MetadataReader.cs:line 97 at System.Reflection.Metadata.PEReaderExtensions.GetMetadataReader(PEReader peReader, MetadataReaderOptions options, MetadataStringDecoder utf8Decoder) in d:\j\workspace\dotnet_corefx_outerloop\src\System.Reflection.Metadata\src\System\Reflection\Metadata\PEReaderExtensions.cs:line 71 at System.Reflection.Metadata.PEReaderExtensions.GetMetadataReader(PEReader peReader) in d:\j\workspace\dotnet_corefx_outerloop\src\System.Reflection.Metadata\src\System\Reflection\Metadata\PEReaderExtensions.cs:line 47 at System.Reflection.Metadata.Tests.MetadataReaderTests.<>c__DisplayClass2c.b__2a(Int32 _) in d:\j\workspace\dotnet_corefx_outerloop\src\System.Reflection.Metadata\tests\Metadata\MetadataReaderTests.cs:line 2457 at System.Threading.Tasks.Parallel.<>c__DisplayClass81.<ForWorker>b__10(RangeWorker& currentWorker, Int32 timeout, Boolean& replicationDelegateYieldedBeforeCompletion) --- End of stack trace from previous location where exception was thrown --- at System.Threading.Tasks.Parallel.<>c__DisplayClass81.b__10(RangeWorker& currentWorker, Int32 timeout, Boolean& replicationDelegateYieldedBeforeCompletion) at System.Threading.Tasks.TaskReplicator.Replica1.ExecuteAction(Boolean& yieldedBeforeCompletion) at System.Threading.Tasks.TaskReplicator.Replica.Execute() ----- Inner Stack Trace dotnet/coreclr#2 (System.BadImageFormatException) ----- at System.Reflection.Metadata.MetadataReader.ReadMetadataHeader(BlobReader& memReader) in d:\j\workspace\dotnet_corefx_outerloop\src\System.Reflection.Metadata\src\System\Reflection\Metadata\MetadataReader.cs:line 170 at System.Reflection.Metadata.MetadataReader..ctor(Byte\* metadata, Int32 length, MetadataReaderOptions options, MetadataStringDecoder utf8Decoder) in d:\j\workspace\dotnet_corefx_outerloop\src\System.Reflection.Metadata\src\System\Reflection\Metadata\MetadataReader.cs:line 97 at System.Reflection.Metadata.PEReaderExtensions.GetMetadataReader(PEReader peReader, MetadataReaderOptions options, MetadataStringDecoder utf8Decoder) in d:\j\workspace\dotnet_corefx_outerloop\src\System.Reflection.Metadata\src\System\Reflection\Metadata\PEReaderExtensions.cs:line 71 at System.Reflection.Metadata.PEReaderExtensions.GetMetadataReader(PEReader peReader) in d:\j\workspace\dotnet_corefx_outerloop\src\System.Reflection.Metadata\src\System\Reflection\Metadata\PEReaderExtensions.cs:line 47 at System.Reflection.Metadata.Tests.MetadataReaderTests.<>c__DisplayClass2c.<CanReadFromSameMemoryMappedPEReaderInParallel>b__2a(Int32 _) in d:\j\workspace\dotnet_corefx_outerloop\src\System.Reflection.Metadata\tests\Metadata\MetadataReaderTests.cs:line 2457 at System.Threading.Tasks.Parallel.<>c__DisplayClass81.b__10(RangeWorker& currentWorker, Int32 timeout, Boolean& replicationDelegateYieldedBeforeCompletion) --- End of stack trace from previous location where exception was thrown --- at System.Threading.Tasks.Parallel.<>c__DisplayClass81.<ForWorker>b__10(RangeWorker& currentWorker, Int32 timeout, Boolean& replicationDelegateYieldedBeforeCompletion) at System.Threading.Tasks.TaskReplicator.Replica1.ExecuteAction(Boolean& yieldedBeforeCompletion) at System.Threading.Tasks.TaskReplicator.Replica.Execute()

[stephentoub]

Dup of https://github.com/dotnet/corefx/issues/1050

[mmitche]

Closed as dupe.