Bug 55016 - Mono 5.0 in XS/VS not compatible with Fody - out of memory exception when building
Summary: Mono 5.0 in XS/VS not compatible with Fody - out of memory exception when bui...
Alias: None
Product: Compilers
Classification: Mono
Component: C# ()
Version: unspecified
Hardware: PC Mac OS
: --- normal
Target Milestone: ---
Assignee: Marek Safar
Depends on:
Reported: 2017-04-11 10:56 UTC by Stefan de Vogelaere
Modified: 2017-04-11 11:15 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

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Description Stefan de Vogelaere 2017-04-11 10:56:00 UTC
The 5.0 version of mono used in the latest preview release of Visual Studio for Mac and Xamarin Studio is incompatible with Fody (https://github.com/Fody/Fody). When using this the compiler runs out of memory:

Error: Fody: An unhandled exception occurred:
Out of memory
  at (wrapper alloc) System.Object:AllocVector (intptr,intptr)
  at Microsoft.Cci.Pdb.MsfDirectory..ctor (Microsoft.Cci.Pdb.PdbReader reader, Microsoft.Cci.Pdb.PdbFileHeader head, Microsoft.Cci.Pdb.BitAccess bits) [0x000a5] in <d39e61ae2787473a851567b860d13696>:0 
  at Microsoft.Cci.Pdb.PdbFile.LoadFunctions (System.IO.Stream read, System.Collections.Generic.Dictionary`2[System.UInt32,Microsoft.Cci.Pdb.PdbTokenLine]& tokenToSourceMapping, System.String& sourceServerData, System.Int32& age, System.Guid& guid) [0x00027] in <d39e61ae2787473a851567b860d13696>:0 
  at Mono.Cecil.Pdb.PdbReader.PopulateFunctions () [0x00008] in <d39e61ae2787473a851567b860d13696>:0 
  at Mono.Cecil.Pdb.PdbReader.ProcessDebugHeader (Mono.Cecil.Cil.ImageDebugDirectory directory, System.Byte[] header) [0x00048] in <d39e61ae2787473a851567b860d13696>:0 
  at Mono.Cecil.ModuleDefinition.ProcessDebugHeader () [0x00012] in <b5a52cab1f0046ce9f68342127787868>:0 
  at Mono.Cecil.ModuleDefinition.ReadSymbols (Mono.Cecil.Cil.ISymbolReader reader) [0x00015] in <b5a52cab1f0046ce9f68342127787868>:0 
  at Mono.Cecil.ModuleReader.ReadSymbols (Mono.Cecil.ModuleDefinition module, Mono.Cecil.ReaderParameters parameters) [0x00047] in <b5a52cab1f0046ce9f68342127787868>:0 
  at Mono.Cecil.ModuleReader.CreateModuleFrom (Mono.Cecil.PE.Image image, Mono.Cecil.ReaderParameters parameters) [0x00076] in <b5a52cab1f0046ce9f68342127787868>:0 
  at Mono.Cecil.ModuleDefinition.ReadModule (System.IO.Stream stream, Mono.Cecil.ReaderParameters parameters) [0x00028] in <b5a52cab1f0046ce9f68342127787868>:0 
  at Mono.Cecil.ModuleDefinition.ReadModule (System.String fileName, Mono.Cecil.ReaderParameters parameters) [0x0000a] in <b5a52cab1f0046ce9f68342127787868>:0 
  at InnerWeaver.ReadModule () [0x00052] in <f6f9069078364b4db60945017a527c4a>:0 
  at InnerWeaver.Execute () [0x00019] in <f6f9069078364b4db60945017a527c4a>:0 
 ([Solution's Name])

Current solution is to revert to 4.8 in XS/VSforMac.
Comment 1 Marek Safar 2017-04-11 11:15:47 UTC
This is Mono.Cecil bug, please report the issue at https://github.com/jbevain/cecil/issues