MattWhilden

The other rhbind crashes we’ve seen of this type are generally OutOfMemory errors during final PDB generation. Essentially, the 32 bit address spaces available to RhBind just doesn't contain a big enough block for the PDB being generated. 300-800MB PDBs are not super uncommon.

We'd certainly like a more holistic solution to this issue (64 bit version of this tool, streamed writting of pdb, better early analysis to reduce overall compiler pressure etc) but that doesn't help customers currently impacted. I've laid out some essential reading followed by strategies that should help some folks get unblocked in the time being. The strategies outlined below focus on reducing the amount of infromation heading through the compiler.

If you have questions or success with this approach, please feel free to reach out to us at dotnetnative@microsoft.com.
 
Docs worth at least skimming to get the idea of: 
	· https://devblogs.microsoft.com/dotnet/net-native-deep-dive-dynamic-features-in-static-code/ 
	· https://docs.micro

MattWhilden

1.	Copy this wprp file to the an impacted machine: https://gist.github.com/MattWhilden/5b844d89c821be6426ecead8ba4217f7
2.	Download WPR (Windows Performance Recorder) - included in the Windows ADK: https://go.microsoft.com/fwlink/p/?LinkId=526740
3.	Reboot the machine.
4.	Start an elevated command prompt.
5.	wpr -start <path to WindowsNetworkingBackgroundTransfer.wprp>
6.	Launch the app and let it run for a couple of minutes, confirming that the bad behavior is occurring (if possible).
7.	wpr -stop BackgroundTransfer.etl
8.	Share BackgroundTransfer.etl with us.

MattWhilden

<?xml version="1.0" encoding="utf-8"?>
<!--
  WPR Profile for manual capture and analysis using WPR and WPA
  NOTE: This is provided as a convenience and is not consumed by the builds
-->
<WindowsPerformanceRecorder Version="1.0" Author="Microsoft Corporation" Copyright="Microsoft Corporation" Company="Microsoft Corporation">
  <Profiles>
    <EventCollector Id="EventCollector_WindowsNetworkingBackgroundTransfer" Name="WindowsNetworkingBackgroundTransferCollector">
      <BufferSize Value="64" />
      <Buffers Value="4" />

MattWhilden

<!--
***********************************************************************************************
Microsoft.NetNative.targets

WARNING:  DO NOT MODIFY this file unless you are knowledgeable about MSBuild and have
          created a backup copy.  Incorrect changes to this file will make it
          impossible to load or build your projects from the command-line or the IDE.

Copyright (C) Microsoft Corporation. All rights reserved.
***********************************************************************************************

MattWhilden

<!--
***********************************************************************************************
Microsoft.NetNative.targets

WARNING:  DO NOT MODIFY this file unless you are knowledgeable about MSBuild and have
          created a backup copy.  Incorrect changes to this file will make it
          impossible to load or build your projects from the command-line or the IDE.

Copyright (C) Microsoft Corporation. All rights reserved.
***********************************************************************************************

MattWhilden

<!--
***********************************************************************************************
Microsoft.NetNative.targets

WARNING:  DO NOT MODIFY this file unless you are knowledgeable about MSBuild and have
          created a backup copy.  Incorrect changes to this file will make it
          impossible to load or build your projects from the command-line or the IDE.

Copyright (C) Microsoft Corporation. All rights reserved.
***********************************************************************************************