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Burst crashes on an AMD Phenom II

Discussion in 'Data Oriented Technology Stack' started by sebas77, Aug 14, 2019.

  1. sebas77

    sebas77

    Joined:
    Nov 4, 2011
    Posts:
    1,155
    since @xoofx is enjoying his holidays, I am opening this thread as a reminder :)

    one of our users experiences hard crashes on his PhenomII. The dump files should help.
     

    Attached Files:

    sheredom likes this.
  2. Lee_Hammerton

    Lee_Hammerton

    Unity Technologies

    Joined:
    Jul 26, 2018
    Posts:
    50
    If you can switch to a burst version below the 1.1.x series, then this will work around the broken cpu detection which is causing issues like this, otherwise, we have a fix, but still no eta on a new package.
     
    sebas77 likes this.
  3. davenirline

    davenirline

    Joined:
    Jul 7, 2010
    Posts:
    599
    We tried to downgrade to 1.0.4 but we're getting this compile error:

    Library\PackageCache\com.unity.burst@1.0.4\Editor\BurstAotCompiler.cs(638,32): error CS7036: There is no argument given that corresponds to the required formal parameter 'exceptionType' of 'BuildReport.AddMessage(LogType, string, string)

    I'm using Unity 2019.2.1. Is there any way that we can fix this?

    Edit: I hacked BurstAotCompiler. Changed the following line:
    Code (CSharp):
    1. // From this
    2. report.AddMessage(LogType.Error, errorMessageBuilder.ToString());
    3.  
    4. // To this
    5. report.AddMessage(LogType.Error, errorMessageBuilder.ToString(), "Don't know what to specify here");
     
  4. davenirline

    davenirline

    Joined:
    Jul 7, 2010
    Posts:
    599
    Unfortunately, I'm now getting these errors:

    Unexpected exception System.IO.FileNotFoundException: Could not load file or assembly 'Smash, Version=0.3.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies.
    File name: 'Smash, Version=0.3.0.0, Culture=neutral, PublicKeyToken=null'
    at Burst.Compiler.IL.Jit.JitCompiler+CachedMethodKey..ctor (System.String methodFullName, Burst.Compiler.IL.Jit.JitOptions options) [0x00007] in <3179d4839c86430ca331f2949f40ede5>:0
    at Burst.Compiler.IL.Jit.JitCompiler.CompileMethod (Mono.Cecil.MethodReference methodReference, Burst.Compiler.IL.Jit.JitOptions jitOptions) [0x0001f] in <3179d4839c86430ca331f2949f40ede5>:0
    at Burst.Compiler.IL.Jit.JitCompilerService.Compile (Burst.Compiler.IL.Jit.JitCompilerService+CompileJob job) [0x002ce] in <3179d4839c86430ca331f2949f40ede5>:0

    While compiling job: System.Void Unity.Jobs.IJobParallelForExtensions/ParallelForJobStruct`1<Unity.Entities.GatherChunks>::Execute(T&,System.IntPtr,System.IntPtr,Unity.Jobs.LowLevel.Unsafe.JobRanges&,System.Int32)
     
    Last edited: Aug 21, 2019
    sebas77 likes this.
  5. Lee_Hammerton

    Lee_Hammerton

    Unity Technologies

    Joined:
    Jul 26, 2018
    Posts:
    50
    Temporary workaround would be to comment out the above line in the package. this should remove that blocker.
     
    davenirline likes this.
  6. Lee_Hammerton

    Lee_Hammerton

    Unity Technologies

    Joined:
    Jul 26, 2018
    Posts:
    50
    restart unity.
     
    davenirline likes this.
  7. sebas77

    sebas77

    Joined:
    Nov 4, 2011
    Posts:
    1,155
    thanks, I will try 1.0.4
     
  8. sebas77

    sebas77

    Joined:
    Nov 4, 2011
    Posts:
    1,155
    I don't think this can be done successfully with a workaround. Modifying local code would imply that I should create my own local version of burst to share the change with my colleagues, however this would mean, as far as I understand, that other unity packages will not find the burst dependency anymore.
     
  9. eizenhorn

    eizenhorn

    Joined:
    Oct 17, 2016
    Posts:
    1,939
    You only should move burst from package cache to Packages folder (where manifest.json) other packages will find dependency correct.
     
    June1111 and sebas77 like this.
  10. sebas77

    sebas77

    Joined:
    Nov 4, 2011
    Posts:
    1,155
    that worked thank you!
     
  11. sebas77

    sebas77

    Joined:
    Nov 4, 2011
    Posts:
    1,155
    it seems there are problems, but we are testing more

    com.unity.physics@0.1.0-preview\Unity.Physics\Collision\Colliders\Physics_TerrainCollider.cs(225,24): error: Unexpected error while processing instruction IL_003c: call System.Void Unity.Mathematics.int4::.ctor(System.Int32,System.Int32,System.Int32,System.Int32) args(IL_003c, IL_000b, IL_0019, IL_002a, IL_003b). Reason: The argument System.Int16 for the constructor IL_003c: call System.Void Unity.Mathematics.int4::.ctor(System.Int32,System.Int32,System.Int32,System.Int32) args(IL_003c, IL_000b, IL_0019, IL_002a, IL_003b) is not supported by burst

    edit: it seems it was an one off issue, keeping an eye on it
     
    Last edited: Aug 22, 2019
  12. sebas77

    sebas77

    Joined:
    Nov 4, 2011
    Posts:
    1,155
    The compiling error seems to pop up randomly, therefore there is something wrong I am not sure I can rely on the downgrade.

    Edit: for safety we are going to upgrade again, hence the Phenom issue is still open for us.
     
    Last edited: Aug 23, 2019
  13. xoofx

    xoofx

    Unity Technologies

    Joined:
    Nov 5, 2016
    Posts:
    286
    We will release a preview version (1.1.3-preview.1) today or tomorrow that should fix the issue for Phenom
     
    sebas77 likes this.
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