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A Native Collection has not been disposed, resulting in a memory leak. Enable Full StackTraces to ge

Discussion in '2019.1 Beta' started by Carpet_Head, Feb 18, 2019.

  1. Carpet_Head

    Carpet_Head

    Joined:
    Nov 27, 2014
    Posts:
    254
    Code (CSharp):
    1. A Native Collection has not been disposed, resulting in a memory leak. Enable Full StackTraces to get more details.

    How do I enable Full Stacktraces? which Unity version supports this?
     
    Carpet_Head, Feb 18, 2019
    #1
    Shahadat01 and dan_ginovker like this.

  2. LeonhardP

    LeonhardP

    Unity Technologies

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    Jul 4, 2016
    Posts:
    3,106
    LeonhardP, Feb 18, 2019
    #2
    BeyondMASC likes this.

  3. Carpet_Head

    Carpet_Head

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    Nov 27, 2014
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    It doesn't seem to make any difference

    upload_2019-2-18_17-37-56.png
     
    Carpet_Head, Feb 18, 2019
    #3
    Neiist, adamgryu, dan_ginovker and 5 others like this.

  4. Carpet_Head

    Carpet_Head

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    to elaborate: we are looking to find bugs in code we wrote that is leaking native collections. It is a complex system so it is hard to track down the issues without seeing where the collections were created
     
    Carpet_Head, Feb 18, 2019
    #4
    RiverExplorer likes this.

  5. elcionap

    elcionap

    Joined:
    Jan 11, 2016
    Posts:
    138
    Menu Job/Leak Detection/Full Stack Traces (Expensive)
    I'm not sure about leaks before the activation so maybe you'll need to restart the editor after enabled.

    []'s
     
    elcionap, Feb 18, 2019
    #5
    koreanyo, Mehrdad995, PrimalCoder and 2 others like this.

  6. Carpet_Head

    Carpet_Head

    Joined:
    Nov 27, 2014
    Posts:
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    Thanks!

    I still couldn't find it - looks like you have to enable the Entities package explicitly to get this option. Burst and Collections are not enough on their own.
     
    Carpet_Head, Feb 19, 2019
    #6
    dan_ginovker likes this.

  7. scobi

    scobi

    Unity Technologies

    Joined:
    May 14, 2014
    Posts:
    32
    It's actually the com.unity.jobs package that provides this menu - but com.unity.entities uses it as a dependency, so bringing in Entities will also work.

    I'll write up a bug for us to make the situation better. It's obviously weird that you have to bring in a package to enable debugging something in the core. At minimum, we'll make it a more useful error message. Sorry for the trouble!
     
    scobi, Apr 26, 2019
    #7
    d_sharov, owlrazum, Mehrdad995 and 2 others like this.

  8. DropNodes

    DropNodes

    Joined:
    Jun 11, 2019
    Posts:
    39
    So enabling this stops the error message, but I don't see how to check if/where I have a memory leak
     
    DropNodes, Jun 23, 2019
    #8
    brandon_ling_games, dan_ginovker, mbrindic and 1 other person like this.

  9. scobi

    scobi

    Unity Technologies

    Joined:
    May 14, 2014
    Posts:
    32
    (Sorry I almost missed this reply.)

    Enabling "full stack traces" should not stop the error message, so I'm confused by this behavior change. All that option does is capture a stack trace on the construction of every object that can be leaked. If a leak is detected, this stack trace is dumped as part of the report.

    "Full stack traces" shouldn't have any effect on leak detection, just leak reporting detail.
     
    scobi, Jul 8, 2019
    #9
    byuki_, siyadeveloper, Mehrdad995 and 1 other person like this.