Search Issue Tracker

Fixed in Unity 2017.3.0f3



Found in


Issue ID




JobTempAlloc error appears in Standalone Build output log if trees are in the Scene




Priority: 3Not yet prioritized for a release


Severity: 3Secondary functionality broken

Reproduction Steps:
1. Import attached project.
2. Open Test scene.
3. Build and Run.
4. In Standalone Build Data files, open output.log.

Expected result: Allocator errors should not be shown.
Actual result: The following error appears:
"Internal: JobTempAlloc has allocations that are more than 4 frames old - this is not allowed and likely a leak"

Note #1: If trees are removed from terrain, the error no longer appears.
Note #2: No obvious memory leak is detected.

Reproducible with: 5.5.3f1, 5.6.0f3, 2017.1.0p2

Comments (82)

  1. D9d1665e889d7c301a1116ebde9ba137?d=mm


    Jul 06, 2017 21:24

    5.6.2p2 - still happens

  2. D9d1665e889d7c301a1116ebde9ba137?d=mm


    Jul 03, 2017 14:23

    Version 5.6.2p1 - problem still exists.

  3. 4351e8fc3dcf593b48740168f5e9e910?d=mm


    Jun 26, 2017 12:28

    it hit's GPU so much. and also I have no trees or terrain whatsoever. version 5.6.1f1

  4. E0171497375b97cc0bf3693b004fea62?d=mm


    Jun 21, 2017 23:03

    I've also just noticed that I'm getting this issue, version 5.6.1f1

  5. D2e386df833ca1b97f243cc0c7f70ea7?d=mm


    Jun 08, 2017 00:12

    I found a case where a particle system can become corrupted in a way that causes this warning to spew every frame. I submitted a bug with very simple project where the problem happens 100% of the time, so hopefully that will help. Will update with the tracking number when it shows up on issue tracker. (no trees involved in this case)

  6. E8cb935688bc1bd2390c754664fe879d?d=mm


    Jun 07, 2017 12:36

    Note: this is not just in win32 builds, any windows build (win64 confirmed)

    I really don't get why Unity gives a 2017 beta prio over outstanding issues on the stable builds, they seem to greatly underestimate the impact of this bug.

  7. Fc629b042434bf71b9a4ae9e533d574d?d=mm


    May 30, 2017 15:24

    This really hurts our performance and makes the output logs unreadable.

  8. 5576e30eb3b352b80cf4d1628ff2a286?d=mm


    May 24, 2017 01:27

    We have this bug in 5.6.1p1 with no trees in our scene.

  9. 2a2e240c722f11a980d9ab4b31f8bb31?d=mm


    May 23, 2017 13:51

    Unity 5.6.1p1 has this bug.

  10. C6e450a3b8c08aa027fb7509ee4827da?d=mm


    May 20, 2017 17:44

    Have the same problem.

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.