Details
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Bug
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Resolution: Done
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P2: Important
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None
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5.9.0, 5.9.1
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None
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Qt 5.9.1-0-20170629 prebuilt binaries for Linux 64bits (also tested on 5.9.0)
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Sandybridge Mobile
OpenGL core profile version string: 3.3 (Core Profile) Mesa 17.1.3
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
Linux 4.11.8-1-default #1 SMP PREEMPT Thu Jun 29 14:37:33 UTC 2017 (42bd7a0) x86_64 x86_64 x86_64 GNU/LinuxQt 5.9.1-0-20170629 prebuilt binaries for Linux 64bits (also tested on 5.9.0) OpenGL vendor string: Intel Open Source Technology Center OpenGL renderer string: Mesa DRI Intel(R) Sandybridge Mobile OpenGL core profile version string: 3.3 (Core Profile) Mesa 17.1.3 OpenGL core profile shading language version string: 3.30 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile Linux 4.11.8-1-default #1 SMP PREEMPT Thu Jun 29 14:37:33 UTC 2017 (42bd7a0) x86_64 x86_64 x86_64 GNU/Linux
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102fef33f14f21869725ebfa46d57c31ec4002b3
Description
Summary
The memory allocated by SceneLoader isn't released when the Scene3D it belongs to is destroyed.
What did you do?
I use a Loader to load a QML Scene3D. This scene only comprises an Entity that is filled by a SceneLoader component, which reads an OBJ file.
What did you expect to happen?
I expect the memory allocated by the SceneLoader to be freed.
What happened instead?
The (huge amount) of memory allocated isn't freed. This can lead to gigabytes of memory lost after a few minutes, which makes the SceneLoader component unusable.
Attached project
The attached simple project loads and unloads a Scene3D that have a SceneLoader every 5 seconds, so you can see the the memory consumption growing indefinitely.
According to the Valgrind dump it seems that it's the memory allocated by the Assimp plugin that is not freed.
Attachments
Issue Links
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| For Gerrit Dashboard: QTBUG-61856 | ||||||
|---|---|---|---|---|---|---|
| # | Subject | Branch | Project | Status | CR | V |
| 200379,3 | Fix memory leaks in assimp SceneLoader | 5.9 | qt/qt3d | Status: MERGED | +2 | 0 |