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Compositing causes access violation when rendering from command line
Closed, ResolvedPublic

Description

System Information

  • Windows 7 64 bit
  • Quadro 2000D

I tested it on a few similar PCs (on the same network), all of them crash. Will test it on my home PC as well later.

Blender Version
Broken: 2.76 official & recent master from buildbot(48f7dd6)

Short description of error
When rendering an animation from a certain file from the command line, it crashes ~50% of the time with Error: EXCEPTION_ACCESS_VIOLATION

Some frames it completes, some frames it crashes. It's not consistent about which frames do or don't finish.

It seems to be related to compositing, as the crash happens when the render finishes, and if I disable compositing from the post-processing panel then it does not crash at all. But the comp setup is simple (just saving out layers and passes), and there doesn't seem to be any particular node at fault.

Exact steps for others to reproduce the error
Blend file:

  • Render file from command line with blender -b Sh01_tst.blend -a and it should crash after a few frames (sometimes the first one, sometimes the 10th, it's really not consistent).
  • Open blender UI, load the file and render the animation. It probably won't crash, although on two PCs it did crash after a while but I can't repeat it.
  • Disable compositing in post-processing panel, save the file and render it from the command line again. It won't crash now.