Duplicating text block with Alt-D causes crash #38072

New Issue

Lawrence D'Oliveiro · 2014-01-05T01:18:56+01:00

2014-01-05 01:18:56 +01:00

System Information
Debian Unstable, Intel Core i7 HD4000 graphics

Blender Version
2.69.7, built from Git just a few minutes ago

Short description of error
Crash when duplicating a text block with Alt-D, but only in certain circumstances.

Exact steps for others to reproduce the error
The enclosed .blend file text-alt-d-crash.blend contains (besides a light and camera) a mesh object and a text object. Duplicating the text object with Alt-D leads to either weird corruption in the display of the text or a crash. The crash appears to be caused by freeing an already-freed pointer (according to the error message).

Duplicating the text block with Shift-D instead of Alt-D seems to work fine.

i tried removing the mesh object; the resulting file also works fine. So there is some subtle interaction involving its presence.

I also enclose crash-traceback.txt a traceback generated by the GDB bt command on a Blender build with debugging symbols.

**System Information** Debian Unstable, Intel Core i7 HD4000 graphics **Blender Version** 2.69.7, built from Git just a few minutes ago **Short description of error** Crash when duplicating a text block with Alt-D, but only in certain circumstances. **Exact steps for others to reproduce the error** The enclosed .blend file [text-alt-d-crash.blend](https://archive.blender.org/developer/F61966/text-alt-d-crash.blend) contains (besides a light and camera) a mesh object and a text object. Duplicating the **text** object with Alt-D leads to either weird corruption in the display of the text or a crash. The crash appears to be caused by freeing an already-freed pointer (according to the error message). Duplicating the text block with Shift-D instead of Alt-D seems to work fine. i tried removing the mesh object; the resulting file also works fine. So there is some subtle interaction involving its presence. I also enclose [crash-traceback.txt](https://archive.blender.org/developer/F61967/crash-traceback.txt) a traceback generated by the GDB bt command on a Blender build with debugging symbols.

Lawrence D'Oliveiro commented

2014-01-05 01:18:56 +01:00

Changed status to: 'Open'

Lawrence D'Oliveiro commented

2014-01-05 01:18:56 +01:00

Added subscriber: @ldo

Lawrence D'Oliveiro commented

2014-01-05 06:43:37 +01:00

Further to the above, I found an easier way to reproduce the problem: Start with a new Blender document, including default cube; add a new Text object, leaving it with the default text and font settings. Try to duplicate it with Alt-D—instant crash.

Get rid of the default cube before adding and duplicating the text block, and it works.

Further to the above, I found an easier way to reproduce the problem: Start with a new Blender document, including default cube; add a new Text object, leaving it with the default text and font settings. Try to duplicate it with Alt-D—instant crash. Get rid of the default cube before adding and duplicating the text block, and it works.

Lino Thomas commented

2014-01-05 10:37:20 +01:00

Added subscriber: @LinoThomas

Lino Thomas commented

2014-01-05 10:37:20 +01:00

Could not reproduce with the official 2.69 r60995 win64bit build. Adding a text object and dupicating it immediately afterwards does not cause a crash.
Seems to be a newer bug then.

Could not reproduce with the official 2.69 r60995 win64bit build. Adding a text object and dupicating it immediately afterwards does not cause a crash. Seems to be a newer bug then.

Sergey Sharybin was assigned by Joshua Leung

2014-01-05 13:38:21 +01:00

Joshua Leung commented

2014-01-05 13:38:21 +01:00

Added subscriber: @JoshuaLeung

Joshua Leung commented

2014-01-05 13:38:21 +01:00

Assigning to Sergey. This is probably related to the text3d threading issues that have been causing issues recently

Sergey Sharybin commented

2014-01-05 15:55:59 +01:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2014-01-05 15:55:59 +01:00

Sergey Sharybin commented

2014-01-05 15:55:59 +01:00

I actually fixed it already in a2bf25e8ff

So thanks for the report, but i'm just closing it coz the bug is fixed! Thanks for it anyway and happy blending! :)

I actually fixed it already in a2bf25e8ff So thanks for the report, but i'm just closing it coz the bug is fixed! Thanks for it anyway and happy blending! :)

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Duplicating text block with Alt-D causes crash #38072