Crash when using Ctrl-Z on the Render layer #48604

New Issue

John Shanley · 2016-06-07T19:18:25+02:00

John Shanley commented

2016-06-07 19:18:25 +02:00

System Information
Operating system and graphics card
Win 10 Home 64bit, 3.4 Ghz Intel I-7 6700, 16 gig RAM, GeForce GTX 745, 4 megs.

Also tested on a Win10 Home 64bit, 3.1 Ghz Intel I-5 4440, 8 gig RAM, no GPU card.

Blender Version
Broken: 2.77a
Worked: N/A

Short description of error
Crash when using CTRL-Z to undo on the layer to be rendered. VesselModel_03.blend

Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps

Go to any layer, other than the one with the Camera.
In Object mode, Hide an object, then use CTRL-Z to Undo. Object reappears as expected.
Go layer 11 (with the ISO camera). Hide an object and press CTRL-Z...crash.

The crash doesn't happen with earlier files of this model (VesselModel_01.blend and VesselModel_02.blend). It appears that something is corrupting this file and it has been passed on to other files that were modified and saved from this one.

**System Information** Operating system and graphics card Win 10 Home 64bit, 3.4 Ghz Intel I-7 6700, 16 gig RAM, GeForce GTX 745, 4 megs. Also tested on a Win10 Home 64bit, 3.1 Ghz Intel I-5 4440, 8 gig RAM, no GPU card. **Blender Version** Broken: 2.77a Worked: N/A **Short description of error** Crash when using CTRL-Z to undo on the layer to be rendered. [VesselModel_03.blend](https://archive.blender.org/developer/F316358/VesselModel_03.blend) **Exact steps for others to reproduce the error** Based on a (as simple as possible) attached .blend file with minimum amount of steps 1. Go to any layer, other than the one with the Camera. 2. In Object mode, Hide an object, then use CTRL-Z to Undo. Object reappears as expected. 3. Go layer 11 (with the ISO camera). Hide an object and press CTRL-Z...crash. The crash doesn't happen with earlier files of this model (VesselModel_01.blend and VesselModel_02.blend). It appears that something is corrupting this file and it has been passed on to other files that were modified and saved from this one.

John Shanley commented

2016-06-07 19:18:25 +02:00

Changed status to: 'Open'

John Shanley self-assigned this 2016-06-07 19:18:25 +02:00

John Shanley commented

2016-06-07 19:18:25 +02:00

Added subscriber: @jjfeenix

Bastien Montagne commented

2016-06-12 11:39:36 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2016-06-12 11:39:36 +02:00

Can confirm the issue.

Crash seems to happen because a scene's base is freed during cleanup step of undo, while actually being in use by the scene…

Can confirm the issue. Crash seems to happen because a scene's base is freed during cleanup step of undo, while actually being in use by the scene…

Bastien Montagne commented

2016-06-12 11:40:39 +02:00

Also, 2.77a release crashes, but not 2.76b…

Bastien Montagne commented

2016-06-12 15:32:23 +02:00

OK, so this heavily simplified file still crashes on undo… will be much easier to investigate. ;)

VesselModel_03_simplified.blend

OK, so this heavily simplified file still crashes on undo… will be much easier to investigate. ;) [VesselModel_03_simplified.blend](https://archive.blender.org/developer/F316885/VesselModel_03_simplified.blend)

John Shanley was unassigned by Bastien Montagne

2016-06-12 16:57:27 +02:00

Bastien Montagne self-assigned this 2016-06-12 16:57:27 +02:00

Bastien Montagne commented

2016-06-12 16:57:27 +02:00

Arf, finally found the culprit, was in drawing code actually…

blender-admin commented

2016-06-12 17:06:50 +02:00

This issue was referenced by 055001111e

This issue was referenced by 055001111e226e953b18c31deaacc2e1e7394f78

Bastien Montagne commented

2016-06-12 17:07:28 +02:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2016-06-12 17:07:28 +02:00

John Shanley commented

2016-06-20 02:07:35 +02:00

So now what? I'm pretty new to Blender and have never turned in a bug before. Is there are fix for what ever ails 2.77a?

Before I saw your Simplified file, by process of elimination, I narrowed it down to the spotlights. I transferred the file to a Win 7 machine with 2.76b installed and was able to move all 4 spotlights to another layer, then remove them one by one- in order (spot, spot001, spot.002, spot.003). If I tried to delete them all or out of order then instant crash.

However this method does not work on Win 10, 2.77a. I can't delete them in any order. I even moved each spotlight to separate layers and tried deleting each one.

Is there any way to delete these spotlights outside of the user interface?

Thanks,
JohnS

So now what? I'm pretty new to Blender and have never turned in a bug before. Is there are fix for what ever ails 2.77a? Before I saw your Simplified file, by process of elimination, I narrowed it down to the spotlights. I transferred the file to a Win 7 machine with 2.76b installed and was able to move all 4 spotlights to another layer, then remove them one by one- in order (spot, spot001, spot.002, spot.003). If I tried to delete them all or out of order then instant crash. However this method does not work on Win 10, 2.77a. I can't delete them in any order. I even moved each spotlight to separate layers and tried deleting each one. Is there any way to delete these spotlights outside of the user interface? Thanks, JohnS

Bastien Montagne commented

2016-06-20 09:13:27 +02:00

Fix is in master, and will be in next release as well, until then you can use the latest build from our buildbot.

Fix is in master, and will be in next release as well, until then you can use the latest build from [our buildbot](https://builder.blender.org/download).

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Crash when using Ctrl-Z on the Render layer #48604