Crash/segfault on double-tap-a in weight paint mode with mask #86368

New Issue

Andrew Oates · 2021-03-07T19:46:14+01:00

Andrew Oates commented

2021-03-07 19:46:14 +01:00

System Information
Operating system: Darwin-17.7.0-x86_64-i386-64bit 64 Bits
Graphics card: NVIDIA GeForce GT 750M OpenGL Engine NVIDIA Corporation 4.1 NVIDIA-10.32.0 355.11.10.10.40.102

Blender Version
Broken: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: 02948a2cab
(also seen on 2.91.2)
Worked: Unknown

Short description of error
Blender segfaults when double-tapping "a" to deselect in weight paint mode when the mask is enabled.

Exact steps for others to reproduce the error

Enter weight paint mode on default cube
Click "paint mask" button
Double-tap "a" key repeatedly until segfault happens

Seems more likely to happen when some weights are set, if an armature is attached, etc. But even with no weights added, double-tapping "a" enough times will cause a crash. On my more complicated scene, it happens 100% of the time.

blender_crash_2.92.0 2.txt

blender.crash.txt

**System Information** Operating system: Darwin-17.7.0-x86_64-i386-64bit 64 Bits Graphics card: NVIDIA GeForce GT 750M OpenGL Engine NVIDIA Corporation 4.1 NVIDIA-10.32.0 355.11.10.10.40.102 **Blender Version** Broken: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: `02948a2cab` (also seen on 2.91.2) Worked: Unknown **Short description of error** Blender segfaults when double-tapping "a" to deselect in weight paint mode when the mask is enabled. **Exact steps for others to reproduce the error** 1) Enter weight paint mode on default cube 2) Click "paint mask" button 3) Double-tap "a" key repeatedly until segfault happens Seems more likely to happen when some weights are set, if an armature is attached, etc. But even with no weights added, double-tapping "a" enough times will cause a crash. On my more complicated scene, it happens 100% of the time. [blender_crash_2.92.0 2.txt](https://archive.blender.org/developer/F9877676/blender_crash_2.92.0_2.txt) [blender.crash.txt](https://archive.blender.org/developer/F9877679/blender.crash.txt)

Andrew Oates commented

2021-03-07 19:46:14 +01:00

Added subscriber: @aoates

Philipp Oeser commented

2021-03-08 11:17:10 +01:00

Added subscribers: @fclem, @lichtwerk

Philipp Oeser commented

2021-03-08 11:17:10 +01:00

Changed status from 'Needs Triage' to: 'Needs Developer To Reproduce'

Philipp Oeser commented

2021-03-08 11:17:10 +01:00

I am seeing this crash in glDrawElementsInstancedBaseVertex being reported often now.
It is always on MacOS.

#84247
#84322
blender/blender-addons#73249
#83028
there are others I have seen (this is not easy to search, because that info is burried in the crash logs -- but: there are more)

This could probably mean anything, @fclem: does this ring a bell?

I am seeing this crash in `glDrawElementsInstancedBaseVertex` being reported often now. It is always on MacOS. #84247 #84322 blender/blender-addons#73249 #83028 there are others I have seen (this is not easy to search, because that info is burried in the crash logs -- but: there are more) This could probably mean anything, @fclem: does this ring a bell?

jordan cruz commented

2021-03-25 08:35:18 +01:00

Added subscriber: @CountJJ

jordan cruz commented

2021-03-25 08:35:18 +01:00

I have also encountered this issue, also on macos
blender crash again.rtf
same version, but in my case its almost doing anything with the weight paint mask, whether its to invert the mask or deselecting all. When it happens the weight paint colors disappear from the mesh.

I have also encountered this issue, also on macos [blender crash again.rtf](https://archive.blender.org/developer/F9908913/blender_crash_again.rtf) same version, but in my case its almost doing anything with the weight paint mask, whether its to invert the mask or deselecting all. When it happens the weight paint colors disappear from the mesh.

Ankit Meel commented

2021-06-11 18:29:34 +02:00

Added subscriber: @ankitm

Ankit Meel commented

2021-06-11 18:29:34 +02:00

Changed status from 'Needs Developer To Reproduce' to: 'Needs User Info'

Ankit Meel commented

2021-06-11 18:29:34 +02:00

Please retry on Blender 2.93, #84268 (Crash when selecting in weight mode (Paint Mask)) was resolved.

Philipp Oeser commented

2021-07-02 12:30:40 +02:00

Changed status from 'Needs User Info' to: 'Archived'

Philipp Oeser closed this issue

2021-07-02 12:30:40 +02:00

Philipp Oeser commented

2021-07-02 12:30:40 +02:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

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Crash/segfault on double-tap-a in weight paint mode with mask #86368