BLENDER crashing upon opening #80907

New Issue

Johnny Bell · 2020-09-17T22:38:43+02:00

Johnny Bell commented

2020-09-17 22:38:43 +02:00

System Information
Operating system: MacBook Pro / Catalina - Processor 2.9 GHz 6 core intel i9 - Memory 32 GB 2400 MHz DDR4
Graphics card: Intel UHD Graphics 630 1536 MB

Blender Version
Broken: (example: 2.80, edbf15d3c0, master, 2018-11-28, as found on the splash screen)
Worked: (newest version of Blender that worked as expected)
Not opening on 2.9 or 2.91

Short description of error
File will not even open. Click on the .blend file, blender starts to run then crashes right away.
SCENE52.0.blend
Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).

**System Information** Operating system: MacBook Pro / Catalina - Processor 2.9 GHz 6 core intel i9 - Memory 32 GB 2400 MHz DDR4 Graphics card: Intel UHD Graphics 630 1536 MB **Blender Version** Broken: (example: 2.80, edbf15d3c044, master, 2018-11-28, as found on the splash screen) Worked: (newest version of Blender that worked as expected) Not opening on 2.9 or 2.91 **Short description of error** File will not even open. Click on the .blend file, blender starts to run then crashes right away. [SCENE52.0.blend](https://archive.blender.org/developer/F8893123/SCENE52.0.blend) **Exact steps for others to reproduce the error** Based on the default startup or an attached .blend file (as simple as possible).

Johnny Bell commented

2020-09-17 22:38:43 +02:00

Added subscriber: @johnhayesbell-4

ronsn commented

2020-09-17 23:13:33 +02:00

Added subscriber: @ronsn

ronsn commented

2020-09-17 23:13:33 +02:00

I can confirm that. Seems to be a segmentation fault in BKE_mesh_calc_poly_normal ()

Debugging gave me:

Read blend: /home/lynx/Downloads/SCENE52.0.blend
Thread 27 "blender" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffccfff700 (LWP 7134)]
0x0000000000ec959a in BKE_mesh_calc_poly_normal ()

––––––––––––––––––––––––––

System Information
Operating system: Linux-5.4.0-47-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: GeForce GTX 1660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.100

Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-09-17 12:10, hash: 82bd1287dd

I can confirm that. Seems to be a segmentation fault in `BKE_mesh_calc_poly_normal ()` Debugging gave me: > Read blend: /home/lynx/Downloads/SCENE52.0.blend > Thread 27 "blender" received signal SIGSEGV, Segmentation fault. > [Switching to Thread 0x7fffccfff700 (LWP 7134)] > 0x0000000000ec959a in BKE_mesh_calc_poly_normal () –––––––––––––––––––––––––– **System Information** Operating system: Linux-5.4.0-47-generic-x86_64-with-debian-bullseye-sid 64 Bits Graphics card: GeForce GTX 1660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.100 **Blender Version** Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-09-17 12:10, hash: `82bd1287dd`

Germano Cavalcante commented

2020-09-18 22:21:46 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2020-09-18 22:21:46 +02:00

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

Germano Cavalcante commented

2020-09-18 22:21:46 +02:00

Thanks for the report,

The problem here is that in this file some meshes are corrupted.

The question is, how did these meshes get corrupted?

Unfortunately unless there are clear instructions on how to reproduce it from scratch we cannot debug this any further.

Things that may cause mesh corruption: Importers, development versions of Blender, modeling tools.

SCENE52.0_fixed.blend

Thanks for the report, The problem here is that in this file some meshes are corrupted. The question is, how did these meshes get corrupted? Unfortunately unless there are clear instructions on how to reproduce it from scratch we cannot debug this any further. Things that may cause mesh corruption: Importers, development versions of Blender, modeling tools. [SCENE52.0_fixed.blend](https://archive.blender.org/developer/F8896758/SCENE52.0_fixed.blend)

Johnny Bell commented

2020-09-19 01:02:44 +02:00

Thank you Germano for the reply-

I guess this is disconcerting though as I have been working off this file for months now and have added NO new imports or modeling tools.... I HAVE upgraded though to 2.9 from 2.83 (and have also tried opening it with 2.91--- w no luck). So moving forward- should I never upgrade with the newest version of Blender until I finish a project as upgrading may cause corruption?? This sounds counter intuitive as you would think a better version of something would be... better? I guess the frustration comes that I can get deep into a project with a client, and be walking on eggshells every day as all of a sudden, out of nowhere, my file could become "corrupted" because I upgraded it. I have also upgraded my MacBook Pro from Mojave to Catalina.. could this be the issue? But again, how could upgrading to something better only lead to something.... worse? Appreciate the help, but this leaves me extremely frustrated.

Thank you Germano for the reply- I guess this is disconcerting though as I have been working off this file for months now and have added NO new imports or modeling tools.... I HAVE upgraded though to 2.9 from 2.83 (and have also tried opening it with 2.91--- w no luck). So moving forward- should I never upgrade with the newest version of Blender until I finish a project as upgrading may cause corruption?? This sounds counter intuitive as you would think a better version of something would be... better? I guess the frustration comes that I can get deep into a project with a client, and be walking on eggshells every day as all of a sudden, out of nowhere, my file could become "corrupted" because I upgraded it. I have also upgraded my MacBook Pro from Mojave to Catalina.. could this be the issue? But again, how could upgrading to something better only lead to something.... worse? Appreciate the help, but this leaves me extremely frustrated.

Ankit Meel commented

2020-10-07 11:29:44 +02:00

Added subscriber: @ankitm

Ankit Meel commented

2020-10-07 11:29:44 +02:00

should I never upgrade with the newest version of Blender until I finish a project as upgrading may cause corruption??

Yes, that's where LTS is useful. Major upgrades introduce new features, and new bugs too. https://www.blender.org/download/lts/

I have also upgraded my MacBook Pro from Mojave to Catalina.. could this be the issue?

This update should not interfere with mesh editing part. If it were a GPU error, then yes.

> should I never upgrade with the newest version of Blender until I finish a project as upgrading may cause corruption?? Yes, that's where LTS is useful. Major upgrades introduce new features, and new bugs too. https://www.blender.org/download/lts/ > I have also upgraded my MacBook Pro from Mojave to Catalina.. could this be the issue? This update should not interfere with mesh editing part. If it were a GPU error, then yes.

Germano Cavalcante commented

2020-10-14 17:04:42 +02:00

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

Germano Cavalcante closed this issue

2020-10-14 17:04:42 +02:00

Germano Cavalcante self-assigned this 2020-10-14 17:04:42 +02:00

Germano Cavalcante commented

2020-10-14 17:04:42 +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 happen again 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 happen again please open a new report with the required information.

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BLENDER crashing upon opening #80907