EXCEPTION_ACCESS_VIOLATION Blender 2.79 #54978

New Issue

Nathan L · 2018-05-07T04:11:00+02:00

Nathan L commented

2018-05-07 04:11:00 +02:00

System Information
Using Win10 64bit
Gigabyte GeForce® GTX 1050 Ti

Blender Version
Broken: 2.79
Worked: 2.78c

Short description of error
Closes on boot when running normally regardless of run as admin
Throws error "EXCEPTION_ACCESS_VIOLATION" when running from cmd
Only 2.79 is broken for me, every other version i've tried works like a glove

**System Information** Using Win10 64bit Gigabyte GeForce® GTX 1050 Ti **Blender Version** Broken: 2.79 Worked: 2.78c **Short description of error** Closes on boot when running normally regardless of run as admin Throws error "EXCEPTION_ACCESS_VIOLATION" when running from cmd Only 2.79 is broken for me, every other version i've tried works like a glove

Nathan L commented

2018-05-07 04:11:01 +02:00

Added subscriber: @DerangedDerp

Philipp Oeser commented

2018-05-07 10:13:08 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2018-05-07 10:13:08 +02:00

Please:

Ensure both your OS and drivers are fully up-to-date (and use official GPU drivers, not those provided by windows or tablet/laptop maker).
Try to disable any running antivirus.
Try the latest build from our buildbot .
Try to start Blender in factory settings (--factory-startup commandline option) (this will ensure whether this is a userpref or addon issue or not).
Try to tweak your GPU driver settings (e.g. try different values between 'performance' and 'quality' if you have such slider, etc.
Launch Blender from the command line with -d option and attach as text file here any error printed out in the console (do not paste it directly in comment).
Try to run Blender through Software OpenGL, this will be much slower however, if everything works then it means that the bug is spefic for your GPU/Driver and you should report the bug to your GPU vendor instead.

 On MS-Windows: Download [[ http://download.blender.org/ftp/sergey/softwaregl/win64/opengl32.dll | this dll ]] and copying it so its located in the same directory as 'blender.exe' and run Blender normally.

Marking as incomplete until we have this tried.

Please: - Ensure both your OS and drivers are fully up-to-date (and use official GPU drivers, not those provided by windows or tablet/laptop maker). - Try to disable any running antivirus. - Try the latest build from our [buildbot ](https://builder.blender.org/download). - Try to start Blender in factory settings (--factory-startup commandline option) (this will ensure whether this is a userpref or addon issue or not). - Try to tweak your GPU driver settings (e.g. try different values between 'performance' and 'quality' if you have such slider, etc. - Launch Blender from the command line with -d option and attach as text file here any error printed out in the console (do not paste it directly in comment). - Try to run Blender through Software OpenGL, this will be much slower however, if everything works then it means that the bug is spefic for your GPU/Driver and you should report the bug to your GPU vendor instead. ``` On MS-Windows: Download [[ http://download.blender.org/ftp/sergey/softwaregl/win64/opengl32.dll | this dll ]] and copying it so its located in the same directory as 'blender.exe' and run Blender normally. ``` Marking as incomplete until we have this tried.

CodeManX commented

2018-05-16 23:58:29 +02:00

Added subscriber: @CodeManX

CodeManX commented

2018-05-16 23:58:29 +02:00

Same problem here, Windows 10 Pro 64bit, build 1709 (not fully up to date, Windows Update broken for unknown reasons) and an Nvidia Geforce GTX 970 with latest drivers.

If I remember correctly, 2.78 was initially installed and worked, but that could be months ago. Just updated with the official installer to 2.79b, but still crashes despite the following:

No 3rd party antivirus, only Windows Defender
Command line parameter --factory-startup
Using opengl32.dll
Reinstallation of VC redist 2013
Running as administrator
Changed Python related things in environment variables to some non-existing paths (e.g. C:\tools\python2 --> C:\tools\piiithon2)

The following build bot builds start without problems however:

blender-2.79-4461be1-win64.zip (VC12)
blender-2.79-4461be1-win64-vc14.zip
blender-2.80-34c98e3-win64-vc14.zip

Seems highly unlikely that a change to the driver settings would make the official 2.79b work that otherwise crashes, whereas above builds start up just fine without a change to the driver settings.

I can't update Windows at the moment, because something is terrible broken there since 2 weeks. It might have started when I tried to install the Hyper-V feature, which is currently enabled.

Running the crashing 2.79b with -d option:

C:\Program Files\Blender Foundation\Blender>blender --factory-startup -d
Switching to fully guarded memory allocator.
Blender 2.79 (sub 0)
Build: Thu 03/22/2018 09:59 AM Windows
argv[0] = blender
argv[1] = --factory-startup
argv[2] = -d
read file
  Version 272 sub 2 date unknown hash unknown

ordered
 OBCube
 OBLamp
 OBCamera
AL lib: (EE) UpdateDeviceParams: Failed to set 44100hz, got 48000hz instead
found bundled python: C:\Program Files\Blender Foundation\Blender\2.79\python
Error: EXCEPTION_ACCESS_VIOLATION

Doing the same with one of the working builds:

C:\Users\CodeManX\Downloads\blender-2.79.0-git.4461be1-windows64-vc12>blender -d
Switching to fully guarded memory allocator.
Blender 2.79 (sub 4)
Build: Wed 05/16/2018 04:27 AM Windows Release
argv[0] = blender
argv[1] = -d
read file
  Version 272 sub 2 date unknown hash unknown

ordered
 OBCube
 OBLamp
 OBCamera
AL lib: (EE) UpdateDeviceParams: Failed to set 44100hz, got 48000hz instead
found bundled python: C:\Users\Simran\Downloads\blender-2.79.0-git.4461be1-windows64-vc12\2.79\python
Cycles OpenCL: driver crashed, continuing without OpenCL.

The last line seems relevant. OpenCL crashed apparently, but Blender doesn't seem to care. Is it possible that the older official version doesn't catch this error and crashes?

Same problem here, Windows 10 Pro 64bit, build 1709 (not fully up to date, Windows Update broken for unknown reasons) and an Nvidia Geforce GTX 970 with latest drivers. If I remember correctly, 2.78 was initially installed and worked, but that could be months ago. Just updated with the official installer to 2.79b, but still crashes despite the following: - No 3rd party antivirus, only Windows Defender - Command line parameter --factory-startup - Using opengl32.dll - Reinstallation of VC redist 2013 - Running as administrator - Changed Python related things in environment variables to some non-existing paths (e.g. C:\tools\python2 --> C:\tools\piiithon2) The following build bot builds start without problems however: - blender-2.79-4461be1-win64.zip (VC12) - blender-2.79-4461be1-win64-vc14.zip - blender-2.80-34c98e3-win64-vc14.zip Seems highly unlikely that a change to the driver settings would make the official 2.79b work that otherwise crashes, whereas above builds start up just fine without a change to the driver settings. I can't update Windows at the moment, because something is terrible broken there since 2 weeks. It might have started when I tried to install the Hyper-V feature, which is currently enabled. Running the crashing 2.79b with -d option: ``` C:\Program Files\Blender Foundation\Blender>blender --factory-startup -d Switching to fully guarded memory allocator. Blender 2.79 (sub 0) Build: Thu 03/22/2018 09:59 AM Windows argv[0] = blender argv[1] = --factory-startup argv[2] = -d read file Version 272 sub 2 date unknown hash unknown ordered OBCube OBLamp OBCamera AL lib: (EE) UpdateDeviceParams: Failed to set 44100hz, got 48000hz instead found bundled python: C:\Program Files\Blender Foundation\Blender\2.79\python Error: EXCEPTION_ACCESS_VIOLATION ``` Doing the same with one of the working builds: ``` C:\Users\CodeManX\Downloads\blender-2.79.0-git.4461be1-windows64-vc12>blender -d Switching to fully guarded memory allocator. Blender 2.79 (sub 4) Build: Wed 05/16/2018 04:27 AM Windows Release argv[0] = blender argv[1] = -d read file Version 272 sub 2 date unknown hash unknown ordered OBCube OBLamp OBCamera AL lib: (EE) UpdateDeviceParams: Failed to set 44100hz, got 48000hz instead found bundled python: C:\Users\Simran\Downloads\blender-2.79.0-git.4461be1-windows64-vc12\2.79\python Cycles OpenCL: driver crashed, continuing without OpenCL. ``` The last line seems relevant. OpenCL crashed apparently, but Blender doesn't seem to care. Is it possible that the older official version doesn't catch this error and crashes?

UBC SSL commented

2018-05-17 01:34:06 +02:00

Added subscriber: @ubc-ssl

UBC SSL commented

2018-05-17 01:34:06 +02:00

I've got the same problem on 2.79, I've installed VC Redist 2013, updated graphics drivers from AMD, and tried running both as admin, and with the software OpenGL dll. I've also tried running with --factory-startup, but this is the first run of the program on a new machine, so there are no existing user settings.

Windows 10 Pro 64-bit (10.0, Build 16299)
Intel Core i5-7500
16GB RAM
AMD FirePro W2100
- Driver date: 2018-4-25

C:\Program Files\Blender Foundation\Blender> ./blender.exe -d
Switching to fully guarded memory allocator.
Blender 2.79 (sub 0)
Build: Thu 03/22/2018 09:59 AM Windows
argv[0] = C:\Program Files\Blender Foundation\Blender\blender.exe
argv[1] = -d
read file
  Version 272 sub 2 date unknown hash unknown

ordered
 OBCube
 OBLamp
 OBCamera
AL lib: (EE) UpdateDeviceParams: Failed to set 44100hz, got 48000hz instead
found bundled python: C:\Program Files\Blender Foundation\Blender\2.79\python
Error: EXCEPTION_ACCESS_VIOLATION

I've got the same problem on 2.79, I've installed VC Redist 2013, updated graphics drivers from AMD, and tried running both as admin, and with the software OpenGL dll. I've also tried running with `--factory-startup`, but this is the first run of the program on a new machine, so there are no existing user settings. * Windows 10 Pro 64-bit (10.0, Build 16299) * Intel Core i5-7500 * 16GB RAM * AMD FirePro W2100 * Driver date: 2018-4-25 ``` C:\Program Files\Blender Foundation\Blender> ./blender.exe -d Switching to fully guarded memory allocator. Blender 2.79 (sub 0) Build: Thu 03/22/2018 09:59 AM Windows argv[0] = C:\Program Files\Blender Foundation\Blender\blender.exe argv[1] = -d read file Version 272 sub 2 date unknown hash unknown ordered OBCube OBLamp OBCamera AL lib: (EE) UpdateDeviceParams: Failed to set 44100hz, got 48000hz instead found bundled python: C:\Program Files\Blender Foundation\Blender\2.79\python Error: EXCEPTION_ACCESS_VIOLATION ```

Bastien Montagne commented

2018-07-12 11:53:47 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2018-07-12 11:53:47 +02:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2018-07-12 11:53:47 +02:00

Bastien Montagne self-assigned this 2018-07-12 11:53:47 +02:00

Bastien Montagne commented

2018-07-12 11:53:47 +02:00

If builds from May work well, then we can consider the bug as fixed!

michael campbell commented

2019-09-23 16:49:10 +02:00

Added subscriber: @3di

michael campbell commented

2019-09-23 16:49:10 +02:00

This comment was removed by @3di

*This comment was removed by @3di*

michael campbell commented

2019-09-23 16:49:45 +02:00

Changed status from 'Resolved' to: 'Open'

michael campbell reopened this issue

2019-09-23 16:49:45 +02:00

michael campbell commented

2019-09-23 16:49:45 +02:00

i'm getting this problem on version: 2.81 (sub 12), branch: master, commit date: 2019-09-23 09:09, hash: 1d1ef2e797. It happens when i'm using jacques vs code extension to run a script, but only if the script does anything other than a print command, for example if I try the below, blender shuts down immediately with the access violation exception.

context.area: VIEW_3D

import bpy
from mathutils import *
D = bpy.data
C = bpy.context

bpy.ops.mesh.primitive_monkey_add(location=(0,0,0))

code works fine from within blender's text editor.

i'm getting this problem on version: 2.81 (sub 12), branch: master, commit date: 2019-09-23 09:09, hash: `1d1ef2e797`. It happens when i'm using jacques vs code extension to run a script, but only if the script does anything other than a print command, for example if I try the below, blender shuts down immediately with the access violation exception. # context.area: VIEW_3D import bpy from mathutils import * D = bpy.data C = bpy.context bpy.ops.mesh.primitive_monkey_add(location=(0,0,0)) code works fine from within blender's text editor.

Philipp Oeser commented

2019-09-23 17:16:01 +02:00

Changed status from 'Open' to: 'Resolved'

Philipp Oeser closed this issue

2019-09-23 17:16:01 +02:00

Philipp Oeser commented

2019-09-23 17:16:01 +02:00

That extension is not maintained by blender, so if it is not crashing in blender, it is not considered a bug, also this seems to be differnt issue than the original report, please dont use old reports for new issues

michael campbell commented

2019-09-23 17:17:31 +02:00

In #54978#782158, @lichtwerk wrote:
That extension is not maintained by blender, so if it is not crashing in blender, it is not considered a bug, also this seems to be differnt issue than the original report, please dont use old reports for new issues

just spoke to jacques, he says:

There might not be a good solution for this currently. The issue is, that this uses timers in Blender, which run without a context. (and most operators need a context)

> In #54978#782158, @lichtwerk wrote: > That extension is not maintained by blender, so if it is not crashing in blender, it is not considered a bug, also this seems to be differnt issue than the original report, please dont use old reports for new issues just spoke to jacques, he says: There might not be a good solution for this currently. The issue is, that this uses timers in Blender, which run without a context. (and most operators need a context)

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EXCEPTION_ACCESS_VIOLATION Blender 2.79 #54978

context.area: VIEW_3D