Blender 2.8 Crashes a lot on segmentation fault 11 (on Macbook Air) #56132

New Issue

Roel Koster · 2018-07-28T17:38:50+02:00

Roel Koster commented

2018-07-28 17:38:50 +02:00

System Information
OSX 10.12.6 Macbook Air, Intel HD 5000
Blender Version
Broken: I'm still compiling several commits to pinpoint where it went wrong.. but I can't remember having these a month ago or so..

Short description of error
On unpredictable (yet) moments blender crashes.
Showed a debug/crash log on IRC and Ton replied: the UI, preview render for icons is crashing, advised to report it..

Exact steps for others to reproduce the error
There is no real fail save why I'm sorry. But this helps:

factory settings
enable preview (eevee)
add/remove objects/materials/worlds.. all can result in crash
1.txt

2.txt

**System Information** OSX 10.12.6 Macbook Air, Intel HD 5000 **Blender Version** Broken: I'm still compiling several commits to pinpoint where it went wrong.. but I can't remember having these a month ago or so.. **Short description of error** On unpredictable (yet) moments blender crashes. Showed a debug/crash log on IRC and Ton replied: the UI, preview render for icons is crashing, advised to report it.. **Exact steps for others to reproduce the error** There is no real fail save why I'm sorry. But this helps: - factory settings - enable preview (eevee) - add/remove objects/materials/worlds.. all can result in crash [1.txt](https://archive.blender.org/developer/F4069362/1.txt) [2.txt](https://archive.blender.org/developer/F4069363/2.txt)

Roel Koster commented

2018-07-28 17:38:50 +02:00

Added subscriber: @kostex

Inês Almeida commented

2018-07-28 21:29:57 +02:00

Added subscriber: @brita

Inês Almeida commented

2018-07-28 21:29:57 +02:00

Could you add exact steps to reproduce a crash?
Does it happen with an empty file and the factory settings?

See running Blender from the command line with factory settings:

./blender.app/Contents/MacOS/blender --factory-startup

Could you add exact steps to reproduce a crash? Does it happen with an empty file and the factory settings? See [running Blender from the command ](https://docs.blender.org/manual/en/dev/advanced/command_line/introduction.html#apple-macos) line with factory settings: ``` ./blender.app/Contents/MacOS/blender --factory-startup ```

Arto Kitula commented

2018-07-29 09:53:57 +02:00

Added subscriber: @ArtoKitula

Arto Kitula commented

2018-07-29 09:53:57 +02:00

As said on IRC, build with CMAKE_BUILD_TYPE=Debug so we get possible assert also.

Roel Koster commented

2018-07-29 09:56:10 +02:00

Hi Inês,

Would you please be so kind and read my report?
There I have stated that I've started with factory default is the first thing to do to reproduce.

The strange thing is that if I start blender (with fac.default) and (as an example, because there are LOTS of ways to get the crash.. most of them when deleting/adding a world object/material/modifier etc.:

Enable preview
delete the world
add the world
- crash segmentation fault 11

Starting blender right back up and do the same..
it will work!

Maybe because that specific memory address is then initialised from the first startup and by chance/cache using it again (?) long shot...
That would explain the segmentation fault 11 in the first place.. not initialising a variable/allocation

(please examine the log files)
Will do the debug build ASAP

Hi Inês, Would you please be so kind and read my report? There I have stated that I've started with factory default is the first thing to do to reproduce. The strange thing is that if I start blender (with fac.default) and (as an example, because there are LOTS of ways to get the crash.. most of them when deleting/adding a world object/material/modifier etc.: - Enable preview - delete the world - add the world - > crash segmentation fault 11 Starting blender right back up and do the same.. it will work! Maybe because that specific memory address is then initialised from the first startup and by chance/cache using it again (?) long shot... That would explain the segmentation fault 11 in the first place.. not initialising a variable/allocation (please examine the log files) Will do the debug build ASAP

Arto Kitula self-assigned this 2018-07-29 10:02:52 +02:00

Arto Kitula commented

2018-07-29 10:02:52 +02:00

Let's keep this incomplete until debug build crashlog.

Inês Almeida commented

2018-07-29 10:25:31 +02:00

Hi Roel,

I have looked at both log files, but they don't have enough information to debug this issue.
Therefore, to reproduce this issue, it would be helpful to get the exact steps with the factory settings (as you had already done) and from a default file (which I am not sure is the case).
I am not sure what you mean by "Enable preview". Is this a material preview in the properties?

Please don't take the "Incomplete" status "your issue won't be fixed", but as "Need more info".

Hi Roel, I have looked at both log files, but they don't have enough information to debug this issue. Therefore, to reproduce this issue, it would be helpful to get the exact steps with the factory settings (as you had already done) and from a default file (which I am not sure is the case). I am not sure what you mean by "Enable preview". Is this a material preview in the properties? Please don't take the "Incomplete" status "your issue won't be fixed", but as "Need more info".

Roel Koster commented

2018-07-29 18:37:41 +02:00

Enable preview:

Enable preview:![Screen Shot 2018-07-29 at 18.36.52.png](https://archive.blender.org/developer/F4078386/Screen_Shot_2018-07-29_at_18.36.52.png)

Roel Koster commented

2018-07-29 19:13:08 +02:00

This is the version I'm using:
debug_version_280.txt
blender_debug_build_log.txt

here are 2 crashlogs.. one with --factory-startup, the other without.. Several combinations/adding/removing.. all lead to crash at some time.. not getting a definite reproducable result..
crash_debug_2.txt

crash_debug_1.txt

This is the version I'm using: [debug_version_280.txt](https://archive.blender.org/developer/F4079030/debug_version_280.txt) [blender_debug_build_log.txt](https://archive.blender.org/developer/F4078626/blender_debug_build_log.txt) here are 2 crashlogs.. one with --factory-startup, the other without.. Several combinations/adding/removing.. all lead to crash at some time.. not getting a definite reproducable result.. [crash_debug_2.txt](https://archive.blender.org/developer/F4078625/crash_debug_2.txt) [crash_debug_1.txt](https://archive.blender.org/developer/F4078624/crash_debug_1.txt)

Roel Koster commented

2018-07-29 19:36:46 +02:00

And here is a backtrace when runned through lldb
debug_log_lldb.txt

And here is a backtrace when runned through lldb [debug_log_lldb.txt](https://archive.blender.org/developer/F4078779/debug_log_lldb.txt)

Arto Kitula commented

2018-07-29 20:30:05 +02:00

Closed as duplicate of #55475

Arto Kitula closed this issue

2018-07-29 20:30:05 +02:00

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Blender 2.8 Crashes a lot on segmentation fault 11 (on Macbook Air) #56132