Crash on making material local #80104

New Issue

Blender Version
Broken: 2.83, 2.90.0, Commit date: 2020-08-24 16:27, Hash 1bced5884c
Worked: 279

Open main.blend
On the selected Cube, make its material local
Crash

source/blender/blenkernel/intern/lib_id.c:117:69: runtime error: member access within null pointer of type 'struct Library'

Full backtrace: P1602

Issue goes away if

- you delete Plane in the main file [linked -- also uses ani_matGlass_v09], save and reopen, ani_matGlass_v09 is then single-user on Cube, make local then works.
or - in the src file you delete those two OSL shader nodes from ani_matGlass_v09:

**Blender Version** Broken: 2.83, 2.90.0, Commit date: 2020-08-24 16:27, Hash 1bced5884c3d Worked: 279 [src.blend](https://archive.blender.org/developer/F8814808/src.blend) [main.blend](https://archive.blender.org/developer/F8814806/main.blend) - Open main.blend - On the selected Cube, make its material local - Crash ![image.png](https://archive.blender.org/developer/F8814834/image.png) ``` source/blender/blenkernel/intern/lib_id.c:117:69: runtime error: member access within null pointer of type 'struct Library' ``` Full backtrace: [P1602](https://archive.blender.org/developer/P1602.txt) Issue goes away if - - [x] you delete `Plane` in the `main` file [linked -- also uses `ani_matGlass_v09`], save and reopen, `ani_matGlass_v09` is then single-user on `Cube`, make local then works. - or - [x] in the `src` file you delete those two OSL shader nodes from `ani_matGlass_v09`: ![image.png](https://archive.blender.org/developer/F8814825/image.png)

Added subscriber: @IPv6

Added subscriber: @dfelinto

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

This report does not contain all the requested information, which is required for us to investigate the issue. Please let us know how to reproduce from scratch or attach a simplified file where the issue happens.

In #80104#1002473, @dfelinto wrote:
This report does not contain all the requested information, which is required for us to investigate the issue. Please let us know how to reproduce from scratch or attach a simplified file where the issue happens.

ok, sorry, see attachment.
MakeLocalCrashExample.zip

Just open "mainFile.blend" and click chain icon (make local) for material ani_matGlass_v09

For me this gives instant crash
mainFile.crash.txt

> In #80104#1002473, @dfelinto wrote: > This report does not contain all the requested information, which is required for us to investigate the issue. Please let us know how to reproduce from scratch or attach a simplified file where the issue happens. ok, sorry, see attachment. [MakeLocalCrashExample.zip](https://archive.blender.org/developer/F8810506/MakeLocalCrashExample.zip) Just open "mainFile.blend" and click chain icon (make local) for material ani_matGlass_v09 ![Screenshot 2020-08-25 at 17.05.07.png](https://archive.blender.org/developer/F8810503/Screenshot_2020-08-25_at_17.05.07.png) For me this gives instant crash [mainFile.crash.txt](https://archive.blender.org/developer/F8810505/mainFile.crash.txt)

I get a crash when I run this in 2.83 as well, yet in the report you said it worked in 2.83. Do you have a sample file that works in 2.83 but not in 2.90?

No, i just recoll that is was ok before at least with this material. But library constantly changes, so seems im wrong regarding 2.83 Its not widely used feature (by me), so i really cant recall when it started to happen //
It was perfectly fine in 2.79 though, i switched moth ago or so

No, i just recoll that is was ok before at least with this material. But library constantly changes, so seems i`m wrong regarding 2.83 Its not widely used feature (by me), so i really can`t recall when it started to happen // It was perfectly fine in 2.79 though, i switched moth ago or so

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

Crash: //source/blender/blenkernel/intern/lib_id.c:117:69: runtime error: member access within null pointer of type 'struct Library'
Full backtrace: P1602

Crash: `//source/blender/blenkernel/intern/lib_id.c:117:69: runtime error: member access within null pointer of type 'struct Library'` Full backtrace: [P1602](https://archive.blender.org/developer/P1602.txt)

Added subscriber: @mont29

@mont29 this is a very interesting issue. If I start deleting things from the file the issue goes away. That said it is not really a "simple file". I will leave to you to make a call on whether this is an ok "minimal file" or not. You can still delete all but MAani_matGlass_v09 material from the library.blend and still get the crash, roughly:

for m in D.materials:
  if m.name != 'ani_matGlass_v09':
    m.user_clear()
# save, re-open, save

@mont29 this is a very interesting issue. If I start deleting things from the file the issue goes away. That said it is not really a "simple file". I will leave to you to make a call on whether this is an ok "minimal file" or not. You can still delete all but MAani_matGlass_v09 material from the library.blend and still get the crash, roughly: ``` for m in D.materials: if m.name != 'ani_matGlass_v09': m.user_clear() # save, re-open, save ```

Added subscriber: @lichtwerk

Changed status from 'Needs Triage' to: 'Confirmed'

Here are some simplified files:
src.blend
main.blend

Issue goes away if

- you delete Plane in the main file [linked -- also uses ani_matGlass_v09], save and reopen, ani_matGlass_v09 is then single-user on Cube, make local then works.
or - in the src file you delete those two OSL shader nodes:

Here are some simplified files: [src.blend](https://archive.blender.org/developer/F8814808/src.blend) [main.blend](https://archive.blender.org/developer/F8814806/main.blend) Issue goes away if - - [x] you delete `Plane` in the `main` file [linked -- also uses `ani_matGlass_v09`], save and reopen, `ani_matGlass_v09` is then single-user on `Cube`, make local then works. - or - [x] in the `src` file you delete those two OSL shader nodes: ![image.png](https://archive.blender.org/developer/F8814825/image.png)

This issue was referenced by cbb5201f09

This issue was referenced by cbb5201f09bd88a5c7e58fe74ee4178fb2aec27f

This issue was referenced by ddbf41d88d

This issue was referenced by ddbf41d88d43a544c65c18f756fca7ab28ce5620

Changed status from 'Confirmed' to: 'Resolved'

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Crash on making material local #80104