EXCEPTION_ACCESS_VIOLATION crash on opening file #48415

New Issue

Dan · 2016-05-13T00:02:04+02:00

Dan commented

2016-05-13 00:02:04 +02:00

System Information
OS: Windows 7 Home Premium 64-bit
CPU: AMD A8-3800 APU
GPU: AMD Radeon HD 6550D (part of APU)

Blender Version
2.77a abf6f08

Short description of error
I was working on one of my projects when filling a face caused Blender to crash immediately. After that, Blender crashes whenever the file is opened.

Exact steps for others to reproduce the error

Open .blend file.

Details
The file uses Cycles with CPU rendering. There is nothing linked to another .blend file, the only external files used are textures. This is the only affected file, all other files and features work as normal.

**System Information** OS: Windows 7 Home Premium 64-bit CPU: AMD A8-3800 APU GPU: AMD Radeon HD 6550D (part of APU) **Blender Version** 2.77a abf6f08 **Short description of error** I was working on one of my projects when filling a face caused Blender to crash immediately. After that, Blender crashes whenever the file is opened. **Exact steps for others to reproduce the error** 1. Open .blend file. **Details** The file uses Cycles with CPU rendering. There is nothing linked to another .blend file, the only external files used are textures. This is the only affected file, all other files and features work as normal.

Dan commented

2016-05-13 00:02:04 +02:00

Changed status to: 'Open'

Dan commented

2016-05-13 00:02:04 +02:00

Added subscriber: @mkPlasma

Dan commented

2016-05-13 00:06:31 +02:00

Forgot to mention this: The error seems to appear in the console among some stuff about shape keys. There is nothing else abnormal in the console.

Dan commented

2016-05-13 01:32:32 +02:00

File wasn't posted before: Reimu.blend

File wasn't posted before: [Reimu.blend](https://archive.blender.org/developer/F310355/Reimu.blend)

Daniel Rivera commented

2016-05-13 03:25:47 +02:00

Added subscriber: @dr2d4

Daniel Rivera commented

2016-05-13 06:37:50 +02:00

Added subscriber: @mont29

Daniel Rivera commented

2016-05-13 06:37:50 +02:00

This comment was removed by @dr2d4

*This comment was removed by @dr2d4*

Bastien Montagne commented

2016-05-13 14:53:19 +02:00

Not sure why you summoned me here in particular…

Not so easy to understand what's going on here, from what I understand you have a hair psys with effectors, one of them being a surface one, which seems to assume relevant effector's modifier has already been computed when that effector is evaluated in the psys, which is clearly not the case (surfacemodifier->bvhtree is indeed NULL).

Not familiar at all with this, will need more digging. In the mean time, if you could feature the same .blend just before it goes unusable, with exact step to make it crash, would help a lot.

Not sure why you summoned me here in particular… Not so easy to understand what's going on here, from what I understand you have a hair psys with effectors, one of them being a surface one, which seems to assume relevant effector's modifier has already been computed when that effector is evaluated in the psys, which is clearly not the case (surfacemodifier->bvhtree is indeed NULL). Not familiar at all with this, will need more digging. In the mean time, if you could feature the same .blend just before it goes unusable, with exact step to make it crash, would help a lot.

Dan commented

2016-05-13 23:49:40 +02:00

In #48415#374185, @mont29 wrote:
Not sure why you summoned me here in particular…

Not so easy to understand what's going on here, from what I understand you have a hair psys with effectors, one of them being a surface one, which seems to assume relevant effector's modifier has already been computed when that effector is evaluated in the psys, which is clearly not the case (surfacemodifier->bvhtree is indeed NULL).

Not familiar at all with this, will need more digging. In the mean time, if you could feature the same .blend just before it goes unusable, with exact step to make it crash, would help a lot.

I can restore the file to an earlier working version, unfortunately, I had done some work on it before the crash. Even the .blend1 file became affected somehow. I'll try to redo my work on a previous version to see if I can get it to occur again, although I'm not sure it will work.

> In #48415#374185, @mont29 wrote: > Not sure why you summoned me here in particular… > > Not so easy to understand what's going on here, from what I understand you have a hair psys with effectors, one of them being a surface one, which seems to assume relevant effector's modifier has already been computed when that effector is evaluated in the psys, which is clearly not the case (surfacemodifier->bvhtree is indeed NULL). > > Not familiar at all with this, will need more digging. In the mean time, if you could feature the same .blend just before it goes unusable, with exact step to make it crash, would help a lot. I can restore the file to an earlier working version, unfortunately, I had done some work on it before the crash. Even the .blend1 file became affected somehow. I'll try to redo my work on a previous version to see if I can get it to occur again, although I'm not sure it will work.

Dan commented

2016-05-14 04:43:31 +02:00

I was not able to reproduce the crash with the restored file. If it helps, the object I was working on when the crash occurred was the hair collision object, and it did have a surface force modifier.

Bastien Montagne commented

2016-06-01 15:26:42 +02:00

OK, found the issue - it’s when you save your .blend while a surface object is in Edit mode. ;)

Bastien Montagne self-assigned this 2016-06-01 15:26:50 +02:00

blender-admin commented

2016-06-01 15:29:19 +02:00

This issue was referenced by b1704d18a1

This issue was referenced by b1704d18a1cc15f0dbb5fe6e27d80f0fae4b9e72

Bastien Montagne commented

2016-06-01 15:29:41 +02:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2016-06-01 15:29:41 +02:00

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EXCEPTION_ACCESS_VIOLATION crash on opening file #48415