Render crashes on "computing shadow transparency cube" with EXCEPTION_ACCESS_VIOLATION #92462

New Issue

AgentA1cr · 2021-10-25T05:02:14+02:00

AgentA1cr commented

2021-10-25 05:02:14 +02:00

System Information
Operating system: Windows-10-10.0.19042-SP0 64 Bits
Graphics card: Quadro K3100M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 426.78

Blender Version
Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-10-24 18:24, hash: 3e75f70acd
Worked: 2.93.6

Short description of error
When rendering this model in Cycles with both of the non-default materials enabled, Blender crashes when it reaches the "computing shadow transparency cube" stage. I have been unable to reproduce the crash with only one of the two materials enabled, or with both materials applied to the default cube, rather than to this model.

Exact steps for others to reproduce the error
Open the attached .blend file
Click "Render Image"
Prowler Crash Test 2.blend
Prowler Crash Test 2.crash.txt

**System Information** Operating system: Windows-10-10.0.19042-SP0 64 Bits Graphics card: Quadro K3100M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 426.78 **Blender Version** Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-10-24 18:24, hash: `3e75f70acd` Worked: 2.93.6 **Short description of error** When rendering this model in Cycles with both of the non-default materials enabled, Blender crashes when it reaches the "computing shadow transparency cube" stage. I have been unable to reproduce the crash with only one of the two materials enabled, or with both materials applied to the default cube, rather than to this model. **Exact steps for others to reproduce the error** Open the attached .blend file Click "Render Image" [Prowler Crash Test 2.blend](https://archive.blender.org/developer/F11524505/Prowler_Crash_Test_2.blend) [Prowler Crash Test 2.crash.txt](https://archive.blender.org/developer/F11524498/Prowler_Crash_Test_2.crash.txt)

AgentA1cr commented

2021-10-25 05:02:14 +02:00

Added subscriber: @AgentA1cr

Richard Antalik commented

2021-10-26 05:52:50 +02:00

Added subscriber: @iss

Richard Antalik commented

2021-10-26 05:52:50 +02:00

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

Richard Antalik commented

2021-10-26 05:52:50 +02:00

Can't reproduce this issue.
Just to clarify, you are rendering on CPU correct?

Can't reproduce this issue. Just to clarify, you are rendering on CPU correct?

AgentA1cr commented

2021-10-26 16:06:21 +02:00

Correct.
On Sunday, when I originally made the bug report, it was crashing quite consistently. Today, after disabling and re-enabling various addons, I have been unable to reproduce the crash in the simplified file, though the original continues to produce the same crash.
I've downloaded the latest alpha, and will check whether the issue persists in that version.

Correct. On Sunday, when I originally made the bug report, it was crashing quite consistently. Today, after disabling and re-enabling various addons, I have been unable to reproduce the crash in the simplified file, though the original continues to produce the same crash. I've downloaded the latest alpha, and will check whether the issue persists in that version.

AgentA1cr commented

2021-10-26 17:12:07 +02:00

The crash continues to occur in blender-3.0.0-alpha+master.32cc9ff03746-windows.amd64-release.
I've pared down the original file, and found another necessary condition for the crash. The hair particle system on the "Prowler" mesh must be enabled for the crash to occur.

Prowler Crash Test 2.blend
Prowler Crash Test 2.crash.txt

The crash continues to occur in blender-3.0.0-alpha+master.32cc9ff03746-windows.amd64-release. I've pared down the original file, and found another necessary condition for the crash. The hair particle system on the "Prowler" mesh must be enabled for the crash to occur. ![Animation.gif](https://archive.blender.org/developer/F11524845/Animation.gif) [Prowler Crash Test 2.blend](https://archive.blender.org/developer/F11524505/Prowler_Crash_Test_2.blend) [Prowler Crash Test 2.crash.txt](https://archive.blender.org/developer/F11524498/Prowler_Crash_Test_2.crash.txt)

Richard Antalik commented

2021-10-27 04:38:48 +02:00

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

William Leeson commented

2021-10-29 13:30:47 +02:00

Added subscriber: @leesonw

William Leeson commented

2021-10-29 13:30:47 +02:00

Seems to crash in the SVM code when trying to access a texture that is not initialized see P2559 for the callstack.

Seems to crash in the SVM code when trying to access a texture that is not initialized see [P2559](https://archive.blender.org/developer/P2559.txt) for the callstack.

William Leeson commented

2021-10-29 13:32:58 +02:00

Good to get this fixed for 3.0 as it does not happen on 2.93 and could maybe cause real issues.