Rendering an animation freezes at random frame #102667

New Issue

Jan Sugarek · 2022-11-21T21:32:04+01:00

Jan Sugarek commented

2022-11-21 21:32:04 +01:00

System Information
Operating system: Windows 11 Pro Version 10.0.22623 Build 22623
Graphics card: RTX4090 MSI Ventus 3X OC

Blender Version
Broken: 3.4 - 3915f5300a and later builds
Worked: 3.4 - e6902d19a0, 3.3.1

Short description of error
I start-up rendering a sequence and suddenly GPU utilization drops down to 0 and blender environment is freezed (not possible do any action in neither in render window or main blender window). blender logs doesn't show any crashes - It just get stucked without consuming CPU/GPU. I also tried different versions of Nvidia drivers and without any effect.

Exact steps for others to reproduce the error
Easiest scene I've tried with freezing:
3.5_gpu.blend
blender_system_info.txt
blender_debug_output.txt

simplified
3.5_gpu.blend

**System Information** Operating system: Windows 11 Pro Version 10.0.22623 Build 22623 Graphics card: RTX4090 MSI Ventus 3X OC **Blender Version** Broken: 3.4 - 3915f5300ad2 and later builds Worked: 3.4 - e6902d19a0d8, 3.3.1 **Short description of error** I start-up rendering a sequence and suddenly GPU utilization drops down to 0 and blender environment is freezed (not possible do any action in neither in render window or main blender window). blender logs doesn't show any crashes - It just get stucked without consuming CPU/GPU. I also tried different versions of Nvidia drivers and without any effect. **Exact steps for others to reproduce the error** Easiest scene I've tried with freezing: [3.5_gpu.blend](https://archive.blender.org/developer/F13957239/3.5_gpu.blend) [blender_system_info.txt](https://archive.blender.org/developer/F13957016/blender_system_info.txt) [blender_debug_output.txt](https://archive.blender.org/developer/F13957017/blender_debug_output.txt) - - - simplified [3.5_gpu.blend](https://archive.blender.org/developer/F13960804/3.5_gpu.blend)

Jan Sugarek commented

2022-11-21 21:32:04 +01:00

Added subscriber: @shugo

Richard Antalik commented

2022-11-21 22:00:53 +01:00

Added subscriber: @iss

Richard Antalik commented

2022-11-21 22:00:53 +01:00

How often does renderin freeze? I was able to rener 15 frames without any issue.

Jan Sugarek commented

2022-11-21 22:10:08 +01:00

Scene above freezes almost everytime (sometimes 300th frame, sometimes 60th and even later around 600-700).

I'm trying to narrow down problematic versions - I currently tested some other builds with these results:
Freezing occured: blender-3.4.0-alpha+master.3915f5300ad2-windows.amd64-release (Oct 20, 2022)
Looks ok blender-3.4.0-alpha+master.104fd82f7428-windows.amd64-release ( Oct 07, 2022 )

Curently I'm testing version from Oct 15th - blender-3.4.0-alpha+master.bc06fcca47ca-windows.amd64-release (this looks good until writing this post) I'll let you know next day if i am able to find closest versions to each other - working vs freezing.

Scene above freezes almost everytime (sometimes 300th frame, sometimes 60th and even later around 600-700). I'm trying to narrow down problematic versions - I currently tested some other builds with these results: **Freezing occured**: blender-3.4.0-alpha+master.3915f5300ad2-windows.amd64-release (Oct 20, 2022) **Looks ok** blender-3.4.0-alpha+master.104fd82f7428-windows.amd64-release ( Oct 07, 2022 ) Curently I'm testing version from Oct 15th - blender-3.4.0-alpha+master.bc06fcca47ca-windows.amd64-release (this looks good until writing this post) I'll let you know next day if i am able to find closest versions to each other - working vs freezing.

fwfeet commented

2022-11-21 22:26:08 +01:00

Added subscriber: @costa

fwfeet commented

2022-11-21 22:26:08 +01:00

Same here

Jan Sugarek commented

2022-11-22 17:04:19 +01:00

I think I found two consecutive builds when freezing started:
Looks ok - Can't reproduce freezing until version e6902d19a0 (3.4 beta, 4th build from Oct 19)
Regular random freezes - 3915f5300a (3.4 beta from Oct 20)

I can get stucked in all tested builds after (including) 3915f5300a - i've tested about 10-15 different builds
Everything seems to work before ( including ) e6902d19a0 - I've tested about 5-10 versions

All tested versions with the same results - 0% cpu, 0% gpu, memory still occupied, no errors/crashes in logs

I think I found two consecutive builds when freezing started: **Looks ok** - Can't reproduce freezing until version e6902d19a0d8 (3.4 beta, 4th build from Oct 19) **Regular random freezes** - 3915f5300ad2 (3.4 beta from Oct 20) I can get stucked in all tested builds after (including) 3915f5300ad2 - i've tested about 10-15 different builds Everything seems to work before ( including ) e6902d19a0d8 - I've tested about 5-10 versions All tested versions with the same results - 0% cpu, 0% gpu, memory still occupied, no errors/crashes in logs

Richard Antalik commented

2022-11-22 17:55:17 +01:00

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

Richard Antalik commented

2022-11-22 17:55:17 +01:00

@shugo Rendering 300 frames would need about hour of machine time here, But what is worse, that with such low reliability I can't be even sure, that I see the same bug you see. Can you somehow increase chance of crashing? Usually crash is caused by some object or setting, so having more problematic objects or changing render settings may increase chance of crashing.

Alternatively if you can setup to build Blender you can try to bisect the issue, since you have narrowed it down quite well

@shugo Rendering 300 frames would need about hour of machine time here, But what is worse, that with such low reliability I can't be even sure, that I see the same bug you see. Can you somehow increase chance of crashing? Usually crash is caused by some object or setting, so having more problematic objects or changing render settings may increase chance of crashing. Alternatively if you can setup to build Blender you can try to bisect the issue, since you have narrowed it down quite well

Jan Sugarek commented

2022-11-22 18:09:38 +01:00

Can you try the same scene with lowered setings - optix, max 1 sample, camera depth of field 0.001

I can end up getting stucked in seconds using this file: 3.5_gpu.blend

Can you try the same scene with lowered setings - optix, max 1 sample, camera depth of field 0.001 I can end up getting stucked in seconds using this file: [3.5_gpu.blend](https://archive.blender.org/developer/F13960804/3.5_gpu.blend)

Richard Antalik commented

2022-11-22 18:42:11 +01:00

Thanks for optimizing the file, I was unable to reproduce the issue with build 24bd2d0bea. All 900 frames were rendered.

Just to be sure, did you overclock the GPU? This would cause problems with cuda/optix renders.

Thanks for optimizing the file, I was unable to reproduce the issue with build 24bd2d0bea. All 900 frames were rendered. Just to be sure, did you overclock the GPU? This would cause problems with cuda/optix renders.

Jan Sugarek commented

2022-11-25 15:14:04 +01:00

I've tried today's build ( November 25th ) and it works now without freezing.

Richard Antalik commented

2022-11-25 19:37:48 +01:00

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

Richard Antalik closed this issue

2022-11-25 19:37:48 +01:00

Richard Antalik commented

2022-11-25 19:37:48 +01:00

Thanks for info, will close then.

fwfeet commented

2022-11-25 19:49:45 +01:00

I tried it on my PC moments ago, I downloaded the latest build and I have a freeze at frame 7...

Richard Antalik commented

2022-11-25 20:01:46 +01:00

@costa I would recommend to create new report, unless you are testing exact same file and your debug output blender_debug_output.txt looks about the same as well. Please upload debug output if you can, so I can check it.

@costa I would recommend to create new report, unless you are testing exact same file and your debug output `blender_debug_output.txt` looks about the same as well. Please upload debug output if you can, so I can check it.

fwfeet commented

2022-11-25 20:05:19 +01:00

I tested same file 3.5 GPU, but I don't know how to make debug output
Edit: I can accelerate blender freeze much faster if i alt tab

I tested same file 3.5 GPU, but I don't know how to make debug output Edit: I can accelerate blender freeze much faster if i alt tab

fwfeet commented

2022-11-25 20:12:48 +01:00

I tried making a debug file but it's not responding

I tried making a debug file but it's not responding ![image.png](https://archive.blender.org/developer/F13969169/image.png)

Richard Antalik commented

2022-11-25 20:13:53 +01:00

In #102667#1451472, @costa wrote:
I tested same file 3.5 GPU, but I don't know how to make debug output
Edit: I can accelerate blender freeze much faster if i alt tab

Run file blender_debug_log.cmd instead of blender.exe, after crash upload created files.

> In #102667#1451472, @costa wrote: > I tested same file 3.5 GPU, but I don't know how to make debug output > Edit: I can accelerate blender freeze much faster if i alt tab Run file `blender_debug_log.cmd` instead of `blender.exe`, after crash upload created files.

fwfeet commented

2022-11-25 20:17:32 +01:00

Here I managed to do this, thanks :)

blender_system_info.txt

blender_debug_output.txt

Here I managed to do this, thanks :) [blender_system_info.txt](https://archive.blender.org/developer/F13969189/blender_system_info.txt) [blender_debug_output.txt](https://archive.blender.org/developer/F13969190/blender_debug_output.txt)

Richard Antalik commented

2022-11-25 20:21:23 +01:00

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

Richard Antalik reopened this issue

2022-11-25 20:21:23 +01:00

Richard Antalik commented

2022-11-25 20:21:23 +01:00

Thanks for files, it seems to be same issue, so will reopen.

Can you check if crash happens when you run file blender_factory_startup.cmd?

Thanks for files, it seems to be same issue, so will reopen. Can you check if crash happens when you run file `blender_factory_startup.cmd`?

Jan Sugarek commented

2022-11-25 20:26:05 +01:00

I'm sorry guys, I tried it again and freezing still occurs :( It was probably just a coincidence that i ran through the whole sequence withou freezing before.

Jan Sugarek commented

2022-11-25 20:36:13 +01:00

@costa What about rendering with DEPTH of FIELD turned off? Don't you have more stable results after this?

@costa What about rendering with DEPTH of FIELD turned **off**? Don't you have more stable results after this?

fwfeet commented

2022-11-25 20:36:17 +01:00

Here is factory reset, I changed it to gpu

blender_system_info.txt

blender_debug_output.txt

Here is factory reset, I changed it to gpu [blender_system_info.txt](https://archive.blender.org/developer/F13969253/blender_system_info.txt) [blender_debug_output.txt](https://archive.blender.org/developer/F13969254/blender_debug_output.txt)

fwfeet commented

2022-11-26 13:24:18 +01:00

@shugo not really, still freezes

Richard Antalik commented

2022-11-27 18:41:09 +01:00

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

Richard Antalik commented

2022-11-27 18:41:09 +01:00

Added subscriber: @PratikPB2123

Richard Antalik commented

2022-11-27 18:41:09 +01:00

Thanks all for info. There is no crash being reported in logs, that leads me to believe, that this is related to cuda/optix backend. But since there are 2 different GPUs involved it seems strange, since I was able to render the file without any issues.

@PratikPB2123 Can you reproduce this one?

Thanks all for info. There is no crash being reported in logs, that leads me to believe, that this is related to cuda/optix backend. But since there are 2 different GPUs involved it seems strange, since I was able to render the file without any issues. @PratikPB2123 Can you reproduce this one?

Pratik Borhade commented

2022-11-28 03:52:43 +01:00

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

Pratik Borhade commented

2022-11-28 03:52:43 +01:00

Hi, can not reproduce either in 3.4 buildbot build. I just have to start render animation once file is opened, right?

camera depth of field 0.001

This would make no difference when focus object is selected

Just to be sure, did you overclock the GPU? This would cause problems with cuda/optix renders.

This is still unanswered :)

Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 512.78```

Hi, can not reproduce either in 3.4 buildbot build. I just have to start render animation once file is opened, right? > camera depth of field 0.001 This would make no difference when focus object is selected > Just to be sure, did you overclock the GPU? This would cause problems with cuda/optix renders. This is still unanswered :) - - - ```**System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 512.78```

Jan Sugarek commented

2022-11-28 07:12:12 +01:00

I'm sorry I didn't answer - GPU is in default state, no forced overclocking (just factory boost clock).

Pratik Borhade commented

2022-11-28 07:31:24 +01:00

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

Jan Sugarek commented

2022-12-19 18:26:23 +01:00

3.4.0 stable 175bd38201 still freezes.
But after few days I tried today 3.4.1 RC b87bcd3f8f and it did not get stuck yet.

maybe this commit fixed it? https://developer.blender.org/rB6325174a753fc19effb1039f1872287383fbd787

@costa Can you try it and confirm it?

3.4.0 stable 175bd3820151 still freezes. But after few days I tried today 3.4.1 RC b87bcd3f8fe1 and **it did not get stuck yet.** maybe this commit fixed it? https://developer.blender.org/rB6325174a753fc19effb1039f1872287383fbd787 @costa Can you try it and confirm it?

Germano Cavalcante commented

2022-12-20 14:35:45 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2022-12-20 14:35:45 +01:00

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

Germano Cavalcante commented

2022-12-20 14:35:45 +01:00

It's good to know that the issue appears to have been resolved in the 3.4.1 RC. I'm marking it as 'Needs Information from User' for now until we have further confirmation.

Richard Antalik commented

2023-01-08 19:09:21 +01:00

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

Richard Antalik closed this issue

2023-01-08 19:09:21 +01:00

Richard Antalik commented

2023-01-08 19:09:21 +01:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

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Rendering an animation freezes at random frame #102667