Cycles GPU render crashes in 2.92, 2.93 on Ubuntu with rx580 #85099

New Issue

Svend Sønderby · 2021-01-27T10:30:03+01:00

Svend Sønderby commented

2021-01-27 10:30:03 +01:00

System Information
Operating system: Ubuntu 20.04.1 LTS and popOS 20.10
Graphics card: Radeon RX 580

Blender Version
Broken: 2.93.0 Alpha, branch: master, commit date: 2021-01-27 04:28, hash: fc669a4c3e
2.92.0 Beta

Worked: 2.83.1, 2.90.1, 2.91.2

Short description of error
Blender crashes in 2.92 and 2.93 when loading render kernels in cycles GPU render.

Tried both download from blender.org and build from master. Older versions works fine.

Exact steps for others to reproduce the error

Preferences / System, select OpenCL and RX580
Set render engine to Cycles and GPU Compute
Set viewport to rendered or press F12 to render

      .... Starts loading render kernels and blender crashes

system-info.txt

blender.crash.txt

blender_debug_output.txt

**System Information** Operating system: Ubuntu 20.04.1 LTS and popOS 20.10 Graphics card: Radeon RX 580 **Blender Version** Broken: 2.93.0 Alpha, branch: master, commit date: 2021-01-27 04:28, hash: fc669a4c3ec0 2.92.0 Beta Worked: 2.83.1, 2.90.1, 2.91.2 **Short description of error** Blender crashes in 2.92 and 2.93 when loading render kernels in cycles GPU render. Tried both download from blender.org and build from master. Older versions works fine. **Exact steps for others to reproduce the error** 1) Preferences / System, select OpenCL and RX580 2) Set render engine to Cycles and GPU Compute 3) Set viewport to rendered or press F12 to render ``` .... Starts loading render kernels and blender crashes ``` [system-info.txt](https://archive.blender.org/developer/F9600163/system-info.txt) [blender.crash.txt](https://archive.blender.org/developer/F9600164/blender.crash.txt) [blender_debug_output.txt](https://archive.blender.org/developer/F9600165/blender_debug_output.txt)

Svend Sønderby commented

2021-01-27 10:30:03 +01:00

Added subscriber: @Svend

Germano Cavalcante commented

2021-01-28 14:40:15 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2021-01-28 14:40:15 +01:00

I don't know if it can help, but I see in the logs some messages of "not found in cache" and "not found on disk" so...
Try to delete the cache files in /home/svend/.cache/ in order to recreate them.

I don't know if it can help, but I see in the logs some messages of `"not found in cache"` and `"not found on disk"` so... Try to delete the cache files in `/home/svend/.cache/` in order to recreate them.

Germano Cavalcante commented

2021-01-29 13:57:00 +01:00

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

Germano Cavalcante commented

2021-01-29 13:57:00 +01:00

Did deleting the cache files make any difference?

Svend Sønderby commented

2021-01-29 14:13:17 +01:00

Thanks for the suggestion!! I was wondering where the render kernels where saved and completely missed the cycles folder next to the blender folder.

No unfortunately not. Deleting the kernels; 2.92, 2.93 still crashes. 2.83 and 2.90 fine. 2.91 works but writes “Split kernel error: failed to load kernel_lamp_emmission” in the view port while building the kernel and you have to “reload” it by clicking another view and then back to render view. After this it works fine.

I thought maybe the load kernel_lamp_emmission might also be the problem in 2.92-3 because it was in the debug_output file ??!?

Tried everything I could think if incl removing/installing the AMD OpenCL driver from both version 20.10 and 20.40. Did also delete everything in cache as sugested, not just kernels .

Can anyone confirm that they can make the cycles GPU render kernels in ubuntu with a rx580 (or similar amd card) in either 2.92 or 2.93? If so I’ll try a fresh system install.

Thanks for the help and have a nice weekend when you get to it :)

Thanks for the suggestion!! I was wondering where the render kernels where saved and completely missed the cycles folder next to the blender folder. No unfortunately not. Deleting the kernels; 2.92, 2.93 still crashes. 2.83 and 2.90 fine. 2.91 works but writes “Split kernel error: failed to load kernel_lamp_emmission” in the view port while building the kernel and you have to “reload” it by clicking another view and then back to render view. After this it works fine. I thought maybe the load kernel_lamp_emmission might also be the problem in 2.92-3 because it was in the debug_output file ??!? Tried everything I could think if incl removing/installing the AMD OpenCL driver from both version 20.10 and 20.40. Did also delete everything in cache as sugested, not just kernels . Can anyone confirm that they can make the cycles GPU render kernels in ubuntu with a rx580 (or similar amd card) in either 2.92 or 2.93? If so I’ll try a fresh system install. Thanks for the help and have a nice weekend when you get to it :)

Germano Cavalcante commented

2021-01-29 14:21:50 +01:00

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

Germano Cavalcante commented

2021-01-29 14:21:50 +01:00

This “Split kernel error: failed to load kernel_lamp_emmission” is a known issue that appeared in recent AMD drivers for this GPU.
The strange thing is that this problem has only been seen on windows.
See #84461 (Cycles: Split kernel error with OpenCL)

So I'm not sure if it's a duplicate.

This `“Split kernel error: failed to load kernel_lamp_emmission”` is a known issue that appeared in recent AMD drivers for this GPU. The strange thing is that this problem has only been seen on windows. See #84461 (Cycles: Split kernel error with OpenCL) So I'm not sure if it's a duplicate.

Svend Sønderby commented

2021-01-29 14:57:13 +01:00

The machine is actually a MacPro so I guess we have a full circle ;)
(and yes I am booting directly in to ubuntu/pop, not a virtual machine or whatever.)

Not sure either. One difference to #84461 is that even though I get the same error it actually works in 2.91 in my case. It was rendering happy as Larry for 5-6 hours the other day. Do you know what exactly the kernel_lamp_emmission does? Maybe my renders didn’t actually need it. I’ll be happy to run a test render if it can help.

The machine is actually a MacPro so I guess we have a full circle ;) (and yes I am booting directly in to ubuntu/pop, not a virtual machine or whatever.) Not sure either. One difference to #84461 is that even though I get the same error it actually works in 2.91 in my case. It was rendering happy as Larry for 5-6 hours the other day. Do you know what exactly the kernel_lamp_emmission does? Maybe my renders didn’t actually need it. I’ll be happy to run a test render if it can help.

Jan Moren commented

2021-02-03 12:58:59 +01:00

Added subscriber: @JanneM

Svend Sønderby commented

2021-02-03 14:15:59 +01:00

Tried a completely fresh Pop OS 20.10 install and OpenCL from 20.40. Same result :(

2.83.12 works
2.91.2 Split kernel error: failed to load kernel_lamp_emmission, but appears to work fine when kernels are loaded again.
2.92.0 Crash

Maybe #84579 is the same problem??

Tried a completely fresh Pop OS 20.10 install and OpenCL from 20.40. Same result :( 2.83.12 works 2.91.2 Split kernel error: failed to load kernel_lamp_emmission, but appears to work fine when kernels are loaded again. 2.92.0 Crash Maybe #84579 is the same problem??

Ian Andolina commented

2021-03-08 10:05:40 +01:00

Added subscriber: @iandol

Wojciech Zakroczymski commented

2021-03-11 09:15:47 +01:00

Added subscriber: @WojciechZakroczymski

Svend Sønderby commented

2021-03-21 11:47:57 +01:00

Added subscriber: @thomas-29

Svend Sønderby commented

2021-03-21 11:47:57 +01:00

Workaround for cycles kernel build crash on RX5x0 on Linux

Huge thank you to @thomas-29 for sharing this in #86610 !!!

After looking around I did the same just in a different place. Looks like it was introduced in Cycles: Enable NanoVDB usage by default, bd6bfba64d

By reverting this I can now render with my RX580 again

Deleted old build and cycles kernel cache in .local
Revert bd6bfba64d by changing line 206 to off in CMakeLists.txt
Build master

The first time blender builds the kernels it gives an error (failed to load kernel_path_init) - Assume it’s the same problem as in 2.91.x described above - Try again and it now works :)

To test I rendered bmw27, Classrom. No problems.

Downside; no rendering of volume objects on GPU. Did not test this but, Thomas mentioned it.

Whats the best way to friendly poke the cycles team? Maybe knowing that NanoVDB seems to be the cause there is a simple fix for the AMD cards?
Hopefully this would also fix;

#86610
#85698
#84579
#86182
#86248 (Radeon Pro WX5100)
#85099

Update: As I was writing this, it looks like thomas-29 #86610 just found a solution so it also works with volumes :) Thanks !

Workaround for cycles kernel build crash on RX5x0 on Linux Huge thank you to @thomas-29 for sharing this in #86610 !!! After looking around I did the same just in a different place. Looks like it was introduced in Cycles: Enable NanoVDB usage by default, bd6bfba64d By reverting this I can now render with my RX580 again 1. Deleted old build and cycles kernel cache in .local 2. Revert bd6bfba64dad by changing line 206 to off in CMakeLists.txt 3. Build master The first time blender builds the kernels it gives an error (failed to load kernel_path_init) - Assume it’s the same problem as in 2.91.x described above - Try again and it now works :) To test I rendered bmw27, Classrom. No problems. Downside; no rendering of volume objects on GPU. Did not test this but, Thomas mentioned it. Whats the best way to friendly poke the cycles team? Maybe knowing that NanoVDB seems to be the cause there is a simple fix for the AMD cards? Hopefully this would also fix; #86610 #85698 #84579 #86182 #86248 (Radeon Pro WX5100) #85099 Update: As I was writing this, it looks like thomas-29 #86610 just found a solution so it also works with volumes :) Thanks !

Svend Sønderby commented

2021-04-11 15:18:46 +02:00

Thanks, did a fresh build and 91c44fe885 seems to have removed the crash :) Do I change the status or is that done by an admin?

The split kernel error is still there!

First time Blender is compiling render kernels I get the following error:

    Split kernel error: failed to load kernel_subsurface_scatter

When I try again it's much faster compiling and all now works fine.

I don't think it has anything to do with subsurface scatter. The error has been there since 2.91 and other versions failed to load other kernel_whatever. Did a few render tests with subsurface scatter, all fine as far as I can tell.

Is this a known bug? or should i make a separate bug report for it?

Thanks, did a fresh build and 91c44fe88547 seems to have removed the crash :) Do I change the status or is that done by an admin? The split kernel error is still there! First time Blender is compiling render kernels I get the following error: ``` Split kernel error: failed to load kernel_subsurface_scatter ``` When I try again it's much faster compiling and all now works fine. I don't think it has anything to do with subsurface scatter. The error has been there since 2.91 and other versions failed to load other kernel_whatever. Did a few render tests with subsurface scatter, all fine as far as I can tell. Is this a known bug? or should i make a separate bug report for it?

Germano Cavalcante commented

2021-04-12 15:01:34 +02:00

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

Germano Cavalcante closed this issue

2021-04-12 15:01:34 +02:00

Germano Cavalcante self-assigned this 2021-04-12 15:01:34 +02:00

Germano Cavalcante commented

2021-04-12 15:01:34 +02:00

Thanks for the info.
The split kernel appears to be a different problem and is probably related to #84461 (Cycles: Split kernel error with OpenCL).
So I will close this report.

Thanks for the info. The split kernel appears to be a different problem and is probably related to #84461 (Cycles: Split kernel error with OpenCL). So I will close this report.

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Cycles GPU render crashes in 2.92, 2.93 on Ubuntu with rx580 #85099