Cycles AMD OpenCL compiler crash with RX 5700 #79198

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: AMD Radeon R9 200 Series ATI Technologies Inc. 4.5.13587 Core Profile Context 20.2.2 26.20.15019.19000

Blender Version
2.91 (Win64) - with the gfx drivers package: win10-radeon-software-adrenalin-2020-edition-20.4.2-may25

Last working GFX drivers package version
win10-radeon-software-adrenalin-2020-edition-20.4.2-may25

Broken GFX drivers package versions
win10-radeon-software-adrenalin-2020-edition-20.5.1-hws-june25
win10-radeon-software-adrenalin-2020-edition-20.8.1-aug4

Short description of error
Crashes several seconds after F12 press

Exact steps for others to reproduce the error
Select Cycles GPU for rendering on the default cube, Press F12, wait a few seconds, crash and exit application.

Added subscriber: @highonsnow

The model is quite a tall model, approx 208m high. The original version of the model which is scaled much shorter (exact same mesh, just the non-resized version, units show only a approx 5m tall) appears to render fine. The crash is experienced when attempting to use Cycles GPU rendering of the larger scaled (same) model.

There is only one object in the .blend. It's a complex mesh however.

Added subscriber: @HooglyBoogly

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

Thanks for the report. We will need more information to properly look into this though.

Could you provide your system info file Help > Save System Info?
Also please upload the .blend file here. When you do, try to lower its size by removing any objects / textures etc.. that aren't needed to cause the crash.
Please provide a version of Blender that last worked as expected (without the crash)

Hi Hans,

Thanks for following up on it.

system-info.txt

Unfortunately I cannot provide the .blend file as it's privileged information. There are currently no textures or additional objects in the file, just the one complex mesh.

Is there a method of doing a stack trace prior to the crash, to determine what Blender was doing right up until the moment of the crash, and I can try to provide that?

I'll see if I can find an older version of Blender that works with that file and identify a working version. I'm pressure sure the most recent 2.83 worked fine, but I'll double check that for you shortly.

I attempted to render the model after closing down a few applications and it appears it might have been a RAM availability issue. I would ask however, if it should be an expected behaviour for Blender to crash out and close down if RAM expectations were not being met. It might be worth looking into testing Blender in certain constrained environments, where there are other applications running and it's not getting the full juice that it would like for a large mesh to render on Cycles (GPU selected only).

I have 32GB of RAM, and I observe approx 16-20GB in use varying on the day, prior to Blender.

Just to clarify, I wasn't operating at full RAM at the time of render, there was still plenty of RAM available for Blender at the time of crashing.

Ok, so I'm having a rendering issue on 2.83 also, when trying to render via Cycles and GPU selected.

Memory usage was 10GB at the time, GPU usage practically nil, CPU was more or less idle (3-7%), then rendering begins.

Here is the debug output for a different smaller scaled (original) file of the scaled up model, as I thought the issue was related to the scaled up model but it's in fact affecting the original model which used to render fine previously. I've also downgraded to 2.83 from 2.83.3 and I experience the same issue.

Memory does not fill up, GPU does very little if anything, CPU climbs to 100% for a little while, then backs off to approx 30-40%, showing that Blender is still doing something, and then it crashes and closes.

Switching to fully guarded memory allocator.
Blender 2.83.0
Build: 2020-06-03 12:41:58 Windows Release
argv- [x] = H:\Program Files\Blender Foundation\Blender 2.83\blender
argv- [x] = --debug
argv- [x] = --debug-cycles
argv- [x] = --python-expr
argv- [x] = import bpy; bpy.ops.wm.sysinfo(filepath=r'C:\Users\higho\AppData\Local\Temp\blender\debug_logs\blender_system_info.txt')
Read prefs: C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\config\userpref.blend
read file

Version 280 sub 39 date unknown hash unknown

found bundled python: H:\Program Files\Blender Foundation\Blender 2.83\2.83\python
I0726 11:20:59.944583 17160 blender_python.cpp:191] Debug flags initialized to:
CPU flags:

AVX2       : True
AVX        : True
SSE4.1     : True
SSE3       : True
SSE2       : True
BVH layout : BVH8
Split      : False

CUDA flags:

Adaptive Compile : False

OptiX flags:

CUDA streams : 1

OpenCL flags:

Device type    : ALL
Debug          : False
Memory limit   : 0

I0726 11:21:00.754741 17160 device_opencl.cpp:48] CLEW initialization succeeded.
I0726 11:21:00.870623 17160 device_cuda.cpp:56] CUEW initialization failed: Error opening the library
Read blend: D:\My Documents\Dropbox\3D Models\Model\Model - Blender 2.8 Working Model - First prep for Thickening - Mesh Tidy up.blend
read file D:\My Documents\Dropbox\3D Models\Model\Model - Blender 2.8 Working Model - First prep for Thickening - Mesh Tidy up.blend

Version 281 sub 16 date 2019-11-20 14:27 hash 26bd5ebd42e3

I0726 11:21:13.060684 17160 opencl_util.cpp:945] Enumerating devices for platform AMD Accelerated Parallel Processing.
I0726 11:21:13.060684 17160 opencl_util.cpp:981] Using more readable device name: AMD Radeon RX 5700
I0726 11:21:13.060684 17160 opencl_util.cpp:983] Adding new device AMD Radeon RX 5700.
I0726 11:21:15.556021 9396 util_task.cpp:329] Creating pool of 8 threads.
I0726 11:21:15.556021 9396 util_task.cpp:241] Detected 8 processors in active group.
I0726 11:21:15.556021 9396 util_task.cpp:251] Not setting thread group affinity.
I0726 11:21:15.558018 9396 device_opencl_impl.cpp:639] Creating new Cycles device for OpenCL platform AMD Accelerated Parallel Processing, device AMD Radeon RX 5700.
I0726 11:21:16.807884 10680 session.cpp:803] Requested features:
Experimental features: Off
Max nodes group: 0
Nodes features: 0
Use Hair: False
Use Object Motion: False
Use Camera Motion: False
Use Baking: False
Use Subsurface: False
Use Volume: False
Use Branched Integrator: False
Use Patch Evaluation: False
Use Transparent Shadows: False
Use Principled BSDF: False
Use Denoising: False
Use Displacement: False
Use Background Light: True
I0726 11:21:16.807884 10680 device_opencl_impl.cpp:759] Loading kernels for platform AMD Accelerated Parallel Processing, device AMD Radeon RX 5700.
I0726 11:21:16.807884 10680 opencl_util.cpp:298] OpenCL program base not found in cache.
I0726 11:21:16.849820 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ '.
I0726 11:21:16.850819 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_base_A29D126E1429FA10EF8B96CFC96FDD3F_F7783F096470B2D7C00BF2B71E77A3B9.clbin.
I0726 11:21:16.851819 10680 opencl_util.cpp:298] OpenCL program background not found in cache.
I0726 11:21:16.997292 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_TRANSPARENT__ -D__NO_SHADOW_TRICKS__ -D__NO_DENOISING__ -D__NO_SHADER_RAYTRACE__'.
I0726 11:21:17.001283 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_background_6FF84A6CB6720AC6DA991598F60BC046_1A681760DE957A44600BD172342AEACB.clbin.
I0726 11:21:17.002274 10680 opencl_util.cpp:298] OpenCL program split_subsurface_scatter not found in cache.
I0726 11:21:17.161111 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'.
I0726 11:21:17.162111 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_subsurface_scatter_6D6701693274FF39D4C41F76FE6247AB_634114D755AA520AB19A3361D6A83BDE.clbin.
I0726 11:21:17.163110 10680 opencl_util.cpp:298] OpenCL program split_direct_lighting not found in cache.
I0726 11:21:17.448817 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'.
I0726 11:21:17.473791 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_direct_lighting_6D6701693274FF39D4C41F76FE6247AB_BD149D753D55236131FAEA1D3839FE33.clbin.
I0726 11:21:17.476788 10680 opencl_util.cpp:298] OpenCL program split_indirect_background not found in cache.
I0726 11:21:17.726533 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'.
I0726 11:21:17.732527 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_indirect_background_6D6701693274FF39D4C41F76FE6247AB_015A7F5753AC35C5A7BE76F23B390008.clbin.
I0726 11:21:17.733526 10680 opencl_util.cpp:298] OpenCL program split_shader_eval not found in cache.
I0726 11:21:17.953301 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'.
I0726 11:21:17.957298 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_shader_eval_6D6701693274FF39D4C41F76FE6247AB_7D3561E30B694F06B0FF412AB7D37A13.clbin.
I0726 11:21:17.957298 10680 opencl_util.cpp:298] OpenCL program split_lamp_emission not found in cache.
I0726 11:21:18.150606 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'.
I0726 11:21:18.153602 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_lamp_emission_6D6701693274FF39D4C41F76FE6247AB_327D1E973FEDB993C582FF40FADA7366.clbin.
I0726 11:21:18.154601 10680 opencl_util.cpp:298] OpenCL program split_holdout_emission_blurring_pathtermination_ao not found in cache.
I0726 11:21:18.325428 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'.
I0726 11:21:18.329422 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_holdout_emission_blurring_pathtermination_ao_6D6701693274FF39D4C41F76FE6247AB_EB08366505E55B419B4B06BE368621EB.clbin.
I0726 11:21:18.329422 10680 opencl_util.cpp:298] OpenCL program split_shadow_blocked_dl not found in cache.
I0726 11:21:18.506242 10680 opencl_util.cpp:298] OpenCL program split_shadow_blocked_dl not found on disk.
I0726 11:21:18.506242 10680 opencl_util.cpp:298] OpenCL program split_shadow_blocked_ao not found in cache.
I0726 11:21:18.506242 3592 opencl_util.cpp:298] OpenCL program split_shadow_blocked_dl not found in cache.
Cycles: compiling OpenCL program split_shadow_blocked_dl...
I0726 11:21:18.695643 3592 opencl_util.cpp:298] Build flags: -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__
I0726 11:21:18.698640 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'.
I0726 11:21:18.701637 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_shadow_blocked_ao_6D6701693274FF39D4C41F76FE6247AB_A6506EA1D2F3887A4DBCB1C284AC7FB7.clbin.
I0726 11:21:18.702636 10680 opencl_util.cpp:298] OpenCL program split_bundle not found in cache.
I0726 11:21:20.234870 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'.
I0726 11:21:20.245857 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_bundle_6D6701693274FF39D4C41F76FE6247AB_CEF3163A2A1EB4D3867063339D6BCB11.clbin.
I0726 11:21:20.256846 10680 session.cpp:816] Total time spent loading kernels: 3.44848
I0726 11:21:20.256846 10680 svm.cpp:81] Total 6 shaders.
I0726 11:21:20.256846 7144 constant_fold.cpp:132] Discarding closure emission.
I0726 11:21:20.256846 17580 svm.cpp:66] Compilation summary:
Shader name: default_volume
Number of SVM nodes: 3
Peak stack usage: 0
Time (in seconds):
Finalize: 0.000027

Surface:           0.000004
Bump:              0.000000
Volume:            0.000001
Displacement:      0.000001

Generate: 0.000006
Total: 0.000034
I0726 11:21:20.256846 18576 svm.cpp:66] Compilation summary:
Shader name: default_surface
Number of SVM nodes: 8
Peak stack usage: 4
Time (in seconds):
Finalize: 0.000034

Surface:           0.000014
Bump:              0.000000
Volume:            0.000003
Displacement:      0.000004

Generate: 0.000020
Total: 0.000055
I0726 11:21:20.256846 12176 svm.cpp:66] Compilation summary:
Shader name: default_background
Number of SVM nodes: 5
Peak stack usage: 0
Time (in seconds):
Finalize: 0.000019

Surface:           0.000011
Bump:              0.000000
Volume:            0.000003
Displacement:      0.000002

Generate: 0.000017
Total: 0.000037
I0726 11:21:20.256846 7144 svm.cpp:66] Compilation summary:
Shader name: default_light
Number of SVM nodes: 3
Peak stack usage: 0
Time (in seconds):
Finalize: 0.000067

Surface:           0.000003
Bump:              0.000000
Volume:            0.000002
Displacement:      0.000002

Generate: 0.000006
Total: 0.000074
I0726 11:21:20.256846 17580 svm.cpp:66] Compilation summary:
Shader name: default_empty
Number of SVM nodes: 3
Peak stack usage: 0
Time (in seconds):
Finalize: 0.000009

Surface:           0.000003
Bump:              0.000000
Volume:            0.000003
Displacement:      0.000002

Generate: 0.000007
Total: 0.000017
I0726 11:21:20.256846 10680 svm.cpp:66] Compilation summary:
Shader name: shader
Number of SVM nodes: 5
Peak stack usage: 0
Time (in seconds):
Finalize: 0.000011

Surface:           0.000005
Bump:              0.000000
Volume:            0.000002
Displacement:      0.000002

Generate: 0.000009
Total: 0.000021
I0726 11:21:20.256846 10680 device_opencl_impl.cpp:1153] Global memory allocate: __svm_nodes, 528 bytes. (528)
I0726 11:21:20.256846 10680 device_opencl_impl.cpp:1153] Global memory allocate: __shaders, 192 bytes. (192)
I0726 11:21:20.276825 10680 svm.cpp:158] Shader manager updated 6 shaders in 0.0201977 seconds.
I0726 11:21:20.276825 10680 object.cpp:676] Total 1 objects.
I0726 11:21:20.278825 10680 device_opencl_impl.cpp:1153] Global memory allocate: __objects, 176 bytes. (176)
I0726 11:21:20.279824 10680 particles.cpp:108] Total 0 particle systems.
I0726 11:21:20.279824 10680 device_opencl_impl.cpp:1153] Global memory allocate: __particles, 80 bytes. (80)
I0726 11:21:20.279824 10680 geometry.cpp:1231] Total 1 meshes.
I0726 11:21:20.288816 10680 device_opencl_impl.cpp:1153] Global memory allocate: __attributes_map, 32 bytes. (32)
I0726 11:21:20.288816 10680 geometry.cpp:1375] Objects BVH build pool statistics:
Total time: 0.000291
Tasks handled: 1
I0726 11:21:20.288816 10680 geometry.cpp:1033] Using BVH2 layout.
I0726 11:21:20.411201 10680 bvh_build.cpp:491] BVH build statistics:

Build time: 0.0990009
Total number of nodes: 78,309
Number of inner nodes: 39,154
Number of leaf nodes: 39,155
Number of unaligned nodes: 0
Allocation slop factor: 1
Maximum depth: 21

I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __bvh_nodes, 2,505,856 bytes. (2.39M)
I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __bvh_leaf_nodes, 626,480 bytes. (611.80K)
I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __object_node, 4 bytes. (4)
I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __prim_tri_index, 780,112 bytes. (761.83K)
I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __prim_tri_verts, 9,361,344 bytes. (8.93M)
I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __prim_type, 780,112 bytes. (761.83K)
I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __prim_visibility, 780,112 bytes. (761.83K)
I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __prim_index, 780,112 bytes. (761.83K)
I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __prim_object, 780,112 bytes. (761.83K)
I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __tri_shader, 780,112 bytes. (761.83K)
I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __tri_vnormal, 1,570,512 bytes. (1.50M)
I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __tri_vindex, 3,120,448 bytes. (2.98M)
I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __tri_patch, 780,112 bytes. (761.83K)
I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __tri_patch_uv, 785,256 bytes. (766.85K)
I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __object_flag, 4 bytes. (4)
I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __object_volume_step, 4 bytes. (4)
I0726 11:21:20.445168 10680 camera.cpp:511] Camera is outside of the volume.
I0726 11:21:20.445168 10680 tables.cpp:42] Total 1 lookup tables.
I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __lookup_table, 262,144 bytes. (256.00K)
I0726 11:21:20.445168 10680 light.cpp:902] Total 2 lights.
I0726 11:21:20.445168 10680 light.cpp:224] Background MIS has been disabled.
I0726 11:21:20.445168 10680 light.cpp:887] Number of lights sent to the device: 1
I0726 11:21:20.445168 10680 light.cpp:889] Number of lights without contribution: 1
I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __lights, 192 bytes. (192)
I0726 11:21:20.445168 10680 light.cpp:308] Total 1 of light distribution primitives.
I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __light_distribution, 32 bytes. (32)
I0726 11:21:20.451162 10680 device_opencl_impl.cpp:1153] Global memory allocate: __sample_pattern_lut, 1,335,552 bytes. (1.27M)
I0726 11:21:20.451162 10680 tables.cpp:42] Total 2 lookup tables.
I0726 11:21:20.451162 10680 device_opencl_impl.cpp:1153] Global memory allocate: __lookup_table, 266,240 bytes. (260.00K)
I0726 11:21:20.451162 10680 device_opencl_impl.cpp:920] Buffer allocate: __data, 1,536 bytes. (1.50K)
I0726 11:21:20.451162 10680 scene.cpp:317] System memory statistics after full device sync:

Usage: 38,780,920 (36.98M)
Peak: 39,766,320 (37.92M)

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0x00007FFD4AEB7BD4 (0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000), BaseThreadInitThunk() + 0x14 bytes(s)
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I0726 11:21:44.652448 3592 opencl_util.cpp:298] Separate-process building of C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_shadow_blocked_dl_6D6701693274FF39D4C41F76FE6247AB_3A65CE64C29D04749D0FEC54E83AACB5.clbin failed, will fall back to regular building.
Cycles: compiling OpenCL program split_shadow_blocked_dl...
I0726 11:21:44.803308 3592 opencl_util.cpp:298] Build flags: -D__SPLIT_KERNEL -D__COMPUTE_DEVICE_GPU_ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__
I0726 11:21:44.803308 3592 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'.
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Ok, so I'm having a rendering issue on 2.83 also, when trying to render via Cycles and GPU selected. Memory usage was 10GB at the time, GPU usage practically nil, CPU was more or less idle (3-7%), then rendering begins. Here is the debug output for a different smaller scaled (original) file of the scaled up model, as I thought the issue was related to the scaled up model but it's in fact affecting the original model which used to render fine previously. I've also downgraded to 2.83 from 2.83.3 and I experience the same issue. Memory does not fill up, GPU does very little if anything, CPU climbs to 100% for a little while, then backs off to approx 30-40%, showing that Blender is still doing something, and then it crashes and closes. ------------------------------------- Switching to fully guarded memory allocator. Blender 2.83.0 Build: 2020-06-03 12:41:58 Windows Release argv- [x] = H:\Program Files\Blender Foundation\Blender 2.83\\blender argv- [x] = --debug argv- [x] = --debug-cycles argv- [x] = --python-expr argv- [x] = import bpy; bpy.ops.wm.sysinfo(filepath=r'C:\Users\higho\AppData\Local\Temp\blender\debug_logs\blender_system_info.txt') Read prefs: C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\config\userpref.blend read file ``` Version 280 sub 39 date unknown hash unknown ``` found bundled python: H:\Program Files\Blender Foundation\Blender 2.83\2.83\python I0726 11:20:59.944583 17160 blender_python.cpp:191] Debug flags initialized to: CPU flags: ``` AVX2 : True AVX : True SSE4.1 : True SSE3 : True SSE2 : True BVH layout : BVH8 Split : False ``` CUDA flags: ``` Adaptive Compile : False ``` OptiX flags: ``` CUDA streams : 1 ``` OpenCL flags: ``` Device type : ALL Debug : False Memory limit : 0 ``` I0726 11:21:00.754741 17160 device_opencl.cpp:48] CLEW initialization succeeded. I0726 11:21:00.870623 17160 device_cuda.cpp:56] CUEW initialization failed: Error opening the library Read blend: D:\My Documents\Dropbox\3D Models\Model\Model - Blender 2.8 Working Model - First prep for Thickening - Mesh Tidy up.blend read file D:\My Documents\Dropbox\3D Models\Model\Model - Blender 2.8 Working Model - First prep for Thickening - Mesh Tidy up.blend ``` Version 281 sub 16 date 2019-11-20 14:27 hash 26bd5ebd42e3 ``` I0726 11:21:13.060684 17160 opencl_util.cpp:945] Enumerating devices for platform AMD Accelerated Parallel Processing. I0726 11:21:13.060684 17160 opencl_util.cpp:981] Using more readable device name: AMD Radeon RX 5700 I0726 11:21:13.060684 17160 opencl_util.cpp:983] Adding new device AMD Radeon RX 5700. I0726 11:21:15.556021 9396 util_task.cpp:329] Creating pool of 8 threads. I0726 11:21:15.556021 9396 util_task.cpp:241] Detected 8 processors in active group. I0726 11:21:15.556021 9396 util_task.cpp:251] Not setting thread group affinity. I0726 11:21:15.558018 9396 device_opencl_impl.cpp:639] Creating new Cycles device for OpenCL platform AMD Accelerated Parallel Processing, device AMD Radeon RX 5700. I0726 11:21:16.807884 10680 session.cpp:803] Requested features: Experimental features: Off Max nodes group: 0 Nodes features: 0 Use Hair: False Use Object Motion: False Use Camera Motion: False Use Baking: False Use Subsurface: False Use Volume: False Use Branched Integrator: False Use Patch Evaluation: False Use Transparent Shadows: False Use Principled BSDF: False Use Denoising: False Use Displacement: False Use Background Light: True I0726 11:21:16.807884 10680 device_opencl_impl.cpp:759] Loading kernels for platform AMD Accelerated Parallel Processing, device AMD Radeon RX 5700. I0726 11:21:16.807884 10680 opencl_util.cpp:298] OpenCL program base not found in cache. I0726 11:21:16.849820 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ '. I0726 11:21:16.850819 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_base_A29D126E1429FA10EF8B96CFC96FDD3F_F7783F096470B2D7C00BF2B71E77A3B9.clbin. I0726 11:21:16.851819 10680 opencl_util.cpp:298] OpenCL program background not found in cache. I0726 11:21:16.997292 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_TRANSPARENT__ -D__NO_SHADOW_TRICKS__ -D__NO_DENOISING__ -D__NO_SHADER_RAYTRACE__'. I0726 11:21:17.001283 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_background_6FF84A6CB6720AC6DA991598F60BC046_1A681760DE957A44600BD172342AEACB.clbin. I0726 11:21:17.002274 10680 opencl_util.cpp:298] OpenCL program split_subsurface_scatter not found in cache. I0726 11:21:17.161111 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'. I0726 11:21:17.162111 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_subsurface_scatter_6D6701693274FF39D4C41F76FE6247AB_634114D755AA520AB19A3361D6A83BDE.clbin. I0726 11:21:17.163110 10680 opencl_util.cpp:298] OpenCL program split_direct_lighting not found in cache. I0726 11:21:17.448817 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'. I0726 11:21:17.473791 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_direct_lighting_6D6701693274FF39D4C41F76FE6247AB_BD149D753D55236131FAEA1D3839FE33.clbin. I0726 11:21:17.476788 10680 opencl_util.cpp:298] OpenCL program split_indirect_background not found in cache. I0726 11:21:17.726533 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'. I0726 11:21:17.732527 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_indirect_background_6D6701693274FF39D4C41F76FE6247AB_015A7F5753AC35C5A7BE76F23B390008.clbin. I0726 11:21:17.733526 10680 opencl_util.cpp:298] OpenCL program split_shader_eval not found in cache. I0726 11:21:17.953301 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'. I0726 11:21:17.957298 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_shader_eval_6D6701693274FF39D4C41F76FE6247AB_7D3561E30B694F06B0FF412AB7D37A13.clbin. I0726 11:21:17.957298 10680 opencl_util.cpp:298] OpenCL program split_lamp_emission not found in cache. I0726 11:21:18.150606 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'. I0726 11:21:18.153602 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_lamp_emission_6D6701693274FF39D4C41F76FE6247AB_327D1E973FEDB993C582FF40FADA7366.clbin. I0726 11:21:18.154601 10680 opencl_util.cpp:298] OpenCL program split_holdout_emission_blurring_pathtermination_ao not found in cache. I0726 11:21:18.325428 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'. I0726 11:21:18.329422 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_holdout_emission_blurring_pathtermination_ao_6D6701693274FF39D4C41F76FE6247AB_EB08366505E55B419B4B06BE368621EB.clbin. I0726 11:21:18.329422 10680 opencl_util.cpp:298] OpenCL program split_shadow_blocked_dl not found in cache. I0726 11:21:18.506242 10680 opencl_util.cpp:298] OpenCL program split_shadow_blocked_dl not found on disk. I0726 11:21:18.506242 10680 opencl_util.cpp:298] OpenCL program split_shadow_blocked_ao not found in cache. I0726 11:21:18.506242 3592 opencl_util.cpp:298] OpenCL program split_shadow_blocked_dl not found in cache. Cycles: compiling OpenCL program split_shadow_blocked_dl... I0726 11:21:18.695643 3592 opencl_util.cpp:298] Build flags: -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__ I0726 11:21:18.698640 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'. I0726 11:21:18.701637 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_shadow_blocked_ao_6D6701693274FF39D4C41F76FE6247AB_A6506EA1D2F3887A4DBCB1C284AC7FB7.clbin. I0726 11:21:18.702636 10680 opencl_util.cpp:298] OpenCL program split_bundle not found in cache. I0726 11:21:20.234870 10680 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'. I0726 11:21:20.245857 10680 opencl_util.cpp:298] Loaded program from C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_bundle_6D6701693274FF39D4C41F76FE6247AB_CEF3163A2A1EB4D3867063339D6BCB11.clbin. I0726 11:21:20.256846 10680 session.cpp:816] Total time spent loading kernels: 3.44848 I0726 11:21:20.256846 10680 svm.cpp:81] Total 6 shaders. I0726 11:21:20.256846 7144 constant_fold.cpp:132] Discarding closure emission. I0726 11:21:20.256846 17580 svm.cpp:66] Compilation summary: Shader name: default_volume Number of SVM nodes: 3 Peak stack usage: 0 Time (in seconds): Finalize: 0.000027 ``` Surface: 0.000004 Bump: 0.000000 Volume: 0.000001 Displacement: 0.000001 ``` Generate: 0.000006 Total: 0.000034 I0726 11:21:20.256846 18576 svm.cpp:66] Compilation summary: Shader name: default_surface Number of SVM nodes: 8 Peak stack usage: 4 Time (in seconds): Finalize: 0.000034 ``` Surface: 0.000014 Bump: 0.000000 Volume: 0.000003 Displacement: 0.000004 ``` Generate: 0.000020 Total: 0.000055 I0726 11:21:20.256846 12176 svm.cpp:66] Compilation summary: Shader name: default_background Number of SVM nodes: 5 Peak stack usage: 0 Time (in seconds): Finalize: 0.000019 ``` Surface: 0.000011 Bump: 0.000000 Volume: 0.000003 Displacement: 0.000002 ``` Generate: 0.000017 Total: 0.000037 I0726 11:21:20.256846 7144 svm.cpp:66] Compilation summary: Shader name: default_light Number of SVM nodes: 3 Peak stack usage: 0 Time (in seconds): Finalize: 0.000067 ``` Surface: 0.000003 Bump: 0.000000 Volume: 0.000002 Displacement: 0.000002 ``` Generate: 0.000006 Total: 0.000074 I0726 11:21:20.256846 17580 svm.cpp:66] Compilation summary: Shader name: default_empty Number of SVM nodes: 3 Peak stack usage: 0 Time (in seconds): Finalize: 0.000009 ``` Surface: 0.000003 Bump: 0.000000 Volume: 0.000003 Displacement: 0.000002 ``` Generate: 0.000007 Total: 0.000017 I0726 11:21:20.256846 10680 svm.cpp:66] Compilation summary: Shader name: shader Number of SVM nodes: 5 Peak stack usage: 0 Time (in seconds): Finalize: 0.000011 ``` Surface: 0.000005 Bump: 0.000000 Volume: 0.000002 Displacement: 0.000002 ``` Generate: 0.000009 Total: 0.000021 I0726 11:21:20.256846 10680 device_opencl_impl.cpp:1153] Global memory allocate: __svm_nodes, 528 bytes. (528) I0726 11:21:20.256846 10680 device_opencl_impl.cpp:1153] Global memory allocate: __shaders, 192 bytes. (192) I0726 11:21:20.276825 10680 svm.cpp:158] Shader manager updated 6 shaders in 0.0201977 seconds. I0726 11:21:20.276825 10680 object.cpp:676] Total 1 objects. I0726 11:21:20.278825 10680 device_opencl_impl.cpp:1153] Global memory allocate: __objects, 176 bytes. (176) I0726 11:21:20.279824 10680 particles.cpp:108] Total 0 particle systems. I0726 11:21:20.279824 10680 device_opencl_impl.cpp:1153] Global memory allocate: __particles, 80 bytes. (80) I0726 11:21:20.279824 10680 geometry.cpp:1231] Total 1 meshes. I0726 11:21:20.288816 10680 device_opencl_impl.cpp:1153] Global memory allocate: __attributes_map, 32 bytes. (32) I0726 11:21:20.288816 10680 geometry.cpp:1375] Objects BVH build pool statistics: Total time: 0.000291 Tasks handled: 1 I0726 11:21:20.288816 10680 geometry.cpp:1033] Using BVH2 layout. I0726 11:21:20.411201 10680 bvh_build.cpp:491] BVH build statistics: ``` Build time: 0.0990009 Total number of nodes: 78,309 Number of inner nodes: 39,154 Number of leaf nodes: 39,155 Number of unaligned nodes: 0 Allocation slop factor: 1 Maximum depth: 21 ``` I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __bvh_nodes, 2,505,856 bytes. (2.39M) I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __bvh_leaf_nodes, 626,480 bytes. (611.80K) I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __object_node, 4 bytes. (4) I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __prim_tri_index, 780,112 bytes. (761.83K) I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __prim_tri_verts, 9,361,344 bytes. (8.93M) I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __prim_type, 780,112 bytes. (761.83K) I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __prim_visibility, 780,112 bytes. (761.83K) I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __prim_index, 780,112 bytes. (761.83K) I0726 11:21:20.439174 10680 device_opencl_impl.cpp:1153] Global memory allocate: __prim_object, 780,112 bytes. (761.83K) I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __tri_shader, 780,112 bytes. (761.83K) I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __tri_vnormal, 1,570,512 bytes. (1.50M) I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __tri_vindex, 3,120,448 bytes. (2.98M) I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __tri_patch, 780,112 bytes. (761.83K) I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __tri_patch_uv, 785,256 bytes. (766.85K) I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __object_flag, 4 bytes. (4) I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __object_volume_step, 4 bytes. (4) I0726 11:21:20.445168 10680 camera.cpp:511] Camera is outside of the volume. I0726 11:21:20.445168 10680 tables.cpp:42] Total 1 lookup tables. I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __lookup_table, 262,144 bytes. (256.00K) I0726 11:21:20.445168 10680 light.cpp:902] Total 2 lights. I0726 11:21:20.445168 10680 light.cpp:224] Background MIS has been disabled. I0726 11:21:20.445168 10680 light.cpp:887] Number of lights sent to the device: 1 I0726 11:21:20.445168 10680 light.cpp:889] Number of lights without contribution: 1 I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __lights, 192 bytes. (192) I0726 11:21:20.445168 10680 light.cpp:308] Total 1 of light distribution primitives. I0726 11:21:20.445168 10680 device_opencl_impl.cpp:1153] Global memory allocate: __light_distribution, 32 bytes. (32) I0726 11:21:20.451162 10680 device_opencl_impl.cpp:1153] Global memory allocate: __sample_pattern_lut, 1,335,552 bytes. (1.27M) I0726 11:21:20.451162 10680 tables.cpp:42] Total 2 lookup tables. I0726 11:21:20.451162 10680 device_opencl_impl.cpp:1153] Global memory allocate: __lookup_table, 266,240 bytes. (260.00K) I0726 11:21:20.451162 10680 device_opencl_impl.cpp:920] Buffer allocate: __data, 1,536 bytes. (1.50K) I0726 11:21:20.451162 10680 scene.cpp:317] System memory statistics after full device sync: ``` Usage: 38,780,920 (36.98M) Peak: 39,766,320 (37.92M) ``` 0x00007FFCF41A0CF1 (0x0000000000000000 0x000001CB568BE3E0 0x000001CB53CA8AE0 0x0000000000000000), amd_comgr_symbol_lookup() + 0x28C621 bytes(s) 0x00007FFCF608180F (0x000001CB568BE4A0 0x0000001620DFAFB0 0x000001CB562ECCB0 0x0000000000000001), amd_comgr_symbol_lookup() + 0x216D13F bytes(s) 0x00007FFCF6082CEC (0x000001CB55214D50 0x0000022F00000000 0x0000000000000000 0x000001CB51085020), amd_comgr_symbol_lookup() + 0x216E61C bytes(s) 0x00007FFCF5FACEBB (0x000001CB569BB390 0x0000000000000000 0x0000000000000000 0x0000000000000000), amd_comgr_symbol_lookup() + 0x20987EB bytes(s) 0x00007FFCF674A577 (0x000001CB50D59540 0x0000000000000001 0x000001CB569BB301 0x000001CB5512C500), amd_comgr_symbol_lookup() + 0x2835EA7 bytes(s) 0x00007FFCF64A7E92 (0x000001CB569BACB0 0x00007FFCF81E5D52 0x000001CB569BB370 0x000001CB5512C5F0), amd_comgr_symbol_lookup() + 0x25937C2 bytes(s) 0x00007FFCF64A7B6A (0x000000000000000D 0x0000000000000001 0x000001CB554EE500 0x000001CB5512B2D0), amd_comgr_symbol_lookup() + 0x259349A bytes(s) 0x00007FFCF64A8938 (0x000001CB5512C500 0x000001CB569BACB0 0x0000000000000000 0x0000000000000001), amd_comgr_symbol_lookup() + 0x2594268 bytes(s) 0x00007FFCF674A9F7 (0x000001CB50FF1500 0x000001CB50FEBC00 0x0000000050FF1500 0x0000000000000012), amd_comgr_symbol_lookup() + 0x2836327 bytes(s) 0x00007FFCF674A280 (0x0000000000000000 0x0000001620DFB9D0 0x00007FFCF7C05B88 0x0000000000000000), amd_comgr_symbol_lookup() + 0x2835BB0 bytes(s) 0x00007FFCF4527E2F (0x000001CB4B1202AC 0x0000000000000000 0x0000000000000030 0x0000000000000000), amd_comgr_symbol_lookup() + 0x61375F bytes(s) 0x00007FFCF452AB58 (0x0000000000000000 0x0000001620DFBF40 0x000001CB509F8CA0 0x0000000000000000), amd_comgr_symbol_lookup() + 0x616488 bytes(s) 0x00007FFCF44F48D9 (0x0000B0DDD7A2F383 0x000001CB50EEF900 0x000001CB4E6CD9D0 0x0000000000000000), amd_comgr_symbol_lookup() + 0x5E0209 bytes(s) 0x00007FFCF4DFF1C4 (0x000001CB50EEF900 0x0000001620DFDE48 0x000001CB50EEF900 0x000001CB4EC255F0), amd_comgr_symbol_lookup() + 0xEEAAF4 bytes(s) 0x00007FFCF4DEE67B (0x000001CB50EEF900 0x000001CB00000000 0x000001CB50EEF900 0x0000000000000002), amd_comgr_symbol_lookup() + 0xED9FAB bytes(s) 0x00007FFCF3F16775 (0x0000000000000000 0x0000001620DFD528 0x000001CB50EEF900 0x0000001620DFD528), amd_comgr_symbol_lookup() + 0x20A5 bytes(s) 0x00007FFCF3ED5D48 (0x0000001620DFD528 0x000001CB4ECE0F10 0x000001CB5525CF40 0x0000000000000000) 0x00007FFCF3ED8E9F (0x0000001620DFDCB0 0x000001CB54A73B20 0x000001CB553CC960 0x000001CB53BD2807) 0x00007FFCF3ED9272 (0x000001CB55165A30 0x0000000000000000 0x000001CB55165A30 0x0000001620DFE100) 0x00007FFCF3ED4F60 (0x000001CB55165A30 0x000001CB55165A30 0x000001CB54A737A0 0x00007FFCF3F13531) 0x00007FFCF3F1317D (0x000001CB508B0B30 0x0000000000000000 0x0000001620DFEEC0 0x00007FFD4B1FFB91), amd_comgr_do_action() + 0xAFD bytes(s) 0x00007FFCF8703145 (0x0000000000000033 0x0000000000000000 0x0000001620DFE9D0 0x000001CB5525D901), clGetPipeInfo() + 0x2A885 bytes(s) 0x00007FFCF870BC20 (0x0000000000000000 0x000001CB4ED31AF0 0x000001CB508B0B30 0x0000000000000000), clGetPipeInfo() + 0x33360 bytes(s) 0x00007FFCF8701D43 (0x000001CB00000000 0x000001CB509F8DB0 0x000001CB50A0A1D0 0x0000000000000000), clGetPipeInfo() + 0x29483 bytes(s) 0x00007FFCF86F3E6F (0x000001CB509C6301 0x000001CB50865EF8 0x0000000000000000 0x0000000000000000), clGetPipeInfo() + 0x1B5AF bytes(s) 0x00007FFCF86CB449 (0x000001CB50A2EEB0 0x0000001620DFF1D9 0x0000000000000000 0x0000001620DFF1D9), clBuildProgram() + 0xC9 bytes(s) 0x00007FF6D205C793 (0x000001CB50883BB1 0x0000000000000000 0x0000001620DFF2A0 0x000001CB50A0A1E0) 0x00007FF6D201275D (0x000001CB4FF9EEE8 0x0000000000000000 0x0000000000000006 0x000001CB51780818) 0x00007FFCDCB66BED (0x0000001600000001 0x0000000000000006 0x000001CB51780818 0x000001CB4E559D00), _PyMethodDef_RawFastCallKeywords() + 0x22D bytes(s) 0x00007FFCDCC33252 (0x0000001620DFF460 0x000001CB4EC94B88 0x000001CB51798140 0x0000001620DFF460), PyEval_GetFuncDesc() + 0x182 bytes(s) 0x00007FFCDCC301E8 (0x000001CB5174CD50 0x0000000000000000 0x0000000000000000 0x000001CB4FFB6F60), _PyEval_EvalFrameDefault() + 0x2C28 bytes(s) 0x00007FFCDCC32035 (0x000001CB4E559D00 0x0000000000000000 0x000001CB4FFB6F60 0x0000000000000000), _PyEval_EvalCodeWithName() + 0x9B5 bytes(s) 0x00007FFCDCC8CDED (0x000001CB4FF4C5F0 0x0000000000000000 0x0000000000000000 0x000001CB00000000), PyRun_FileExFlags() + 0x48D bytes(s) 0x00007FFCDCC8C928 (0x0000000000000000 0x000001CB5001B138 0x000001CB4D884E01 0x0000000000000000), PyRun_StringFlags() + 0xE8 bytes(s) 0x00007FF6D1763B18 (0x0000000000000003 0x0000000000000003 0x000001CB4FBFF368 0x00007FF6D38929FA) 0x00007FF6D1213DD5 (0x0000000000000003 0x000001CB4E0E23F0 0x0000000000000003 0x000001CB4E0E23F0) 0x00007FF6D388746B (0x0000000000000000 0x000001CB4E0E23C8 0x0000000000000000 0x000001CB4E0E23C8), PyInit_aud() + 0x5725B bytes(s) 0x00007FF6D12121B7 (0x0000000000000005 0x0000000000000000 0x000000005ED7B5DE 0x0000000000000000) 0x00007FF6D3DCAF74 (0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000), PyInit_aud() + 0x59AD64 bytes(s) 0x00007FFD4AEB7BD4 (0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000), BaseThreadInitThunk() + 0x14 bytes(s) 0x00007FFD4B22CE51 (0x0000000000000000 0x0000000000000000 0x0000000000000000 0x0000000000000000), RtlUserThreadStart() + 0x21 bytes(s) I0726 11:21:44.652448 3592 opencl_util.cpp:298] Separate-process building of C:\Users\higho\AppData\Roaming\Blender Foundation\Blender\2.83\cache\kernels\cycles_kernel_split_shadow_blocked_dl_6D6701693274FF39D4C41F76FE6247AB_3A65CE64C29D04749D0FEC54E83AACB5.clbin failed, will fall back to regular building. Cycles: compiling OpenCL program split_shadow_blocked_dl... I0726 11:21:44.803308 3592 opencl_util.cpp:298] Build flags: -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__ I0726 11:21:44.803308 3592 opencl_util.cpp:325] Build options passed to clBuildProgram: '-cl-no-signed-zeros -cl-mad-enable -cl-std=CL2.0 -D__KERNEL_OPENCL_AMD__ -D__KERNEL_CL_KHR_FP16__ -D__SPLIT_KERNEL__ -D__COMPUTE_DEVICE_GPU__ -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ -D__NO_SHADER_RAYTRACE__'. 0x00007FFCF41A0CF1 (0x0000000000000000 0x000001A99BC13620 0x000001A98AE6C880 0x0000000000000000), amd_comgr_symbol_lookup() + 0x28C621 bytes(s) 0x00007FFCF608180F (0x000001A99BC136E0 0x0000006C34BFB0C0 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PS: I have since changed GPU to an AMD Radeon RX 5700, same issue (included in the log above)

Added subscriber: @iss

Please check if this happens after clicking on File > Defaults > Load Factory Settings

if that doesn't help please upload simplified example file (remove everything from file that doesn't cause bug)

Hi RIchard,

Thanks for getting back to me. I have carried out that step and using the default cube (no changes made, original startup configuration, non modified default cube or file, etc), and I set it to Cycles, GPU, the rendering tries to render and approx a minute later, blender crashes out on the default cube. So it now appears that it has nothing to do with my model after all, and it's more to do with the current system somehow.

This issue was present before AND after changing GPUs, and Blender previously worked.

Evee rendering works fine for the default cube
Cycles CPU works fine for the default cube
Cycles GPU fails, the crash occurs after the 60 seconds or so of "Updating Device - Kernel, etc, etc". All have been tested with the Load Factory Settings as recommended.

Thanks for info, can you check if this happens in Blender version 2.91? https://builder.blender.org/download/ and with updated GPU drivers?

I'm after finding a similar report of the issue: https://developer.blender.org/T75319

They seem to be reporting the same problem I'm having, also with the default cube under Cycles - GPU.

I'll try 2.91 and get back to you!

Same type of crash, however even though I was doing a GPU render, the CPU maxed out for approx 30-60 seconds, sitting at 100% before easing off again, and then the crash occurred.

Default cube on 2.91

Drivers are reportedly up to date.

Radeon Software system output:
Software Version - 2020.0711.1742.31878
Driver Version - 20.20.01.09-200711a-357168E-RadeonSoftwareAdrenalin2020
Provider - Advanced Micro Devices, Inc.
2D Driver Version - 8.1.1.1634
Direct3D® Version - 9.14.10.01451
OpenGL® Version - 26.20.11000.14736
AMD Audio Driver Version - 10.0.1.16
Vulkan™ Driver Version - 2.0.145
Vulkan™ API Version - 1.2.139
Windows Version - Windows 10 (64 bit)

Can you double check if update is available at https://www.amd.com/en/support? I don't know exact GPU model but there seems to be 20.7.2 version available opposed to 20.2.2 in your report.

I seem to have that, their numbers are confusing but the documentation shows: https://www.amd.com/en/support/kb/release-notes/rn-rad-win-20-7-2

"The Radeon Software Adrenalin 2020 Edition 20.7.2 installation package contains the following:
Radeon Software Adrenalin 2020 Edition 20.7.2 Driver Version 20.20.01.09 (Windows Driver Store Version 27.20.2001.9003)."

The Radeon software I have is giving me the following:

The drivers I have installed appear to be fully recent.

A bit confusing indeed. Can you check if this issue happens when you click on File > Defaults > Load Factory Settings? This can be also caused by some addon.

I've just tested the default cube on 2.91.

No blender instances open:
Blender 2.91 opened (downloaded today)
Default Cube open
File > Defaults > Load Factory Settings
Preferences > System > OpenCL > AMD Radeon RX 5700 (ticked)
Preferences closed
Render Tab > Cycles > GPU (Supported, not experimental)
F12 - Wait a few seconds, crash

Changed status from 'Needs User Info' to: 'Needs Developer To Reproduce'

Thanks for info.

If you can update description with version that worked, that would be great.

Added subscriber: @verrafa

Had a similar issue, Maybe you can try this:
just added a comment with my solution to this issue maybe it is also related to this one:
https://developer.blender.org/T74883

(I just left a comment under the other thread) This is odd - I can't find that GPU Scheduling setting, or Hardware Accelerated GPU Scheduling mentioned under the Graphics/Display settings screens in Windows 10.. I've looked up step by step guides and I'm missing that part completely!

Default Cube rendering GPU Cycles for all attempts below:

v2.79 zip package of Blender, Win64 (FAIL)
blender.exe crashes after showing the main screen (light grey only) for approx 2 seconds. There are no .bat files so I don't have a quick way of establishing if any of the flags work or not with that version.

v2.80 zip package of Blender, Win64 (PARTIAL SUCCESS)
If I run blender.exe, it tries to load, and then crashes. I try loading again, it repeats the same partial load (never showing the main blender screen, just a light grey main screen for approx 2 seconds before crashing).
However, if I run blender_debug_gpu.cmd, I can run that same blender from that release, and GPU rendering under Cycles works.

v2.81 zip package of Blender, Win64 (SAME PARTIAL SUCCESS AS 2.80)
If I run blender.exe, it tries to load, and then crashes. I try loading again, it repeats the same partial load (never showing the main blender screen, just a light grey main screen for approx 2 seconds before crashing).
However, if I run blender_debug_gpu.cmd, I can run that same blender from that release, and GPU rendering under Cycles works.

v2.82 zip package of Blender, Win64 (TOTAL SUCCESS)
If I run blender.exe from that release, GPU rendering under Cycles works
I run blender_debug_gpu.cmd, I can run that same blender from that release, and GPU rendering under Cycles works

Installed version of 2.83 (FAIL)
If I run blender.exe or blender_debug_gpu.cmd, both crash during GPU Cycles rendering

v2.91.0-81caec8c6098-windows64 zip package of Blender, Win64 (FAIL)
If I run blender.exe or blender_debug_gpu.cmd, both crash during GPU Cycles rendering

In #79198#990176, @highonsnow wrote:
(I just left a comment under the other thread) This is odd - I can't find that GPU Scheduling setting, or Hardware Accelerated GPU Scheduling mentioned under the Graphics/Display settings screens in Windows 10.. I've looked up step by step guides and I'm missing that part completely!

Try the latest version. I seems it was added with the windows 10 2004 update. I think it is not Blenders fault. Something changed with the cuda / windows drivers. But i am so happy that i can continue rendering on two graphics cards.

It seems for me you looked at the right position.

That is the reason why it suprised me. I didn't change anything. The latest windows update was the reason.
As i have seen in the debug logs / sources i think the problem is that the multithreading timing is broken in this case.

The error message and the point it crashed was inconsistent. Sometimes at building the bhv sometimes at rendering the first tile.

Looks for me like a multithreading / async issue. The process is started correctly but the end of the multithreading operations seems not to be caught correctly. But i am not an cuda specialist. Just a Webdev. ;)

Unfortunately I'm not able to upgrade to 2004 as it's not available for my machine, yet.

I have upgraded Windows 10 to release 2004. Issue persists on various versions of Blender (2.82, 2.91).

Blender 2.91 test with Blend 2.blend run via blender_factory_startup.cmd:

blender_debug_output.txt

blender_system_info.txt

Edit > Preferences > System > OpenCL > One GPU selected (RX 5700)
Render > Cycles > GPU

Render

Crash after approx 2 minutes, exiting whilst displaying "Updating Device | Writing constant memory | Compiling render kernels" on the render window.

In #79198#991040, @verrafa wrote:

In #79198#990176, @highonsnow wrote:
(I just left a comment under the other thread) This is odd - I can't find that GPU Scheduling setting, or Hardware Accelerated GPU Scheduling mentioned under the Graphics/Display settings screens in Windows 10.. I've looked up step by step guides and I'm missing that part completely!

Try the latest version. I seems it was added with the windows 10 2004 update. I think it is not Blenders fault. Something changed with the cuda / windows drivers. But i am so happy that i can continue rendering on two graphics cards.

It seems for me you looked at the right position.

This is odd, I'm on Windows 10 release 2004 and I'm not seeing any mention of Hardware Accelerated GPU Scheduling still!

Thats really odd. HAGS has been added with the 2004 update. So if you had this issue before, maybe there is another problem with your system. This will not activated automatically. So if you dont have this option it is a good sign that your issue is not related to my solution. Also my Blender does not crash it freezes at random places when rendering. somteimes at the bhv stage sometimes before it wants to render a tile. So good luck.

try this:
https://www.techspot.com/news/85831-amd-adds-beta-support-hardware-accelerated-gpu-scheduling.html

"Now AMD is following suit and enabling support for hardware-accelerated GPU scheduling with its latest Adrenalin 2020 Edition 20.5.1 Beta driver package. Or at least preliminary support, as these drivers are still in beta. Hardware-accelerated GPU scheduling appears to be the main highlight with this driver package though, and AMD says "By moving scheduling responsibilities from software into hardware, this feature has the potential to improve GPU responsiveness and to allow additional innovation in GPU workload management in the future."
Did you tried the latest beta driver. AMD does not to support it with a stable driver yet.

"AMD also notes that for the time being, support is limited to the Radeon RX 5600 and Radeon RX 5700 series GPUs."

Added subscriber: @brecht

Changed status from 'Needs Developer To Reproduce' to: 'Needs User Info'

Bug reports are required to have a .blend and steps to reproduce problems using that file.

Almost always production files can be simplified or analyzed to find the exact cause of the problem, so that the original file does not have to be shared.

If it's not possible to provide such a .blend, we'll have to close this report.

Hi Brecht,

Regarding the.blend required, please refer to the above comment: https://developer.blender.org/T79198#990250

"Default Cube rendering GPU Cycles for all attempts below" (showing a series of fails between different versions)

No custom or modified blend file is required, it crashes straight out of the box with the default cube. The crash is consistent with any file, no matter which file I use. In my previous comment, I suggested "Blend 2.blend", which is one of the Blender demo files shown on: https://www.blender.org/download/demo-files/ (PartyTug is that file Blend 2.blend).

Unfortunately I cannot provide you with a .blend file other than referring to the default cube that comes with each version of blender that crashes in my scenario.

Richard Antalik had previously indicated that I had provided every necessary piece of information and had marked it to Needs Developer to Reproduce. There is no further information that I can provide - if there was, I would certainly provide it but I have made every effort to give everything.

For the sake of keeping things moving, I'll provide you with debug output on the default cube after running Blender 2.91 on blender_factory_startup.cmd:

Screen remains on the default cube, no interaction with the main window other than to open the Edit menu:

Edit > Preferences > System > OpenCL > One GPU selected (RX 5700)
Render > Cycles > GPU

Render (F12)

Crash after approx 1 minute, exiting whilst displaying "Updating Device | Writing constant memory | Compiling render kernels" on the render window.

blender_debug_output.txt

blender_system_info.txt

That is all the information I can provide, or is necessary to provide to reproduce the issue.

Ok, I have a much clearer picture of the problem now. It appears to be directly related to the AMD GFX drivers that I'm using. Originally, when this was posted, I was using the most current version of the drivers:
win10-radeon-software-adrenalin-2020-edition-20.8.1-aug4

To summarise, rendering the default cube under Cycles GPU would result in a crash, in nearly every version of Blender.

I have followed the recommendation of a previous comment to try out the beta 2.5x version of the drivers. This gave a partial success rate but was largely unsatisfactory in Blender (Radeon software wouldn't work either).

I have however downgraded to:
win10-radeon-software-adrenalin-2020-edition-20.4.2-may25

This has resulted in a dramatic improvement, so much so that I can now actually use the Viewport Shading whilst set to Cycles GPU also.. everything works, and I haven't seen a crash.

So, the drivers were contributing to the crashing. I would like to recommend that developers replicate this issue by testing with versions:

Working: win10-radeon-software-adrenalin-2020-edition-20.4.2-may25
Broken: win10-radeon-software-adrenalin-2020-edition-20.8.1-aug4

I would imagine Blender should gracefully handle the issue, whatever is causing it, rather than crashing out (granted it is driver influenced).

Has any developer been able to reproduce the issue on this one? I'd greatly appreciate the help, as I seem to have identified the drivers as being a contributing factor to the crash.

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

Added subscriber: @ideasman42

Cant redo:

OS: Linux 5.8.14-arch1-1
REV: f1aa55b6e9cd8ec4d7eb7fead853a4436b35d4cd
GPU: AMD/ATI] Navi 10 [Radeon RX 5600 OEM/5600 XT / 5700/5700 XT

This is a bug in the AMD OpenCL compiler. AMD is aware of the issue, there should be a driver fix coming from this (in November?).

We recommend installing Pro drivers rather than Adrenalin for Cycles, the latest version of those should work.

I'll mark this as a known issue, that hopefully will resolve itself once the AMD driver with fix is out.

Added subscriber: @stexiati1

Hello! I am using two AMD Radeon RX 5700 XT 50th Anniversary cards with two different pc-s and both crashing in cycles every time even if I got only the default cube. I use Blender 2.90.1. Is there a solution to this already? Thank you!

Added subscriber: @kinphi

Added subscriber: @Dragosh

I also crash with 5700 XT and i got the PRO driver installed 20.Q3.1

Added subscriber: @TashaSkyUp

Sick of only nvidia being a priority. The tune will change soon I hope.

The new 20.Q4 PRO driver didnt fix the issue as of now.

Added subscriber: @lichtwerk

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

I assume this can be confirmed since

This is a bug in the AMD OpenCL compiler. AMD is aware of the issue

I would like to report that an unexpected thing happened.

I reinstalled windows 10 fresh, and the Cycles GPU render seems to work oddly enough (i tested just 1 scene)

Addendum -

After a couple of more scenes (complex) it does crash again

Added subscriber: @jin.veiss

Working in the new Blender 2.91.1 Alpha
Sapphire Nitro+ RX5700 XT
Ryzen 7 3700X 32GB Ram
Latest AMD Drivers

It does seem to still struggle a bit to compile kernels and what not prerendering in the image editor and especially with large scenes. Testing with the BMW GPU scene the viewport starts rendering right away. Seemingly not quite there yet, maybe the ball's in AMD's court for further optimization, or maybe I just don't know what to expect as this is the first GPU rendering I've been able to do on this machine, but it is at least useable now!

Please test and report back results. Specifically curious how better processors will fare with the 5700XT.

Added subscriber: @Blendify

Changed status from 'Confirmed' to: 'Archived'

As a result of the Cycles-x changes in Blender 3.0, OpenCL support for Cycles has been removed and older versions will not receive bug fixes in regard to OpenCL rendering.
This is due to the combination of the limited features, driver bugs, and the stalled OpenCL standard making maintenance too difficult.

Blender is working with hardware vendors to bring back GPU rendering support for AMD and Intel GPUs, using others APIs.
Support for all major GPU vendors is an important goal but this goal might not be met for the upcoming 3.0 release.

Support for AMD cards is already in the works, for updates see #91571.

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Cycles AMD OpenCL compiler crash with RX 5700 #79198