Switching to fully guarded memory allocator.
Blender 2.90.0 Alpha
Build: 2020-06-08 22:21:24 Windows Release
argv[0] = d:\Downloads\blender-2.90.0-9f7d84b656fb-windows64\\blender
argv[1] = --debug
argv[2] = --debug-cycles
argv[3] = --python-expr
argv[4] = import bpy; bpy.ops.wm.sysinfo(filepath=r'C:\Users\xx\AppData\Local\Temp\blender\debug_logs\blender_system_info.txt')
Read prefs: C:\Users\xx\AppData\Roaming\Blender Foundation\Blender\2.90\config\userpref.blend
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  Version 280 sub 39 date unknown hash unknown
found bundled python: d:\Downloads\blender-2.90.0-9f7d84b656fb-windows64\2.90\python
I0609 14:05:06.337301 10396 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
I0609 14:05:21.225569 10396 device_opencl.cpp:48] CLEW initialization succeeded.
OpenCL error: CL_INVALID_VALUE in __clewGetDeviceInfo(device_id, 0x1030, sizeof(data), &data, NULL) (c:\b\win64_cmake_vs2017\win64_cmake_vs2017\blender.git\intern\cycles\device\device_opencl.cpp:210)
I0609 14:05:25.678297 10396 device_cuda.cpp:56] CUEW initialization failed: Error opening the library
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  Version 280 sub 39 date unknown hash unknown
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  Version 283 sub 8 date 2020-03-12 14:53 hash 63ee3db96107
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  Version 280 sub 20 date 2018-07-14 11:44 hash 27ba739fb79
Error   : EXCEPTION_ACCESS_VIOLATION
Address : 0x00007FF78FBBACE3
Module  : blender.exe
Thread  : 00003214
Writing: C:\Users\xx\AppData\Local\Temp\blender.crash.txt