microsoft / microsoft/DirectX-Graphics-Samples
Getting access violation with Linked GPU example "sometimes!"
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- Dominant language
- C++
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Description
Think there is a race condition in the Linked GPU example.
If I breakpoint on line 191 and increase the resolution to 1080p etc then continue to run I'll sometime hit an access violation.
Exception thrown at 0x00007FFCC8C221EA (nvwgf2umx.dll) in D3D12LinkedGpus.exe: 0xC0000005: Access violation reading location 0x0000020B440EC2AC.
Win 10 x64 1809
Two Nvidia SLI / Linked GTX 960's
i3-7100 CPU
Also when I run this test on a Crossfire R9 280x setup it blue-screens windows.
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Research direction
Start with the Linked GPU example and reproduce the failure around line 191 while increasing the resolution to 1080p or higher. Compare the reported Nvidia SLI access violation and Crossfire blue-screen behavior; the work is done when the sample runs without either failure on the reported setups.
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Assessment
- Tech stack
- cpp
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 28/100