I just managed to kill the driver for my network card with an out-of-bounds write in my GPU code!? Security of those GPUs must be awesome..
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Yes. But in times of CUDA uniform memory a GPU write is not limited to GPU memory.
I've managed to simply crash my machine with a buggy GPU kernels many times. Sometimes it just kills my desktop but can still login via ssh.
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The CUDA part has enlightened me sufficiently (for now!). I can study it more later when I have more time. Thanks for the response :D!
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Theoretically the memory protection scheme used by the OS is replicated on the GPU. But in practice we don't seem to be there yet..
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I would've figured an IOMMU would've stopped rogue mem accesses, but perhaps gfx hardware (and CUDA) doesn't play nice w/ it?
End of conversation
New conversation -
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This. I crash my system with careless CUDA uniform memory writes daily.
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