4 ms·

I certainly have crashed many a machine with CUDA.

• kimixa 4y ago
  My understanding is that with current generation GPUs a crash/timeout can happen. Again, you can do pretty much anything with shaders, so invalid accesses, infinite loops, other things that can halt execution are perfectly possible. It doesn't mean much in the way of security. But they should be detected and that context killed (or reset in a way that may lose the current job's state) - all other contexts should keep their state. Though task switching is often a lot cruder than on CPUs, so during that timeout other tasks may be blocked - so other renders (including the window system) will be wedged until it's reset. This may mean that a bad actor with access to the GPU can try a denial of service style attack, throwing constant bad tasks at the GPU and causing it to wedge repeatedly, which can certainly be annoying.