Make extract_stack resilient to lacking frames. #563
Merged
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We are using uvloop in conjunction with an implementation of GRPC (not the default one) that is using C++ and Cython instead of native code. This means we try to do things with the loop while not holding a frame, which causes crashes when we enable debug mode on the loop. From reading Cython documentation this seems kinda impossible to adjust to have a frame. But it is fairly easy to just not fail hard here.