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In bug 5039, users are reporting a stack overflow in MD. From the traces in that bug, it appears that it's a stack overflow in MonoMac.ObjCRuntime.Class:TypeContainsFloatingPoint
I'm not sure how that's possible, as it implies a broken (recursive/infinite) struct.
Also, MonoMac appears to be initializing a huge amount of methods that MD doesn't use.
The type that is breaking is Int64.
Fixed in master.
Still need to figure out why Snow Leopard is registering many more callbacks than Lion, which exposed this issue.
Here's the list of callbacks on SL and Lion: https://gist.github.com/71e30e406a15f8f9f93a
The bug was fixed, and we now use a different engine to register handlers.
We are trying to verify this issue, but we are not sure about the steps to verify.
Could you please share steps to reproduce/check this issue? So that we can verify it efficiently.