Core Data nested managed object contexts and frequent deadlocks / freezes

Question

I have a problem that is almost identical to the problem described by this person here, but it hasn\'t get answered:

http://www.cocoabuilder.com/arc

Answer 1

It happens to me because the parents are set up with NSMainQueueConcurencyType

To solve that I make the managedobjectcontext for mainQueue to be a child. I called reset everytime I want to load stuff to ensure that data on mainQueue is the same with the parent. It often isn't.