I use AFNetworking 2.5.3
in AFURLSessionManager , I do not know why you recursive call af_resume method. From your code
if (state != NSURLSessionTaskStateRunning) {
[[NSNotificationCenter defaultCenter] postNotificationName:AFNSURLSessionTaskDidResumeNotification object:self];
}
}
it will infinite recursive call af_resume.
And in my app, some people crashed by this problem.

hope you can fix it.
I'm seeing the same crashes in 2.5.4 on iOS 8 only.
I'm really stumped on this one.
This has also been reported in https://github.com/AFNetworking/AFNetworking/issues/2743. Can you let me know what other third party libraries are included in your app? We have unit tests that specifically test and confirm the swizzling is properly setup for AF, but it appears some outside library is also creating a problem.
Can you add your information to #2743?
I am getting the same issue after OneSky integration. Is there any solution to resolve this conflict with third party library?
Same problem on 2.6.3 in ios9 above

Same crash on iOS 10
same problem when using Dynatrace integrated in the app. Did anyone find the fix to this crash?
Now we use Swift
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Same crash on iOS 10