0 libobjc.A.dylib | objc_retain + 16
1 xxx | TMReachabilityCallback (Reachability.m:76)
2 SystemConfiguration | _reachPerformAndUnlock + 540
3 SystemConfiguration | _____SCNetworkReachabilityRestartResolver_block_invoke_2 + 472
4 libnetwork.dylib | ___nw_resolver_update_client_block_invoke + 104
5 libdispatch.dylib | __dispatch_call_block_and_release + 24
6 libdispatch.dylib | __dispatch_client_callout + 16
7 libdispatch.dylib | __dispatch_lane_serial_drain$VARIANT$mp + 592
8 libdispatch.dylib | __dispatch_lane_invoke$VARIANT$mp + 432
9 libdispatch.dylib | __dispatch_workloop_worker_thread + 600
10 libsystem_pthread.dylib | _pthread_wqthread + 312
