Hi, i have a crash received in my Firebase Crashlytics. I couldn't figure out the root cause of the issue. Could anyone please help me with it.
Crashed: com.apple.CFNetwork.Connection 0 libobjc.A.dylib 0x20b8 objc_retain_x19 + 16 1 CFNetwork 0x47398 HTTP3Fields::appendField(NSString*, NSString*) + 72 2 CFNetwork 0x41250 invocation function for block in HTTP3Stream::_buildRequestHeaders() + 240 3 CoreFoundation 0x249f0 __NSDICTIONARY_IS_CALLING_OUT_TO_A_BLOCK__ + 24 4 CoreFoundation 0x565dc ____NSDictionaryEnumerate_block_invoke_2 + 56 5 CoreFoundation 0x55b10 CFBasicHashApply + 148 6 CoreFoundation 0x8abfc __NSDictionaryEnumerate + 520 7 CFNetwork 0x793d4 HTTP3Stream::scheduleAndOpenWithHandler(CoreSchedulingSet const*, void (__CFHTTPMessage*, NSObject<OS_dispatch_data>*, CFStreamError const*) block_pointer, void (unsigned char) block_pointer) + 1120 8 CFNetwork 0x1665c HTTPProtocol::useNetStreamInfoForRequest(MetaNetStreamInfo*, HTTPRequestMessage const*, unsigned char) + 4044 9 CFNetwork 0x80c80 HTTP3ConnectionCacheEntry::enqueueRequestForProtocol(MetaConnectionCacheClient*, HTTPRequestMessage const*, MetaConnectionOptions) + 2540 10 CFNetwork 0x7fab8 HTTP3ConnectionCacheWrapper::ingestTube(Tube*, bool) + 2924 11 CFNetwork 0x257dc TubeManager::newTubeReady(Tube*, CFStreamError) + 4284 12 CFNetwork 0x57b64 invocation function for block in TubeManager::_onqueue_createNewTube(HTTPConnectionCacheKey*) + 72 13 CFNetwork 0x2fe30 Tube::_onqueue_invokeCB(CFStreamError) + 360 14 CFNetwork 0x2fc20 NWIOConnection::_signalEstablished() + 652 15 CFNetwork 0x4ba1c invocation function for block in NWIOConnection::_handleEvent_ReadyFinish() + 748 16 CFNetwork 0x4b5b0 invocation function for block in Tube::postConnectConfiguration(NSObject<OS_tcp_connection>*, NSObject<OS_nw_parameters>*, void () block_pointer) + 860 17 CFNetwork 0x4b220 BlockHolderVar<std::__1::shared_ptr<NetworkProxy>, bool, CFStreamError>::invoke_normal(std::__1::shared_ptr<NetworkProxy>, bool, CFStreamError) + 64 18 CFNetwork 0x32f2c ProxyConnectionEstablishment::postProxyConnectionConfiguration(__CFAllocator const*, std::__1::shared_ptr<TransportConnection>, NSObject<OS_nw_parameters>*, __CFHTTPMessage*, HTTPConnectionCacheKey*, std::__1::shared_ptr<MetaAuthClient>, SmartBlockWithArgs<std::__1::shared_ptr<NetworkProxy>, bool, CFStreamError>) + 664 19 CFNetwork 0x32bbc Tube::postConnectConfiguration(NSObject<OS_tcp_connection>*, NSObject<OS_nw_parameters>*, void () block_pointer) + 744 20 CFNetwork 0xc19b0 invocation function for block in NWIOConnection::_setupConnectionEvents() + 2360 21 libdispatch.dylib 0x132e8 _dispatch_block_async_invoke2 + 148 22 libdispatch.dylib 0x40d0 _dispatch_client_callout + 20 23 libdispatch.dylib 0xb6d8 _dispatch_lane_serial_drain + 744 24 libdispatch.dylib 0xc214 _dispatch_lane_invoke + 432 25 libdispatch.dylib 0xd670 _dispatch_workloop_invoke + 1732 26 libdispatch.dylib 0x17258 _dispatch_root_queue_drain_deferred_wlh + 288 27 libdispatch.dylib 0x16aa4 _dispatch_workloop_worker_thread + 540 28 libsystem_pthread.dylib 0x4c7c _pthread_wqthread + 288 29 libsystem_pthread.dylib 0x1488 start_wqthread + 8 [Here is the complete crash report.](https://developer.apple.com/forums/content/attachment/58b5bb7d-7c90-4eec-906c-4fb76861d44b)
It’s hard to offer any useful insight into this crash based on the info you’ve posted. Your app is crashing in objc_retain_x19. That’s usually the result of a memory management issue. That issue could be in the OS itself, but it could just as easily be in your app’s code. My general advice is that you stress test your app under the standard memory debugging tools to see if that makes the issue more reproducible.
Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"
