新的 Xcode 14 beta 我收到此错误：QOS_CLASS_USER_INITIATED waiting on a lower QoS thread running at QOS_CLASS_DEFAULT

Question

我的应用程序运行良好，我在 Xcode 13 上没有收到此错误，但在 Xcode 14 中我从 Firebase 数据库收到此错误。

Firebase 数据库错误

Backtrace
=================================================================
3   FirebaseDatabase                    0x000000011267c6eb -[_FSRRunLoopThread runLoop] + 43
4   FirebaseDatabase                    0x000000011267c443 __45+[NSRunLoop(FSRWebSocket) FSR_networkRunLoop]_block_invoke + 115
5   libdispatch.dylib                   0x00000001198eefeb _dispatch_client_callout + 8
6   libdispatch.dylib                   0x00000001198f0645 _dispatch_once_callout + 66
7   FirebaseDatabase                    0x000000011267c39e +[NSRunLoop(FSRWebSocket) FSR_networkRunLoop] + 78
8   FirebaseDatabase                    0x00000001126758be -[FSRWebSocket _connect] + 78
9   FirebaseDatabase                    0x0000000112674562 -[FSRWebSocket open] + 258
10  FirebaseDatabase                    0x00000001126a409e -[FWebSocketConnection open] + 270
11  FirebaseDatabase                    0x0000000112614268 -[FConnection open] + 120
12  FirebaseDatabase                    0x000000011264ed4a -[FPersistentConnection openNetworkConnectionWithContext:] + 698
13  FirebaseDatabase                    0x000000011264e92b __45-[FPersistentConnection tryScheduleReconnect]_block_invoke_2 + 347
14  FirebaseDatabase                    0x000000011262671e __80-[FIRDatabaseConnectionContextProvider fetchContextForcingRefresh:withCallback:]_block_invoke.87 + 110
15  libdispatch.dylib                   0x00000001198edda8 _dispatch_call_block_and_release + 12
16  libdispatch.dylib                   0x00000001198eefeb _dispatch_client_callout + 8
17  libdispatch.dylib                   0x00000001198f6dd1 _dispatch_lane_serial_drain + 1064
18  libdispatch.dylib                   0x00000001198f7bab _dispatch_lane_invoke + 441
19  libdispatch.dylib                   0x0000000119905f63 _dispatch_workloop_worker_thread + 959
20  libsystem_pthread.dylib             0x0000000119efcfd0 _pthread_wqthread + 326
21  libsystem_pthread.dylib             0x0000000119efbf57 start_wqthread + 15

Answer 1

此优先级倒置问题已在最新版本 (9.6.0) 中修复 -请参阅问题线程的发行说明。

[已修复] 修复 Xcode 14 暴露的优先级反转问题 (#10130)。