bool _WebTryThreadLock(bool), 0x9a42a90: Multiple locks on web thread not allowed! Please file a bug. Crashing now...
1 0x5978c88 WebRunLoopLock(__CFRunLoopObserver*, unsigned long, void*)
2 0x2e59afe __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__
3 0x2e59a3d __CFRunLoopDoObservers
4 0x2e37704 __CFRunLoopRun
5 0x2e36f44 CFRunLoopRunSpecific
6 0x2e36e1b CFRunLoopRunInMode
7 0x5978c50 RunWebThread(void*)
8 0x9c81eed9 _pthread_start
9 0x9c8226de thread_start
当文本字段开始编辑时,上面的日志就会出现。