发现crash

[nyz110]

符号化之后的log 如下

Thread 19 name:  Dispatch queue: com.kingsoft.video.httpcache.download (QOS: UNSPECIFIED)
Thread 19 Crashed:
0   libsystem_kernel.dylib        	0x00000001824102e8 __pthread_kill + 8
1   libsystem_pthread.dylib       	0x00000001825252f8 pthread_kill$VARIANT$mp + 396
2   libsystem_c.dylib             	0x000000018237efbc abort + 140
3   libc++abi.dylib               	0x0000000181b1c068 __cxa_bad_cast + 0
4   libc++abi.dylib               	0x0000000181b1c210 default_unexpected_handler+ 8720 () + 0
5   libobjc.A.dylib               	0x0000000181b44810 _objc_terminate+ 34832 () + 124
6   libc++abi.dylib               	0x0000000181b3454c std::__terminate(void (*)+ 107852 ()) + 16
7   libc++abi.dylib               	0x0000000181b33ea8 __cxxabiv1::exception_cleanup_func+ 106152 (_Unwind_Reason_Code, _Unwind_Exception*) + 0
8   libobjc.A.dylib               	0x0000000181b4465c _objc_exception_destructor+ 34396 (void*) + 0
9   CoreFoundation                	0x00000001828fe2ac -[NSException initWithCoder:] + 0
10  MyApp                        	0x000000010288fd58 UmengSignalHandler + 128
11  libsystem_platform.dylib      	0x000000018251fb40 _sigtramp + 36
12  MyApp                        	0x000000010213d8c4 __56-[HTTPAsyncCacheReponse initWithFilePath:forConnection:]_block_invoke + 120
13  MyApp                        	0x0000000102151618 -[ActionWorker processActionsWithHandler:] + 624
14  MyApp                        	0x0000000102152918 -[ActionWorker URLSession:task:didCompleteWithError:] + 364
15  MyApp                        	0x000000010214ef68 -[URLSessionDelegateObject URLSession:task:didCompleteWithError:] + 124
16  CFNetwork                     	0x0000000183039ff4 __51-[NSURLSession delegate_task:didCompleteWithError:]_block_invoke.207 + 76
17  Foundation                    	0x00000001832d5ba0 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 16
18  Foundation                    	0x0000000183215894 -[NSBlockOperation main] + 72
19  Foundation                    	0x00000001832054c4 -[__NSOperationInternal _start:] + 848
20  libdispatch.dylib             	0x000000018227aa14 _dispatch_client_callout + 16
21  libdispatch.dylib             	0x0000000182282200 _dispatch_block_invoke_direct$VARIANT$mp + 288
22  libdispatch.dylib             	0x000000018227aa14 _dispatch_client_callout + 16
23  libdispatch.dylib             	0x0000000182282200 _dispatch_block_invoke_direct$VARIANT$mp + 288
24  libdispatch.dylib             	0x00000001822820ac dispatch_block_perform$VARIANT$mp + 104
25  Foundation                    	0x00000001832d7878 __NSOQSchedule_f + 376
26  libdispatch.dylib             	0x000000018227aa14 _dispatch_client_callout + 16
27  libdispatch.dylib             	0x0000000182282f08 _dispatch_continuation_pop$VARIANT$mp + 428
28  libdispatch.dylib             	0x00000001822818c0 _dispatch_async_redirect_invoke$VARIANT$mp + 784
29  libdispatch.dylib             	0x0000000182287cf4 _dispatch_root_queue_drain + 600
30  libdispatch.dylib             	0x0000000182287a38 _dispatch_worker_thread3 + 120
31  libsystem_pthread.dylib       	0x000000018252306c _pthread_wqthread + 1268
32  libsystem_pthread.dylib       	0x0000000182522b6c start_wqthread + 4

另外这个库 CPU 占用率太高了