Force removing ActivityRecord no saved state问题的原因分析

关键字，crash

Force removing ActivityRecord,app died, no saved state的原因

相机拍摄的过程中断电，拍了一张黑图

I/ActivityManager(  467): Process com.ibotn.ibotncamera (pid 2855) has died

W/ActivityManager(  467): Scheduling restart of crashed service com.ibotn.ibotncamera/.service.CameraPreviewService in 4096000ms

W/ActivityManager(  467): Force removing ActivityRecord{2b3991ac u0 com.ibotn.ibotncamera/.TrackingActivity t73}: app died, no saved state

D/CameraHal(  193): stop watchdog

W/CameraClient(  193): native_window_api_disconnect failed: Broken pipe (-32)

I/CameraClient(  193): Destroying camera 0

E/        (  193): OMX-In compMessageHandlerFunction Destructor has been called. So exit from the loop

E/        (  193): OMX-In compMessageHandlerFunction Destructor has been called. So exit from the loop

D/CameraHal(  193): stop watchdog

E/PerformanceManager(  580): performance service not connect!