I'm running an app on LG G Pad 8.3, with Android 4.4.2. The app uses OpenCV to process video input and also uses GPS information. 20-30 seconds after starting, the app crashes without a message. The debug output is pasted below. It seems that this line: E/LocSvc_ApiV02( 865): I/<--- void globalEventCb(locClientHandleType, uint32_t, locClientEventIndUnionType, void*) line 81 QMI_LOC_EVENT_POSITION_REPORT_IND_V02 is the important one, followed by "Location listener died" shortly after. I haven't been able to find sufficient information on these. Also interestingly, on my Samsung Galaxy S3 mini (Android 4.2.2), the same app works without any issues.
E/mm-camera-intf( 347): VIDEO_DENOISER_PROCESSING = 6439.000000us 1920x1080
E/QCameraHWI_Preview( 347): Qandroid::status_t android::QCameraStream_preview::processPreviewFrameWithDisplay(mm_camera_super_buf_t*): PCB callback enabled
E/QCameraHWI_Preview( 347): void android::QCameraStream_preview::resizePreviewFrame(camera_memory_t*) : E
D/QCameraHWI_Preview( 347): void android::QCameraStream_preview::resizePreviewFrame(camera_memory_t*) : X
D/CameraClient( 347): dataCallback(16)
D/CameraClient( 347): frame is copied
D/CameraClient( 347): copyFrameAndPostCopiedFrame
D/CameraClient( 347): setPreviewCallbackFlag(0) (pid 28124)
E/QualcommCamera( 347): Qvoid android::disable_msg_type(camera_device*, int32_t): E
I/QCameraHWI( 347): disableMsgType: E
I/QCameraHWI( 347): disableMsgType: X, msgType =0x10, mMsgEnabled=0xc0d
D/JavaCameraView(28124): Preview Frame received. Frame size: 3110400
D/CameraClient( 347): setPreviewCallbackFlag(5) (pid 28124)
I/QCameraHWI( 347): enableMsgType: E, msgType =0x10
I/QCameraHWI( 347): enableMsgType: X, msgType =0x10, mMsgEnabled=0xc1d
E/mm-camera-intf( 347): VIDEO_DENOISER_PROCESSING = 10711.000000us 1920x1080
E/QCameraHWI_Preview( 347): Qandroid::status_t android::QCameraStream_preview::processPreviewFrameWithDisplay(mm_camera_super_buf_t*): PCB callback enabled
E/QCameraHWI_Preview( 347): void android::QCameraStream_preview::resizePreviewFrame(camera_memory_t*) : E
D/QCameraHWI_Preview( 347): void android::QCameraStream_preview::resizePreviewFrame(camera_memory_t*) : X
D/CameraClient( 347): dataCallback(16)
D/CameraClient( 347): frame is copied
D/CameraClient( 347): copyFrameAndPostCopiedFrame
D/CameraClient( 347): setPreviewCallbackFlag(0) (pid 28124)
E/QualcommCamera( 347): Qvoid android::disable_msg_type(camera_device*, int32_t): E
I/QCameraHWI( 347): disableMsgType: E
I/QCameraHWI( 347): disableMsgType: X, msgType =0x10, mMsgEnabled=0xc0d
D/JavaCameraView(28124): Preview Frame received. Frame size: 3110400
D/CameraClient( 347): setPreviewCallbackFlag(5) (pid 28124)
I/QCameraHWI( 347): enableMsgType: E, msgType =0x10
I/QCameraHWI( 347): enableMsgType: X, msgType =0x10, mMsgEnabled=0xc1d
E/mm-camera-intf( 347): VIDEO_DENOISER_PROCESSING = 8362.000000us 1920x1080
E/QCameraHWI_Preview( 347): Qandroid::status_t android::QCameraStream_preview::processPreviewFrameWithDisplay(mm_camera_super_buf_t*): PCB callback enabled
E/QCameraHWI_Preview( 347): void android::QCameraStream_preview::resizePreviewFrame(camera_memory_t*) : E
D/QCameraHWI_Preview( 347): void android::QCameraStream_preview::resizePreviewFrame(camera_memory_t*) : X
D/CameraClient( 347): dataCallback(16)
D/CameraClient( 347): frame is copied
D/CameraClient( 347): copyFrameAndPostCopiedFrame
D/CameraClient( 347): setPreviewCallbackFlag(0) (pid 28124)
E/QualcommCamera( 347): Qvoid android::disable_msg_type(camera_device*, int32_t): E
I/QCameraHWI( 347): disableMsgType: E
I/QCameraHWI( 347): disableMsgType: X, msgType =0x10, mMsgEnabled=0xc0d
D/JavaCameraView(28124): Preview Frame received. Frame size: 3110400
D/CameraClient( 347): setPreviewCallbackFlag(5) (pid 28124)
I/QCameraHWI( 347): enableMsgType: E, msgType =0x10
I/QCameraHWI( 347): enableMsgType: X, msgType =0x10, mMsgEnabled=0xc1d
E/mm-camera-intf( 347): VIDEO_DENOISER_PROCESSING = 7751.000000us 1920x1080
E/QCameraHWI_Preview( 347): Qandroid::status_t android::QCameraStream_preview::processPreviewFrameWithDisplay(mm_camera_super_buf_t*): PCB callback enabled
E/QCameraHWI_Preview( 347): void android::QCameraStream_preview::resizePreviewFrame(camera_memory_t*) : E
D/QCameraHWI_Preview( 347): void android::QCameraStream_preview::resizePreviewFrame(camera_memory_t*) : X
D/CameraClient( 347): dataCallback(16)
D/CameraClient( 347): frame is copied
D/CameraClient( 347): copyFrameAndPostCopiedFrame
E/LocSvc_ApiV02( 865): I/<--- void globalEventCb(locClientHandleType, uint32_t, locClientEventIndUnionType, void*) line 81 QMI_LOC_EVENT_POSITION_REPORT_IND_V02
E/mm-camera( 379): afd_algo_run: AFD success, std_width -1, flicker_freq 60
I/Vold ( 336): [LGE][VOLD][NetlinkHandler.cpp][onEvent()] subsys:cpu, action:0
I/Vold ( 336): [LGE][VOLD][NetlinkHandler.cpp][onEvent()] subsys:cpu, action:0
D/LocationManagerService( 865): Location listener died
I/LocationManagerService( 865): remove 42e000a8
I/ActivityManager( 865): Process com.example.opencvhello (pid 28124) has died.
I/WindowState( 865): WIN DEATH: Window{42acb930 u0 com.example.opencvhello/com.example.opencvhello.MainActivity}
W/ActivityManager( 865): Force removing ActivityRecord{42b66ae0 u0 com.example.opencvhello/.MainActivity t56}: app died, no saved state
W/CameraService( 347): Disconnecting camera client 0xb8d926a0 since the binder for it died (this pid 347)
D/CameraClient( 347): disconnect E (pid 347)
D/CameraClient( 347): hardware teardown
E/QualcommCamera( 347): Qvoid android::disable_msg_type(camera_device*, int32_t): E
I/QCameraHWI( 347): disableMsgType: E
I/QCameraHWI( 347): disableMsgType: X, msgType =0xffff, mMsgEnabled=0x0
E/QualcommCamera( 347): Qvoid android::stop_preview(camera_device*): E
I/QCameraHWI( 347): void android::QCameraHardwareInterface::stopPreview(): stopPreview: E
As answered here, try calling the garbage collector manually in onCameraFrame() as such :
System.gc();
That solved my problem where the app closed without any error after a minute or so.