1118173 - [FFOS7715 v2.1][camera]After monkey test,camera can't open preview.

Status: RESOLVED FIXED

(Firefox OS Graveyard :: Gaia::Camera, defect)

Description

[jinchao.wang]

Description:After monkey test,camera can't open preview.And I kill camera from "recent app windows", and camera can't recover. Reboot the phone, camera recover.

Device: SPRD 7715ga

Steps to Reproduce:
1) after monkey test

Actual Result：Camera can open but don't display preview.

Expected Result：Camera can open and display preview.

Repro frequency：1/10

Comment 1

[jinchao.wang]

***********I found all views loaded by controller.lazy  are not displayed.**************
./app.js：
loadLazyControllers 
loadLazyModules
onCriticalPathDone
this.once('viewfinder:visible', this.onCriticalPathDone);

./controllers/viewfinder.js：
this.views.viewfinder.on('fadedin', this.app.firer('viewfinder:visible'));
ViewfinderController.prototype.show
this.camera.on('preview:started', this.show);


./lib/camera/camera.js:
Camera.prototype.onPreviewStateChange = function(state) {
  this.emit('preview:' + state);
};

this.mozCamera.onPreviewStateChange = this.onPreviewStateChange;
*********So function of onPreviewStateChange didn't be called anymore *********
I set eight breakpoints in gecko on preallocated process,and then click camera icon on Homescreen to open camera   >>>>
b mozilla::nsDOMCameraControl::OnPreviewStateChange
b mozilla::DOMCameraControlListener::OnPreviewStateChange(mozilla::CameraControlListener::PreviewState)
b mozilla::CameraControlImpl::OnPreviewStateChange
b mozilla::nsGonkCameraControl::StartPreviewImpl
b mozilla::CameraControlImpl::Start(mozilla::ICameraControl::Configuration const*)
b mozilla::nsDOMCameraControl::nsDOMCameraControl
b nsDOMCameraManager::PermissionAllowed
b nsDOMCameraManager::GetCamera


What happened as below >>>>>
(gdb) c
Continuing.

Breakpoint 8, nsDOMCameraManager::GetCamera (this=0xb33d6440, aCamera=..., aInitialConfig=..., aOnSuccess=..., 
    aOnError=..., aRv=...) at ../../../gecko/dom/camera/DOMCameraManager.cpp:268
268	{
(gdb) bt
#0  nsDOMCameraManager::GetCamera (this=0xb33d6440, aCamera=..., aInitialConfig=..., aOnSuccess=..., aOnError=..., 
    aRv=...) at ../../../gecko/dom/camera/DOMCameraManager.cpp:268
#1  0xb6ef4dec in malloc_mutex_unlock (mutex=0x0) at ../../../gecko/memory/mozjemalloc/jemalloc.c:1636
#2  arena_malloc_small (zero=192, size=3196778356, arena=0xb3f73cb0)
    at ../../../gecko/memory/mozjemalloc/jemalloc.c:4058
#3  arena_malloc (arena=0xb3f73cb0, size=<optimized out>, zero=<optimized out>)
    at ../../../gecko/memory/mozjemalloc/jemalloc.c:4118
#4  0xb34e3c40 in ?? ()
#5  0xb34e3c40 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb) c
Continuing.
[New Thread 4088.4098]

Breakpoint 6, mozilla::nsDOMCameraControl::nsDOMCameraControl (this=0xb34c34a0, aCameraId=1, aInitialConfig=..., 
    aOnSuccess=0x0, aOnError=0xb6b82000, aWindow=0xf8) at ../../../gecko/dom/camera/DOMCameraControl.cpp:140
140	nsDOMCameraControl::nsDOMCameraControl(uint32_t aCameraId,
(gdb) bt
#0  mozilla::nsDOMCameraControl::nsDOMCameraControl (this=0xb34c34a0, aCameraId=1, aInitialConfig=..., aOnSuccess=0x0, 
    aOnError=0xb6b82000, aWindow=0xf8) at ../../../gecko/dom/camera/DOMCameraControl.cpp:140
#1  0xb571c620 in Revoke (this=0xb2e0c508) at ../../dist/include/nsThreadUtils.h:296
#2  ~nsRunnableMethodReceiver (this=0xb2e0c508, __in_chrg=<optimized out>) at ../../dist/include/nsThreadUtils.h:295
#3  nsRunnableMethodImpl<void (mozilla::CameraPreviewMediaStream::*)(), void, true>::~nsRunnableMethodImpl (
    this=0xb2e0c500, __in_chrg=<optimized out>) at ../../dist/include/nsThreadUtils.h:371
#4  0x000000f8 in ?? ()
#5  0x000000f8 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb) c
Continuing.
[New Thread 4088.4196]
[Switching to Thread 4088.4196]

Breakpoint 3, mozilla::CameraControlImpl::OnPreviewStateChange (this=0xb3770b40, 
    aNewState=mozilla::CameraControlListener::kPreviewStopped) at ../../../gecko/dom/camera/CameraControlImpl.cpp:217
217	{
(gdb) bt
#0  mozilla::CameraControlImpl::OnPreviewStateChange (this=0xb3770b40, 
    aNewState=mozilla::CameraControlListener::kPreviewStopped) at ../../../gecko/dom/camera/CameraControlImpl.cpp:217
\#1  0xb571b898 in get (this=0x7f6e8b04) at ../../dist/include/nsAutoPtr.h:1017
#2  operator mozilla::CameraControlListener* (this=0x7f6e8b04) at ../../dist/include/nsAutoPtr.h:1030
#3  mozilla::CameraControlImpl::OnRateLimitPreview (this=0xb3fc6360, aLimit=<optimized out>)
    at ../../../gecko/dom/camera/CameraControlImpl.cpp:255
#4  0xb337b740 in ?? ()
#5  0xb337b740 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb) c
Continuing.

Breakpoint 3, mozilla::CameraControlImpl::OnPreviewStateChange (this=0xb3770b40, aNewState=(unknown: 4))
    at ../../../gecko/dom/camera/CameraControlImpl.cpp:217
217	{
(gdb) bt
#0  mozilla::CameraControlImpl::OnPreviewStateChange (this=0xb3770b40, aNewState=(unknown: 4))
    at ../../../gecko/dom/camera/CameraControlImpl.cpp:217
#1  0xb571b898 in get (this=0x8001e304) at ../../dist/include/nsAutoPtr.h:1017
#2  operator mozilla::CameraControlListener* (this=0x8001e304) at ../../dist/include/nsAutoPtr.h:1030
#3  mozilla::CameraControlImpl::OnRateLimitPreview (this=0xb3fc6360, aLimit=<optimized out>)
    at ../../../gecko/dom/camera/CameraControlImpl.cpp:255
#4  0xb337b740 in ?? ()
#5  0xb337b740 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)


No other Breakpoint happend when camera open. The occurrence of the breakpoints is not the same with normal startup process.

Comment 2

[becker hsieh{:behsieh}]

hi jinchao:
can you please attached full log ?
when issue happend did you check in driver side , is any preview callback send from driver?
thanks

Comment 3

[jinchao.wang]

Hi becker hsieh:
    The scene has been destroyed.  I didn't check in driver side. I only did some adb test in gecko, found that some error in gecko.
    The log package when problem occur can't be extracted. I can't provide you with full log.
    As our test group can't reproduce this issue, this is a low priority bug. You can solve other problem. If our QA can't reproduce this issue, I will close this bug myself. If reproduce,I will provide you with full log.

Comment 4

[becker hsieh{:behsieh}]

hi jinchao:
thanks for the info.

Comment 5

[jinchao.wang]

not reproduce

Comment 6

[jinchao.wang]

not reproduce