1061748 - crash in libsystem_platform.dylib@0x4e75

Status: RESOLVED DUPLICATE of bug 1061475

(Hello (Loop) :: Client, defect)

Description

[u279076]

This bug was filed from the Socorro interface and is 
report bp-59333827-93ad-4c60-afbb-864d92140902.
=============================================================
0 	libsystem_platform.dylib 	libsystem_platform.dylib@0x4e75 	
1 	XUL 	-[VideoCaptureMacQTKitInfoObjC getDeviceNamesFromIndex:DefaultName:WithLength:AndUniqueID:WithLength:AndProductID:WithLength:] 	media/webrtc/trunk/webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit_info_objc.mm
2 	XUL 	webrtc::videocapturemodule::VideoCaptureMacQTKitInfo::GetDeviceName(unsigned int, char*, unsigned int, char*, unsigned int, char*, unsigned int) 	media/webrtc/trunk/webrtc/modules/video_capture/mac/qtkit/video_capture_qtkit_info.mm
3 	XUL 	webrtc::ViEInputManager::GetDeviceName(unsigned int, char*, unsigned int, char*, unsigned int) 	media/webrtc/trunk/webrtc/video_engine/vie_input_manager.cc
4 	XUL 	mozilla::MediaEngineWebRTCVideoSource::Refresh(int) 	content/media/webrtc/MediaEngineWebRTCVideo.cpp
5 	XUL 	mozilla::MediaEngineWebRTC::EnumerateVideoDevices(mozilla::MediaSourceType, nsTArray<nsRefPtr<mozilla::MediaEngineVideoSource> >*) 	content/media/webrtc/MediaEngineWebRTC.cpp
6 	XUL 	mozilla::GetSources<mozilla::MediaEngineVideoSource, mozilla::VideoTrackConstraintsN> 	dom/media/MediaManager.cpp
7 	XUL 	mozilla::GetUserMediaDevicesRunnable::Run() 	dom/media/MediaManager.cpp
8 	XUL 	nsThread::ProcessNextEvent(bool, bool*) 	xpcom/threads/nsThread.cpp
9 	XUL 	NS_ProcessNextEvent(nsIThread*, bool) 	xpcom/glue/nsThreadUtils.cpp
10 	XUL 	mozilla::ipc::MessagePumpForNonMainThreads::Run(base::MessagePump::Delegate*) 	ipc/glue/MessagePump.cpp
11 	XUL 	MessageLoop::Run() 	ipc/chromium/src/base/message_loop.cc
12 	XUL 	nsThread::ThreadFunc(void*) 	xpcom/threads/nsThread.cpp
13 	libnss3.dylib 	_pt_root 	nsprpub/pr/src/pthreads/ptthread.c
Ø 14 	libsystem_pthread.dylib 	libsystem_pthread.dylib@0x1898 	
Ø 15 	libsystem_pthread.dylib 	libsystem_pthread.dylib@0x1729 	
Ø 16 	libsystem_pthread.dylib 	libsystem_pthread.dylib@0x5fc8 	
17 	libnss3.dylib 	libnss3.dylib@0x20467f 	
=============================================================

This crash is reproducible for me in today's Nightly on Mac OS X 10.9.

Steps:
1. Load https://call.mozilla.com/#call/Ak-SD6KGVNQ
2. Click "start call"
3. Click "accept" when the Loop panel appears
> Crash