This bug was filed from the Socorro interface and is report bp-4e3601ee-6d57-4a9a-9c1c-1cbf82130710 . ============================================================= Frame Module Signature Source 0 libmozalloc.so mozalloc_abort(char const*) memory/mozalloc/mozalloc_abort.cpp 1 libxul.so Java_org_mozilla_gecko_GeckoAppShell_reportJavaCrash widget/android/AndroidJNI.cpp 2 libmozglue.so Java_org_mozilla_gecko_GeckoAppShell_reportJavaCrash mozglue/android/jni-stubs.inc 3 libdvm.so libdvm.so@0x1e292 4 dalvik-heap (deleted) dalvik-heap (deleted)@0x9086b6 5 data@app@org.mozilla.fennec-2.apk@classes.dex data@app@org.mozilla.fennec-2.apk@classes.dex@0x1e63ed 6 libdvm.so libdvm.so@0x4d413 7 data@app@org.mozilla.fennec-2.apk@classes.dex data@app@org.mozilla.fennec-2.apk@classes.dex@0x1e63eb 8 libmozglue.so Java_org_mozilla_gecko_GeckoAppShell_onSurfaceTextureFrameAvailable mozglue/android/jni-stubs.inc 9 @0xbffffffe 10 libc.so libc.so@0x11811 11 libc.so libc.so@0xcf13 12 libdvm.so libdvm.so@0x4f7c5 13 dalvik-LinearAlloc (deleted) dalvik-LinearAlloc (deleted)@0x347e 14 core.odex core.odex@0x1f49e5 15 dalvik-heap (deleted) dalvik-heap (deleted)@0x1e24ee 16 libdvm.so libdvm.so@0x68c45 17 dalvik-LinearAlloc (deleted) dalvik-LinearAlloc (deleted)@0x2dc01a 18 dalvik-heap (deleted) dalvik-heap (deleted)@0x9086b6 19 dalvik-LinearAlloc (deleted) dalvik-LinearAlloc (deleted)@0x2dc006 20 data@app@org.mozilla.fennec-2.apk@classes.dex data@app@org.mozilla.fennec-2.apk@classes.dex@0x20e350 21 libdvm.so libdvm.so@0x6aebb 22 data@app@org.mozilla.fennec-2.apk@classes.dex data@app@org.mozilla.fennec-2.apk@classes.dex@0x20e350 23 dalvik-heap (deleted) dalvik-heap (deleted)@0x9086b6 24 data@app@org.mozilla.fennec-2.apk@classes.dex data@app@org.mozilla.fennec-2.apk@classes.dex@0x20e350 25 @0x59dffffe 26 data@app@org.mozilla.fennec-2.apk@classes.dex data@app@org.mozilla.fennec-2.apk@classes.dex@0x4e81a 27 libdvm.so libdvm.so@0x4f6cb 28 dalvik-LinearAlloc (deleted) dalvik-LinearAlloc (deleted)@0x2dc006 29 dalvik-LinearAlloc (deleted) dalvik-LinearAlloc (deleted)@0x2dc006 30 libdvm.so libdvm.so@0x4d283 31 dalvik-heap (deleted) dalvik-heap (deleted)@0x9086b6 32 libdvm.so libdvm.so@0x4f56f 33 dalvik-LinearAlloc (deleted) dalvik-LinearAlloc (deleted)@0x2dc006 34 data@app@org.mozilla.fennec-2.apk@classes.dex data@app@org.mozilla.fennec-2.apk@classes.dex@0xe920a 35 dalvik-heap (deleted) dalvik-heap (deleted)@0x9086b6 36 libdvm.so libdvm.so@0x1e3fe 37 libdvm.so libdvm.so@0x276a2 38 libdvm.so libdvm.so@0xa9c96 39 dalvik-LinearAlloc (deleted) dalvik-LinearAlloc (deleted)@0x69ce 40 libdvm.so libdvm.so@0x2b57e 41 libdvm.so libdvm.so@0xa9c96 42 dalvik-LinearAlloc (deleted) dalvik-LinearAlloc (deleted)@0x69ce 43 core.odex core.odex@0x222006 44 libdvm.so libdvm.so@0x5fc33 45 dalvik-LinearAlloc (deleted) dalvik-LinearAlloc (deleted)@0x69ce 46 dalvik-heap (deleted) dalvik-heap (deleted)@0xe92e 47 libdvm.so libdvm.so@0xae1ae 48 dalvik-heap (deleted) dalvik-heap (deleted)@0xe92e 49 libdvm.so libdvm.so@0x8e048 50 dalvik-heap (deleted) dalvik-heap (deleted)@0xda846e 51 dalvik-heap (deleted) dalvik-heap (deleted)@0xe92e 52 libdvm.so libdvm.so@0x5fc5d 53 libdvm.so libdvm.so@0x94d03 54 libdvm.so libdvm.so@0x53cc9 55 dalvik-heap (deleted) dalvik-heap (deleted)@0xda8166 56 dalvik-heap (deleted) dalvik-heap (deleted)@0xda846e 57 libdvm.so libdvm.so@0xae1ae 58 libdvm.so libdvm.so@0xae506 59 libdvm.so libdvm.so@0xae506 60 libdvm.so libdvm.so@0x48d3f 61 libdvm.so libdvm.so@0x48d2d 62 libxul.so SkFontMgr::createStyleSet(int) gfx/skia/src/core/SkFontHost.cpp 63 libxul.so webrtc::videocapturemodule::VideoCaptureAndroid::~VideoCaptureAndroid() media/webrtc/trunk/webrtc/modules/video_capture/android/video_capture_android.cc 64 libxul.so webrtc::RefCountImpl<webrtc::videocapturemodule::VideoCaptureAndroid>::~RefCountImpl() media/webrtc/trunk/webrtc/system_wrappers/interface/ref_count.h 65 libxul.so webrtc::RefCountImpl<webrtc::videocapturemodule::VideoCaptureAndroid>::~RefCountImpl() media/webrtc/trunk/webrtc/system_wrappers/interface/ref_count.h 66 libxul.so webrtc::RefCountImpl<webrtc::videocapturemodule::VideoCaptureAndroid>::Release() media/webrtc/trunk/webrtc/system_wrappers/interface/ref_count.h 67 libxul.so webrtc::ViECapturer::~ViECapturer() media/webrtc/trunk/webrtc/video_engine/vie_capturer.cc 68 libxul.so webrtc::ViECapturer::~ViECapturer() media/webrtc/trunk/webrtc/video_engine/vie_capturer.cc 69 libxul.so webrtc::ViEInputManager::DestroyCaptureDevice(int) media/webrtc/trunk/webrtc/video_engine/vie_input_manager.cc 70 libxul.so webrtc::ViECaptureImpl::ReleaseCaptureDevice(int) media/webrtc/trunk/webrtc/video_engine/vie_capture_impl.cc 71 libxul.so mozilla::MediaEngineWebRTCVideoSource::Deallocate() content/media/webrtc/MediaEngineWebRTCVideo.cpp 72 libxul.so mozilla::MediaOperationRunnable::Run() dom/media/MediaManager.h 73 libxul.so nsThread::ProcessNextEvent(bool, bool*) xpcom/threads/nsThread.cpp 74 libxul.so NS_ProcessNextEvent(nsIThread*, bool) obj-firefox/xpcom/build/nsThreadUtils.cpp 75 libxul.so nsThread::ThreadFunc(void*) xpcom/threads/nsThread.cpp 76 libnss3.so _pt_root nsprpub/pr/src/pthreads/ptthread.c 77 libc.so libc.so@0xe3da 78 libc.so libc.so@0xdac6

It's the Java stack trace that matters: java.lang.NullPointerException at org.webrtc.videoengine.VideoCaptureAndroid.DeleteVideoCaptureAndroid(VideoCaptureAndroid.java:116) at dalvik.system.NativeStart.run(Native Method) In addition, it happened before bug 880437's patch landing (see ftp://ftp.mozilla.org/pub/mobile/nightly/2013-07-09-03-02-04-mozilla-central-android/fennec-25.0a1.multi.android-arm.txt).