I'm trying to fix the crash issue of a mac app. It's using the web view.
I got the report from fabric but I have no idea how to fix it.
Any suggestion?
Crashed: com.apple.main-thread
EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x00000000bbadbeef
Crashed: com.apple.main-thread
0 JavaScriptCore 0x7fff8d7a232e WTFCrash + 62
1 WebCore 0x7fff879ca13d WebCore::DocumentLoader::detachFromFrame() + 269
2 WebKitLegacy 0x7fff866f1f7e WebDocumentLoaderMac::detachFromFrame() + 14
3 WebCore 0x7fff87945178 WebCore::FrameLoader::setDocumentLoader(WebCore::DocumentLoader*) + 104
4 WebCore 0x7fff87ed90a0 WebCore::FrameLoader::transitionToCommitted(WebCore::CachedPage*) + 208
5 WebCore 0x7fff87944a3d WebCore::FrameLoader::commitProvisionalLoad() + 397
6 WebCore 0x7fff879e568d WebCore::DocumentLoader::commitLoad(char const*, int) + 77
7 WebCore 0x7fff879e5254 WebCore::DocumentLoader::dataReceived(WebCore::CachedResource*, char const*, int) + 292
8 WebCore 0x7fff879e4f51 WebCore::CachedRawResource::notifyClientsDataWasReceived(char const*, unsigned int) + 177
9 WebCore 0x7fff879e4b2a WebCore::CachedRawResource::addDataBuffer(WebCore::ResourceBuffer*) + 170
10 WebCore 0x7fff879e4802 WebCore::SubresourceLoader::didReceiveDataOrBuffer(char const*, int, WTF::PassRefPtr<WebCore::SharedBuffer>, long long, WebCore::DataPayloadType) + 210
11 WebCore 0x7fff87a08b0c WebCore::SubresourceLoader::didReceiveBuffer(WTF::PassRefPtr<WebCore::SharedBuffer>, long long, WebCore::DataPayloadType) + 44
12 WebCore 0x7fff87a08a4a WebCore::ResourceLoader::didReceiveBuffer(WebCore::ResourceHandle*, WTF::PassRefPtr<WebCore::SharedBuffer>, int) + 90
13 WebCore 0x7fff87a08985 -[WebCoreResourceHandleAsDelegate connection:didReceiveData:lengthReceived:] + 101
14 CFNetwork 0x7fff8552c81d __65-[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]_block_invoke + 69
15 CFNetwork 0x7fff8552c681 -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:] + 232
16 CFNetwork 0x7fff8552c587 -[NSURLConnectionInternal _withActiveConnectionAndDelegate:] + 48
17 CFNetwork 0x7fff85538f74 _NSURLConnectionDidReceiveData_LengthReceived(_CFURLConnection*, __CFData const*, long, void const*) + 83
18 CFNetwork 0x7fff8552cf3b ___ZN27URLConnectionClient_Classic29_delegate_didReceiveDataArrayEv_block_invoke + 297
19 CFNetwork 0x7fff855e14a3 ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 94
20 CFNetwork 0x7fff8547feec RunloopBlockContext::_invoke_block(void const*, void*) + 72
21 CoreFoundation 0x7fff9122c664 CFArrayApplyFunction + 68
22 CFNetwork 0x7fff8547fdad RunloopBlockContext::perform() + 133
23 CFNetwork 0x7fff8547fb98 MultiplexerSource::perform() + 282
24 CFNetwork 0x7fff8547f9ba MultiplexerSource::_perform(void*) + 72
25 CoreFoundation 0x7fff91260a01 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
26 CoreFoundation 0x7fff91252b8d __CFRunLoopDoSources0 + 269
27 CoreFoundation 0x7fff912521bf __CFRunLoopRun + 927
28 CoreFoundation 0x7fff91251bd8 CFRunLoopRunSpecific + 296
29 HIToolbox 0x7fff82b9356f RunCurrentEventLoopInMode + 235
30 HIToolbox 0x7fff82b932ea ReceiveNextEventCommon + 431
31 HIToolbox 0x7fff82b9312b _BlockUntilNextEventMatchingListInModeWithFilter + 71
32 AppKit 0x7fff8acc88ab _DPSNextEvent + 978
33 AppKit 0x7fff8acc7e58 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 346
34 AppKit 0x7fff8acbdaf3 -[NSApplication run] + 594
35 AppKit 0x7fff8ac3a244 NSApplicationMain + 1832
36 libdyld.dylib 0x7fff896af5c9 start + 1
above is the log. Any idea why it happens and how to fix it?
Related
We have an iOS app with a UIWebView that loads YouTube iframe player to play youtube videos. After iOS 11.3 released we found that there are a lot of javascript core crashes. On Fabric crashlytics the crash stcktrace looks like this
Crashed: WebThread
0 JavaScriptCore 0x18aa48298 JSC::JSLock::DropAllLocks::DropAllLocks(JSC::VM&) + 176
1 JavaScriptCore 0x18aa4826c JSC::JSLock::DropAllLocks::DropAllLocks(JSC::VM&) + 132
2 WebCore 0x18b78b794 SendDelegateMessage(NSInvocation*) + 360
3 WebKitLegacy 0x18cea7c68 CallDelegate(void (*)(), WebView*, objc_object*, objc_selector*, objc_object*, objc_object*, objc_object*) + 144
4 WebKitLegacy 0x18ce1b8d0 WebFrameLoaderClient::dispatchDidFailLoading(WebCore::DocumentLoader*, unsigned long, WebCore::ResourceError const&) + 276
5 WebCore 0x18b7ba660 WebCore::ResourceLoadNotifier::didFailToLoad(WebCore::ResourceLoader*, WebCore::ResourceError const&) + 128
6 WebCore 0x18b7ba118 WebCore::ResourceLoader::cancel(WebCore::ResourceError const&) + 464
7 WebCore 0x18b7b9ea4 WebCore::ResourceLoader::cancel() + 64
8 WebCore 0x18c6bbe90 WebCore::CachedResource::removeClient(WebCore::CachedResourceClient&) + 264
9 WebCore 0x18c680558 WebCore::MediaResource::~MediaResource() + 64
10 WebCore 0x18c680608 WebCore::MediaResource::~MediaResource() + 12
11 libobjc.A.dylib 0x1827daef4 object_cxxDestructFromClass(objc_object*, objc_class*) + 148
12 libobjc.A.dylib 0x1827e8990 objc_destructInstance + 68
13 libobjc.A.dylib 0x1827e89f8 object_dispose + 16
14 WebCore 0x18cbff8f0 -[WebCoreNSURLSessionDataTask dealloc] + 320
15 CoreFoundation 0x1834f24e4 -[__NSDictionaryM dealloc] + 164
16 AVFoundation 0x189130cf8 -[AVAssetCustomURLBridgeForNSURLSession dealloc] + 68
17 AVFoundation 0x18917ce54 -[AVAssetResourceLoader dealloc] + 356
18 AVFoundation 0x189060460 -[AVURLAsset dealloc] + 248
19 AVFoundation 0x189097c34 -[AVPlayerItemTrack dealloc] + 192
20 WebCore 0x18b8a9fac WebCore::AVTrackPrivateAVFObjCImpl::~AVTrackPrivateAVFObjCImpl() + 92
21 WebCore 0x18cbf09dc WebCore::VideoTrackPrivateAVFObjC::~VideoTrackPrivateAVFObjC() + 48
22 WebCore 0x18cbefc7c WebCore::VideoTrack::~VideoTrack() + 96
23 WebCore 0x18b982390 WebCore::TrackEvent::~TrackEvent() + 72
24 JavaScriptCore 0x18aa26228 void JSC::MarkedBlock::Handle::specializedSweep<true, (JSC::MarkedBlock::Handle::EmptyMode)1, (JSC::MarkedBlock::Handle::SweepMode)1, (JSC::MarkedBlock::Handle::SweepDestructionMode)1, (JSC::MarkedBlock::Handle::ScribbleMode)0, (JSC::MarkedBlock::Handle::NewlyAllocatedMode)1, (JSC::MarkedBlock::Handle::MarksMode)1, JSC::JSDestructibleObjectDestroyFunc>(JSC::FreeList*, JSC::MarkedBlock::Handle::EmptyMode, JSC::MarkedBlock::Handle::SweepMode, JSC::MarkedBlock::Handle::SweepDestructionMode, JSC::MarkedBlock::Handle::ScribbleMode, JSC::MarkedBlock::Handle::NewlyAllocatedMode, JSC::MarkedBlock::Handle::MarksMode, JSC::JSDestructibleObjectDestroyFunc const&) + 212
25 JavaScriptCore 0x18aa24950 void JSC::MarkedBlock::Handle::finishSweepKnowingHeapCellType<JSC::JSDestructibleObjectDestroyFunc>(JSC::FreeList*, JSC::JSDestructibleObjectDestroyFunc const&)::'lambda'()::operator()() const + 408
26 JavaScriptCore 0x18aa2444c void JSC::MarkedBlock::Handle::finishSweepKnowingHeapCellType<JSC::JSDestructibleObjectDestroyFunc>(JSC::FreeList*, JSC::JSDestructibleObjectDestroyFunc const&) + 320
27 JavaScriptCore 0x18aa24300 JSC::JSDestructibleObjectHeapCellType::finishSweep(JSC::MarkedBlock::Handle&, JSC::FreeList*) + 32
28 JavaScriptCore 0x18a7ac538 JSC::MarkedBlock::Handle::sweep(JSC::FreeList*) + 372
29 JavaScriptCore 0x18a7aa6fc JSC::LocalAllocator::tryAllocateIn(JSC::MarkedBlock::Handle*) + 40
30 JavaScriptCore 0x18a7aa608 JSC::LocalAllocator::tryAllocateWithoutCollecting() + 48
31 JavaScriptCore 0x18a7aa4c8 JSC::LocalAllocator::allocateSlowCase(JSC::GCDeferralContext*, JSC::AllocationFailureMode) + 292
32 JavaScriptCore 0x18a78f4b8 JSC::CompleteSubspace::allocateNonVirtual(JSC::VM&, unsigned long, JSC::GCDeferralContext*, JSC::AllocationFailureMode) + 216
33 WebCore 0x18c171e3c std::__1::enable_if<std::is_same<WebCore::Event, WebCore::Event>::value, WebCore::JSDOMWrapperConverterTraits<WebCore::Event>::WrapperClass*>::type WebCore::createWrapper<WebCore::Event, WebCore::Event>(WebCore::JSDOMGlobalObject*, WTF::Ref<WebCore::Event, WTF::DumbPtrTraits<WebCore::Event> >&&) + 216
34 WebCore 0x18c170be0 WebCore::toJSNewlyCreated(JSC::ExecState*, WebCore::JSDOMGlobalObject*, WTF::Ref<WebCore::Event, WTF::DumbPtrTraits<WebCore::Event> >&&) + 100
35 WebCore 0x18c170444 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext&, WebCore::Event&) + 872
36 WebCore 0x18c3acbe0 WebCore::EventTarget::fireEventListeners(WebCore::Event&, WTF::Vector<WTF::RefPtr<WebCore::RegisteredEventListener, WTF::DumbPtrTraits<WebCore::RegisteredEventListener> >, 1ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>) + 760
37 WebCore 0x18c3a8798 WebCore::EventTarget::fireEventListeners(WebCore::Event&) + 596
38 WebCore 0x18c3a8524 WebCore::EventContext::handleLocalEvents(WebCore::Event&) const + 120
39 WebCore 0x18c3a9a24 WebCore::dispatchEventInDOM(WebCore::Event&, WebCore::EventPath const&) + 164
40 WebCore 0x18c3a96e8 WebCore::EventDispatcher::dispatchEvent(WebCore::Node&, WebCore::Event&) + 700
41 WebCore 0x18b7cce50 WebCore::HTMLImageLoader::dispatchLoadEvent() + 248
42 WebCore 0x18b7ccd1c WebCore::ImageLoader::dispatchPendingEvent(WebCore::EventSender<WebCore::ImageLoader>*) + 144
43 WebCore 0x18b7ccb94 WebCore::EventSender<WebCore::ImageLoader>::dispatchPendingEvents() + 128
44 WebCore 0x18b743ff0 WebCore::ThreadTimers::sharedTimerFiredInternal() + 352
45 WebCore 0x18b743e7c WebCore::timerFired(__CFRunLoopTimer*, void*) + 28
46 CoreFoundation 0x1835cbaa8 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 28
47 CoreFoundation 0x1835cb76c __CFRunLoopDoTimer + 864
48 CoreFoundation 0x1835cb010 __CFRunLoopDoTimers + 248
49 CoreFoundation 0x1835c8b60 __CFRunLoopRun + 2168
50 CoreFoundation 0x1834e8da8 CFRunLoopRunSpecific + 552
51 WebCore 0x18b775dcc RunWebThread(void*) + 592
52 libsystem_pthread.dylib 0x183249220 _pthread_body + 272
53 libsystem_pthread.dylib 0x183249110 _pthread_body + 290
54 libsystem_pthread.dylib 0x183247b10 thread_start + 4## Heading ##
Any ideas? Is this a YouTube iframe player issue or UIWebView issue?
Thanks.
getting lots of crashes as below in ios11: any idea what could be reason behind it. its happening in ios11 only. webkit framework is included in project.
Crashed: WebThread
0 JavaScriptCore 0x18d513a2c bmalloc::Heap::allocateLarge(std::__1::lock_guard<bmalloc::StaticMutex>&, unsigned long, unsigned long) + 24
1 JavaScriptCore 0x18d513a20 bmalloc::Heap::allocateLarge(std::__1::lock_guard<bmalloc::StaticMutex>&, unsigned long, unsigned long) + 12
2 JavaScriptCore 0x18d5112a0 bmalloc::Allocator::allocateLarge(unsigned long) + 92
3 JavaScriptCore 0x18cb6bef4 WTF::fastMalloc(unsigned long) + 112
4 JavaScriptCore 0x18d11e6a8 JSC::Heap::addExecutable(JSC::ExecutableBase*) + 352
5 JavaScriptCore 0x18d10a288 JSC::FunctionExecutable::finishCreation(JSC::VM&) + 48
6 JavaScriptCore 0x18d44f7cc JSC::UnlinkedFunctionExecutable::link(JSC::VM&, JSC::SourceCode const&, std::optional<int>, JSC::Intrinsic) + 280
7 JavaScriptCore 0x18d207860 JSC::functionPrototypeApplyCodeGenerator(JSC::VM&) + 64
8 JavaScriptCore 0x18d10d81c JSC::FunctionPrototype::addFunctionProperties(JSC::ExecState*, JSC::JSGlobalObject*, JSC::JSFunction**, JSC::JSFunction**, JSC::JSFunction**) + 156
9 JavaScriptCore 0x18d21a9f8 JSC::JSGlobalObject::init(JSC::VM&) + 1300
10 JavaScriptCore 0x18d224898 JSC::JSGlobalObject::finishCreation(JSC::VM&, JSC::JSObject*) + 144
11 WebCore 0x18e015590 WebCore::JSDOMGlobalObject::finishCreation(JSC::VM&, JSC::JSObject*) + 24
12 WebCore 0x18e850840 WebCore::JSDOMWindowBase::finishCreation(JSC::VM&, WebCore::JSDOMWindowProxy*) + 44
13 WebCore 0x18e7d28ac WebCore::JSDOMWindow::finishCreation(JSC::VM&, WebCore::JSDOMWindowProxy*) + 36
14 WebCore 0x18e8548a4 WebCore::JSDOMWindowProxy::setWindow(WTF::RefPtr<WebCore::DOMWindow>&&) + 516
15 WebCore 0x18eed505c WebCore::ScriptController::setDOMWindowForWindowProxy(WebCore::DOMWindow*) + 360
16 WebCore 0x18dfed904 WebCore::FrameLoader::clear(WebCore::Document*, bool, bool, bool) + 476
17 WebCore 0x18e3a42c8 WebCore::DocumentWriter::begin(WebCore::URL const&, bool, WebCore::Document*) + 368
18 WebCore 0x18dfebb58 WebCore::DocumentLoader::commitData(char const*, unsigned long) + 176
19 WebKitLegacy 0x18f3d3bd8 -[WebHTMLRepresentation receivedData:withDataSource:] + 112
20 WebKitLegacy 0x18f3d3af8 -[WebDataSource(WebInternal) _receivedData:] + 68
21 WebKitLegacy 0x18f3d3a98 WebFrameLoaderClient::committedLoad(WebCore::DocumentLoader*, char const*, int) + 112
22 WebCore 0x18e0099c4 WebCore::DocumentLoader::commitLoad(char const*, int) + 172
23 WebCore 0x18e008bec WebCore::DocumentLoader::continueAfterContentPolicy(WebCore::PolicyAction) + 1796
24 WebCore 0x18e3930a0 WebCore::DocumentLoader::responseReceived(WebCore::ResourceResponse const&) + 1820
25 WebCore 0x18e392004 WebCore::DocumentLoader::handleSubstituteDataLoadNow() + 308
26 WebCore 0x18dfaf000 WebCore::ThreadTimers::sharedTimerFiredInternal() + 172
27 WebCore 0x18dfaef40 WebCore::timerFired(__CFRunLoopTimer*, void*) + 28
28 CoreFoundation 0x186152fc0 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 28
29 CoreFoundation 0x186152ce4 __CFRunLoopDoTimer + 864
30 CoreFoundation 0x1861524e4 __CFRunLoopDoTimers + 248
31 CoreFoundation 0x1861500cc __CFRunLoopRun + 1928
32 CoreFoundation 0x18606fe58 CFRunLoopRunSpecific + 436
33 WebCore 0x18dfe0a34 RunWebThread(void*) + 560
34 libsystem_pthread.dylib 0x185dd02b4 _pthread_body + 308
35 libsystem_pthread.dylib 0x185dd0180 _pthread_body + 310
36 libsystem_pthread.dylib 0x185dceb74 thread_start + 4
I have this crash log, but I don't understand how to find what causes an issue.
Thread : Crashed: WebThread
0 WebCore 954995104 WebCore::StyleResolver::loadPendingImages() + 1135
1 WebCore 955192507 WebCore::ResourceRequestBase::~ResourceRequestBase() + 106
2 WebCore 954966933 WebCore::StyleResolver::applyMatchedProperties(WebCore::StyleResolver::MatchResult const&, WebCore::Element const*) + 792
3 WebCore 955009301 WebCore::StyleResolver::styleForElement(WebCore::Element*, WebCore::RenderStyle*, WebCore::StyleSharingBehavior, WebCore::RuleMatchingBehavior, WebCore::RenderRegion*) + 952
4 WebCore 956072077 WebCore::Document::styleForElementIgnoringPendingStylesheets(WebCore::Element*) + 96
5 WebCore 956071899 WebCore::Element::computedStyle(WebCore::PseudoId) + 142
6 WebCore 956433467 WebCore::ComputedStyleExtractor::propertyValue(WebCore::CSSPropertyID, WebCore::EUpdateLayout) const + 466
7 WebCore 957126027 WebCore::CSSComputedStyleDeclaration::getPropertyValue(WebCore::CSSPropertyID) const + 42
8 WebCore 957125931 WebCore::CSSComputedStyleDeclaration::getPropertyValue(WTF::String const&) + 26
9 WebCore 957459107 WebCore::jsCSSStyleDeclarationPrototypeFunctionGetPropertyValue(JSC::ExecState*) + 258
10 JavaScriptCore 838902235 llint_native_call_trampoline + 64
11 JavaScriptCore 838939999 JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 70
12 WebCore 955098071 WebCore::JSMainThreadExecState::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 146
13 WebCore 957106929 WebCore::JSEventListener::handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*) + 520
14 WebCore 956836797 WebCore::EventTarget::fireEventListeners(WebCore::Event*, WebCore::EventTargetData*, WTF::Vector<WebCore::RegisteredEventListener, 1ul, WTF::CrashOnOverflow>&) + 484
15 WebCore 955783727 WebCore::EventTarget::fireEventListeners(WebCore::Event*) + 178
16 WebCore 955784069 WebCore::EventContext::handleLocalEvents(WebCore::Event*) const + 60
17 WebCore 955783067 WebCore::EventDispatcher::dispatch() + 546
18 WebCore 955782519 WebCore::EventDispatchMediator::dispatchEvent(WebCore::EventDispatcher*) const + 10
19 WebCore 955780731 WebCore::EventDispatcher::dispatchEvent(WebCore::Node*, WTF::PassRefPtr<WebCore::EventDispatchMediator>) + 154
20 WebCore 955780413 WebCore::Node::dispatchEvent(WTF::PassRefPtr<WebCore::Event>) + 100
21 WebCore 955830855 WebCore::Document::finishedParsing() + 102
22 WebCore 955791991 WebCore::HTMLDocumentParser::prepareToStopParsing() + 122
23 WebCore 956118393 WebCore::HTMLDocumentParser::notifyFinished(WebCore::CachedResource*) + 68
24 WebCore 956102527 WebCore::CachedResource::checkNotify() + 42
25 WebCore 956102065 WebCore::SubresourceLoader::didFinishLoading(double) + 112
26 WebCore 956101909 WebCore::didFinishLoading(_CFURLConnection*, void const*) + 132
27 CFNetwork 818745231 ___ZN27URLConnectionClient_Classic26_delegate_didFinishLoadingEU13block_pointerFvvE_block_invoke + 74
28 CFNetwork 818740111 ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 54
29 CFNetwork 818942775 ___ZNK17CoreSchedulingSet13_performAsyncEPKcU13block_pointerFvvE_block_invoke + 18
30 CoreFoundation 821665441 CFArrayApplyFunction + 36
31 CFNetwork 818314757 RunloopBlockContext::perform() + 164
32 CFNetwork 818314453 MultiplexerSource::perform() + 220
33 CFNetwork 818314085 MultiplexerSource::_perform(void*) + 48
34 CoreFoundation 822288159 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
35 CoreFoundation 822285287 __CFRunLoopDoSources0 + 206
36 CoreFoundation 822279127 __CFRunLoopRun + 630
37 CoreFoundation 821666929 CFRunLoopRunSpecific + 524
38 CoreFoundation 821666387 CFRunLoopRunInMode + 106
39 WebCore 955674821 RunWebThread(void*) + 420
40 libsystem_pthread.dylib 1000184925 _pthread_body + 140
41 libsystem_pthread.dylib 1000184783 _pthread_start + 102
42 libsystem_pthread.dylib 1000176848 thread_start + 8
I got following crash log from Apple.
I thought that this crash occurs during animation. I have tried to solve it by adding following lines but it is not affected.
[UIView setAnimationsEnabled:NO ]
Log:
Thread : Crashed: WebThread
0 libsystem_kernel.dylib 0x338fbdf0 __pthread_kill + 8
1 libsystem_pthread.dylib 0x3397acc7 pthread_kill + 62
2 libsystem_c.dylib 0x33897909 abort + 76
3 libsystem_malloc.dylib 0x33925331 szone_size + 394
4 libobjc.A.dylib 0x33288621 object_dispose + 20
5 UIKit 0x2828cd8f -[UIViewAnimationState dealloc] + 174
6 libobjc.A.dylib 0x33299d5f objc_object::sidetable_release(bool) + 166
7 UIKit 0x2828ae15 +[UIViewAnimationState popAnimationState] + 340
8 MediaPlayer 0x264a6d07 -[MPVolumeSlider _layoutForAvailableRoutes] + 1322
9 MediaPlayer 0x264a592d -[MPVolumeSlider layoutSubviews] + 60
10 UIKit 0x28255fd3 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 546
11 QuartzCore 0x27c69d29 -[CALayer layoutSublayers] + 128
12 QuartzCore 0x27c6555d CA::Layer::layout_if_needed(CA::Transaction*) + 360
13 UIKit 0x28268bb3 -[UIView(Hierarchy) layoutBelowIfNeeded] + 138
14 UIKit 0x2826e053 -[UISlider setValue:animated:] + 178
15 MediaPlayer 0x264a5ffb -[MPVolumeSlider volumeController:volumeValueDidChange:] + 78
16 MediaPlayer 0x265249c5 -[MPVolumeController updateVolumeValue] + 252
17 MediaPlayer 0x264a5a3b -[MPVolumeSlider didMoveToSuperview] + 126
18 UIKit 0x28254e71 -[UIView(Hierarchy) _postMovedFromSuperview:] + 428
19 UIKit 0x2825f6db -[UIView(Internal) _addSubview:positioned:relativeTo:] + 1498
20 UIKit 0x2825f0fb -[UIView(Hierarchy) addSubview:] + 30
21 MediaPlayer 0x264a8841 -[MPVolumeView _createSubviews] + 236
22 MediaPlayer 0x264a748d -[MPVolumeView _initWithStyle:] + 212
23 MediaPlayer 0x264a7521 -[MPVolumeView initWithFrame:style:] + 80
24 MediaPlayer 0x264a74cb -[MPVolumeView initWithFrame:] + 38
25 UIKit 0x282760c9 -[UIView init] + 44
26 WebCore 0x313b6675 -[WebMediaSessionHelper allocateVolumeView] + 264
27 WebCore 0x313b6927 -[WebMediaSessionHelper initWithCallback:] + 394
28 WebCore 0x313b5a51 WebCore::MediaSessionManageriOS::MediaSessionManageriOS() + 172
29 WebCore 0x313b593d WebCore::MediaSessionManager::sharedManager() + 124
30 WebCore 0x313b4b8d WebCore::MediaSession::MediaSession(WebCore::MediaSessionClient&) + 32
31 WebCore 0x31044b65 WebCore::HTMLMediaSession::create(WebCore::MediaSessionClient&) + 20
32 WebCore 0x31033487 WebCore::HTMLMediaElement::HTMLMediaElement(WebCore::QualifiedName const&, WebCore::Document&, bool) + 1046
33 WebCore 0x3105c60b WebCore::HTMLVideoElement::create(WebCore::QualifiedName const&, WebCore::Document&, bool) + 38
34 WebCore 0x310265d5 WebCore::videoConstructor(WebCore::QualifiedName const&, WebCore::Document&, WebCore::HTMLFormElement*, bool) + 56
35 WebCore 0x31025d29 WebCore::HTMLElementFactory::createElement(WebCore::QualifiedName const&, WebCore::Document&, WebCore::HTMLFormElement*, bool) + 232
36 WebCore 0x30c2df9d WebCore::HTMLDocument::createElement(WTF::AtomicString const&, int&) + 88
37 WebCore 0x30c2dedf WebCore::jsDocumentPrototypeFunctionCreateElement(JSC::ExecState*) + 242
38 JavaScriptCore 0x2606e133 llint_entry + 21314
39 JavaScriptCore 0x2606dcd9 llint_entry + 20200
40 JavaScriptCore 0x2606dcd9 llint_entry + 20200
41 JavaScriptCore 0x2606dd27 llint_entry + 20278
42 JavaScriptCore 0x2606dd27 llint_entry + 20278
43 JavaScriptCore 0x2606dd27 llint_entry + 20278
44 JavaScriptCore 0x2606dd27 llint_entry + 20278
45 JavaScriptCore 0x2606dd27 llint_entry + 20278
46 JavaScriptCore 0x2606de2d llint_entry + 20540
47 JavaScriptCore 0x2606de2d llint_entry + 20540
48 JavaScriptCore 0x26068bdf callToJavaScript + 334
49 JavaScriptCore 0x25ff83b5 JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) + 36
50 JavaScriptCore 0x25e2e753 JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::JSObject*) + 5738
51 JavaScriptCore 0x25e2cf9b JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, JSC::JSValue*) + 358
52 WebCore 0x314e9b29 WebCore::ScriptController::evaluateInWorld(WebCore::ScriptSourceCode const&, WebCore::DOMWrapperWorld&) + 196
53 WebCore 0x30c48e7b WebCore::ScriptController::evaluate(WebCore::ScriptSourceCode const&) + 26
54 WebCore 0x30c48e1f WebCore::ScriptElement::executeScript(WebCore::ScriptSourceCode const&) + 234
55 WebCore 0x30c2ee53 WebCore::ScriptElement::prepareScript(WTF::TextPosition const&, WebCore::ScriptElement::LegacyTypeSupport) + 754
56 WebCore 0x30cc88b3 WebCore::HTMLScriptRunner::runScript(WebCore::Element*, WTF::TextPosition const&) + 202
57 WebCore 0x30cc87a3 WebCore::HTMLScriptRunner::execute(WTF::PassRefPtr<WebCore::Element>, WTF::TextPosition const&) + 34
58 WebCore 0x30cc8735 WebCore::HTMLDocumentParser::runScriptsForPausedTreeBuilder() + 52
59 WebCore 0x30c7094f WebCore::HTMLDocumentParser::canTakeNextToken(WebCore::HTMLDocumentParser::SynchronousMode, WebCore::PumpSession&) + 50
60 WebCore 0x30c6fedd WebCore::HTMLDocumentParser::pumpTokenizer(WebCore::HTMLDocumentParser::SynchronousMode) + 344
61 WebCore 0x30cd0f3f WebCore::HTMLDocumentParser::resumeParsingAfterScriptExecution() + 78
62 WebCore 0x30ccf9f1 non-virtual thunk to WebCore::HTMLDocumentParser::notifyFinished(WebCore::CachedResource*) + 72
63 WebCore 0x30ccca8b WebCore::CachedResource::checkNotify() + 58
64 WebCore 0x30ccc895 WebCore::SubresourceLoader::didFinishLoading(double) + 128
65 CFNetwork 0x2462fc8f ___ZN27URLConnectionClient_Classic26_delegate_didFinishLoadingEU13block_pointerFvvE_block_invoke + 78
66 CFNetwork 0x246cd365 ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 60
67 CFNetwork 0x24620985 RunloopBlockContext::_invoke_block(void const*, void*) + 60
68 CoreFoundation 0x24aebc6d CFArrayApplyFunction + 36
69 CFNetwork 0x2462083f RunloopBlockContext::perform() + 182
70 CFNetwork 0x24620705 MultiplexerSource::perform() + 216
71 CFNetwork 0x24620599 MultiplexerSource::_perform(void*) + 48
72 CoreFoundation 0x24ba1faf __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
73 CoreFoundation 0x24ba1451 __CFRunLoopDoSources0 + 364
74 CoreFoundation 0x24b9fa25 __CFRunLoopRun + 772
75 CoreFoundation 0x24aec201 CFRunLoopRunSpecific + 476
76 CoreFoundation 0x24aec013 CFRunLoopRunInMode + 106
77 WebCore 0x30c8c063 RunWebThread(void*) + 418
78 libsystem_pthread.dylib 0x33979e23 _pthread_body + 138
79 libsystem_pthread.dylib 0x33979d97 _pthread_start + 118
80 libsystem_pthread.dylib 0x33977b20 thread_start + 8
E.g. I have this trace.
Thread : Crashed: com.apple.main-thread
0 libsystem_kernel.dylib 0x32fe2df0 __pthread_kill + 8
1 libsystem_pthread.dylib 0x33062c97 pthread_kill + 62
2 libsystem_c.dylib 0x32f81939 abort + 76
3 libc++abi.dylib 0x3217fbbd __cxa_bad_cast
4 libc++abi.dylib 0x3219966f default_terminate_handler() + 266
5 libobjc.A.dylib 0x32973f11 _objc_terminate() + 192
or this
Thread : Crashed: com.apple.main-thread
0 CoreFoundation 0x2d60eab8 __CFBasicHashDeallocate + 48
1 CoreFoundation 0x2d52488f CFRelease + 462
2 QuartzCore 0x2fa8d635 CA::release_objects(X::List<void const*>*) + 16
3 QuartzCore 0x2fa8cec7 CA::Layer::~Layer() + 242
4 QuartzCore 0x2fa8e431 CA::release_root_if_unused(CA::Layer*, CA::Layer*, void*) + 48
5 QuartzCore 0x2fa8e3ad x_hash_table_remove_if + 68
6 QuartzCore 0x2fa89443 CA::Transaction::commit() + 142
7 UIKit 0x2fe0940b _afterCACommitHandler + 126
8 CoreFoundation 0x2d5bf255 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 20
9 CoreFoundation 0x2d5bcbf9 __CFRunLoopDoObservers + 284
10 CoreFoundation 0x2d5bcf3b __CFRunLoopRun + 730
11 CoreFoundation 0x2d527ebf CFRunLoopRunSpecific + 522
12 CoreFoundation 0x2d527ca3 CFRunLoopRunInMode + 106
13 GraphicsServices 0x3244e663 GSEventRunModal + 138
14 UIKit 0x2fe7414d UIApplicationMain + 1136
15 myapp 0x0009c6f3 main (main.m:6)
or this
Thread : Crashed: WebThread
0 libobjc.A.dylib 0x31ea0f46 objc_msgSend + 5
1 UIKit 0x272eeea1 +[UIViewAnimationState popAnimationState] + 320
2 MediaPlayer 0x2563056b -[MPVolumeSlider _layoutForAvailableRoutes] + 1410
3 MediaPlayer 0x2562f1b5 -[MPVolumeSlider layoutSubviews] + 60
4 UIKit 0x272ba7ff -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 514
5 QuartzCore 0x26ce0835 -[CALayer layoutSublayers] + 136
6 QuartzCore 0x26cdc20d CA::Layer::layout_if_needed(CA::Transaction*) + 360
7 UIKit 0x272ccf77 -[UIView(Hierarchy) layoutBelowIfNeeded] + 138
8 UIKit 0x272d2463 -[UISlider setValue:animated:] + 178
9 MediaPlayer 0x2562f8ab -[MPVolumeSlider volumeController:volumeValueDidChange:] + 78
10 MediaPlayer 0x2569391d -[MPVolumeController updateVolumeValue] + 252
11 MediaPlayer 0x2562f2c3 -[MPVolumeSlider didMoveToSuperview] + 126
12 UIKit 0x272b9721 -[UIView(Hierarchy) _postMovedFromSuperview:] + 428
13 UIKit 0x272c3bcf -[UIView(Internal) _addSubview:positioned:relativeTo:] + 1462
14 UIKit 0x272c360f -[UIView(Hierarchy) addSubview:] + 30
15 MediaPlayer 0x25632099 -[MPVolumeView _createSubviews] + 236
16 MediaPlayer 0x25630ce5 -[MPVolumeView _initWithStyle:] + 212
17 MediaPlayer 0x25630d79 -[MPVolumeView initWithFrame:style:] + 80
18 MediaPlayer 0x25630d23 -[MPVolumeView initWithFrame:] + 38
19 UIKit 0x272da3a1 -[UIView init] + 44
20 WebCore 0x2fdcd1cf -[WebMediaSessionHelper initWithCallback:] + 178
21 WebCore 0x2fdcc611 WebCore::MediaSessionManageriOS::MediaSessionManageriOS() + 172
22 WebCore 0x2fdcc4fd WebCore::MediaSessionManager::sharedManager() + 124
23 WebCore 0x2fdcb785 WebCore::MediaSession::MediaSession(WebCore::MediaSessionClient&) + 32
24 WebCore 0x2fa5fe75 WebCore::HTMLMediaSession::create(WebCore::MediaSessionClient&) + 20
25 WebCore 0x2fa4e81f WebCore::HTMLMediaElement::HTMLMediaElement(WebCore::QualifiedName const&, WebCore::Document&, bool) + 1046
26 WebCore 0x2fa77917 WebCore::HTMLVideoElement::create(WebCore::QualifiedName const&, WebCore::Document&, bool) + 38
27 WebCore 0x2fa41b79 WebCore::videoConstructor(WebCore::QualifiedName const&, WebCore::Document&, WebCore::HTMLFormElement*, bool) + 56
28 WebCore 0x2fa412cd WebCore::HTMLElementFactory::createElement(WebCore::QualifiedName const&, WebCore::Document&, WebCore::HTMLFormElement*, bool) + 232
29 WebCore 0x2f64b53d WebCore::HTMLDocument::createElement(WTF::AtomicString const&, int&) + 88
30 WebCore 0x2f64b47f WebCore::jsDocumentPrototypeFunctionCreateElement(JSC::ExecState*) + 242
31 JavaScriptCore 0x2521d783 llint_entry + 21314
32 JavaScriptCore 0x2521d377 llint_entry + 20278
33 JavaScriptCore 0x2521d377 llint_entry + 20278
34 JavaScriptCore 0x2521d377 llint_entry + 20278
35 JavaScriptCore 0x2521822f callToJavaScript + 334
36 JavaScriptCore 0x251a7d09 JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) + 36
37 JavaScriptCore 0x24fde3fb JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*, JSC::JSObject*) + 5738
38 JavaScriptCore 0x24fdcc43 JSC::evaluate(JSC::ExecState*, JSC::SourceCode const&, JSC::JSValue, JSC::JSValue*) + 358
39 WebCore 0x2fefd539 WebCore::ScriptController::evaluateInWorld(WebCore::ScriptSourceCode const&, WebCore::DOMWrapperWorld&) + 196
40 WebCore 0x2f666173 WebCore::ScriptController::evaluate(WebCore::ScriptSourceCode const&) + 26
41 WebCore 0x2f666117 WebCore::ScriptElement::executeScript(WebCore::ScriptSourceCode const&) + 234
42 WebCore 0x2f6ecb05 WebCore::HTMLScriptRunner::executePendingScriptAndDispatchEvent(WebCore::PendingScript&) + 156
43 WebCore 0x2f6e8059 WebCore::HTMLScriptRunner::executeParsingBlockingScripts() + 244
44 WebCore 0x2f6e576d WebCore::HTMLDocumentParser::runScriptsForPausedTreeBuilder() + 52
45 WebCore 0x2f68dd77 WebCore::HTMLDocumentParser::canTakeNextToken(WebCore::HTMLDocumentParser::SynchronousMode, WebCore::PumpSession&) + 50
46 WebCore 0x2f68d305 WebCore::HTMLDocumentParser::pumpTokenizer(WebCore::HTMLDocumentParser::SynchronousMode) + 344
47 WebCore 0x2f6edf3f WebCore::HTMLDocumentParser::resumeParsingAfterScriptExecution() + 78
48 WebCore 0x2f672c1d WebCore::HTMLDocumentParser::executeScriptsWaitingForStylesheets() + 44
49 WebCore 0x2f66ff7b WebCore::Document::didRemoveAllPendingStylesheet() + 66
50 WebCore 0x2f738151 WebCore::HTMLLinkElement::sheetLoaded() + 76
51 WebCore 0x2f66fe93 WebCore::StyleSheetContents::checkLoaded() + 130
52 WebCore 0x2fa4d415 WebCore::HTMLLinkElement::setCSSStyleSheet(WTF::String const&, WebCore::URL const&, WTF::String const&, WebCore::CachedCSSStyleSheet const*) + 508
53 WebCore 0x2f6ee08b WebCore::CachedCSSStyleSheet::checkNotify() + 246
54 WebCore 0x2f737a79 WebCore::CachedCSSStyleSheet::finishLoading(WebCore::ResourceBuffer*) + 192
55 WebCore 0x2f6e9893 WebCore::SubresourceLoader::didFinishLoading(double) + 78
56 CFNetwork 0x2380df5f ___ZN27URLConnectionClient_Classic26_delegate_didFinishLoadingEU13block_pointerFvvE_block_invoke + 78
57 CFNetwork 0x238aaff9 ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 60
58 CFNetwork 0x237fed8d RunloopBlockContext::_invoke_block(void const*, void*) + 60
59 CoreFoundation 0x23cb1e1d CFArrayApplyFunction + 36
60 CFNetwork 0x237fec47 RunloopBlockContext::perform() + 182
61 CFNetwork 0x237feb0d MultiplexerSource::perform() + 216
62 CFNetwork 0x237fe9a1 MultiplexerSource::_perform(void*) + 48
63 CoreFoundation 0x23d66fbf __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
64 CoreFoundation 0x23d663cf __CFRunLoopDoSources0 + 218
65 CoreFoundation 0x23d64a35 __CFRunLoopRun + 772
66 CoreFoundation 0x23cb23b1 CFRunLoopRunSpecific + 476
67 CoreFoundation 0x23cb21c3 CFRunLoopRunInMode + 106
68 WebCore 0x2f6a9483 RunWebThread(void*) + 418
69 libsystem_pthread.dylib 0x32567e23 _pthread_body + 138
70 libsystem_pthread.dylib 0x32567d97 _pthread_start + 118
How can I go about to solve these?
I'm also seeing the crashes described above in all of my apps (Hockeyapp reporting). I have no idea what I can do to resolve them, as they seem to be happening in iOS API's. They are only showing up on iOS8 devices...