<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>138961</bug_id>
          
          <creation_ts>2014-11-21 05:08:37 -0800</creation_ts>
          <short_desc>crash in CAAnimation dealloc (CA::release_objects X::List)</short_desc>
          <delta_ts>2016-01-29 12:01:35 -0800</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Media</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>iPhone / iPad</rep_platform>
          <op_sys>iOS 8.1</op_sys>
          <bug_status>REOPENED</bug_status>
          <resolution></resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>InRadar</keywords>
          <priority>P2</priority>
          <bug_severity>Critical</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Daniel">danielo</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>andrei_palchys</cc>
    
    <cc>ap</cc>
    
    <cc>danny.zlobinsky</cc>
    
    <cc>ddkilzer</cc>
    
    <cc>eric.carlson</cc>
    
    <cc>icloutier</cc>
    
    <cc>jer.noble</cc>
    
    <cc>sydneyitguy</cc>
    
    <cc>webkit-bug-importer</cc>
    
    <cc>wenpkpk</cc>
    
    <cc>wenson_hsieh</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1050431</commentid>
    <comment_count>0</comment_count>
    <who name="Daniel">danielo</who>
    <bug_when>2014-11-21 05:08:37 -0800</bug_when>
    <thetext>Crashed: WebThread
EXC_BAD_ACCESS KERN_INVALID_ADDRESS at 0xf000000c
See the stack below.

This crash existed since 2013, but it increased a lot since iOS 8 release.
40% of the time it happens on iPhone 5s.

Stack:

Thread : Crashed: WebThread (com.apple.root.default-qos.overcommit)
0  libobjc.A.dylib                0x3a507f46 objc_msgSend + 5
1  CoreFoundation                 0x2cc2ee5d CFRelease + 600
2  QuartzCore                     0x2fc0ba65 CA::release_objects(X::List&lt;void const*&gt;*) + 16
3  QuartzCore                     0x2fc10dc7 -[CAAnimation dealloc] + 54
4  libobjc.A.dylib                0x3a515d5f objc_object::sidetable_release(bool) + 166
5  libobjc.A.dylib                0x3a5161a9 (anonymous namespace)::AutoreleasePoolPage::pop(void*) + 404
6  CoreFoundation                 0x2cc39f99 _CFAutoreleasePoolPop + 16
7  Foundation                     0x2d9780ff -[NSAutoreleasePool drain] + 122
8  CFNetwork                      0x2c84f9d1 AutoAutoreleasePool::~AutoAutoreleasePool() + 24
9  CFNetwork                      0x2c833a43 ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 166
10 CFNetwork                      0x2c78834d RunloopBlockContext::_invoke_block(void const*, void*) + 60
11 CoreFoundation                 0x2cc39c7d CFArrayApplyFunction + 36
12 CFNetwork                      0x2c788207 RunloopBlockContext::perform() + 182
13 CFNetwork                      0x2c7880cd MultiplexerSource::perform() + 216
14 CFNetwork                      0x2c787f61 MultiplexerSource::_perform(void*) + 48
15 CoreFoundation                 0x2ccee377 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
16 CoreFoundation                 0x2cced787 __CFRunLoopDoSources0 + 218
17 CoreFoundation                 0x2ccebded __CFRunLoopRun + 772
18 CoreFoundation                 0x2cc3a211 CFRunLoopRunSpecific + 476
19 CoreFoundation                 0x2cc3a023 CFRunLoopRunInMode + 106
20 WebCore                        0x38061ec3 RunWebThread(void*) + 418
21 libsystem_pthread.dylib        0x3abbee93 _pthread_body + 138
22 libsystem_pthread.dylib        0x3abbee07 _pthread_start + 118

Some related info:
http://stackoverflow.com/questions/26656342/uiwebview-random-crash-at-uiviewanimationstate-release-message-sent-to-deallo
Sample project:
https://github.com/crarau/WebViewCrash

Sites that can crash with this:
http://www.amazon.com
http://www.yandex.ru
http://m.vk.com</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1050441</commentid>
    <comment_count>1</comment_count>
    <who name="Daniel">danielo</who>
    <bug_when>2014-11-21 05:48:55 -0800</bug_when>
    <thetext>The same thing: 
https://groups.google.com/forum/#!topic/ima-sdk/u9yZWccWe3E</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1050452</commentid>
    <comment_count>2</comment_count>
    <who name="Daniel">danielo</who>
    <bug_when>2014-11-21 07:31:52 -0800</bug_when>
    <thetext>This is one of the possible stacks of where this CAAnimation is created.
It points to that it&apos;s related to HTML audio element, and MPVolumeView / MPVolumeSlider, which has an animation on it.

 frame #1: 0x000000018bb4498c QuartzCore`+[CAPropertyAnimation animationWithKeyPath:] + 48
16:25     frame #2: 0x000000018c4ab1c8 UIKit`-[UIViewAnimationState animationForLayer:forKey:forView:] + 628
16:25     frame #3: 0x000000018c221724 UIKit`-[UIViewAnimationState actionForLayer:forKey:forView:] + 44
16:25     frame #4: 0x000000018c1e5f44 UIKit`-[UIView(CALayerDelegate) actionForLayer:forKey:] + 140
16:25     frame #5: 0x000000018bb40e88 QuartzCore`-[CALayer actionForKey:] + 104
16:25     frame #6: 0x000000018bb3686c QuartzCore`actionForKey(CALayer*, CA::Transaction*, NSString*) + 100
16:25     frame #7: 0x000000018bb366d8 QuartzCore`CA::Layer::begin_change(CA::Transaction*, unsigned int, objc_object*&amp;) + 176
16:25     frame #8: 0x000000018bb396a0 QuartzCore`CA::Layer::setter(unsigned int, _CAValueType, void const*) + 156
16:25     frame #9: 0x000000018bb40e14 QuartzCore`-[CALayer setOpacity:] + 48
16:25     frame #10: 0x000000018c1e5a5c UIKit`-[UIView(Rendering) setAlpha:] + 104
16:26     frame #11: 0x0000000189c101dc MediaPlayer`-[MPVolumeSlider _layoutForAvailableRoutes] + 1448
16:26     frame #12: 0x0000000189c0eb68 MediaPlayer`-[MPVolumeSlider layoutSubviews] + 80
16:26     frame #13: 0x000000018c1e9648 UIKit`-[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 572
16:26     frame #14: 0x000000018bb41994 QuartzCore`-[CALayer layoutSublayers] + 168
16:26     frame #15: 0x000000018bb3c564 QuartzCore`CA::Layer::layout_if_needed(CA::Transaction*) + 320
16:26     frame #16: 0x000000018c1fda2c UIKit`-[UIView(Hierarchy) layoutBelowIfNeeded] + 160
16:26     frame #17: 0x000000018c203318 UIKit`-[UISlider setValue:animated:] + 196
16:26     frame #18: 0x0000000189c0f358 MediaPlayer`-[MPVolumeSlider volumeController:volumeValueDidChange:] + 92
16:26     frame #19: 0x0000000189c81fc4 MediaPlayer`-[MPVolumeController updateVolumeValue] + 260
16:26     frame #20: 0x0000000189c0ecb0 MediaPlayer`-[MPVolumeSlider didMoveToSuperview] + 144
16:26     frame #21: 0x000000018c1e81dc UIKit`-[UIView(Hierarchy) _postMovedFromSuperview:] + 484
16:26     frame #22: 0x000000018c1f3cbc UIKit`-[UIView(Internal) _addSubview:positioned:relativeTo:] + 1764
16:26     frame #23: 0x0000000189c11f54 MediaPlayer`-[MPVolumeView _createSubviews] + 264
16:26     frame #24: 0x0000000189c109d4 MediaPlayer`-[MPVolumeView _initWithStyle:] + 240
16:26     frame #25: 0x0000000189c10a60 MediaPlayer`-[MPVolumeView initWithFrame:style:] + 88
16:26     frame #26: 0x0000000195e60684 WebCore`-[WebMediaSessionHelper initWithCallback:] + 132
16:26     frame #27: 0x0000000195e5fdb8 WebCore`WebCore::MediaSessionManageriOS::MediaSessionManageriOS() + 96
16:26     frame #28: 0x0000000195e5fd28 WebCore`WebCore::MediaSessionManager::sharedManager() + 56
16:26     frame #29: 0x0000000195e5e890 WebCore`WebCore::MediaSession::MediaSession(WebCore::MediaSessionClient&amp;) + 44
16:26     frame #30: 0x00000001959a4604 WebCore`WebCore::HTMLMediaSession::create(WebCore::MediaSessionClient&amp;) + 36
16:26     frame #31: 0x000000019598cfb0 WebCore`WebCore::HTMLMediaElement::HTMLMediaElement(WebCore::QualifiedName const&amp;, WebCore::Document&amp;, bool) + 1100
16:26     frame #32: 0x0000000195963fe0 WebCore`WebCore::HTMLAudioElement::create(WebCore::QualifiedName const&amp;, WebCore::Document&amp;, bool) + 64
16:26     frame #33: 0x0000000195978ecc WebCore`WebCore::audioConstructor(WebCore::QualifiedName const&amp;, WebCore::Document&amp;, WebCore::HTMLFormElement*, bool) + 92
16:26     frame #34: 0x0000000195978c8c WebCore`WebCore::HTMLElementFactory::createElement(WebCore::QualifiedName const&amp;, WebCore::Document&amp;, WebCore::HTMLFormElement*, bool) + 336
16:26     frame #35: 0x000000019545b51c WebCore`WebCore::HTMLDocument::createElement(WTF::AtomicString const&amp;, int&amp;) + 112
16:26     frame #36: 0x000000019545b418 WebCore`WebCore::jsDocumentPrototypeFunctionCreateElement(JSC::ExecState*) + 364
16:26     frame #37: 0x0000000189226620 JavaScriptCore`llint_entry + 26144
16:26     frame #38: 0x000000018922604c JavaScriptCore`llint_entry + 24652
16:26     frame #39: 0x000000018922604c JavaScriptCore`llint_entry + 24652
16:26     frame #40: 0x000000018922622c JavaScriptCore`llint_entry + 25132
16:27     frame #41: 0x000000018922622c JavaScriptCore`llint_entry + 25132
16:27     frame #42: 0x000000018922604c JavaScriptCore`llint_entry + 24652
16:27     frame #43: 0x000000018921fde4 JavaScriptCore`callToJavaScript + 308
16:27     frame #44: 0x000000018918e448 JavaScriptCore`JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) + 48
16:27     frame #45: 0x0000000188ef9548 JavaScriptCore`JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;) + 420
16:27     frame #46: 0x0000000189025498 JavaScriptCore`JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&amp;, JSC::JSValue, JSC::ArgList const&amp;, JSC::JSValue*) + 92
16:27     frame #47: 0x0000000195452a4c WebCore`WebCore::ScheduledAction::executeFunctionInContext(JSC::JSGlobalObject*, JSC::JSValue, WebCore::ScriptExecutionContext*) + 492
16:27     frame #48: 0x00000001954525e0 WebCore`WebCore::ScheduledAction::execute(WebCore::Document*) + 144
16:27     frame #49: 0x0000000195451d84 WebCore`WebCore::DOMTimer::fired() + 508
16:27     frame #50: 0x00000001954517ec WebCore`WebCore::ThreadTimers::sharedTimerFiredInternal() + 148
16:27     frame #51: 0x0000000195451730 WebCore`WebCore::timerFired(__CFRunLoopTimer*, void*) + 36
16:27     frame #52: 0x00000001879f28d8 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 28
16:27     frame #53: 0x00000001879f2588 CoreFoundation`__CFRunLoopDoTimer + 888
16:27     frame #54: 0x00000001879effd4 CoreFoundation`__CFRunLoopRun + 1372
16:27     frame #55: 0x000000018791d0a4 CoreFoundation`CFRunLoopRunSpecific + 396
16:27     frame #56: 0x00000001954d8858 WebCore`RunWebThread(void*) + 468
16:27     frame #57: 0x000000019896be80 libsystem_pthread.dylib`_pthread_body + 164
16:27     frame #58: 0x000000019896bddc libsystem_pthread.dylib`_pthread_start + 160</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1050461</commentid>
    <comment_count>3</comment_count>
    <who name="Daniel">danielo</who>
    <bug_when>2014-11-21 08:01:45 -0800</bug_when>
    <thetext>Moved it to &quot;Platform&quot; category. I think this happens, because iOS-specific WebCore classes (like MediaSessionManageriOS) might be calling UIKit methods from the WebThread, which is not a safe thing to do. In the stack above MediaSessionManageriOS is creating MPVolumeView from the WebThread, which eventually creates some UIView-s.

Related code line:
https://github.com/WebKit/webkit/blob/master/Source/WebCore/platform/audio/ios/MediaSessionManagerIOS.mm#L239</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1050814</commentid>
    <comment_count>4</comment_count>
    <who name="Daniel">danielo</who>
    <bug_when>2014-11-24 00:36:00 -0800</bug_when>
    <thetext>When fixing this it would be nice to think about how to provide more information in the crash. This is a multithreading issue, and it&apos;s very hard to reproduce. Seeing &quot;CAAnimation dealloc&quot; doesn&apos;t give a clue. I expect that MediaSessionManageriOS is not the only WebThread UIKit offender, so it would be good to prepare to this happening again.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1050946</commentid>
    <comment_count>5</comment_count>
    <who name="Eric Carlson">eric.carlson</who>
    <bug_when>2014-11-24 20:42:09 -0800</bug_when>
    <thetext>

*** This bug has been marked as a duplicate of bug 138971 ***</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1052730</commentid>
    <comment_count>6</comment_count>
    <who name="Andrei Palchys">andrei_palchys</who>
    <bug_when>2014-12-05 07:55:15 -0800</bug_when>
    <thetext>(In reply to comment #0)
&gt; Crashed: WebThread
&gt; EXC_BAD_ACCESS KERN_INVALID_ADDRESS at 0xf000000c
&gt; See the stack below.
&gt; 
&gt; This crash existed since 2013, but it increased a lot since iOS 8 release.
&gt; 40% of the time it happens on iPhone 5s.
&gt; 
&gt; Stack:
&gt; 
&gt; Thread : Crashed: WebThread (com.apple.root.default-qos.overcommit)
&gt; 0  libobjc.A.dylib                0x3a507f46 objc_msgSend + 5
&gt; 1  CoreFoundation                 0x2cc2ee5d CFRelease + 600
&gt; 2  QuartzCore                     0x2fc0ba65
&gt; CA::release_objects(X::List&lt;void const*&gt;*) + 16
&gt; 3  QuartzCore                     0x2fc10dc7 -[CAAnimation dealloc] + 54
&gt; 4  libobjc.A.dylib                0x3a515d5f
&gt; objc_object::sidetable_release(bool) + 166
&gt; 5  libobjc.A.dylib                0x3a5161a9 (anonymous
&gt; namespace)::AutoreleasePoolPage::pop(void*) + 404
&gt; 6  CoreFoundation                 0x2cc39f99 _CFAutoreleasePoolPop + 16
&gt; 7  Foundation                     0x2d9780ff -[NSAutoreleasePool drain] + 122
&gt; 8  CFNetwork                      0x2c84f9d1
&gt; AutoAutoreleasePool::~AutoAutoreleasePool() + 24
&gt; 9  CFNetwork                      0x2c833a43
&gt; ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP
&gt; 16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 166
&gt; 10 CFNetwork                      0x2c78834d
&gt; RunloopBlockContext::_invoke_block(void const*, void*) + 60
&gt; 11 CoreFoundation                 0x2cc39c7d CFArrayApplyFunction + 36
&gt; 12 CFNetwork                      0x2c788207 RunloopBlockContext::perform()
&gt; + 182
&gt; 13 CFNetwork                      0x2c7880cd MultiplexerSource::perform() +
&gt; 216
&gt; 14 CFNetwork                      0x2c787f61
&gt; MultiplexerSource::_perform(void*) + 48
&gt; 15 CoreFoundation                 0x2ccee377
&gt; __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
&gt; 16 CoreFoundation                 0x2cced787 __CFRunLoopDoSources0 + 218
&gt; 17 CoreFoundation                 0x2ccebded __CFRunLoopRun + 772
&gt; 18 CoreFoundation                 0x2cc3a211 CFRunLoopRunSpecific + 476
&gt; 19 CoreFoundation                 0x2cc3a023 CFRunLoopRunInMode + 106
&gt; 20 WebCore                        0x38061ec3 RunWebThread(void*) + 418
&gt; 21 libsystem_pthread.dylib        0x3abbee93 _pthread_body + 138
&gt; 22 libsystem_pthread.dylib        0x3abbee07 _pthread_start + 118
&gt; 
&gt; Some related info:
&gt; http://stackoverflow.com/questions/26656342/uiwebview-random-crash-at-
&gt; uiviewanimationstate-release-message-sent-to-deallo
&gt; Sample project:
&gt; https://github.com/crarau/WebViewCrash
&gt; 
&gt; Sites that can crash with this:
&gt; http://www.amazon.com
&gt; http://www.yandex.ru
&gt; http://m.vk.com

We see this crash very often in our UIWebView-based application (Cordova). I noticed if we reduce size of JS file that we load on the startup, it almost disappears but still exist.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1052747</commentid>
    <comment_count>7</comment_count>
    <who name="Eric Carlson">eric.carlson</who>
    <bug_when>2014-12-05 09:52:01 -0800</bug_when>
    <thetext>&gt; This crash existed since 2013, but it increased a lot since iOS 8 release.
&gt; 40% of the time it happens on iPhone 5s.

Reopened because the changes in bug 138971 are to code that was new to iOS 8 (see bug 130855).</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1052749</commentid>
    <comment_count>8</comment_count>
    <who name="Eric Carlson">eric.carlson</who>
    <bug_when>2014-12-05 09:52:35 -0800</bug_when>
    <thetext>Reopened</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1127088</commentid>
    <comment_count>9</comment_count>
    <who name="chenwenhong">wenpkpk</who>
    <bug_when>2015-09-18 01:43:23 -0700</bug_when>
    <thetext>Hi, friends.
This bug occurred since ios8. Today i fixed this bug. 

@interface H5WebKitBugsManager : NSObject

+ (void)fixAllBugs;

@end


#import &quot;H5WebKitBugsManager.h&quot;
#import &lt;objc/runtime.h&gt;

void H5Swizzle(Class c, SEL orig, SEL new)
{
    Method origMethod = class_getInstanceMethod(c, orig);
    Method newMethod = class_getInstanceMethod(c, new);
    if(class_addMethod(c, orig, method_getImplementation(newMethod), method_getTypeEncoding(newMethod))) {
        class_replaceMethod(c, new, method_getImplementation(origMethod), method_getTypeEncoding(origMethod));
    } else {
        method_exchangeImplementations(origMethod, newMethod);
    }
}

@implementation H5WebKitBugsManager

+ (void)fixAllBugs
{
    [self fixBug_MediaPlayerVolumeView];
}

+ (void)fixBug_MediaPlayerVolumeView
{
    CGFloat systemVersion = [UIDevice currentDevice].systemVersion.floatValue;
    
    if (systemVersion &lt; 8.0f || systemVersion &gt; 9.0) {
	// 8.0以下没有VolumeView，9.0尚未测试是否由此问题，条件待修改
        return;
    }
    
    Class cls = NSClassFromString(@&quot;WebMediaSessionHelper&quot;);
    NSString *allocateVolumeView = @&quot;allocateVolumeView&quot;;
    SEL orig = NSSelectorFromString(allocateVolumeView);
    SEL new = @selector(H5WKBMAllocateVolumeView);
    Method newMethod = class_getInstanceMethod(self, new);
    
    if(class_addMethod(cls, new, method_getImplementation(newMethod), method_getTypeEncoding(newMethod))) {
        H5Swizzle(cls, orig, new);
    }
}

- (void)H5WKBMAllocateVolumeView
{
    // WebKit&apos;s MediaSessionManageriOS is a singleton，in MediaSessionManageriOS.m. svn version181,859.
    static dispatch_once_t onceToken;
    dispatch_once(&amp;onceToken, ^{
        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ // must be dispatch in background thread
            [self H5WKBMAllocateVolumeView];
        });
    });
}

@end</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1127089</commentid>
    <comment_count>10</comment_count>
    <who name="chenwenhong">wenpkpk</who>
    <bug_when>2015-09-18 01:53:25 -0700</bug_when>
    <thetext>tt</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1127122</commentid>
    <comment_count>11</comment_count>
    <who name="Radar WebKit Bug Importer">webkit-bug-importer</who>
    <bug_when>2015-09-18 09:00:06 -0700</bug_when>
    <thetext>&lt;rdar://problem/22758408&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1133236</commentid>
    <comment_count>12</comment_count>
    <who name="Wenson Hsieh">wenson_hsieh</who>
    <bug_when>2015-10-14 13:06:32 -0700</bug_when>
    <thetext>Has anyone observed this crash on iOS9? If so, could you attach a crash log and some information about which app(s) this reproduces on?

We think that this might be fixed by http://trac.webkit.org/changeset/182029. Using the websites listed (amazon, m.vk and yandex) as well as the sample app at https://github.com/crarau/WebViewCrash, we haven&apos;t been able to reproduce the crash.

Thanks!</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1160045</commentid>
    <comment_count>13</comment_count>
    <who name="seb">sydneyitguy</who>
    <bug_when>2016-01-28 22:50:58 -0800</bug_when>
    <thetext>Found this crash on iOS 9.2.1

Crashed: WebThread
EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x0000000000000010

Thread : Crashed: WebThread
0  libobjc.A.dylib                0x18298dbd0 objc_msgSend + 16
1  UIKit                          0x18847cc6c -[UIWebView webView:resource:canAuthenticateAgainstProtectionSpace:forDataSource:] + 92
2  WebKitLegacy                   0x187d3991c &lt;redacted&gt; + 76
3  WebKitLegacy                   0x187d1dfd0 &lt;redacted&gt; + 184
4  WebCore                        0x186e81004 &lt;redacted&gt; + 72
5  WebCore                        0x1879037ac &lt;redacted&gt; + 120
6  WebCore                        0x187a9f500 &lt;redacted&gt; + 64
7  CFNetwork                      0x1838e9bf8 ___ZN27URLConnectionClient_Classic51_delegate_willSendRequestForAuthenticationChallengeEP19_CFURLAuthChallenge_block_invoke + 372
8  CFNetwork                      0x1839d0e7c ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 108
9  libdispatch.dylib              0x182d615f0 _dispatch_client_callout + 16
10 libdispatch.dylib              0x182d6a92c _dispatch_block_invoke + 540
11 CFNetwork                      0x1838cfa88 RunloopBlockContext::_invoke_block(void const*, void*) + 36
12 CoreFoundation                 0x1831f10ac CFArrayApplyFunction + 68
13 CFNetwork                      0x1838cf96c RunloopBlockContext::perform() + 136
14 CFNetwork                      0x1838cf82c MultiplexerSource::perform() + 312
15 CFNetwork                      0x1838cf658 MultiplexerSource::_perform(void*) + 68
16 CoreFoundation                 0x1832c4efc __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
17 CoreFoundation                 0x1832c4990 __CFRunLoopDoSources0 + 540
18 CoreFoundation                 0x1832c2690 __CFRunLoopRun + 724
19 CoreFoundation                 0x1831f1680 CFRunLoopRunSpecific + 384
20 WebCore                        0x186da1998 &lt;redacted&gt; + 456
21 libsystem_pthread.dylib        0x182f77b28 &lt;redacted&gt; + 156
22 libsystem_pthread.dylib        0x182f77a8c _pthread_start + 154
23 libsystem_pthread.dylib        0x182f75028 thread_start + 4</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1160210</commentid>
    <comment_count>14</comment_count>
    <who name="Alexey Proskuryakov">ap</who>
    <bug_when>2016-01-29 12:01:35 -0800</bug_when>
    <thetext>Could you please file a separate bug for that? This doesn&apos;t seem related.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>