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<base href="https://bugs.webkit.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - WebContent crash due to RELEASE_ASSERT(!m_inLoadPendingImages) in StyleResolver::~StyleResolver()"
href="https://bugs.webkit.org/show_bug.cgi?id=159307">159307</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>WebContent crash due to RELEASE_ASSERT(!m_inLoadPendingImages) in StyleResolver::~StyleResolver()
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>WebKit Nightly Build
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>OS</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>Normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P2
</td>
</tr>
<tr>
<th>Component</th>
<td>CSS
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>koivisto@iki.fi
</td>
</tr></table>
<p>
<div>
<pre>Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed ↩:
0 WebCore 0x0000000188f8b830 WebCore::StyleResolver::~StyleResolver() + 364 (StyleResolver.cpp:309)
1 WebCore 0x0000000188f8b648 WebCore::Document::clearStyleResolver() + 32 (memory:2525)
2 WebCore 0x0000000188f8b648 WebCore::Document::clearStyleResolver() + 32 (memory:2525)
3 WebCore 0x0000000189179ac8 WebCore::AuthorStyleSheets::updateActiveStyleSheets(WebCore::AuthorStyleSheets::UpdateFlag) + 484 (AuthorStyleSheets.cpp:317)
4 WebCore 0x0000000188f8a574 WebCore::Document::styleResolverChanged(WebCore::StyleResolverUpdateFlag) + 116 (Document.cpp:3650)
5 WebKit 0x000000018d9949e4 WebKit::WebPage::viewportConfigurationChanged() + 196 (WebPageIOS.mm:2822)
6 WebKit 0x000000018d98a080 WebKit::WebPage::mainFrameDidLayout() + 156 (WebPage.cpp:3750)
7 WebCore 0x0000000188fd0598 WebCore::FrameView::performPostLayoutTasks() + 176 (FrameView.cpp:3183)
8 WebCore 0x0000000188fcc8e8 WebCore::FrameView::layout(bool) + 3544 (FrameView.cpp:1487)
9 WebCore 0x0000000188fc9528 WebCore::Document::implicitClose() + 788 (Document.cpp:2776)
10 WebCore 0x0000000188fc8928 WebCore::FrameLoader::checkCompleted() + 352 (FrameLoader.cpp:867)
11 WebCore 0x0000000188ffad54 WebCore::CachedResourceLoader::loadDone(WebCore::CachedResource*, bool) + 612 (CachedResourceLoader.cpp:991)
12 WebCore 0x0000000188ffcdc8 WebCore::SubresourceLoader::didCancel(WebCore::ResourceError const&) + 96 (SubresourceLoader.cpp:508)
13 WebCore 0x0000000188ffc7c8 WebCore::ResourceLoader::cancel(WebCore::ResourceError const&) + 484 (ResourceLoader.cpp:590)
14 WebCore 0x0000000188ffc558 WebCore::ResourceLoader::cancel() + 84 (ResourceLoader.cpp:546)
15 WebCore 0x0000000189cf039c WebCore::SubresourceLoader::willSendRequestInternal(WebCore::ResourceRequest&, WebCore::ResourceResponse const&) + 704 (SubresourceLoader.cpp:211)
16 WebCore 0x0000000188f6b990 WebCore::ResourceLoader::init(WebCore::ResourceRequest const&) + 288 (ResourceLoader.cpp:155)
17 WebCore 0x0000000188f6b724 WebCore::SubresourceLoader::init(WebCore::ResourceRequest const&) + 32 (SubresourceLoader.cpp:144)
18 WebCore 0x0000000188f6b178 WebCore::SubresourceLoader::create(WebCore::Frame*, WebCore::CachedResource*, WebCore::ResourceRequest const&, WebCore::ResourceLoaderOptions const&) + 188 (SubresourceLoader.cpp:112)
19 WebKit 0x000000018d979014 WebKit::WebLoaderStrategy::loadResource(WebCore::Frame*, WebCore::CachedResource*, WebCore::ResourceRequest const&, WebCore::ResourceLoaderOptions const&) + 52 (WebLoaderStrategy.cpp:76)
20 WebCore 0x00000001891acd20 WebCore::CachedResource::load(WebCore::CachedResourceLoader&, WebCore::ResourceLoaderOptions const&) + 1184 (CachedResource.cpp:283)
21 WebCore 0x0000000188f68774 WebCore::CachedResourceLoader::requestResource(WebCore::CachedResource::Type, WebCore::CachedResourceRequest&) + 2160 (CachedResourceLoader.cpp:631)
22 WebCore 0x0000000189008750 WebCore::CachedResourceLoader::requestImage(WebCore::CachedResourceRequest&) + 260 (CachedResourceLoader.cpp:190)
23 WebCore 0x0000000189261bd0 WebCore::CSSImageValue::cachedImage(WebCore::CachedResourceLoader&, WebCore::ResourceLoaderOptions const&) + 452 (CSSImageValue.cpp:88)
24 WebCore 0x0000000189ce27a4 WebCore::StyleResolver::loadPendingImage(WebCore::StylePendingImage const&, WebCore::ResourceLoaderOptions const&) + 76 (StyleResolver.cpp:2083)
25 WebCore 0x0000000188f54654 WebCore::StyleResolver::loadPendingImages() + 1172 (StyleResolver.cpp:2105)
26 WebCore 0x0000000189cdcf78 WebCore::StyleResolver::applyMatchedProperties(WebCore::StyleResolver::MatchResult const&, WebCore::Element const&, WebCore::StyleResolver::ShouldUseMatchedPropertiesCache) + 2076 (StyleResolver.cpp:2243)
27 WebCore 0x0000000189cdeb10 WebCore::StyleResolver::pseudoStyleForElement(WebCore::Element const&, WebCore::PseudoStyleRequest const&, WebCore::RenderStyle const&) + 596 (StyleResolver.cpp:596)
28 WebCore 0x0000000189af9138 WebCore::RenderElement::getCachedPseudoStyle(WebCore::PseudoId, WebCore::RenderStyle const*) const + 128 (RenderElement.cpp:1543)
29 WebCore 0x0000000189bc68ac WebCore::RenderTreeUpdater::updateBeforeOrAfterPseudoElement(WebCore::Element&, WebCore::PseudoId) + 320 (RenderTreeUpdater.cpp:459)
30 WebCore 0x0000000189bc6ab4 WebCore::RenderTreeUpdater::popParent() + 64 (RenderTreeUpdater.cpp:192)
31 WebCore 0x0000000189bc58dc WebCore::RenderTreeUpdater::updateRenderTree(WebCore::ContainerNode&) + 736 (RenderTreeUpdater.cpp:205)
32 WebCore 0x0000000189bc55a4 WebCore::RenderTreeUpdater::commit(std::__1::unique_ptr<WebCore::Style::Update, std::__1::default_delete<WebCore::Style::Update> >) + 492 (RenderTreeUpdater.cpp:99)
33 WebCore 0x00000001892fa5b8 WebCore::Document::recalcStyle(WebCore::Style::Change) + 752 (Document.cpp:1891)
34 WebCore 0x0000000188fc7b08 WebCore::Document::finishedParsing() + 340 (Document.cpp:1937)
35 WebCore 0x0000000188fc5484 WebCore::HTMLDocumentParser::prepareToStopParsing() + 172 (HTMLDocumentParser.cpp:405)
36 WebCore 0x0000000188fc49c0 WebCore::DocumentWriter::end() + 92 (DocumentWriter.cpp:257)
37 WebCore 0x0000000188fbc180 WebCore::DocumentLoader::finishedLoading(double) + 256 (DocumentLoader.cpp:436)
38 WebCore 0x0000000188ffa468 WebCore::CachedResource::checkNotify() + 448 (CachedResource.cpp:299)
39 WebCore 0x00000001891ab4d8 WebCore::CachedRawResource::finishLoading(WebCore::SharedBuffer*) + 224 (CachedRawResource.cpp:103)
40 WebCore 0x0000000188ffa148 WebCore::SubresourceLoader::didFinishLoading(double) + 988 (SubresourceLoader.cpp:429)
41 WebKit 0x000000018da1ff18 WebKit::WebResourceLoader::didFinishResourceLoad(double) + 216 (WebResourceLoader.cpp:159)
42 WebKit 0x000000018da20958 WebKit::WebResourceLoader::didReceiveWebResourceLoaderMessage(IPC::Connection&, IPC::MessageDecoder&) + 540 (HandleMessage.h:16)
43 WebKit 0x000000018d85981c IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::MessageDecoder, std::__1::default_delete<IPC::MessageDecoder> >) + 160 (Connection.cpp:899)
44 WebKit 0x000000018d85c1d4 IPC::Connection::dispatchOneMessage() + 204 (Connection.cpp:961)
45 JavaScriptCore 0x0000000188cad648 WTF::RunLoop::performWork() + 884 (functional:1817)
46 JavaScriptCore 0x0000000188cad844 WTF::RunLoop::performWork(void*) + 36 (RunLoopCF.cpp:38)
47 CoreFoundation 0x00000001845863f0 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24 (CFRunLoop.c:1943)
48 CoreFoundation 0x0000000184585d38 __CFRunLoopDoSources0 + 524 (CFRunLoop.c:1989)
49 CoreFoundation 0x0000000184583938 __CFRunLoopRun + 804 (CFRunLoop.c:2821)
50 CoreFoundation 0x00000001844b62e4 CFRunLoopRunSpecific + 292 (CFRunLoop.c:3103)
51 Foundation 0x0000000184f6093c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304 (NSRunLoop.m:367)
52 Foundation 0x0000000184fb5214 -[NSRunLoop(NSRunLoop) run] + 88 (NSRunLoop.m:389)
53 libxpc.dylib 0x000000018426bf28 _xpc_objc_main + 660 (main.m:186)
54 libxpc.dylib 0x000000018426dc20 xpc_main + 200 (init.c:1438)
55 com.apple.WebKit.WebContent 0x00000001000335e4 main + 376 (XPCServiceMain.mm:114)
56 libdyld.dylib 0x0000000184058600 start + 4</pre>
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