156984 2016-04-25 09:31:00 -0700 REGRESSION(r199964): Crashes with guard malloc 2016-04-26 01:24:06 -0700 1 1 1 Unclassified WebKit Layout and Rendering WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 koivisto webkit-unassigned commit-queue ddkilzer esprehn+autocc glenn kling kondapallykalyan ryanhaddad simon.fraser webkit-bug-importer oldest_to_newest 1186956 0 koivisto 2016-04-25 09:31:00 -0700 Accessing deleted RenderStyle. CRASHING TEST: css1/pseudo/firstline.html Global Trace Buffer (reverse chronological seconds): 3.899656 CFNetwork 0x00007fff86a88553 TCP Conn 0x1836f6e00 event 1. err: 0 3.918368 CFNetwork 0x00007fff869f8f4b TCP Conn 0x1836f6e00 started 5.136279 CFNetwork 0x00007fff86b86ed7 Explicitly setting CF cookie storage singleton 5.138031 CFNetwork 0x00007fff86bbd8ad Explicitly setting cookie storage singleton Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 com.apple.WebCore 0x000000010428a251 WebCore::RenderBlock::minLineHeightForReplacedRenderer(bool, WebCore::LayoutUnit) const + 65 1 com.apple.WebCore 0x000000010364669c WebCore::LineWidth::updateAvailableWidth(WebCore::LayoutUnit) + 60 2 com.apple.WebCore 0x000000010415deff WebCore::LineBreaker::nextLineBreak(WebCore::BidiResolverWithIsolate<WebCore::InlineIterator, WebCore::BidiRun, WebCore::BidiIsolatedRun>&, WebCore::LineInfo&, WebCore::LineLayoutState&, WebCore::RenderTextInfo&, WebCore::FloatingObject*, unsigned int, WTF::Vector<WebCore::WordMeasurement, 64ul, WTF::CrashOnOverflow, 16ul>&) + 207 3 com.apple.WebCore 0x00000001042a674e WebCore::RenderBlockFlow::layoutRunsAndFloatsInRange(WebCore::LineLayoutState&, WebCore::BidiResolverWithIsolate<WebCore::InlineIterator, WebCore::BidiRun, WebCore::BidiIsolatedRun>&, WebCore::InlineIterator const&, WebCore::BidiStatus const&, unsigned int) + 862 4 com.apple.WebCore 0x00000001042a4cc0 WebCore::RenderBlockFlow::layoutRunsAndFloats(WebCore::LineLayoutState&, bool) + 1200 5 com.apple.WebCore 0x00000001042a9485 WebCore::RenderBlockFlow::layoutLineBoxes(bool, WebCore::LayoutUnit&, WebCore::LayoutUnit&) + 1845 6 com.apple.WebCore 0x0000000104294c12 WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) + 946 7 com.apple.WebCore 0x00000001035e2346 WebCore::RenderBlock::layout() + 54 8 com.apple.WebCore 0x00000001042969d3 WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&) + 883 9 com.apple.WebCore 0x00000001042958ec WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&) + 508 10 com.apple.WebCore 0x0000000104294bfa WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) + 922 11 com.apple.WebCore 0x00000001035e2346 WebCore::RenderBlock::layout() + 54 12 com.apple.WebCore 0x00000001042969d3 WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&) + 883 13 com.apple.WebCore 0x00000001042958ec WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&) + 508 14 com.apple.WebCore 0x0000000104294bfa WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) + 922 15 com.apple.WebCore 0x00000001035e2346 WebCore::RenderBlock::layout() + 54 16 com.apple.WebCore 0x00000001042969d3 WebCore::RenderBlockFlow::layoutBlockChild(WebCore::RenderBox&, WebCore::RenderBlockFlow::MarginInfo&, WebCore::LayoutUnit&, WebCore::LayoutUnit&) + 883 17 com.apple.WebCore 0x00000001042958ec WebCore::RenderBlockFlow::layoutBlockChildren(bool, WebCore::LayoutUnit&) + 508 18 com.apple.WebCore 0x0000000104294bfa WebCore::RenderBlockFlow::layoutBlock(bool, WebCore::LayoutUnit) + 922 19 com.apple.WebCore 0x00000001035e2346 WebCore::RenderBlock::layout() + 54 20 com.apple.WebCore 0x00000001035e21bd WebCore::RenderView::layout() + 765 21 com.apple.WebCore 0x00000001035df781 WebCore::FrameView::layout(bool) + 2993 22 com.apple.WebCore 0x00000001035de49a WebCore::Document::implicitClose() + 874 23 com.apple.WebCore 0x00000001035ddcd3 WebCore::FrameLoader::checkCompleted() + 275 24 com.apple.WebCore 0x00000001035dc9cb WebCore::FrameLoader::finishedParsing() + 123 25 com.apple.WebCore 0x00000001035db7a6 WebCore::Document::finishedParsing() + 390 26 com.apple.WebCore 0x00000001035b3f72 WebCore::HTMLDocumentParser::prepareToStopParsing() + 162 27 com.apple.WebCore 0x00000001035b2d2a WebCore::DocumentWriter::end() + 58 28 com.apple.WebCore 0x00000001035a490c WebCore::DocumentLoader::finishedLoading(double) + 268 29 com.apple.WebCore 0x000000010363a159 WebCore::CachedResource::checkNotify() + 153 30 com.apple.WebCore 0x00000001038f79c3 WebCore::CachedRawResource::finishLoading(WebCore::SharedBuffer*) + 227 31 com.apple.WebCore 0x0000000103639feb WebCore::SubresourceLoader::didFinishLoading(double) + 1163 32 com.apple.WebKit 0x00000001020a1af8 WebKit::WebResourceLoader::didReceiveWebResourceLoaderMessage(IPC::Connection&, IPC::MessageDecoder&) + 460 33 com.apple.WebKit 0x0000000101ef382d IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::MessageDecoder, std::__1::default_delete<IPC::MessageDecoder> >) + 127 34 com.apple.WebKit 0x0000000101ef6196 IPC::Connection::dispatchOneMessage() + 126 35 com.apple.JavaScriptCore 0x0000000103285535 WTF::RunLoop::performWork() + 437 36 com.apple.JavaScriptCore 0x00000001032858e2 WTF::RunLoop::performWork(void*) + 34 37 com.apple.CoreFoundation 0x00007fff894d7881 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 38 com.apple.CoreFoundation 0x00007fff894b6fbc __CFRunLoopDoSources0 + 556 39 com.apple.CoreFoundation 0x00007fff894b64df __CFRunLoopRun + 927 40 com.apple.CoreFoundation 0x00007fff894b5ed8 CFRunLoopRunSpecific + 296 41 com.apple.HIToolbox 0x00007fff8f6e1935 RunCurrentEventLoopInMode + 235 42 com.apple.HIToolbox 0x00007fff8f6e176f ReceiveNextEventCommon + 432 43 com.apple.HIToolbox 0x00007fff8f6e15af _BlockUntilNextEventMatchingListInModeWithFilter + 71 44 com.apple.AppKit 0x00007fff973b9efa _DPSNextEvent + 1067 45 com.apple.AppKit 0x00007fff973b932a -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454 46 com.apple.AppKit 0x00007fff973ade84 -[NSApplication run] + 682 47 com.apple.AppKit 0x00007fff9737746c NSApplicationMain + 1176 48 libxpc.dylib 0x00007fff90afa194 _xpc_objc_main + 795 49 libxpc.dylib 0x00007fff90af8bbe xpc_main + 494 50 com.apple.WebKit.WebContent 0x0000000101e377df 0x101e36000 + 6111 51 libdyld.dylib 0x00007fff82be85ad start + 1 1186957 1 277255 koivisto 2016-04-25 09:35:23 -0700 Created attachment 277255 patch 1186960 2 277255 kling 2016-04-25 09:44:11 -0700 Comment on attachment 277255 patch r=me 1186969 3 koivisto 2016-04-25 10:03:09 -0700 https://trac.webkit.org/r200031 1187304 4 webkit-bug-importer 2016-04-26 01:24:06 -0700 <rdar://problem/25926869> 277255 2016-04-25 09:35:23 -0700 2016-04-25 09:44:11 -0700 patch cached-first-line-style-crash.patch text/plain 5149 koivisto SW5kZXg6IFNvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvV2Vi Q29yZS9DaGFuZ2VMb2cJKHJldmlzaW9uIDIwMDAzMCkKKysrIFNvdXJjZS9XZWJDb3JlL0NoYW5n ZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDIwIEBACisyMDE2LTA0LTI1ICBBbnR0aSBL b2l2aXN0byAgPGFudHRpQGFwcGxlLmNvbT4KKworICAgICAgICBSRUdSRVNTSU9OKHIxNTY4NDYp 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