Created attachment 80017 [details] Leaks log Running 'run-webkit-tests --debug --leaks LayoutTests/fast/css' shows some leaks of CSSRuleDataList objects. On SnowLeopard, at r76568. Massaged leaks output attached. Sample stack is: | WebCore::JSNode::appendChild(JSC::ExecState*) | WebCore::Node::appendChild(WTF::PassRefPtr<WebCore::Node>, int&, bool) | WebCore::ContainerNode::appendChild(WTF::PassRefPtr<WebCore::Node>, int&, bool) | WebCore::notifyChildInserted(WebCore::Node*) | WebCore::HTMLStyleElement::insertedIntoDocument() | WebCore::StyleElement::insertedIntoDocument(WebCore::Document*, WebCore::Element*) | WebCore::StyleElement::process(WebCore::Element*) | WebCore::StyleElement::createSheet(WebCore::Element*, int, WTF::String const&) | WebCore::CSSStyleSheet::checkLoaded() | WebCore::HTMLStyleElement::sheetLoaded() | WebCore::StyleElement::sheetLoaded(WebCore::Document*) | WebCore::Document::removePendingSheet() | WebCore::Document::styleSelectorChanged(WebCore::StyleSelectorUpdateFlag) | WebCore::Document::recalcStyle(WebCore::Node::StyleChange) | WebCore::Element::recalcStyle(WebCore::Node::StyleChange) | WebCore::Document::styleSelector() | WebCore::Document::createStyleSelector() | WebCore::CSSStyleSelector::CSSStyleSelector(WebCore::Document*, WebCore::StyleSheetList*, WebCore::CSSStyleSheet*, WebCore::CSSStyleSheet*, WTF::Vector<WTF::RefPtr<WebCore::CSSStyleSheet>, 0ul> const*, bool, bool) | WebCore::CSSRuleSet::addRulesFromSheet(WebCore::CSSStyleSheet*, WebCore::MediaQueryEvaluator const&, WebCore::CSSStyleSelector*) | WebCore::CSSRuleSet::addStyleRule(WebCore::CSSStyleRule*) | WebCore::CSSRuleSet::addRule(WebCore::CSSStyleRule*, WebCore::CSSSelector*) | WebCore::CSSRuleSet::addToRuleSet(WTF::AtomicStringImpl*, WTF::HashMap<WTF::AtomicStringImpl*, WebCore::CSSRuleDataList*, WTF::PtrHash<WTF::AtomicStringImpl*>, WTF::HashTraits<WTF::AtomicStringImpl*>, WTF::HashTraits<WebCore::CSSRuleDataList*> >&, WebCore::CSSStyleRule*, WebCore::CSSSelector*) | WebCore::CSSRuleDataList::CSSRuleDataList(unsigned int, WebCore::CSSStyleRule*, WebCore::CSSSelector*) | WTF::fastMalloc(unsigned long)
<rdar://problem/8911607>
Created attachment 80021 [details] Patch
http://trac.webkit.org/changeset/76573