Bug#642750: epiphany-browser once again unusable on ia64

[Émeric MASCHINO]

Hi,

With the switch from WebKit 1.8.1 to 2.0.4, instability is back on
IA-64: Epiphany simply can't open any URL without crashing (cf. the
attached gdb output when trying to go to http://www.gnome.org).

     Émeric
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Starting program: /usr/bin/epiphany-browser 
warning: Could not load shared library symbols for linux-gate.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/ia64-linux-gnu/libthread_db.so.1".
[New Thread 0x200000000ade2f10 (LWP 2116)]
[New Thread 0x200000000ba02f10 (LWP 2117)]
[New Thread 0x20000000147fef10 (LWP 2120)]
[New Thread 0x2000000015f02f10 (LWP 2121)]
[New Thread 0x2000000016906f10 (LWP 2125)]
[Thread 0x2000000015f02f10 (LWP 2121) exited]
[New Thread 0x2000000015f02f10 (LWP 2127)]
[New Thread 0x200000002c2fef10 (LWP 2128)]
[New Thread 0x200000002cefef10 (LWP 2129)]
[New Thread 0x200000002d6fef10 (LWP 2130)]
[New Thread 0x200000002defef10 (LWP 2131)]
[New Thread 0x200000002e6fef10 (LWP 2132)]
[New Thread 0x200000002eefef10 (LWP 2133)]

Program received signal SIGSEGV, Segmentation fault.
0x2000000001223121 in WebCore::getCachedDOMStructure(WebCore::JSDOMGlobalObject*, JSC::ClassInfo const*) () from /usr/lib/libwebkitgtk-3.0.so.0
#0  0x2000000001223121 in WebCore::getCachedDOMStructure(WebCore::JSDOMGlobalObject*, JSC::ClassInfo const*) () from /usr/lib/libwebkitgtk-3.0.so.0
#1  0x200000000124fd80 in WebCore::toJS(JSC::ExecState*, WebCore::JSDOMGlobalObject*, WebCore::Document*) () from /usr/lib/libwebkitgtk-3.0.so.0
#2  0x20000000012c3470 in WebCore::createWrapper(JSC::ExecState*, WebCore::JSDOMGlobalObject*, WebCore::Node*) () from /usr/lib/libwebkitgtk-3.0.so.0
#3  0x2000000001238b10 in WebCore::JSDOMWindowBase::updateDocument() () from /usr/lib/libwebkitgtk-3.0.so.0
#4  0x2000000001315d70 in WebCore::ScriptController::initScript(WebCore::DOMWrapperWorld*) () from /usr/lib/libwebkitgtk-3.0.so.0
#5  0x2000000001316c50 in WebCore::ScriptController::evaluateInWorld(WebCore::ScriptSourceCode const&, WebCore::DOMWrapperWorld*) () from /usr/lib/libwebkitgtk-3.0.so.0
#6  0x2000000001317440 in WebCore::ScriptController::evaluate(WebCore::ScriptSourceCode const&) () from /usr/lib/libwebkitgtk-3.0.so.0
#7  0x200000000186c270 in WebCore::ScriptElement::executeScript(WebCore::ScriptSourceCode const&) () from /usr/lib/libwebkitgtk-3.0.so.0
#8  0x2000000001d3c440 in WebCore::HTMLScriptRunner::executePendingScriptAndDispatchEvent(WebCore::PendingScript&) () from /usr/lib/libwebkitgtk-3.0.so.0
#9  0x2000000001d3cf30 in WebCore::HTMLScriptRunner::executeParsingBlockingScript() () from /usr/lib/libwebkitgtk-3.0.so.0
#10 0x2000000001d3d870 in WebCore::HTMLScriptRunner::executeParsingBlockingScripts() () from /usr/lib/libwebkitgtk-3.0.so.0
#11 0x2000000001d3d8f0 in WebCore::HTMLScriptRunner::executeScriptsWaitingForStylesheets() () from /usr/lib/libwebkitgtk-3.0.so.0
#12 0x2000000001d05cf0 in WebCore::HTMLDocumentParser::executeScriptsWaitingForStylesheets() () from /usr/lib/libwebkitgtk-3.0.so.0
#13 0x20000000017340a0 in WebCore::Document::didRemoveAllPendingStylesheet() () from /usr/lib/libwebkitgtk-3.0.so.0
#14 0x20000000017749f0 in WebCore::DocumentStyleSheetCollection::removePendingSheet(WebCore::DocumentStyleSheetCollection::RemovePendingSheetNotificationType) () from /usr/lib/libwebkitgtk-3.0.so.0
#15 0x2000000001c08350 in WebCore::HTMLLinkElement::removePendingSheet(WebCore::HTMLLinkElement::RemovePendingSheetNotificationType) () from /usr/lib/libwebkitgtk-3.0.so.0
#16 0x2000000001c08430 in WebCore::HTMLLinkElement::sheetLoaded() () from /usr/lib/libwebkitgtk-3.0.so.0
#17 0x20000000016a2d20 in WebCore::StyleSheetContents::checkLoaded() () from /usr/lib/libwebkitgtk-3.0.so.0
#18 0x20000000016a2b00 in WebCore::StyleSheetContents::checkLoaded() () from /usr/lib/libwebkitgtk-3.0.so.0
#19 0x2000000001697f70 in WebCore::StyleRuleImport::setCSSStyleSheet(WTF::String const&, WebCore::KURL const&, WTF::String const&, WebCore::CachedCSSStyleSheet const*) () from /usr/lib/libwebkitgtk-3.0.so.0
#20 0x2000000001699ec0 in WebCore::StyleRuleImport::ImportedStyleSheetClient::setCSSStyleSheet(WTF::String const&, WebCore::KURL const&, WTF::String const&, WebCore::CachedCSSStyleSheet const*) () from /usr/lib/libwebkitgtk-3.0.so.0
#21 0x20000000020a2190 in WebCore::CachedCSSStyleSheet::checkNotify() () from /usr/lib/libwebkitgtk-3.0.so.0
#22 0x20000000020a19d0 in WebCore::CachedCSSStyleSheet::data(WTF::PassRefPtr<WebCore::ResourceBuffer>, bool) () from /usr/lib/libwebkitgtk-3.0.so.0
#23 0x20000000021f1d00 in WebCore::SubresourceLoader::didFinishLoading(double) () from /usr/lib/libwebkitgtk-3.0.so.0
#24 0x20000000021d4780 in WebCore::ResourceLoader::didFinishLoading(WebCore::ResourceHandle*, double) () from /usr/lib/libwebkitgtk-3.0.so.0
#25 0x200000000382e930 in WebCore::readCallback(_GObject*, _GAsyncResult*, void*) () from /usr/lib/libwebkitgtk-3.0.so.0
#26 0x2000000005b1f320 in async_ready_callback_wrapper () from /usr/lib/ia64-linux-gnu/libgio-2.0.so.0
#27 0x2000000005b74180 in complete_in_idle_cb () from /usr/lib/ia64-linux-gnu/libgio-2.0.so.0
#28 0x200000000605f740 in g_idle_dispatch () from /lib/ia64-linux-gnu/libglib-2.0.so.0
#29 0x2000000006067220 in g_main_context_dispatch () from /lib/ia64-linux-gnu/libglib-2.0.so.0
#30 0x2000000006067a40 in ?? () from /lib/ia64-linux-gnu/libglib-2.0.so.0
#31 0x2000000006067dd0 in g_main_context_iteration () from /lib/ia64-linux-gnu/libglib-2.0.so.0
#32 0x2000000005bc5e80 in g_application_run () from /usr/lib/ia64-linux-gnu/libgio-2.0.so.0
#33 0x4000000000040020 in main (argc=1, argv=0x60000fffffffb398) at ephy-main.c:483
A debugging session is active.

	Inferior 1 [process 2113] will be killed.

Quit anyway? (y or n)