[Webkit-unassigned] [Bug 35491] New: freezing in phtread_cond_wait after some clicks

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sun Feb 28 00:18:13 PST 2010 

https://bugs.webkit.org/show_bug.cgi?id=35491

           Summary: freezing in phtread_cond_wait after some clicks
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: adrian at suse.de


I observe a freezing webkit after a few clicks in web pages like facebook. This
happens since a longer time already always using the webkit as shipped by
openSUSE 64bit via Qt packages. I see this in arora but also with konquerors
webkit part.

Backtrace is attached, but I assume we would need some debugging code to find
the dead lock ? 
I am happy to debug this with some helping hand, if that brings me a working
and integrated browser back :)

debuginfo packages where not yet installed, will do so now.

(gdb) bt                                                                        
#0  0x00007f0f50ebf049 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0                                                          
#1  0x00007f0f5070c232 in g_once_init_enter_impl () from
/usr/lib64/libglib-2.0.so.0                                                     
#2  0x00007f0f3842fdfc in gdk_display_get_type () from
/usr/lib64/libgdk-x11-2.0.so                                                    
#3  0x00007f0f3845e039 in gdk_x11_display_get_xdisplay () from
/usr/lib64/libgdk-x11-2.0.so                                                    
#4  0x00007f0f5458ff7c in WebCore::PluginView::platformStart() () from
/usr/lib64/libQtWebKit.so.4                                                     
#5  0x00007f0f5445696a in WebCore::PluginView::start() () from
/usr/lib64/libQtWebKit.so.4                                                     
#6  0x00007f0f54456bfb in WebCore::PluginView::init() () from
/usr/lib64/libQtWebKit.so.4                                                     
#7  0x00007f0f54436418 in
WebCore::ScrollView::addChild(WTF::PassRefPtr<WebCore::Widget>) () from
/usr/lib64/libQtWebKit.so.4                                      
#8  0x00007f0f54500587 in
WebCore::RenderWidget::setWidget(WTF::PassRefPtr<WebCore::Widget>) () from
/usr/lib64/libQtWebKit.so.4                                   
#9  0x00007f0f544d1a17 in
WebCore::RenderPart::setWidget(WTF::PassRefPtr<WebCore::Widget>) () from
/usr/lib64/libQtWebKit.so.4                                     
#10 0x00007f0f5437470e in
WebCore::FrameLoader::loadPlugin(WebCore::RenderPart*, WebCore::KURL const&,
WebCore::String const&, WTF::Vector<WebCore::String, 0ul> const&,
WTF::Vector<WebCore::String, 0ul> const&, bool) () from
/usr/lib64/libQtWebKit.so.4                                                     
#11 0x00007f0f54377aa6 in
WebCore::FrameLoader::requestObject(WebCore::RenderPart*, WebCore::String
const&, WebCore::AtomicString const&, WebCore::String const&,
WTF::Vector<WebCore::String, 0ul> const&, WTF::Vector<WebCore::String, 0ul>
const&) () from /usr/lib64/libQtWebKit.so.4                                     
#12 0x00007f0f544d5360 in WebCore::RenderPartObject::updateWidget(bool) () from
/usr/lib64/libQtWebKit.so.4                                                     
#13 0x00007f0f543e354b in WebCore::FrameView::updateWidgets() () from
/usr/lib64/libQtWebKit.so.4                                                     
#14 0x00007f0f543e522d in WebCore::FrameView::performPostLayoutTasks() () from
/usr/lib64/libQtWebKit.so.4                                                     
#15 0x00007f0f543e66ce in WebCore::FrameView::layout(bool) () from
/usr/lib64/libQtWebKit.so.4                                                     
#16 0x00007f0f541f0a4a in
WebCore::Document::updateLayoutIgnorePendingStylesheets() () from
/usr/lib64/libQtWebKit.so.4                                                     
#17 0x00007f0f543c1a80 in WebCore::DOMWindow::scrollY() const () from
/usr/lib64/libQtWebKit.so.4                                                     
#18 0x00007f0f5489a2f0 in WebCore::jsDOMWindowPageYOffset(JSC::ExecState*,
JSC::Identifier const&, JSC::PropertySlot const&) () from
/usr/lib64/libQtWebKit.so.4                 
#19 0x00007f0f5402d987 in
JSC::Interpreter::privateExecute(JSC::Interpreter::ExecutionFlag,
JSC::RegisterFile*, JSC::ExecState*, JSC::JSValue*) ()                          
   from /usr/lib64/libQtWebKit.so.4                                             
#20 0x00007f0f5403852f in JSC::Interpreter::execute(JSC::ProgramExecutable*,
JSC::ExecState*, JSC::ScopeChainNode*, JSC::JSObject*, JSC::JSValue*) ()        
   from /usr/lib64/libQtWebKit.so.4                                             
#21 0x00007f0f5406796f in JSC::evaluate(JSC::ExecState*, JSC::ScopeChain&,
JSC::SourceCode const&, JSC::JSValue) () from /usr/lib64/libQtWebKit.so.4       
#22 0x00007f0f54126e15 in WebCore::evaluateInWorld(JSC::ExecState*,
JSC::ScopeChain&, JSC::SourceCode const&, JSC::JSValue,
WebCore::DOMWrapperWorld*) ()                        
   from /usr/lib64/libQtWebKit.so.4                                             
#23 0x00007f0f541346b0 in
WebCore::ScriptController::evaluateInWorld(WebCore::ScriptSourceCode const&,
WebCore::DOMWrapperWorld*) () from /usr/lib64/libQtWebKit.so.4            
#24 0x00007f0f541348d2 in
WebCore::ScriptController::evaluate(WebCore::ScriptSourceCode const&) () from
/usr/lib64/libQtWebKit.so.4                                              
#25 0x00007f0f5414419a in
WebCore::ScriptController::executeScript(WebCore::ScriptSourceCode const&) ()
from /usr/lib64/libQtWebKit.so.4                                         
#26 0x00007f0f5431e741 in
WebCore::HTMLTokenizer::scriptExecution(WebCore::ScriptSourceCode const&,
WebCore::HTMLTokenizer::State) () from /usr/lib64/libQtWebKit.so.4           
#27 0x00007f0f54322fc7 in
WebCore::HTMLTokenizer::scriptHandler(WebCore::HTMLTokenizer::State) () from
/usr/lib64/libQtWebKit.so.4                                               
#28 0x00007f0f54323b20 in
WebCore::HTMLTokenizer::parseNonHTMLText(WebCore::SegmentedString&,
WebCore::HTMLTokenizer::State) () from /usr/lib64/libQtWebKit.so.4              
#29 0x00007f0f5432618e in
WebCore::HTMLTokenizer::parseTag(WebCore::SegmentedString&,
WebCore::HTMLTokenizer::State) () from /usr/lib64/libQtWebKit.so.4              
#30 0x00007f0f54326ae2 in
WebCore::HTMLTokenizer::write(WebCore::SegmentedString const&, bool) () from
/usr/lib64/libQtWebKit.so.4                                               
#31 0x00007f0f5431eed3 in
WebCore::HTMLTokenizer::notifyFinished(WebCore::CachedResource*) () from
/usr/lib64/libQtWebKit.so.4                                                   
#32 0x00007f0f5435d14c in WebCore::CachedScript::checkNotify() () from
/usr/lib64/libQtWebKit.so.4                                                     
#33 0x00007f0f543947cd in
WebCore::Loader::Host::didFinishLoading(WebCore::SubresourceLoader*) () from
/usr/lib64/libQtWebKit.so.4                                               
#34 0x00007f0f543a6493 in WebCore::SubresourceLoader::didFinishLoading() ()
from /usr/lib64/libQtWebKit.so.4                                                
#35 0x00007f0f5453cf9b in WebCore::QNetworkReplyHandler::finish() () from
/usr/lib64/libQtWebKit.so.4                                                     
#36 0x00007f0f5453d504 in
WebCore::QNetworkReplyHandler::qt_metacall(QMetaObject::Call, int, void**) ()
from /usr/lib64/libQtWebKit.so.4                                         
#37 0x00007f0f52630139 in QObject::event(QEvent*) () from
/usr/lib64/libQtCore.so.4                                                       
#38 0x00007f0f52e1d8ec in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib64/libQtGui.so.4                                                
#39 0x00007f0f52e23ecb in QApplication::notify(QObject*, QEvent*) () from
/usr/lib64/libQtGui.so.4
---Type <return> to continue, or q <return> to quit---
#40 0x00007f0f5262041c in QCoreApplication::notifyInternal(QObject*, QEvent*)
() from /usr/lib64/libQtCore.so.4
#41 0x00007f0f52622b97 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib64/libQtCore.so.4
#42 0x00007f0f52649de3 in ?? () from /usr/lib64/libQtCore.so.4
#43 0x00007f0f506e2dde in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#44 0x00007f0f506e67a8 in ?? () from /usr/lib64/libglib-2.0.so.0
#45 0x00007f0f506e68d0 in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#46 0x00007f0f52649923 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQtCore.so.4
#47 0x00007f0f52ecbe2e in ?? () from /usr/lib64/libQtGui.so.4
#48 0x00007f0f5261ed32 in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQtCore.so.4
#49 0x00007f0f5261f10c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQtCore.so.4
#50 0x00007f0f52622e5b in QCoreApplication::exec() () from
/usr/lib64/libQtCore.so.4

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