[Webkit-unassigned] [Bug 52425] Hang occurs when loading content at http://news.yahoo.com/s/ap/20110114/ap_on_bi_ge/as_japan_politics

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sat Jan 22 10:44:18 PST 2011


https://bugs.webkit.org/show_bug.cgi?id=52425





--- Comment #1 from Chris Petersen <cpetersen at apple.com>  2011-01-22 10:44:18 PST ---
This looks like the same hang on TOT Webkit ( r76427 ) when I finish loading http://www.apple.com/itunes/.



Sampling process 33921 for 3 seconds with 1 millisecond of run time between samples
Sampling completed, processing symbols...
Analysis of sampling Safari (pid 33921) every 1 millisecond
Call graph:
    2474 Thread_107352   DispatchQueue_1: com.apple.main-thread  (serial)
      2474 0x10000a1b8
        2474 NSApplicationMain
          2474 -[NSApplication run]
            2474 0x1000162ec
              2474 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]
                2474 _DPSNextEvent
                  2474 BlockUntilNextEventMatchingListInMode
                    2474 ReceiveNextEventCommon
                      2474 RunCurrentEventLoopInMode
                        2474 CFRunLoopRunSpecific
                          2474 __CFRunLoopRun
                            2474 __NSFireTimer
                              2474 0x100045d8f
                                2474 0x100045ece
                                  2474 0x100046426
                                    2474 0x1000465e3
                                      2474 0x1000468de
                                        2474 0x100046bc4
                                          2474 -[NSView displayRectIgnoringOpacity:inContext:]
                                            2474 -[WebHTMLView(WebPrivate) _recursive:displayRectIgnoringOpacity:inContext:topView:]
                                              2474 -[NSView(NSInternal) _recursive:displayRectIgnoringOpacity:inContext:topView:]
                                                2474 -[WebHTMLView drawRect:]
                                                  2474 -[WebHTMLView drawSingleRect:]
                                                    2474 -[WebFrame(WebInternal) _drawRect:contentsOnly:]
                                                      2474 WebCore::FrameView::paintContents(WebCore::GraphicsContext*, WebCore::IntRect const&)
                                                        2474 WebCore::FrameView::notifyWidgetsInAllFrames(WebCore::WidgetNotification)
                                                          2474 WebCore::RenderView::notifyWidgets(WebCore::WidgetNotification)
                                                            2474 NetscapePluginWidget::notifyWidget(WebCore::WidgetNotification)
                                                              2474 -[WebBaseNetscapePluginView cacheSnapshot]
                                                                2474 -[WebHostedNetscapePluginView drawRect:]
                                                                  2474 WebKit::NetscapePluginInstanceProxy::snapshot(CGContext*, unsigned int, unsigned int)
                                                                    2474 WebKit::NetscapePluginInstanceProxy::processRequestsAndWaitForReply(unsigned int)
                                                                      2474 WebKit::NetscapePluginHostProxy::processRequests()
                                                                        2474 mach_msg
                                                                          2474 mach_msg_trap
    2474 Thread_107353   DispatchQueue_2: com.apple.libdispatch-manager  (serial)
      2474 start_wqthread
        2474 _pthread_wqthread
          2474 _dispatch_worker_thread2
            2474 _dispatch_queue_invoke
              2474 _dispatch_mgr_invoke
                2474 kevent
    2474 Thread_107357: WebCore: IconDatabase
      2474 thread_start
        2474 _pthread_start
          2474 WebCore::IconDatabase::iconDatabaseSyncThread()
            2474 WebCore::IconDatabase::syncThreadMainLoop()
              2474 _pthread_cond_wait
                2474 __semwait_signal
    2474 Thread_107361: Safari: SafeBrowsingManager
      2474 thread_start
        2474 _pthread_start
          2474 0x10002f821
            2474 0x10002f891
              2474 CFRunLoopRunSpecific
                2474 __CFRunLoopRun
                  2474 mach_msg
                    2474 mach_msg_trap
    2474 Thread_107363
      2474 thread_start
        2474 _pthread_start
          2474 __NSThread__main__
            2474 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:]
              2474 CFRunLoopRunSpecific
                2474 __CFRunLoopRun
                  2474 mach_msg
                    2474 mach_msg_trap
    2474 Thread_107368: com.apple.CFSocket.private
      2474 thread_start
        2474 _pthread_start
          2474 __CFSocketManager
            2474 select$DARWIN_EXTSN
    2474 Thread_107372: Safari: SnapshotStore
      2474 thread_start
        2474 _pthread_start
          2474 0x1000471f1
            2474 0x100047373
              2474 0x1001be861
                2474 WTF::ThreadCondition::timedWait(WTF::Mutex&, double)
                  2474 _pthread_cond_wait
                    2474 __semwait_signal
    2474 Thread_107518
      2474 thread_start
        2474 _pthread_start
          2474 thread_fun
            2474 CA::Render::Server::server_thread(void*)
              2474 mach_msg
                2474 mach_msg_trap
    2474 Thread_107554: Safari: SpinningProgressIndicator
      2474 thread_start
        2474 _pthread_start
          2474 __NSThread__main__
            2474 0x100090323
              2474 -[NSRunLoop(NSRunLoop) run]
                2474 -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
                  2474 CFRunLoopRunSpecific
                    2474 __CFRunLoopRun
                      2468 mach_msg
                        2468 mach_msg_trap
                      5 __NSFireTimer
                        1 0x1000908f9
                          1 0x100090ac3
                            1 -[NSObject(NSObject) retain]
                              1 __CFDoExternRefOperation
                                1 CFBasicHashAddValue
                                  1 ___CFBasicHashFindBucket1
                        1 0x100090933
                          1 objc_msgSend_stret
                        1 0x100090986
                          1 0x100090cd8
                            1 0x10008f7b8
                              1 objc_msgSend
                        1 0x1000909a2
                          1 -[__NSFastEnumerationEnumerator nextObject]
                            1 _CFAppVersionCheckLessThan
                              1 CFEqual
                        1 0x1000909cb
                          1 ripc_Operation
                            1 CGSDeviceSynchronize
                              1 _CGSFlushRegionInline
                                1 mach_msg
                                  1 mach_msg_trap
                      1 mk_timer_arm
    2474 Thread_107570
      2474 start_wqthread
        2474 _pthread_wqthread
          2474 __workq_kernreturn

Total number in stack (recursive counted multiple, when >=5):
        7       _pthread_start
        7       thread_start
        6       mach_msg
        6       mach_msg_trap

Sort by top of stack, same collapsed (when >= 5):
        mach_msg_trap        12365
        __semwait_signal        4948
        __workq_kernreturn        2474
        kevent        2474
        select$DARWIN_EXTSN        2474
Sample analysis of process 33921 written to file /dev/stdout

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