[Webkit-unassigned] [Bug 100615] New: ASSERTION FAILED: !currBox->needsLayout() : void WebCore::RenderBlock::checkPositionedObjectsNeedLayout()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=100615

           Summary: ASSERTION FAILED: !currBox->needsLayout() : void
                    WebCore::RenderBlock::checkPositionedObjectsNeedLayout
                    ()
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
               URL: http://www.bing.com/maps/
        OS/Version: Mac OS X 10.8
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rex_4539 at yahoo.com


Created an attachment (id=171142)
 --> (https://bugs.webkit.org/attachment.cgi?id=171142&action=review)
Crash log.

r132751

Reproducibility: always

Steps:
http://www.bing.com/maps/

What happened:
ASSERTION FAILED: !currBox->needsLayout()
/Users/rex/WebKit/Source/WebCore/rendering/RenderBlock.cpp(7693) : void WebCore::RenderBlock::checkPositionedObjectsNeedLayout()
1   0x105d999b0 WebCore::RenderBlock::checkPositionedObjectsNeedLayout()
2   0x105ef0924 WebCore::RenderObject::checkBlockPositionedObjectsNeedLayout()
3   0x104f5a871 WebCore::RenderObject::setNeedsLayout(bool, WebCore::MarkingBehavior)
4   0x105d721ce WebCore::RenderBlock::layoutBlock(bool, WebCore::FractionalLayoutUnit)
5   0x105d707de WebCore::RenderBlock::layout()
6   0x106012e84 WebCore::RenderView::layoutContent(WebCore::LayoutState const&)
7   0x10601356d WebCore::RenderView::layout()
8   0x10526934b WebCore::FrameView::layout(bool)
9   0x104f11044 WebCore::Document::updateLayout()
10  0x104f11115 WebCore::Document::updateLayoutIgnorePendingStylesheets()
11  0x1050cd21e WebCore::DOMWindow::scrollY() const
12  0x105739ff5 WebCore::DOMWindow::pageYOffset() const
13  0x105709f52 WebCore::jsDOMWindowPageYOffset(JSC::ExecState*, JSC::JSValue, JSC::PropertyName)
14  0x103c77f39 JSC::PropertySlot::getValue(JSC::ExecState*, JSC::PropertyName) const
15  0x103c8af72 JSC::JSValue::get(JSC::ExecState*, JSC::PropertyName, JSC::PropertySlot&) const
16  0x104038b11 llint_slow_path_get_by_id
17  0x104041d5f llint_op_get_by_id
18  0x103e4c864 JSC::JITCode::execute(JSC::JSStack*, JSC::ExecState*, JSC::JSGlobalData*)
19  0x103e49aef JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)
20  0x103ce6d62 JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)
21  0x105630ff2 WebCore::JSMainThreadExecState::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&)
22  0x106086c2f WebCore::ScheduledAction::executeFunctionInContext(JSC::JSGlobalObject*, JSC::JSValue, WebCore::ScriptExecutionContext*)
23  0x1060867f3 WebCore::ScheduledAction::execute(WebCore::Document*)
24  0x106086634 WebCore::ScheduledAction::execute(WebCore::ScriptExecutionContext*)
25  0x1050bcb07 WebCore::DOMTimer::fired()
26  0x10641ace6 WebCore::ThreadTimers::sharedTimerFiredInternal()
27  0x10641aa79 WebCore::ThreadTimers::sharedTimerFired()
28  0x106144473 WebCore::timerFired(__CFRunLoopTimer*, void*)
29  0x7fff84a43da4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
30  0x7fff84a438bd __CFRunLoopDoTimer
31  0x7fff84a29099 __CFRunLoopRun

Expected result:
No assert failure.

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