[Webkit-unassigned] [Bug 46261] New: Web Inspector: CRASH at node highlight on MAC Safari

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=46261

           Summary: Web Inspector: CRASH at node highlight on MAC Safari
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: loislo at chromium.org
                CC: timothy at apple.com, rik at webkit.org, keishi at webkit.org,
                    pmuellr at yahoo.com, joepeck at webkit.org,
                    pfeldman at chromium.org, yurys at chromium.org,
                    bweinstein at apple.com, apavlov at chromium.org,
                    loislo at chromium.org


1) run-safari --debug
2) open inspector
3) open elements panel
4) hover mouse over elements panel items
5) try to switch to another tab. In my case Timeline
6) CRASH

call stack

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000328
0x000000010147b546 in WTF::RefPtr<WebCore::Node>::operator! (this=0x328) at RefPtr.h:68
68            bool operator!() const { return !m_ptr; }
(gdb) BT
#0  0x000000010147b546 in WTF::RefPtr<WebCore::Node>::operator! (this=0x328) at RefPtr.h:68
#1  0x00000001019ea1f9 in WebCore::InspectorController::drawNodeHighlight (this=0x0, context=@0x7fff5fbfd2f0) at /Users/Shared/loislo/Projects/chromium/src/third_party/WebKit/WebCore/inspector/InspectorController.cpp:1802
#2  0x0000000100f840e0 in -[WebNodeHighlightView drawRect:] (self=0x11e479100, _cmd=0x7fff874a0e08, rect={origin = {x = 0, y = 0}, size = {width = 1371, height = 784}}) at WebNodeHighlightView.mm:75
#3  0x00007fff86e65081 in -[NSView _drawRect:clip:] ()
#4  0x00007fff86e63cf4 in -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] ()
#5  0x00007fff86e6405e in -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] ()
#6  0x00007fff86e623c6 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] ()
#7  0x00007fff86f80b84 in -[NSNextStepFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] ()
#8  0x00007fff86e5e79a in -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] ()
#9  0x00007fff86dd7ff6 in -[NSView displayIfNeeded] ()
#10 0x00007fff86d8d7e4 in -[NSNextStepFrame displayIfNeeded] ()
#11 0x00007fff86dd2ea2 in _handleWindowNeedsDisplay ()
#12 0x00007fff811aea2d in __NSFireTimer ()
#13 0x00007fff85318678 in __CFRunLoopRun ()
#14 0x00007fff8531684f in CFRunLoopRunSpecific ()
#15 0x00007fff881c991a in RunCurrentEventLoopInMode ()
#16 0x00007fff881c967d in ReceiveNextEventCommon ()
#17 0x00007fff881c95d8 in BlockUntilNextEventMatchingListInMode ()
#18 0x00007fff86da829e in _DPSNextEvent ()
#19 0x00007fff86da7bed in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] ()
#20 0x00000001000165d8 in ?? ()
#21 0x00007fff86d6d8d3 in -[NSApplication run] ()
#22 0x00007fff86d665f8 in NSApplicationMain ()
#23 0x000000010000a4a4 in ?? ()
Current language:  auto; currently c++
(gdb) ГЗ
Undefined command: "".  Try "help".
(gdb) up
#1  0x00000001019ea1f9 in WebCore::InspectorController::drawNodeHighlight (this=0x0, context=@0x7fff5fbfd2f0) at /Users/Shared/loislo/Projects/chromium/src/third_party/WebKit/WebCore/inspector/InspectorController.cpp:1802
1802        if (!m_highlightedNode)
(gdb) list
1797        return mainFramePoint - IntPoint();
1798    }
1799    
1800    void InspectorController::drawNodeHighlight(GraphicsContext& context) const
1801    {
1802        if (!m_highlightedNode)
1803            return;
1804    
1805        RenderObject* renderer = m_highlightedNode->renderer();
1806        Frame* containingFrame = m_highlightedNode->document()->frame();
(gdb) p this
$1 = (const 'WebCore::InspectorController' * const) 0x0
(gdb) up
#2  0x0000000100f840e0 in -[WebNodeHighlightView drawRect:] (self=0x11e479100, _cmd=0x7fff874a0e08, rect={origin = {x = 0, y = 0}, size = {width = 1371, height = 784}}) at WebNodeHighlightView.mm:75
75        [_webNodeHighlight inspectorController]->drawNodeHighlight(context);
Current language:  auto; currently objective-c++
(gdb)

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