[Webkit-unassigned] [Bug 95699] New: !needsLayout assertion firing often

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=95699

           Summary: !needsLayout assertion firing often
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: dino at apple.com
                CC: mitz at webkit.org, simon.fraser at apple.com


I'm hitting this assertion fairly often.

ASSERTION FAILED: !needsLayout()
/Users/dino/apple/code/WebKit-OpenSource/Source/WebCore/page/FrameView.cpp(3148) : virtual void WebCore::FrameView::paintContents(WebCore::GraphicsContext *, const WebCore::IntRect &)
1   0x1021e788d WebCore::FrameView::paintContents(WebCore::GraphicsContext*, WebCore::IntRect const&)
2   0x1006e1993 -[WebFrame(WebInternal) _drawRect:contentsOnly:]
3   0x100737fc0 -[WebHTMLView drawSingleRect:]
4   0x1007386a0 -[WebHTMLView drawRect:]

The setup is a single document with an iframe element. The script in the top level sets the src of the iframe and then extracts some of the content (each of the sub-documents is a test case). Overall, it updates the iframe src about 300 times, and almost certainly asserts at some point in the run. Commenting it out appears harmless (the next line is an early return).

-- 
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.