[Webkit-unassigned] [Bug 91782] New: REGRESSION: Crash in WebKit::PageOverlay

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=91782

           Summary: REGRESSION: Crash in WebKit::PageOverlay
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
        OS/Version: Mac OS X 10.7
            Status: UNCONFIRMED
          Severity: Critical
          Priority: P1
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: kevin at rhubarbproductions.com


Since July 18th, I received a few crashes when closing a tab with the Web Inspector open in it I believe. I'm not yet sure of the exact circumstance to trigger the crash.

Here's the first one.

Date/Time:       2012-07-18 17:51:52.586 -0400
OS Version:      Mac OS X 10.7.4 (11E53)

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000070

VM Regions Near 0x70:
--> 
    __TEXT                 00000001082a8000-00000001082a9000 [    4K] r-x/rwx SM=COW  /Applications/WebKit.app/Contents/Frameworks/10.7/WebKit2.framework/WebProcess.app/Contents/MacOS/WebProcess

Application Specific Information:
objc[26923]: garbage collection is OFF

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebKit2                 0x00000001084406ac WebKit::PageOverlay::bounds() const + 18
1   com.apple.WebKit2                 0x0000000108440807 WebKit::PageOverlay::setNeedsDisplay() + 17
2   com.apple.WebKit2                 0x00000001084941c8 WebKit::WebInspectorClient::highlight() + 92
3   com.apple.WebCore                 0x0000000108f8ba3f WebCore::InspectorDOMAgent::clearFrontend() + 127
4   com.apple.WebCore                 0x0000000108f78e69 WebCore::InspectorController::disconnectFrontend() + 121
5   com.apple.WebCore                 0x0000000108f78dbe WebCore::InspectorController::inspectedPageDestroyed() + 14
6   com.apple.WebCore                 0x0000000109346d0e WebCore::Page::~Page() + 350
7   com.apple.WebKit2                 0x00000001084a70f8 WTF::OwnPtr<WebCore::Page>::clear() + 36
8   com.apple.WebKit2                 0x00000001084a00db WebKit::WebPage::close() + 297
9   com.apple.WebKit2                 0x000000010846943f WebKit::WebConnectionToUIProcess::didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*) + 179
10  com.apple.WebKit2                 0x000000010840cd91 CoreIPC::Connection::dispatchMessage(CoreIPC::Connection::Message<CoreIPC::ArgumentDecoder>&) + 175
11  com.apple.WebKit2                 0x000000010840e2ab CoreIPC::Connection::dispatchOneMessage() + 139
12  com.apple.WebCore                 0x00000001094d3f48 WebCore::RunLoop::performWork() + 312
13  com.apple.WebCore                 0x00000001094d45a5 WebCore::RunLoop::performWork(void*) + 53
14  com.apple.CoreFoundation          0x00007fff8ab6c4f1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
15  com.apple.CoreFoundation          0x00007fff8ab6bd5d __CFRunLoopDoSources0 + 253
16  com.apple.CoreFoundation          0x00007fff8ab92b49 __CFRunLoopRun + 905
17  com.apple.CoreFoundation          0x00007fff8ab92486 CFRunLoopRunSpecific + 230
18  com.apple.HIToolbox               0x00007fff8a0834d3 RunCurrentEventLoopInMode + 277
19  com.apple.HIToolbox               0x00007fff8a08a781 ReceiveNextEventCommon + 355
20  com.apple.HIToolbox               0x00007fff8a08a60e BlockUntilNextEventMatchingListInMode + 62
21  com.apple.AppKit                  0x00007fff92e84e31 _DPSNextEvent + 659
22  com.apple.AppKit                  0x00007fff92e84735 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 135
23  com.apple.AppKit                  0x00007fff92e81071 -[NSApplication run] + 470
24  com.apple.WebCore                 0x00000001094d4b83 WebCore::RunLoop::run() + 67
25  com.apple.WebKit2                 0x00000001084e5c00 WebKit::WebProcessMain(WebKit::CommandLine const&) + 2695
26  com.apple.WebKit2                 0x000000010849889b WebKitMain + 305
27  com.apple.WebProcess              0x00000001082a8e5e main + 214
28  com.apple.WebProcess              0x00000001082a8d80 start + 52

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