[Webkit-unassigned] [Bug 106106] New: REGRESSION: [Mac Lion] Intermittent crashes in AXObjectCache::notificationPostTimerFired

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=106106

           Summary: REGRESSION: [Mac Lion] Intermittent crashes in
                    AXObjectCache::notificationPostTimerFired
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: NeedsRadar
          Severity: Normal
          Priority: P2
         Component: Accessibility
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: cfleizach at apple.com, enrica at apple.com


I'm seeing intermittent crashes on Lion with a stack trace like:

CRASHING TEST: svg/as-image/img-preserveAspectRatio-support-2.html
objc[40240]: garbage collection is OFF

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore                 0x0000000107cc6ae7 WebCore::AXObjectCache::notificationPostTimerFired(WebCore::Timer<WebCore::AXObjectCache>*) + 55 (AXObjectCache.cpp:611)
1   com.apple.WebCore                 0x000000010897cd1f WebCore::ThreadTimers::sharedTimerFiredInternal() + 159 (ThreadTimers.cpp:119)
2   com.apple.WebCore                 0x0000000108808083 _ZN7WebCoreL10timerFiredEP16__CFRunLoopTimerPv + 51 (SharedTimerMac.mm:167)
3   com.apple.CoreFoundation          0x00007fff86767934 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
4   com.apple.CoreFoundation          0x00007fff86767486 __CFRunLoopDoTimer + 534
5   com.apple.CoreFoundation          0x00007fff86747e11 __CFRunLoopRun + 1617
6   com.apple.CoreFoundation          0x00007fff86747486 CFRunLoopRunSpecific + 230
7   com.apple.Foundation              0x00007fff83611f7b -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 267
8   DumpRenderTree                    0x00000001072eb3d3 _ZL7runTestRKNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEE + 1624
9   DumpRenderTree                    0x00000001072eab5e dumpRenderTree(int, char const**) + 1855
10  DumpRenderTree                    0x00000001072eb73c main + 86
11  DumpRenderTree                    0x00000001072dfbb4 start + 52

http://build.webkit.org/results/Apple%20Lion%20Release%20WK1%20(Tests)/r138805%20(7800)/results.html
http://build.webkit.org/results/Apple%20Lion%20Release%20WK1%20(Tests)/r138804%20(7799)/results.html

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