[Webkit-unassigned] [Bug 99900] New: REGRESSION: Nightly crashes in [NSToolTipManager startTimer:userInfo:]

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=99900

           Summary: REGRESSION: Nightly crashes in [NSToolTipManager
                    startTimer:userInfo:]
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
        OS/Version: Mac OS X 10.8
            Status: UNCONFIRMED
          Severity: Critical
          Priority: P1
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jon at jonshier.com


r131906 is currently crashing occasionally with the following stack: 

Crashed Thread:  0  Dispatch queue: com.apple.main-thread

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000000000010df

VM Regions Near 0x10df:
--> 
    __TEXT                 000000010ae65000-000000010ae66000 [    4K] r-x/rwx SM=COW  /Applications/Safari.app/Contents/MacOS/SafariForWebKitDevelopment

Application Specific Information:
objc_msgSend() selector name: retain
Enabled Extensions:
com.hoyois.safari.clicktoflash-GY5KR7239Q (46 - 2.7.1) ClickToFlash
com.red-sweater.safari.subscribetofeed-493CVA9A35 (3 - 1.0b4) Subscribe To Feed


Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libobjc.A.dylib                   0x00007fff86a75710 objc_msgSend_vtable13 + 16
1   com.apple.AppKit                  0x00007fff891018a3 -[NSToolTipManager startTimer:userInfo:] + 128
2   com.apple.AppKit                  0x00007fff88fd1c81 -[NSWindow sendEvent:] + 8504
3   com.apple.Safari.framework        0x00007fff8c031fdc -[Window sendEvent:] + 116
4   com.apple.Safari.framework        0x00007fff8be22b3b -[BrowserWindow sendEvent:] + 450
5   com.apple.AppKit                  0x00007fff88fcd744 -[NSApplication sendEvent:] + 5761
6   com.apple.Safari.framework        0x00007fff8bdbfe2e -[BrowserApplication sendEvent:] + 415
7   com.apple.AppKit                  0x00007fff88ee32fa -[NSApplication run] + 636
8   com.apple.AppKit                  0x00007fff88e87cb6 NSApplicationMain + 869
9   com.apple.Safari.framework        0x00007fff8bf93d54 SafariMain + 166
10  libdyld.dylib                     0x00007fff88ce07e1 start + 1

Started a few nightlies ago. Haven't found a real pattern.

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