[Webkit-unassigned] [Bug 21380] New: many crashes running layout tests under GuardMalloc

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=21380

           Summary: many crashes running layout tests under GuardMalloc
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Macintosh Intel
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: darin at chromium.org


many crashes running layout tests under GuardMalloc

$ ./WebKitTools/Scripts/run-webkit-tests -g -c debug fast/dom

fast/dom/DOMParser-assign-variable.html -> crashed
fast/dom/ImageDocument-image-deletion.html -> crashed
fast/dom/NamedNodeMap-setNamedItem-crash.html -> crashed
fast/dom/XMLSerializer-doctype2.html -> crashed
...

In fact, it would appear that they are all crashing.

I have not been successful at running DumpRenderTree under GDB when GuardMalloc
is enabled.  DRT hits an EXC_BAD_ACCESS signal really early on (too early on to
correspond to the crash observed while not running under GDB).

Under GDB w/ GuardMalloc enabled, I get this backtrace:

#0  0x936d5a21 in _LSCopyInfoForNode ()
#1  0x936f28cb in LSCopyItemInfoForURL ()
#2  0x951a9590 in CGSNewConnection ()
#3  0x951a558f in _CGSDefaultConnection ()
#4  0x90f3c48f in _RegisterApplication ()
#5  0x90f3bc5a in GetCurrentProcess ()
#6  0x96014750 in GetSystemUIMode ()
#7  0x960146ff in IsMenuBarVisible ()
#8  0x92d69271 in _NSInitializeAppContext ()
#9  0x92d68bfa in -[NSApplication init] ()
#10 0x92d6860b in +[NSApplication sharedApplication] ()
#11 0x00006582 in main (argc=3, argv=0xbffff878) at
/Users/darin/webkit-trunk/We
bKit/WebKitTools/DumpRenderTree/mac/DumpRenderTree.mm:535

So, I think there is just some problem with running GuardMalloc under GDB that
makes it hard for me to determine why 'run-webkit-tests -g' is crashing all the
time.


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