[Webkit-unassigned] [Bug 17156] New: SHOULD NEVER BE REACHED in KJS::PropertySlot::ungettableGetter

Sat Feb 2 12:44:39 PST 2008

http://bugs.webkit.org/show_bug.cgi?id=17156

           Summary: SHOULD NEVER BE REACHED in
                    KJS::PropertySlot::ungettableGetter
           Product: WebKit
           Version: 525+ (Nightly build)
          Platform: Macintosh
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: webkit at mattlilek.com

Hit this while stepping out using Drosera:

SHOULD NEVER BE REACHED
(/Users/matt/Code/WebKit/JavaScriptCore/kjs/property_slot.cpp:37 static
KJS::JSValue* KJS::PropertySlot::ungettableGetter(KJS::ExecState*,
KJS::JSObject*, const KJS::Identifier&, const KJS::PropertySlot&))

Thread 0 Crashed:
0   com.apple.JavaScriptCore            0x0042b6b0
KJS::PropertySlot::ungettableGetter(KJS::ExecState*, KJS::JSObject*,
KJS::Identifier const&, KJS::PropertySlot const&) + 58 (property_slot.cpp:37)
1   com.apple.JavaScriptCore            0x0046a6f6
KJS::PropertySlot::getValue(KJS::ExecState*, KJS::JSObject*, KJS::Identifier
const&) const + 132 (property_slot.h:49)
2   com.apple.JavaScriptCore            0x00420b1a
KJS::JSObject::get(KJS::ExecState*, KJS::Identifier const&) const + 74
(object.cpp:164)
3   com.apple.WebCore                   0x01fb46f2 -[WebScriptObject
valueForKey:] + 274 (WebScriptObject.mm:386)
4   com.apple.CoreFoundation            0x904a7b9d __invoking___ + 29
5   com.apple.CoreFoundation            0x904a7588 -[NSInvocation invoke] + 136
6   com.apple.CoreFoundation            0x904a7658 -[NSInvocation
invokeWithTarget:] + 72
7   com.apple.CoreFoundation            0x904a7aca ___forwarding___ + 986
8   com.apple.CoreFoundation            0x904a7b32 _CF_forwarding_prep_0 + 50
9   com.apple.CoreFoundation            0x904a7b9d __invoking___ + 29
10  com.apple.CoreFoundation            0x904a7588 -[NSInvocation invoke] + 136
11  com.apple.Foundation                0x90ad95d4 -[NSConnection
dispatchInvocation:] + 132
12  com.apple.Foundation                0x90ad7587 -[NSConnection
handleRequest:sequence:] + 1319
13  com.apple.Foundation                0x90ad6dcd -[NSConnection
handlePortCoder:] + 1149
14  com.apple.Foundation                0x90ad68fe -[NSConcretePortCoder
dispatch] + 142
15  com.apple.Foundation                0x90ad6063 __NSFireMachPort + 339
16  com.apple.CoreFoundation            0x904045c5 __CFMachPortPerform + 117
17  com.apple.CoreFoundation            0x90428941 CFRunLoopRunSpecific + 3921
18  com.apple.CoreFoundation            0x90428d38 CFRunLoopRunInMode + 88
19  com.apple.Foundation                0x90ad2e8d -[NSConnection
sendInvocation:internal:] + 3005
20  com.apple.Foundation                0x90ad2009 -[NSDistantObject
forwardInvocation:] + 329
21  com.apple.CoreFoundation            0x904a7aca ___forwarding___ + 986
22  com.apple.CoreFoundation            0x904a7b32 _CF_forwarding_prep_0 + 50
23  com.apple.WebKit                    0x0020f5c0 -[WebScriptDebugServer
webView:didEnterCallFrame:sourceId:line:forWebFrame:] + 218
(WebScriptDebugServer.m:302)
24  com.apple.WebKit                    0x0020db9a -[WebScriptDebugger
enteredFrame:sourceId:line:] + 302 (WebScriptDebugDelegate.mm:105)
25  com.apple.WebCore                   0x01fb1482
WebCoreScriptDebuggerImp::callEvent(KJS::ExecState*, int, int, KJS::JSObject*,
KJS::List const&) + 168 (WebCoreScriptDebugger.mm:108)
26  com.apple.JavaScriptCore            0x00449473
KJS::FunctionBodyNodeWithDebuggerHooks::execute(KJS::ExecState*) + 139
(nodes.cpp:4629)
27  com.apple.JavaScriptCore            0x00438360
KJS::FunctionImp::callAsFunction(KJS::ExecState*, KJS::JSObject*, KJS::List
const&) + 116 (function.cpp:76)
28  com.apple.JavaScriptCore            0x0043db94
KJS::JSObject::call(KJS::ExecState*, KJS::JSObject*, KJS::List const&) + 222
(object.cpp:96)
29  com.apple.WebCore                   0x01ff6b48
WebCore::JSAbstractEventListener::handleEvent(WebCore::Event*, bool) + 608
(kjs_events.cpp:114)
30  com.apple.WebCore                   0x01b91277
WebCore::EventTarget::handleLocalEvents(WebCore::EventTargetNode*,
WebCore::Event*, bool) + 385 (EventTarget.cpp:305)
31  com.apple.WebCore                   0x01b919a0
WebCore::EventTargetNode::handleLocalEvents(WebCore::Event*, bool) + 118
(EventTargetNode.cpp:100)
32  com.apple.WebCore                   0x01b90aeb
WebCore::EventTarget::dispatchGenericEvent(WebCore::EventTargetNode*,
WTF::PassRefPtr<WebCore::Event>, int&, bool) + 769 (EventTarget.cpp:185)
33  com.apple.WebCore                   0x01b91fbe
WebCore::EventTargetNode::dispatchEvent(WTF::PassRefPtr<WebCore::Event>, int&,
bool) + 364 (EventTargetNode.cpp:115)
34  com.apple.WebCore                   0x01b92cb1
WebCore::EventTargetNode::dispatchMouseEvent(WebCore::AtomicString const&, int,
int, int, int, int, int, bool, bool, bool, bool, bool, WebCore::Node*,
WTF::PassRefPtr<WebCore::Event>) + 697 (EventTargetNode.cpp:289)
35  com.apple.WebCore                   0x01b93405
WebCore::EventTargetNode::dispatchMouseEvent(WebCore::PlatformMouseEvent
const&, WebCore::AtomicString const&, int, WebCore::Node*) + 497
(EventTargetNode.cpp:206)
36  com.apple.WebCore                   0x01b88dce
WebCore::EventHandler::dispatchMouseEvent(WebCore::AtomicString const&,
WebCore::Node*, bool, int, WebCore::PlatformMouseEvent const&, bool) + 148
(EventHandler.cpp:1274)
37  com.apple.WebCore                   0x01b89d90
WebCore::EventHandler::handleMouseMoveEvent(WebCore::PlatformMouseEvent const&,
WebCore::HitTestResult*) + 1734 (EventHandler.cpp:1044)
38  com.apple.WebCore                   0x01b89e29
WebCore::EventHandler::mouseMoved(WebCore::PlatformMouseEvent const&) + 61
(EventHandler.cpp:950)
39  com.apple.WebCore                   0x01b8e3bb
WebCore::EventHandler::mouseMoved(NSEvent*) + 363 (EventHandlerMac.mm:611)
40  com.apple.WebKit                    0x001d303f -[WebHTMLView(WebPrivate)
_updateMouseoverWithEvent:] + 1225 (WebHTMLView.mm:1372)
41  com.apple.WebKit                    0x001ca77e -[WebHTMLView
mouseMovedNotification:] + 98 (WebHTMLView.mm:3156)
42  com.apple.Foundation                0x90a9b67a _nsnote_callback + 106
43  com.apple.CoreFoundation            0x90409a4a __CFXNotificationPost + 362
44  com.apple.CoreFoundation            0x90409d23
_CFXNotificationPostNotification + 179
45  com.apple.Foundation                0x90a98a70 -[NSNotificationCenter
postNotificationName:object:userInfo:] + 128
46  com.apple.AppKit                    0x929d95e8 -[NSResponder
_postEventNotification:] + 297
47  com.apple.AppKit                    0x929d9282 forwardMethod + 208
48  com.apple.AppKit                    0x929d9223 forwardMethod + 113
49  com.apple.AppKit                    0x929d9223 forwardMethod + 113
50  com.apple.AppKit                    0x929d9223 forwardMethod + 113
51  com.apple.AppKit                    0x929d9223 forwardMethod + 113
52  com.apple.AppKit                    0x929d9223 forwardMethod + 113
53  com.apple.AppKit                    0x929d9223 forwardMethod + 113
54  com.apple.AppKit                    0x9294d8e2 -[NSWindow sendEvent:] +
8249
55  com.apple.AppKit                    0x9291a118 -[NSApplication sendEvent:]
+ 4538
56  com.apple.Safari                    0x000324a8 0x1000 + 201896
57  com.apple.AppKit                    0x92877705 -[NSApplication run] + 847
58  com.apple.AppKit                    0x928449ba NSApplicationMain + 574
59  com.apple.Safari                    0x00002876 0x1000 + 6262

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