[Webkit-unassigned] [Bug 20521] Crash in KJS::Register::codeBlock() logging into Facebook

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=20521


webkit at mattlilek.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |oliver at apple.com,
                   |                            |cwzwarich at uwaterloo.ca
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
           Keywords|                            |NeedsReduction, Regression
            Summary|FaceBook crashes on login   |Crash in
                   |                            |KJS::Register::codeBlock()
                   |                            |logging into Facebook




------- Comment #3 from webkit at mattlilek.com  2008-08-26 07:10 PDT -------
Confirmed with r35919.

ASSERTION FAILED: m_type == CodeBlockType
(/Users/mlilek/Documents/WebKit/JavaScriptCore/VM/Register.h:197
KJS::CodeBlock* KJS::Register::codeBlock() const)

Thread 0 Crashed:
0   com.apple.JavaScriptCore            0x005089ee KJS::Register::codeBlock()
const + 70 (Register.h:197)
1   com.apple.JavaScriptCore            0x004fc99a
KJS::Machine::callFrame(KJS::ExecState*, KJS::JSFunction*) const + 110
(Machine.cpp:2969)
2   com.apple.JavaScriptCore            0x004fcc19
KJS::Machine::retrieveArguments(KJS::ExecState*, KJS::JSFunction*) const + 33
(Machine.cpp:2904)
3   com.apple.JavaScriptCore            0x0044aa75
KJS::JSFunction::argumentsGetter(KJS::ExecState*, KJS::Identifier const&,
KJS::PropertySlot const&) + 55 (JSFunction.cpp:77)
4   com.apple.JavaScriptCore            0x004a611b
KJS::PropertySlot::getValue(KJS::ExecState*, KJS::Identifier const&) const + 91
(PropertySlot.h:60)
5   com.apple.JavaScriptCore            0x0050912a
KJS::JSValue::get(KJS::ExecState*, KJS::Identifier const&) const + 252
(JSObject.h:330)
6   com.apple.JavaScriptCore            0x0050409f
KJS::Machine::privateExecute(KJS::Machine::ExecutionFlag, KJS::ExecState*,
KJS::RegisterFile*, KJS::Register*, KJS::ScopeChainNode*, KJS::CodeBlock*,
KJS::JSValue**) + 22939 (Machine.cpp:1925)
7   com.apple.JavaScriptCore            0x00507d1c
KJS::Machine::execute(KJS::FunctionBodyNode*, KJS::ExecState*,
KJS::JSFunction*, KJS::JSObject*, KJS::ArgList const&, KJS::ScopeChainNode*,
KJS::JSValue**) + 716 (Machine.cpp:853)
8   com.apple.JavaScriptCore            0x004633b1
KJS::JSFunction::call(KJS::ExecState*, KJS::JSValue*, KJS::ArgList const&) +
139 (JSFunction.cpp:71)
9   com.apple.JavaScriptCore            0x0046344d KJS::call(KJS::ExecState*,
KJS::JSValue*, KJS::CallType, KJS::CallData const&, KJS::JSValue*, KJS::ArgList
const&) + 149 (CallData.cpp:39)
10  com.apple.JavaScriptCore            0x00473f8c
KJS::functionProtoFuncApply(KJS::ExecState*, KJS::JSObject*, KJS::JSValue*,
KJS::ArgList const&) + 494 (FunctionPrototype.cpp:107)
11  com.apple.JavaScriptCore            0x00505c87
KJS::Machine::privateExecute(KJS::Machine::ExecutionFlag, KJS::ExecState*,
KJS::RegisterFile*, KJS::Register*, KJS::ScopeChainNode*, KJS::CodeBlock*,
KJS::JSValue**) + 30083 (Machine.cpp:2461)
12  com.apple.JavaScriptCore            0x00507d1c
KJS::Machine::execute(KJS::FunctionBodyNode*, KJS::ExecState*,
KJS::JSFunction*, KJS::JSObject*, KJS::ArgList const&, KJS::ScopeChainNode*,
KJS::JSValue**) + 716 (Machine.cpp:853)
13  com.apple.JavaScriptCore            0x004633b1
KJS::JSFunction::call(KJS::ExecState*, KJS::JSValue*, KJS::ArgList const&) +
139 (JSFunction.cpp:71)
14  com.apple.JavaScriptCore            0x0046344d KJS::call(KJS::ExecState*,
KJS::JSValue*, KJS::CallType, KJS::CallData const&, KJS::JSValue*, KJS::ArgList
const&) + 149 (CallData.cpp:39)
15  com.apple.WebCore                   0x03863022
WebCore::JSAbstractEventListener::handleEvent(WebCore::Event*, bool) + 664
(JSEventListener.cpp:97)


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