[Webkit-unassigned] [Bug 34888] Mac OS X: Use deployment target to determine whether memory tagging should be enabled

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Apr 9 06:24:45 PDT 2010


https://bugs.webkit.org/show_bug.cgi?id=34888





--- Comment #23 from Kent Hansen <kent.hansen at nokia.com>  2010-04-09 06:24:43 PST ---
With or without the patch, my Qt/Mac build of r57269 with Qt/4.7 from March 15,
on Leopard-PPC, crashes with JSC-related backtrace (on e.g. qt.nokia.com). The
Safari build is fine.
No rush to set the cq+, in other words; I'll wait until I have a non-crashing
build without patch, to decrease the chance of this patch being blamed for the
crash. :)

Exception Type:  EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x00000000000000a3
Crashed Thread:  0

Thread 0 Crashed:
0   QtWebKit                          0x02ab1b60
JSC::BytecodeGenerator::addConstant(JSC::Identifier const&) + 32
1   QtWebKit                          0x02ab28e0
JSC::BytecodeGenerator::emitGetById(JSC::RegisterID*, JSC::RegisterID*,
JSC::Identifier const&) + 384
2   QtWebKit                          0x02ac78c4
JSC::PostfixDotNode::emitBytecode(JSC::BytecodeGenerator&, JSC::RegisterID*) +
708
3   QtWebKit                          0x02ad4f24
JSC::ExprStatementNode::emitBytecode(JSC::BytecodeGenerator&, JSC::RegisterID*)
+ 324
4   QtWebKit                          0x02ac9834
JSC::BlockNode::emitBytecode(JSC::BytecodeGenerator&, JSC::RegisterID*) + 340
5   QtWebKit                          0x02ad53b4
JSC::IfNode::emitBytecode(JSC::BytecodeGenerator&, JSC::RegisterID*) + 1124
6   QtWebKit                          0x02ac9834
JSC::BlockNode::emitBytecode(JSC::BytecodeGenerator&, JSC::RegisterID*) + 340
7   QtWebKit                          0x02ac2464
JSC::FunctionBodyNode::emitBytecode(JSC::BytecodeGenerator&, JSC::RegisterID*)
+ 372
8   QtWebKit                          0x02aaee1c
JSC::BytecodeGenerator::generate() + 60
9   QtWebKit                          0x02b4da78
JSC::FunctionExecutable::compile(JSC::ExecState*, JSC::ScopeChainNode*) + 1144
10  QtWebKit                          0x02af62b8
JSC::Interpreter::privateExecute(JSC::Interpreter::ExecutionFlag,
JSC::RegisterFile*, JSC::ExecState*, JSC::JSValue*) + 59048
11  QtWebKit                          0x02afd608
JSC::Interpreter::execute(JSC::ProgramExecutable*, JSC::ExecState*,
JSC::ScopeChainNode*, JSC::JSObject*, JSC::JSValue*) + 744
12  QtWebKit                          0x02b353b8 JSC::evaluate(JSC::ExecState*,
JSC::ScopeChain&, JSC::SourceCode const&, JSC::JSValue) + 488
13  QtWebKit                          0x0213b1f8
WebCore::ScriptController::evaluateInWorld(WebCore::ScriptSourceCode const&,
WebCore::DOMWrapperWorld*) + 664
14  QtWebKit                          0x0213be10
WebCore::ScriptController::evaluate(WebCore::ScriptSourceCode const&) + 48
15  QtWebKit                          0x0215aad8
WebCore::ScriptController::executeScript(WebCore::ScriptSourceCode const&) +
600
16  QtWebKit                          0x02455ea4
WebCore::HTMLTokenizer::scriptExecution(WebCore::ScriptSourceCode const&,
WebCore::HTMLTokenizer::State) + 84
17  QtWebKit                          0x02456cf0
WebCore::HTMLTokenizer::executeExternalScriptsIfReady() + 2272
18  QtWebKit                          0x024cebf4
WebCore::CachedScript::checkNotify() + 100
19  QtWebKit                          0x025248a4
WebCore::Loader::Host::didFinishLoading(WebCore::SubresourceLoader*) + 308
20  QtWebKit                          0x02545060
WebCore::SubresourceLoader::didFinishLoading() + 96
21  QtWebKit                          0x0279d43c
WebCore::QNetworkReplyHandler::finish() + 204

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