Bug 35579 – Assertion failure beneath ScriptValue::deserialize when showing Inspector

• Component: New Bugs
• Status: RESOLVED INVALID

[Adam Roben (:aroben)]

I'm not sure how to reproduce this. What I did was:

1. Went to a page (the URL isn't publicly accessible)
2. Pressed Cmd-Opt-I to show the Inspector

Then I hit this assertion in Heap::allocate:

    ASSERT(JSLock::lockCount() > 0);

Here's the stack at the time the assertion was hit:

#0	0x1013de8f8 in JSC::Heap::allocate at Collector.cpp:394
#1	0x102136661 in JSC::JSCell::operator new at JSCell.h:170
#2	0x102ecf766 in JSC::constructEmptyObject at JSGlobalObject.h:419
#3	0x102ecf7cc in WebCore::DeserializingTreeWalker::createOutputObject at SerializedScriptValue.cpp:694
#4	0x102ed0cd0 in WebCore::walk<WebCore::DeserializingTreeWalker> at SerializedScriptValue.cpp:348
#5	0x102ebd2d6 in WebCore::SerializedScriptValueData::deserialize at SerializedScriptValue.cpp:812
#6	0x10296bc0a in WebCore::SerializedScriptValue::deserialize at SerializedScriptValue.h:215
#7	0x102e8e439 in WebCore::ScriptValue::deserialize at ScriptValue.cpp:93
#8	0x102763547 in WebCore::InspectorFrontend::addConsoleMessage at InspectorFrontend.cpp:105
#9	0x1021b3a8d in WebCore::ConsoleMessage::addToConsole at ConsoleMessage.cpp:93
#10	0x102726c3f in WebCore::InspectorController::populateScriptObjects at InspectorController.cpp:680
#11	0x102729b36 in WebCore::InspectorController::setWindowVisible at InspectorController.cpp:300
#12	0x101b61ab6 in -[WebInspectorWindowController showWindow:] at WebInspectorClient.mm:358
#13	0x101b6300c in WebInspectorClient::showWindow at WebInspectorClient.mm:110
#14	0x1027270a1 in WebCore::InspectorController::showWindow at InspectorController.cpp:635
#15	0x10272723b in WebCore::InspectorController::show at InspectorController.cpp:585
#16	0x101b5fe95 in -[WebInspector show:] at WebInspector.mm:58

[Blaze Burg]

No test case, this bug is not actionable. Closing.