35335 2010-02-24 02:51:57 -0800 [REGRESSION in r55185] EXC_BAD_ACCESS on opening inspector. 2010-02-24 13:26:28 -0800 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) All All RESOLVED FIXED InRadar P2 Normal --- 1 pfeldman webkit-unassigned oliver timothy oldest_to_newest 193283 0 pfeldman 2010-02-24 02:51:57 -0800 1. Go to http://google.com 2. Open inspector Actual: #0 ?? #1 0x00676373 in JSC::JSValue::toThisObject at JSCell.h:325 #2 0x0074d956 in JSC::JSFunction::call at JSFunction.cpp:122 #3 0x0069e7f1 in JSC::call at CallData.cpp:39 #4 0x00731c78 in cti_op_get_by_id_getter_stub at JITStubs.cpp:1450 #5 0x00728236 in WTF::doubleHash at HashTable.h:446 #6 0x0070c07b in JSC::JITCode::execute at JITCode.h:79 #7 0x006f6063 in JSC::Interpreter::execute at Interpreter.cpp:687 #8 0x0074d9a7 in JSC::JSFunction::call at JSFunction.cpp:122 #9 0x0069e7f1 in JSC::call at CallData.cpp:39 #10 0x0075d8e5 in JSC::JSObject::put at JSObject.cpp:149 #11 0x00709386 in JSC::JSValue::put at JSObject.h:645 #12 0x00729c08 in cti_op_put_by_id_generic at JITStubs.cpp:1204 #13 0x00728236 in WTF::doubleHash at HashTable.h:446 #14 0x0070c07b in JSC::JITCode::execute at JITCode.h:79 #15 0x006f6063 in JSC::Interpreter::execute at Interpreter.cpp:687 #16 0x0074d9a7 in JSC::JSFunction::call at JSFunction.cpp:122 #17 0x0069e7f1 in JSC::call at CallData.cpp:39 #18 0x045e57fa in WebCore::ScheduledAction::executeFunctionInContext at ScheduledAction.cpp:106 #19 0x045e5d20 in WebCore::ScheduledAction::execute at ScheduledAction.cpp:126 #20 0x045e5dff in WebCore::ScheduledAction::execute at ScheduledAction.cpp:77 #21 0x03f2b826 in WebCore::DOMTimer::fired at DOMTimer.cpp:149 #22 0x0476fb1f in WebCore::ThreadTimers::sharedTimerFiredInternal at ThreadTimers.cpp:112 #23 0x0476fcbb in WebCore::ThreadTimers::sharedTimerFired at ThreadTimers.cpp:90 #24 0x0462fec6 in WebCore::timerFired at SharedTimerMac.mm:86 193448 1 oliver 2010-02-24 12:14:28 -0800 Got it, compileGetDirectOffset may clobber the base register if the object is not using inline storage. Weee! We really need some way to mark a register as being immutable and have that trigger assertion. Although i guess that wouldn't have helped here as it still depends on hitting the code path. 193454 2 oliver 2010-02-24 12:24:21 -0800 <rdar://problem/7686014> 193476 3 49424 oliver 2010-02-24 13:14:47 -0800 Created attachment 49424 Patch 193480 4 49424 ggaren 2010-02-24 13:18:10 -0800 Comment on attachment 49424 Patch r=me 193486 5 oliver 2010-02-24 13:26:28 -0800 Committed r55198: <http://trac.webkit.org/changeset/55198> 49424 2010-02-24 13:14:47 -0800 2010-02-24 13:18:10 -0800 Patch bug-35335-20100224131445.patch text/plain 10862 oliver ZGlmZiAtLWdpdCBhL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZyBiL0phdmFTY3JpcHRDb3JlL0No YW5nZUxvZwppbmRleCA4Nzc2MDZjLi4yOTQyZTBlIDEwMDY0NAotLS0gYS9KYXZhU2NyaXB0Q29y ZS9DaGFuZ2VMb2cKKysrIGIvSmF2YVNjcmlwdENvcmUvQ2hhbmdlTG9nCkBAIC0xLDUgKzEsMjMg QEAKIDIwMTAtMDItMjQgIE9saXZlciBIdW50ICA8b2xpdmVyQGFwcGxlLmNvbT4KIAorICAgICAg ICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICBbUkVHUkVTU0lPTiBpbiBy 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