A change committed some time since yesterday evening has introduced many crashes in JSC's GC during testing. A representative stack trace is attached.
If you have made changes in this area recently, can you please look into this? Thanks, -Ken
Thread 0 Crashed: Dispatch queue: com.apple.main-thread 0 com.apple.JavaScriptCore 0x0000000100936478 JSC::WeakGCPtr<JSC::JSPropertyNameIterator>::clear(JSC::JSCell*) + 16 (WeakGCPtr.h:49) 1 com.apple.JavaScriptCore 0x00000001009364af JSC::Structure::clearEnumerationCache(JSC::JSPropertyNameIterator*) + 33 (JSPropertyNameIterator.h:100) 2 com.apple.JavaScriptCore 0x00000001009362cf JSC::JSPropertyNameIterator::~JSPropertyNameIterator() + 51 (JSPropertyNameIterator.cpp:53) 3 com.apple.JavaScriptCore 0x000000010087db50 JSC::Heap::sweep() + 224 (Collector.cpp:1086) 4 com.apple.JavaScriptCore 0x000000010087f548 JSC::Heap::collectAllGarbage() + 108 (Collector.cpp:1281) 5 com.apple.WebCore 0x00000001011d8690 WebCore::collect(void*) + 44 (GCController.cpp:47) 6 com.apple.WebCore 0x00000001011d86da WebCore::GCController::gcTimerFired(WebCore::Timer<WebCore::GCController>*) + 26 (GCController.cpp:70) 7 com.apple.WebCore 0x00000001011d874d WebCore::Timer<WebCore::GCController>::fired() + 113 (Timer.h:98) 8 com.apple.WebCore 0x0000000101923286 WebCore::ThreadTimers::sharedTimerFiredInternal() + 208 (ThreadTimers.cpp:115) 9 com.apple.WebCore 0x0000000101923415 WebCore::ThreadTimers::sharedTimerFired() + 25 (ThreadTimers.cpp:91) 10 com.apple.WebCore 0x00000001017eb178 WebCore::timerFired(__CFRunLoopTimer*, void*) + 73 (SharedTimerMac.mm:87) 11 com.apple.CoreFoundation 0x00007fff887eca58 __CFRunLoopRun + 6488 12 com.apple.CoreFoundation 0x00007fff887eac2f CFRunLoopRunSpecific + 575 13 com.apple.HIToolbox 0x00007fff868cea4e RunCurrentEventLoopInMode + 333 14 com.apple.HIToolbox 0x00007fff868ce853 ReceiveNextEventCommon + 310 15 com.apple.HIToolbox 0x00007fff868ce70c BlockUntilNextEventMatchingListInMode + 59 16 com.apple.AppKit 0x00007fff8304f1f2 _DPSNextEvent + 708 17 com.apple.AppKit 0x00007fff8304eb41 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 155 18 com.apple.Safari 0x000000010000ba00 0x100000000 + 47616 19 com.apple.AppKit 0x00007fff83014747 -[NSApplication run] + 395 20 com.apple.AppKit 0x00007fff8300d468 NSApplicationMain + 364 21 com.apple.Safari 0x0000000100001a28 0x100000000 + 6696
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