165166 2016-11-29 15:39:03 -0800 ASSERTION FAILED: m_transactionOperationsInProgressQueue.first() == &operation 2016-11-30 11:31:51 -0800 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED CONFIGURATION CHANGED P2 Normal --- 160306 1 ryanhaddad webkit-unassigned beidson oldest_to_newest 1254526 0 ryanhaddad 2016-11-29 15:39:03 -0800 Seen with LayoutTest storage/indexeddb/modern/handle-user-delete.html https://build.webkit.org/results/Apple%20El%20Capitan%20Debug%20WK2%20(Tests)/r209088%20(9640)/results.html ASSERTION FAILED: m_transactionOperationsInProgressQueue.first() == &operation /Volumes/Data/slave/elcapitan-debug/build/Source/WebCore/Modules/indexeddb/IDBTransaction.cpp(1293) : void WebCore::IDBTransaction::operationCompletedOnClient(IDBClient::TransactionOperation &) 1 0x10bb6eae0 WTFCrash 2 0x10f10410d WebCore::IDBTransaction::operationCompletedOnClient(WebCore::IDBClient::TransactionOperation&) 3 0x10f108bce WebCore::IDBClient::TransactionOperation::doComplete(WebCore::IDBResultData const&) 4 0x10f0fac5f WebCore::IDBTransaction::completedOperationTimerFired() 5 0x10f113068 void std::__1::__invoke_void_return_wrapper<void>::__call<std::__1::__bind<void (WebCore::IDBTransaction::*&)(), WebCore::IDBTransaction*>&>(std::__1::__bind<void (WebCore::IDBTransaction::*&)(), WebCore::IDBTransaction*>&&&) 6 0x10f112f3c std::__1::__function::__func<std::__1::__bind<void (WebCore::IDBTransaction::*&)(), WebCore::IDBTransaction*>, std::__1::allocator<std::__1::__bind<void (WebCore::IDBTransaction::*&)(), WebCore::IDBTransaction*> >, void ()>::operator()() 7 0x10e27fd5a std::__1::function<void ()>::operator()() const 8 0x10e27fc6c WebCore::Timer::fired() 9 0x110ba7eea WebCore::ThreadTimers::sharedTimerFiredInternal() 10 0x110ba9131 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const 11 0x110ba90fd void std::__1::__invoke_void_return_wrapper<void>::__call<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0&>(WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0&&&) 12 0x110ba909c std::__1::__function::__func<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, std::__1::allocator<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0>, void ()>::operator()() 13 0x10e27fd5a std::__1::function<void ()>::operator()() const 14 0x10fe77d2f WebCore::MainThreadSharedTimer::fired() 15 0x10fe78139 WebCore::timerFired(__CFRunLoopTimer*, void*) 16 0x7fff97244b94 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ 17 0x7fff97244823 __CFRunLoopDoTimer 18 0x7fff9724437a __CFRunLoopDoTimers 19 0x7fff9723b871 __CFRunLoopRun 20 0x7fff9723aed8 CFRunLoopRunSpecific 21 0x7fff968fc935 RunCurrentEventLoopInMode 22 0x7fff968fc76f ReceiveNextEventCommon 23 0x7fff968fc5af _BlockUntilNextEventMatchingListInModeWithFilter 24 0x7fff88577df6 _DPSNextEvent 25 0x7fff88577226 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] 26 0x7fff8856bd80 -[NSApplication run] 27 0x7fff88535368 NSApplicationMain 28 0x7fff8db63194 _xpc_objc_main 29 0x7fff8db61bbe xpc_main 30 0x106f4a080 main 31 0x7fff895dc5ad start 1254527 1 ryanhaddad 2016-11-29 15:39:35 -0800 This assert was added with https://trac.webkit.org/changeset/209086 1254589 2 beidson 2016-11-29 17:18:02 -0800 Cannot repro locally. *sigh* 1254849 3 beidson 2016-11-30 10:55:53 -0800 The patch landed in https://trac.webkit.org/changeset/209132 might have had an effect here. THere's not enough information to make much more of a targeted exploration on this. 1254865 4 beidson 2016-11-30 11:31:51 -0800 Don't think this will happen anymore. Please file a new one if it does!