157781 2016-05-16 19:56:47 -0700 ARMV7K: Crash at JavaScriptCore: WTF::ScopedLambdaFunctor<bool 2016-05-16 21:01:43 -0700 1 1 1 Unclassified WebKit Web Template Framework WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 msaboff msaboff benjamin cdumez cmarcelo commit-queue webkit-bug-importer oldest_to_newest 1193677 0 msaboff 2016-05-16 19:56:47 -0700 An internal scripting tool, scripter, when compiled for ARMv7K crashes in locking code. Crash trace: scripter crash JavaScriptCore: WTF::ScopedLambdaFunctor<bool Thread 6 Crashed: 0 JavaScriptCore 0x1e33590a WTF::ScopedLambdaFunctor<bool (), bool WTF::ConditionBase::waitUntil<std::__1::unique_lock<WTF::Lock> >(std::__1::unique_lock<WTF::Lock>&, std::__1::chrono::time_point<std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<1ll, 1000000000ll> > >)::'lambda'()>::implFunction(void*) + 8 (atomic:842) 1 JavaScriptCore 0x1e3721bc WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, std::__1::chrono::time_point<std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<1ll, 1000000000ll> > >) + 1532 (ScopedLambda.h:56) 2 JavaScriptCore 0x1e335898 bool WTF::ConditionBase::waitUntil<std::__1::unique_lock<WTF::Lock> >(std::__1::unique_lock<WTF::Lock>&, std::__1::chrono::time_point<std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<1ll, 1000000000ll> > >) + 142 (ParkingLot.h:62) 3 JavaScriptCore 0x1e073d54 JSC::SlotVisitor::drainFromShared(JSC::SlotVisitor::SharedDrainMode) + 276 (Condition.h:113) 4 JavaScriptCore 0x1e176582 WTF::SharedTaskFunctor<void (), JSC::Heap::markRoots(double, void*, void*, int (&) [48])::$_0>::run() + 238 (Heap.cpp:584) 5 JavaScriptCore 0x1e371022 WTF::ParallelHelperClient::runTask(WTF::RefPtr<WTF::SharedTask<void ()> >) + 32 (ParallelHelperPool.cpp:111) 6 JavaScriptCore 0x1e3717d4 WTF::ParallelHelperPool::helperThreadBody() + 226 (ParallelHelperPool.cpp:198) 7 JavaScriptCore 0x1e06c7e0 WTF::threadEntryPoint(void*) + 138 (functional:1817) 8 JavaScriptCore 0x1e06c748 WTF::wtfThreadEntryPoint(void*) + 12 (ThreadingPthreads.cpp:164) 9 libsystem_pthread.dylib 0x1a8878a0 _pthread_body + 222 (pthread.c:695) 10 libsystem_pthread.dylib 0x1a8877c2 _pthread_start + 232 (pthread.c:738) 11 libsystem_pthread.dylib 0x1a885538 thread_start Since this only happens on this one platform, there is suspicion that this is a clang bug. 1193678 1 msaboff 2016-05-16 19:57:15 -0700 <rdar://problem/26076062> 1193682 2 279086 msaboff 2016-05-16 20:05:36 -0700 Created attachment 279086 Patch 1193704 3 279086 commit-queue 2016-05-16 20:46:37 -0700 Comment on attachment 279086 Patch Rejecting attachment 279086 from commit-queue. Failed to run "['/Volumes/Data/EWS/WebKit/Tools/Scripts/webkit-patch', '--status-host=webkit-queues.webkit.org', '--bot-id=webkit-cq-02', 'validate-changelog', '--check-oops', '--non-interactive', 279086, '--port=mac']" exit_code: 1 cwd: /Volumes/Data/EWS/WebKit ChangeLog entry in Source/WTF/ChangeLog contains OOPS!. Full output: http://webkit-queues.webkit.org/results/1334344 1193712 4 msaboff 2016-05-16 21:01:43 -0700 Committed r200993: <http://trac.webkit.org/changeset/200993> 279086 2016-05-16 20:05:36 -0700 2016-05-16 20:46:37 -0700 Patch 157781.patch text/plain 5510 msaboff SW5kZXg6IFNvdXJjZS9XVEYvQ2hhbmdlTG9nCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIFNvdXJjZS9XVEYvQ2hh bmdlTG9nCShyZXZpc2lvbiAyMDA5ODkpCisrKyBTb3VyY2UvV1RGL0NoYW5nZUxvZwkod29ya2lu ZyBjb3B5KQpAQCAtMSwzICsxLDI1IEBACisyMDE2LTA1LTE2ICBNaWNoYWVsIFNhYm9mZiAgPG1z YWJvZmZAYXBwbGUuY29tPgorCisgICAgICAgIE5lZWQgYSBzaG9ydCBkZXNjcmlwdGlvbiAoT09Q UyEpLgorICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9MTU3 NzgxCisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BTISkuCisKKyAgICAgICAgUmVw bGFjZWQgdXNlIG9mIFNjb3BlZExhbWJkYSBpbiBsb2NraW5nIGNvZGUgd2l0aCBzdGQ6OmZ1bmN0 aW9uIG11Y2ggYXMgaXQgd2FzCisgICAgICAgIGJlZm9yZSBjaGFuZ2Ugc2V0IDE5OTc2MCB0byB3 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