[Webkit-unassigned] [Bug 164887] New: ASSERTION FAILED: isMainThread() in WebCore::Node::ref()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=164887

            Bug ID: 164887
           Summary: ASSERTION FAILED: isMainThread() in
                    WebCore::Node::ref()
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ryanhaddad at apple.com

Encountered with LayoutTest storage/websql/multiple-transactions-on-different-handles.html on El Capitan and Sierra Debug WK1

https://build.webkit.org/results/Apple%20El%20Capitan%20Debug%20WK1%20(Tests)/r208857%20(9825)/results.html

ASSERTION FAILED: isMainThread()
/Volumes/Data/slave/elcapitan-debug/build/Source/WebCore/dom/Node.h(706) : void WebCore::Node::ref()
1   0x102b50440 WTFCrash
2   0x107f636b5 WebCore::Node::ref()
3   0x1086bc455 WebCore::Document::refScriptExecutionContext()
4   0x1086bc57c non-virtual thunk to WebCore::Document::refScriptExecutionContext()
5   0x1083a4e89 WebCore::ScriptExecutionContext::ref()
6   0x1085d06d3 WTF::Ref<WebCore::ScriptExecutionContext>::Ref(WebCore::ScriptExecutionContext&)
7   0x1085cabfd WTF::Ref<WebCore::ScriptExecutionContext>::Ref(WebCore::ScriptExecutionContext&)
8   0x1085cae1f WTF::Ref<WebCore::ScriptExecutionContext>::copyRef() const
9   0x1085c3d74 WebCore::Database::~Database()
10  0x1085c3f65 WebCore::Database::~Database()
11  0x1085d41d9 WTF::ThreadSafeRefCounted<WebCore::Database>::deref() const
12  0x1085e0864 void WTF::derefIfNotNull<WebCore::Database>(WebCore::Database*)
13  0x1085e0823 WTF::RefPtr<WebCore::Database>::~RefPtr()
14  0x1085dcee5 WTF::RefPtr<WebCore::Database>::~RefPtr()
15  0x1085e3cb4 WTF::HashTable<WTF::RefPtr<WebCore::Database>, WTF::RefPtr<WebCore::Database>, WTF::IdentityExtractor, WTF::PtrHash<WTF::RefPtr<WebCore::Database> >, WTF::HashTraits<WTF::RefPtr<WebCore::Database> >, WTF::HashTraits<WTF::RefPtr<WebCore::Database> > >::deallocateTable(WTF::RefPtr<WebCore::Database>*, unsigned int)
ERROR: Unable to turn on incremental auto-vacuum (0 not an error)
/Volumes/Data/slave/elcapitan-debug/build/Source/WebCore/Modules/webdatabase/Database.cpp(355) : ExceptionOr<void> WebCore::Database::performOpenAndVerify(bool)
16  0x1085e3a8e WTF::HashTable<WTF::RefPtr<WebCore::Database>, WTF::RefPtr<WebCore::Database>, WTF::IdentityExtractor, WTF::PtrHash<WTF::RefPtr<WebCore::Database> >, WTF::HashTraits<WTF::RefPtr<WebCore::Database> >, WTF::HashTraits<WTF::RefPtr<WebCore::Database> > >::~HashTable()
17  0x1085e3a45 WTF::HashTable<WTF::RefPtr<WebCore::Database>, WTF::RefPtr<WebCore::Database>, WTF::IdentityExtractor, WTF::PtrHash<WTF::RefPtr<WebCore::Database> >, WTF::HashTraits<WTF::RefPtr<WebCore::Database> >, WTF::HashTraits<WTF::RefPtr<WebCore::Database> > >::~HashTable()
18  0x1085e3a25 WTF::HashSet<WTF::RefPtr<WebCore::Database>, WTF::PtrHash<WTF::RefPtr<WebCore::Database> >, WTF::HashTraits<WTF::RefPtr<WebCore::Database> > >::~HashSet()
19  0x1085e32a5 WTF::HashSet<WTF::RefPtr<WebCore::Database>, WTF::PtrHash<WTF::RefPtr<WebCore::Database> >, WTF::HashTraits<WTF::RefPtr<WebCore::Database> > >::~HashSet()
20  0x1085e2407 WebCore::DatabaseThread::databaseThread()
21  0x1085e1f4d WebCore::DatabaseThread::databaseThreadStart(void*)
22  0x102bc9c49 WTF::createThread(void (*)(void*), void*, char const*)::$_0::operator()() const
23  0x102bc9c1d void std::__1::__invoke_void_return_wrapper<void>::__call<WTF::createThread(void (*)(void*), void*, char const*)::$_0&>(WTF::createThread(void (*)(void*), void*, char const*)::$_0&&&)
24  0x102bc9bbc std::__1::__function::__func<WTF::createThread(void (*)(void*), void*, char const*)::$_0, std::__1::allocator<WTF::createThread(void (*)(void*), void*, char const*)::$_0>, void ()>::operator()()
25  0x1020c19ea std::__1::function<void ()>::operator()() const
26  0x102bc881e WTF::threadEntryPoint(void*)
27  0x102bca2c1 WTF::wtfThreadEntryPoint(void*)
28  0x7fff92d4599d _pthread_body
29  0x7fff92d4591a _pthread_body
30  0x7fff92d43351 thread_start

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