Bug 215767 – REGRESSION: ASSERTION FAILED: m_table on inspector/animation/nameChanged.html

• Component: Web Inspector
• Status: NEW

[Hector Lopez]

inspector/animation/nameChanged.html

Test is a flaky crash according to history on macOS wk1 Debug. The first occurrence can be seen at the limit of current history at r262620 but there is no indication that revision is the cause.

History:
https://results.webkit.org/?suite=layout-tests&test=inspector%2Fanimation%2FnameChanged.html&platform=mac&flavor=wk1&limit=50000

Crash log:
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.JavaScriptCore      	0x000000010553e46e WTFCrash + 14 (Assertions.cpp:295)
1   com.apple.WebCore             	0x000000012031684b WTFCrashWithInfo(int, char const*, char const*, int) + 27
2   com.apple.WebCore             	0x00000001230f1ef9 WTF::HashTableConstIterator<WebCore::WebAnimation*, WebCore::WebAnimation*, WTF::IdentityExtractor, WTF::DefaultHash<WebCore::WebAnimation*>, WTF::HashTraits<WebCore::WebAnimation*>, WTF::HashTraits<WebCore::WebAnimation*> >::checkValidity() const + 105 (HashTable.h:217)
3   com.apple.WebCore             	0x00000001230f1e0c WTF::HashTableConstIterator<WebCore::WebAnimation*, WebCore::WebAnimation*, WTF::IdentityExtractor, WTF::DefaultHash<WebCore::WebAnimation*>, WTF::HashTraits<WebCore::WebAnimation*>, WTF::HashTraits<WebCore::WebAnimation*> >::operator++() + 28
4   com.apple.WebCore             	0x0000000123070566 WTF::HashTableConstIteratorAdapter<WTF::HashTable<WebCore::WebAnimation*, WebCore::WebAnimation*, WTF::IdentityExtractor, WTF::DefaultHash<WebCore::WebAnimation*>, WTF::HashTraits<WebCore::WebAnimation*>, WTF::HashTraits<WebCore::WebAnimation*> >, WebCore::WebAnimation*>::operator++() + 38 (HashTable.h:1571)
5   com.apple.WebCore             	0x0000000123a1e526 WebCore::InspectorAnimationAgent::enable(WTF::String&) + 358 (InspectorAnimationAgent.cpp:268)
6   com.apple.JavaScriptCore      	0x0000000106823ec7 Inspector::AnimationBackendDispatcher::enable(long, WTF::RefPtr<WTF::JSONImpl::Object, WTF::DumbPtrTraits<WTF::JSONImpl::Object> >&&) + 103 (InspectorBackendDispatchers.cpp:140)
7   com.apple.JavaScriptCore      	0x0000000106823d79 Inspector::AnimationBackendDispatcher::dispatch(long, WTF::String const&, WTF::Ref<WTF::JSONImpl::Object, WTF::DumbPtrTraits<WTF::JSONImpl::Object> >&&) + 905 (InspectorBackendDispatchers.cpp:125)

[Radar WebKit Bug Importer]

<rdar://problem/67679706>

[Hector Lopez]

Test expectation while investigated:

https://trac.webkit.org/changeset/266058/webkit

[Alexey Proskuryakov]

Not super frequent, started in mid to late July.