[Webkit-unassigned] [Bug 188393] New: ASSERTION FAILED: m_caches.isEmpty() || !m_pendingInitializationCallbacks.isEmpty() in WebKit::CacheStorage::Caches::clearMemoryRepresentation()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=188393

            Bug ID: 188393
           Summary: ASSERTION FAILED: m_caches.isEmpty() ||
                    !m_pendingInitializationCallbacks.isEmpty() in
                    WebKit::CacheStorage::Caches::clearMemoryRepresentatio
                    n()
           Product: WebKit
           Version: Other
          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

Created attachment 346741

  --> https://bugs.webkit.org/attachment.cgi?id=346741&action=review

crash log

The following assertion failure is intermittently seen on iOS Simulator Debug WK2 with layout test imported/w3c/web-platform-tests/service-workers/service-worker/fetch-event.https.html:

ASSERTION FAILED: m_caches.isEmpty() || !m_pendingInitializationCallbacks.isEmpty()
/Volumes/Data/slave/ios-simulator-11-debug/build/Source/WebKit/NetworkProcess/cache/CacheStorageEngineCaches.cpp(551) : void WebKit::CacheStorage::Caches::clearMemoryRepresentation()
1   0x1174d44b9 WTFCrash
2   0x10ad50a8e WebKit::CacheStorage::Caches::clearMemoryRepresentation()
3   0x10ad5bf7b WebKit::CacheStorage::Caches::clear(WTF::CompletionHandler<void ()>&&)::$_6::operator()()
4   0x10ad5be79 WTF::Function<void ()>::CallableWrapper<WebKit::CacheStorage::Caches::clear(WTF::CompletionHandler<void ()>&&)::$_6>::call()
5   0x10ac96c9b WTF::Function<void ()>::operator()() const
6   0x10af2f8e0 WebKit::NetworkCache::Storage::clear(WTF::String const&, WTF::WallTime, WTF::Function<void ()>&&)::$_11::operator()()::'lambda'()::operator()() const
7   0x10af2f7f9 WTF::Function<void ()>::CallableWrapper<WebKit::NetworkCache::Storage::clear(WTF::String const&, WTF::WallTime, WTF::Function<void ()>&&)::$_11::operator()()::'lambda'()>::call()
8   0x1174f960b WTF::Function<void ()>::operator()() const
9   0x11754c603 WTF::RunLoop::performWork()
10  0x11754cf04 WTF::RunLoop::performWork(void*)
11  0x10fc4abb1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__
12  0x10fc2f4af __CFRunLoopDoSources0
13  0x10fc2ea6f __CFRunLoopRun
14  0x10fc2e30b CFRunLoopRunSpecific
15  0x10a639b4a -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
16  0x10a639a25 -[NSRunLoop(NSRunLoop) run]
17  0x1118f88c9 _xpc_objc_main
18  0x1118fad73 xpc_main
19  0x10a58ddce main
20  0x111540955 start
21  0x1

https://build.webkit.org/results/Apple%20iOS%2011%20Simulator%20Debug%20WK2%20(Tests)/r233679%20(5307)/results.html

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