[Webkit-unassigned] [Bug 222998] New: REGRESSION: [BigSur] ASSERT NOT REACHED n WebCore::ResourceLoadPriority WebCore::toResourceLoadPriority

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=222998

            Bug ID: 222998
           Summary: REGRESSION: [BigSur] ASSERT NOT REACHED n
                    WebCore::ResourceLoadPriority
                    WebCore::toResourceLoadPriority
           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
                CC: webkit-bot-watchers-bugzilla at group.apple.com,
                    webkit-bug-importer at group.apple.com

Seeing the following assertion failure on Big Sur Debug bots, causing tests to exit early: 

SHOULD NEVER BE REACHED
/Volumes/Data/worker/bigsur-debug/build/Source/WebCore/platform/network/cf/ResourceRequestCFNet.h(62) : WebCore::ResourceLoadPriority WebCore::toResourceLoadPriority(CFURLRequestPriority)
1   0x142581769 WTFCrash
2   0x12602143b WTFCrashWithInfo(int, char const*, char const*, int)
3   0x128207fca WebCore::toResourceLoadPriority(long)
4   0x12820788b WebCore::ResourceRequest::doUpdateResourceRequest()
5   0x12a7c2e67 WebCore::ResourceRequestBase::updateResourceRequest(WebCore::HTTPBodyUpdatePolicy) const
6   0x12a7c2a74 WebCore::ResourceRequestBase::setPriority(WebCore::ResourceLoadPriority)
7   0x12b51da8d WebCore::WebCoreAVFResourceLoader::startLoading()
8   0x126423fee WebCore::MediaPlayerPrivateAVFoundationObjC::shouldWaitForLoadingOfResource(AVAssetResourceLoadingRequest*)
9   0x12646e1c0 -[WebCoreAVFLoaderDelegate resourceLoader:shouldWaitForLoadingOfRequestedResource:]::$_15::operator()()::'lambda'()::operator()() const
10  0x12646e06e WTF::Detail::CallableWrapper<-[WebCoreAVFLoaderDelegate resourceLoader:shouldWaitForLoadingOfRequestedResource:]::$_15::operator()()::'lambda'(), void>::call()
11  0x126036422 WTF::Function<void ()>::operator()() const
12  0x1263f1765 WebCore::GenericTaskQueue<WebCore::Timer>::enqueueTask(WTF::Function<void ()>&&)::'lambda'()::operator()() const
13  0x1263f159e WTF::Detail::CallableWrapper<WebCore::GenericTaskQueue<WebCore::Timer>::enqueueTask(WTF::Function<void ()>&&)::'lambda'(), void>::call()
14  0x126036422 WTF::Function<void ()>::operator()() const
15  0x12a1fc82f WebCore::TaskDispatcher<WebCore::Timer>::dispatchOneTask()
16  0x12a1fc505 WebCore::TaskDispatcher<WebCore::Timer>::sharedTimerFired()
17  0x12a203e51 WebCore::TaskDispatcher<WebCore::Timer>::sharedTimer()::$_2::operator()() const
18  0x12a203e0e WTF::Detail::CallableWrapper<WebCore::TaskDispatcher<WebCore::Timer>::sharedTimer()::$_2, void>::call()
19  0x126036422 WTF::Function<void ()>::operator()() const
20  0x12607974e WebCore::Timer::fired()
21  0x12a25ffa4 WebCore::ThreadTimers::sharedTimerFiredInternal()
22  0x12a26a481 WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0::operator()() const
23  0x12a26a42e WTF::Detail::CallableWrapper<WebCore::ThreadTimers::setSharedTimer(WebCore::SharedTimer*)::$_0, void>::call()
24  0x126036422 WTF::Function<void ()>::operator()() const
25  0x12a217a5b WebCore::MainThreadSharedTimer::fired()
26  0x12a2e8176 WebCore::timerFired(__CFRunLoopTimer*, void*)
27  0x7fff2047990d __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__
28  0x7fff204793e8 __CFRunLoopDoTimer
29  0x7fff20478f42 __CFRunLoopDoTimers
30  0x7fff2045f57f __CFRunLoopRun
31  0x7fff2045e6ce CFRunLoopRunSpecific

https://build.webkit.org/results/Apple-BigSur-Debug-WK2-Tests/r274171%20(608)/results.html

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