[ iOS Debug ] TestWebKitAPI.ResourceLoadStatistics.GrandfatherCallback is failing

TestWebKitAPI.ResourceLoadStatistics.GrandfatherCallback

Is failing on iOS 15 Debug.

History: https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.ResourceLoadStatistics.GrandfatherCallback

https://build.webkit.org/#/builders/267/builds/371/steps/17/logs/stdio

Stdio:

Failed
    TestWebKitAPI.ResourceLoadStatistics.GrandfatherCallback
        2021-11-03 01:13:42.527 TestWebKitAPI[5299:59766207] Writing analzed variants.
        Failed to connect to mach service com.apple.webkit.adattributiond.service, reason: failed at lookup with error 3 - No such process
        SHOULD NEVER BE REACHED
        /Volumes/Data/worker/ios-simulator-15-debug/build/Source/WebKit/Platform/IPC/cocoa/DaemonConnectionCocoa.mm(101) : auto WebKit::Daemon::ConnectionToMachService<WebKit::PCM::ConnectionTraits>::sendWithReply(typename ConnectionTraits::MessageType, WebKit::Daemon::EncodedMessage &&, CompletionHandler<void (WebKit::Daemon::EncodedMessage &&)> &&)::(anonymous class)::operator()(xpc_object_t) [Traits = WebKit::PCM::ConnectionTraits]
        1   0x139d13349 WTFCrash
        2   0x11eabddfb WTFCrashWithInfo(int, char const*, char const*, int)
        3   0x11f6cd399 WebKit::Daemon::ConnectionToMachService<WebKit::PCM::ConnectionTraits>::sendWithReply(WebKit::PCM::MessageType, WTF::Vector<unsigned char, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&, WTF::CompletionHandler<void (WTF::Vector<unsigned char, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&)>&&) const::'lambda'(NSObject<OS_xpc_object>*)::operator()(NSObject<OS_xpc_object>*)
        4   0x11f6cd271 WTF::Detail::CallableWrapper<WebKit::Daemon::ConnectionToMachService<WebKit::PCM::ConnectionTraits>::sendWithReply(WebKit::PCM::MessageType, WTF::Vector<unsigned char, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&, WTF::CompletionHandler<void (WTF::Vector<unsigned char, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&)>&&) const::'lambda'(NSObject<OS_xpc_object>*), void, NSObject<OS_xpc_object>*>::call(NSObject<OS_xpc_object>*)
        5   0x11f6c6d27 WTF::Function<void (NSObject<OS_xpc_object>*)>::operator()(NSObject<OS_xpc_object>*) const
        6   0x11f6c6b87 WTF::CompletionHandler<void (NSObject<OS_xpc_object>*)>::operator()(NSObject<OS_xpc_object>*)
        7   0x11f6c67ed WebKit::Daemon::Connection::sendWithReply(NSObject<OS_xpc_object>*, WTF::CompletionHandler<void (NSObject<OS_xpc_object>*)>&&) const::$_7::operator()(NSObject<OS_xpc_object>*)
        8   0x11f6c6a15 WTF::BlockPtr<void (NSObject<OS_xpc_object>*)> WTF::BlockPtr<void (NSObject<OS_xpc_object>*)>::fromCallable<WebKit::Daemon::Connection::sendWithReply(NSObject<OS_xpc_object>*, WTF::CompletionHandler<void (NSObject<OS_xpc_object>*)>&&) const::$_7>(WebKit::Daemon::Connection::sendWithReply(NSObject<OS_xpc_object>*, WTF::CompletionHandler<void (NSObject<OS_xpc_object>*)>&&) const::$_7)::'lambda'(void*, NSObject<OS_xpc_object>*)::operator()(void*, NSObject<OS_xpc_object>*) const
        9   0x11f6c69cd WTF::BlockPtr<void (NSObject<OS_xpc_object>*)> WTF::BlockPtr<void (NSObject<OS_xpc_object>*)>::fromCallable<WebKit::Daemon::Connection::sendWithReply(NSObject<OS_xpc_object>*, WTF::CompletionHandler<void (NSObject<OS_xpc_object>*)>&&) const::$_7>(WebKit::Daemon::Connection::sendWithReply(NSObject<OS_xpc_object>*, WTF::CompletionHandler<void (NSObject<OS_xpc_object>*)>&&) const::$_7)::'lambda'(void*, NSObject<OS_xpc_object>*)::__invoke(void*, NSObject<OS_xpc_object>*)
        10  0x101e130f1 _xpc_connection_reply_callout
        11  0x101e0853c _xpc_connection_call_reply_async
        12  0x101ad2abc _dispatch_client_callout3
        13  0x101aedc95 _dispatch_mach_msg_async_reply_invoke
        14  0x101adfd3d _dispatch_main_queue_callback_4CF
        15  0x1009cf85d __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
        16  0x1009ca0ba __CFRunLoopRun
        17  0x1009c9103 CFRunLoopRunSpecific
        18  0x10131141c -[NSRunLoop(NSRunLoop) runMode:beforeDate:]
        19  0x101311638 -[NSRunLoop(NSRunLoop) run]
        20  0x101e1005f _xpc_objc_main
        21  0x101e12050 xpc_main
        22  0x11f9ef26a WebKit::XPCServiceMain(int, char const**)
        23  0x12135645b WKXPCServiceMain
        24  0x10048bd42 main
        25  0x10049de1e
        26  0x1
        27  0x1
        LEAK: 1 WebProcessPool
        
        /Volumes/Data/worker/ios-simulator-15-debug/build/Tools/TestWebKitAPI/Tests/WebKitCocoa/ResourceLoadStatistics.mm:98
        Value of: [message isEqualToString:@"Grandfathered"]
          Actual: false
        Expected: true

Looking at the history, it started somewhere between r284661 and 284651.

[Radar WebKit Bug Importer]

<rdar://problem/84984801>

[Alex Christensen]

Created attachment 443232 [details]
Patch

[EWS]

Committed r285230 (243851@main): <https://commits.webkit.org/243851@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 443232 [details].