Bug 216848 – REGRESSION: (r267402?) [ iOS Debug ] 50+ tests crashing

• Status: NEW
• Component: Media

[Truitt Savell]

Currently iOS Debug is seeing 50+ layout test crashes.

https://build.webkit.org/builders/Apple%20iOS%2013%20Simulator%20Debug%20WK2%20%28Tests%29/builds/5677

It looks like this started after r267403 but I am not certain because the build history cannot show a clean regression point due to some other failures. 

Crash log of compositing/geometry/clipping-foreground.html as an example
https://build.webkit.org/results/Apple%20iOS%2013%20Simulator%20Debug%20WK2%20(Tests)/r267403%20(5677)/compositing/geometry/clipping-foreground-crash-log.txt

History:
https://results.webkit.org/?suite=layout-tests&test=compositing%2Fgeometry%2Fclipping-foreground.html

[Radar WebKit Bug Importer]

<rdar://problem/69391791>

[Ryan Haddad]

SHOULD NEVER BE REACHED
/Volumes/Data/slave/ios-simulator-13-debug/build/Source/WebCore/platform/audio/ios/MediaSessionHelperIOS.mm(218) : virtual void MediaSessionHelperiOS::stopMonitoringWirelessRoutes()
1   0x14dc3fad9 WTFCrash
2   0x15558b80b WTFCrashWithInfo(int, char const*, char const*, int)
3   0x1559f4566 MediaSessionHelperiOS::stopMonitoringWirelessRoutes()
4   0x1559fb7ec WebCore::MediaSessionManageriOS::configureWireLessTargetMonitoring()
5   0x158652b2f WebCore::MediaElementSession::clientDataBufferingTimerFired()
6   0x158661a57 decltype(*(std::1::forward<WebCore::MediaElementSession*&>(fp0)).*fp()) std::1::__invoke<void (WebCore::MediaElementSession::*&)(), WebCore::MediaElementSession*&, void>(void (WebCore::MediaElementSession::*&)(), WebCore::MediaElementSession*&)
7   0x1586619d0 std::1::bind_return<void (WebCore::MediaElementSession::*)(), std::1::tuple<WebCore::MediaElementSession*>, std::1::tuple<>, __is_valid_bind_return<void (WebCore::MediaElementSession::*)(), std::1::tuple<WebCore::MediaElementSession*>, std::1::tuple<> >::value>::type std::1::apply_functor<void (WebCore::MediaElementSession::*)(), std::1::tuple<WebCore::MediaElementSession*>, 0ul, std::1::tuple<> >(void (WebCore::MediaElementSession::*&)(), std::1::tuple<WebCore::MediaElementSession*>&, std::1::__tuple_indices<0ul>, std::__1::tuple<>&&)
8   0x158661989 std::1::bind_return<void (WebCore::MediaElementSession::*)(), std::1::tuple<WebCore::MediaElementSession*>, std::1::tuple<>, __is_valid_bind_return<void (WebCore::MediaElementSession::*)(), std::1::tuple<WebCore::MediaElementSession*>, std::1::tuple<> >::value>::type std::1::bind<void (WebCore::MediaElementSession::*&)(), WebCore::MediaElementSession*>::operator()<>()
9   0x15866192e WTF::Detail::CallableWrapper<std::1::bind<void (WebCore::MediaElementSession::*&)(), WebCore::MediaElementSession*>, void>::call()
10  0x1555a1612 WTF::Function<void ()>::operator()() const

[Ryan Haddad]

<rdar://problem/69391553>