Created attachment 289340 [details] full crash report Hi. Since iOS 10 came out, we started to see several crashes in WebKit's IPC network component. I didn't see it this crash in iOS 9 if I recall. As known, WKWebView renders and loads content in a separate process, thus content loading problems only cause the WKWebView process to crash and we get a delegate call to our app. In this case, the app itself crashed as well (after we got to see for a split second that the wkwebview content process crashed) in thread 0. This is the stack trace of thread 0: (attached is a full stack trace) Thread 0 Crashed: 0 WebKit 0x2712426e IPC::Connection::markCurrentlyDispatchedMessageAsInvalid() + 2 1 WebKit 0x27178eeb WebKit::NetworkProcessProxy::canAuthenticateAgainstProtectionSpace(unsigned long long, unsigned long long, unsigned long long, WebCore::ProtectionSpace const&) + 36 2 WebKit 0x2717a815 void IPC::callMemberFunctionImpl<WebKit::NetworkProcessProxy, void (WebKit::NetworkProcessProxy::*)(unsigned long long, unsigned long long, unsigned long long, WebCore::ProtectionSpace const&), std::__1::tuple<unsigned long long, unsigned long long, unsigned long long, WebCore::ProtectionSpace>, 0ul, 1ul, 2ul, 3ul>(WebKit::NetworkProcessProxy*, void (WebKit::NetworkProcessProxy::*)(unsigned long long, unsigned long long, unsigned long long, WebCore::ProtectionSpace const&), std::__1::tuple<unsigned long long, unsigned long long, unsigned long long, WebCore::ProtectionSpace>&&, std::__1::integer_sequence<unsigned long, 0ul, 1ul, 2ul, 3ul>) + 52 3 WebKit 0x2717a517 void IPC::handleMessage<Messages::NetworkProcessProxy::CanAuthenticateAgainstProtectionSpace, WebKit::NetworkProcessProxy, void (WebKit::NetworkProcessProxy::*)(unsigned long long, unsigned long long, unsigned long long, WebCore::ProtectionSpace const&)>(IPC::MessageDecoder&, WebKit::NetworkProcessProxy*, void (WebKit::NetworkProcessProxy::*)(unsigned long long, unsigned long long, unsigned long long, WebCore::ProtectionSpace const&)) + 76 4 WebKit 0x27123ccb IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::MessageDecoder, std::__1::default_delete<IPC::MessageDecoder> >) + 106 5 WebKit 0x27125c5d IPC::Connection::dispatchOneMessage() + 158 6 JavaScriptCore 0x22e52ce7 WTF::RunLoop::performWork() + 112 7 JavaScriptCore 0x22e52e3b WTF::RunLoop::performWork(void*) + 20 8 CoreFoundation 0x1f025c8b __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 10 9 CoreFoundation 0x1f025795 __CFRunLoopDoSources0 + 436 10 CoreFoundation 0x1f023a6b __CFRunLoopRun + 760 11 CoreFoundation 0x1ef73073 CFRunLoopRunSpecific + 484 12 CoreFoundation 0x1ef72e81 CFRunLoopRunInMode + 102 13 GraphicsServices 0x2071bbfd GSEventRunModal + 154 14 UIKit 0x24113ccf -[UIApplication _run] + 572 15 UIKit 0x2410e401 UIApplicationMain + 148 16 Power BI 0x001de6ab UIApplicationMain (ApplicationHooks.m:47) 17 Power BI 0x003d5657 main (main.mm:15) 18 ??? 0x1e73e50b 0x0 + 0
Thank you for the report! This crash log is for the app. Do you also have a crash log for the WebContent process? Ideally, please file it as a separate bug, and relate it to this one.
<rdar://problem/28387190>
Created attachment 289360 [details] jetsam event for webcontent process
Thanks for the quick reply! I didn't find a crash log for the content process, but I did find something called a "JetsamEvent" in the iPad's "Diagnostics & Usage" saying something about page shortage regarding the webcontent process. I attached the full event to this bug. Should I open another bug with this event?
These two problems would need to be fixed separately, so yes, we'll need a separate bug to fix the jetsam.
Done. Filed https://bugs.webkit.org/show_bug.cgi?id=162334 for that manner and connected the bugs. Thanks!
(In reply to erezg from comment #6) > Done. Filed https://bugs.webkit.org/show_bug.cgi?id=162334 for that manner > and connected the bugs. > Thanks! Hello, I think I have the similar crash logs from the users of my app on iOS 11. I've seen that you've mentioned in the https://bugs.webkit.org/show_bug.cgi?id=162334 that the crash occurs inside WKWebView web pages with a complex SVG content. Could you please provide an example URLs of such pages? I'd like to reproduce an issue if it's still possible.