我们有一个带有UIWebView的混合iOS应用程序,它可以加载一个相当复杂的网上商店(一堆跟踪像素,javasript,异步行为).自iOS 11.3推出以来,我们看到许多崩溃似乎来自UIWebView或相关组件.堆栈跟踪看起来像这样
Crashed: WebThread 0 WebCore 0x18b7b0d98 WebCore::Page::sessionID() const + 162 1 WebKitLegacy 0x18be91204 WebFrameNetworkingContext::storageSession() const + 24 2 WebCore 0x18ad818bc WebCore::ResourceHandle::willSendRequest(WebCore::ResourceRequest&&,WebCore::ResourceResponse&&,WTF::CompletionHandler<void (WebCore::ResourceRequest&&)>&&) + 1012 3 WebCore 0x18ad86f88 WTF::Function<void ()>::CallableWrapper<-[WebCoreResourceHandleAsOperationQueueDelegate connection:willSendRequest:redirectResponse:]::$_1>::call() + 208 4 JavaScriptCore 0x1892157d4 WTF::dispatchFunctionsFromMainThread() + 344 5 Foundation 0x1830fe0ec __NSThreadPerformPerform + 340 6 CoreFoundation 0x18265b404 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24 7 CoreFoundation 0x18265ac2c __CFRunLoopDoSources0 + 276 8 CoreFoundation 0x18265879c __CFRunLoopRun + 1204 9 CoreFoundation 0x182578da8 CFRunLoopRunSpecific + 552 10 WebCore 0x18a805dcc RunWebThread(void*) + 592 11 libsystem_pthread.dylib 0x1822d9220 _pthread_body + 272 12 libsystem_pthread.dylib 0x1822d9110 _pthread_body + 290 13 libsystem_pthread.dylib 0x1822d7b10 thread_start + 4
解决方法
我通过在JavaScriptCore(WebKit)中禁用JIT解决了这个问题.
我把它放在我的AppDelegate中：
setenv("JSC_useJIT","false",0);
我希望这将有所帮助.
亲切的问候,约什.
