[]关于ios下的错误

libGPUSupportMercury.dylib 0x000000018f074000 + 8588
1 libGPUSupportMercury.dylib gpusSubmitDataBuffers + 164
2 IOAccelerator IOAccelContextFinishResourceSysMem + 64
3 libGPUSupportMercury.dylib gldFinishObject + 128
4 GLEngine _glBufferSubData_Exec + 716
5 WebCore WebCore::WebGLRenderingContext::bufferSubData(unsigned int, long long, JSC::ArrayBuffer*, int&) + 360
6 WebCore WebCore::jsWebGLRenderingContextPrototypeFunctionBufferSubData(JSC::ExecState*) + 648
7 JavaScriptCore _llint_entry + 26144
8 JavaScriptCore _llint_entry + 24552
9 JavaScriptCore _llint_entry + 24552
10 JavaScriptCore _llint_entry + 24552
11 JavaScriptCore _llint_entry + 24552
12 JavaScriptCore _llint_entry + 24552
13 JavaScriptCore _llint_entry + 24552
14 JavaScriptCore _llint_entry + 24552
15 JavaScriptCore _llint_entry + 24552
16 JavaScriptCore _llint_entry + 24552
17 JavaScriptCore _callToJavaScript + 308
18 JavaScriptCore JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) + 48
19 JavaScriptCore JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) + 420
20 JavaScriptCore JSC::call(JSC::ExecState*, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&, JSC::JSValue*) + 92
21 WebCore WebCore::JSCallbackData::invokeCallback(JSC::JSValue, JSC::MarkedArgumentBuffer&, bool*) + 584
22 WebCore WebCore::JSRequestAnimationFrameCallback::handleEvent(double) + 180
23 WebCore WebCore::ScriptedAnimationController::serviceScriptedAnimations(double) + 428
24 WebCore WebCore::DisplayRefreshMonitor::displayDidRefresh() + 456
25 QuartzCore CA::Display::DisplayLinkItem::dispatch() + 32
26 QuartzCore CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 324
27 IOKit IODispatchCalloutFromCFMessage + 376
28 CoreFoundation ___CFMachPortPerform + 180
29 CoreFoundation ___CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 56
30 CoreFoundation ___CFRunLoopDoSource1 + 436
31 CoreFoundation ___CFRunLoopRun + 1640
32 CoreFoundation CFRunLoopRunSpecific + 396
33 WebCore RunWebThread(void*) + 468
34 libsystem_pthread.dylib __pthread_body + 164
35 libsystem_pthread.dylib __pthread_body

ios下用iframe嵌入的游戏，退到后台，然后再打开就出这个错，跟引擎有关系吗，求指点