What should I do about this random iPhone crash in WebCore?

This happens at random intervals. Any ideas would be appreciated.

Obviously it has to do with the UIWebView, but not sure what's going on.

Thread 1 Crashed:
0   WebCore                             0x0006eb56 WebCore::ScrollView::repaintContentRectangle(WebCore::IntRect const&, bool) + 10
1   WebCore    开发者_Go百科                         0x0005ad88 WebCore::FrameView::doDeferredRepaints() + 32
2   WebCore                             0x0005ad00 WebCore::FrameView::endDeferredRepaints() + 104
3   WebCore                             0x00050818 WebCore::FrameView::layout(bool) + 844
4   WebCore                             0x000504c4 WebCore::FrameView::layoutTimerFired(WebCore::Timer<WebCore::FrameView>*) + 4
5   WebCore                             0x000504ae WebCore::Timer<WebCore::FrameView>::fired() + 26
6   WebCore                             0x000502c6 WebCore::TimerBase::fireTimers(double, WTF::Vector<WebCore::TimerBase*, 0ul> const&) + 102
7   WebCore                             0x0004fd1e WebCore::TimerBase::sharedTimerFired() + 66
8   WebCore                             0x0004fcb2 WebCore::timerFired(__CFRunLoopTimer*, void*) + 34
9   CoreFoundation                   0x00056bac CFRunLoopRunSpecific + 2112
10  CoreFoundation                   0x00056356 CFRunLoopRunInMode + 42
11  WebCore                            0x0005d6b2 RunWebThread(void*) + 286
12  libSystem.B.dylib                0x0002490a _pthread_body + 10

Report it to Apple. And explain them how you are using the WebView. Or explain us here, maybe you are doing something wrong.

Also check if this is reproducable on several different SDK Simulator versions. This may help to detect if the error is on your side or is in the SDK.