Created attachment 318975 [details] serious bug on ios10.3 # OS Version: 10.3.3 (14G60) # Device: iPhone 6s # RAM Free: 4.2% # Disk Free: 15.7% #21. Crashed: WebCore: LocalStorage 0 WebKitLegacy 0x18a00a828 WebKit::StorageAreaImpl::importItems(WTF::HashMap<WTF::String, WTF::String, WTF::StringHash, WTF::HashTraits<WTF::String>, WTF::HashTraits<WTF::String> > const&) + 50 1 WebKitLegacy 0x18a00bc6c WebKit::StorageAreaSync::performImport() + 336 2 WebKitLegacy 0x18a00f370 WebCore::StorageThread::threadEntryPoint() + 108 3 JavaScriptCore 0x1880cef7c WTF::threadEntryPoint(void*) + 212 4 JavaScriptCore 0x1880cee8c WTF::wtfThreadEntryPoint(void*) + 24 5 libsystem_pthread.dylib 0x1832b168c _pthread_body + 240 6 libsystem_pthread.dylib 0x1832b159c _pthread_body + 282 7 libsystem_pthread.dylib 0x1832aecb4 thread_start + 4
this crash bug seems only to happen on ios10.3 UIWebView
We also meet such crash for UIWebView since iOS 10.3.0 randomly in Fabric. It seems there is any thread related issue like race condition in storage thread, which cause m_storageMap of StorageAreaImpl corrupted
Apple employees: see also rdar://problem/13458384
(In reply to Alexey Proskuryakov from comment #3) > Apple employees: see also rdar://problem/13458384 <rdar://problem/33056913>
Does the crash happens due to webkit source bug? I want to get some ideas to solove the crash.