私のアプリは、基本的に WebView ベースのアプリであるため、UIWebViews を広範囲に使用しています。
アプリの左側には、Facebook や Path アプリと同様のスライド アウト メニューがあります。これらの表の行の 1 つを選択すると、メインの Web ビューがスライドして戻り、URL が読み込まれます。
Webthread から WebCore がランダムにクラッシュするのを見たことがありますが、それを解決する方法がまったくわかりません。ゾンビとメモリの割り当てをテストしましたが、アプリは常に 3 ～ 4 MB のライブ バイト内にとどまります。
関連性があるかどうかはわかりませんが、webview がそのページを読み込むときに重要な「フック」があります。たとえば、shouldStartLoad 内で、特定の URL をチェックしてから、ページで JS 関数を呼び出します。これがクラッシュの原因になるかどうかはわかりません。
クラッシュ ログは、Webcore クラッシュのさまざまな領域を示しています。以下にいくつかの最新の亜種を追加しましたが、これらがすべての可能性のある亜種であるかどうかはわかりません。
要するに、WebCore クラッシュとは何ですか? 私が何もできないのはUIWebView内のバグですか？ありがとうございました！
Thread 2 name: WebThread
Thread 2 Crashed:
0 WebCore 0x32c540c0 WebCore::Document::body() const + 4
1 WebCore 0x32d04052 WebCore::CachedResourceLoader::preload(WebCore::CachedResource::Type, WTF::String const&, WTF::String const&, bool) + 18
2 WebCore 0x32d03ebe WebCore::HTMLPreloadScanner::processToken() + 1510
3 WebCore 0x32d03872 WebCore::HTMLPreloadScanner::scan() + 42
4 WebCore 0x32cebc24 WebCore::HTMLDocumentParser::append(WebCore::SegmentedString const&) + 92
5 WebCore 0x32cbce20 WebCore::DecodedDataDocumentParser::appendBytes(WebCore::DocumentWriter*, char const*, int, bool) + 200
6 WebCore 0x32ceb8d0 WebCore::DocumentWriter::addData(char const*, int, bool) + 48
7 WebCore 0x32ce5c3e WebCore::DocumentLoader::commitData(char const*, int) + 122
8 WebKit 0x358cbc9a -[WebHTMLRepresentation receivedData:withDataSource:] + 158
9 WebKit 0x358cbb10 -[WebDataSource(WebInternal) _receivedData:] + 164
10 WebKit 0x358cba48 WebFrameLoaderClient::committedLoad(WebCore::DocumentLoader*, char const*, int) + 100
11 WebCore 0x32ce2a48 WebCore::DocumentLoader::commitLoad(char const*, int) + 120
12 WebCore 0x32ce29b4 WebCore::DocumentLoader::receivedData(char const*, int) + 72
13 WebCore 0x32ce25da WebCore::ResourceLoader::didReceiveData(char const*, int, long long, bool) + 34
14 WebCore 0x32ce2566 WebCore::MainResourceLoader::didReceiveData(char const*, int, long long, bool) + 474
15 WebCore 0x32ce22b2 WebCore::ResourceLoader::didReceiveData(WebCore::ResourceHandle*, char const*, int, int) + 42
16 WebCore 0x32ce2234 WebCore::ResourceHandle::handleDataArray(__CFArray const*) + 212
17 WebCore 0x32ce2156 WebCore::didReceiveDataArray(_CFURLConnection*, __CFArray const*, void const*) + 34
18 CFNetwork 0x370dd058 URLConnectionClient::_clientDidReceiveData(__CFArray const*, URLConnectionClient::ClientConnectionEventQueue*) + 220
19 CFNetwork 0x370434b0 URLConnectionClient::ClientConnectionEventQueue::processAllEventsAndConsumePayload(XConnectionEventInfo<XClientEvent, XClientEventParams>*, long) + 436
20 CFNetwork 0x3704319c URLConnectionClient::processEvents() + 100
21 CFNetwork 0x370430d2 MultiplexerSource::perform() + 150
22 CoreFoundation 0x3738aacc __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 8
23 CoreFoundation 0x3738a32e __CFRunLoopDoSources0 + 358
24 CoreFoundation 0x3738903e __CFRunLoopRun + 646
25 CoreFoundation 0x3730c49e CFRunLoopRunSpecific + 294
26 CoreFoundation 0x3730c366 CFRunLoopRunInMode + 98
27 WebCore 0x32cb5c9c RunWebThread(void*) + 396
28 libsystem_c.dylib 0x33c2b72e _pthread_start + 314
29 libsystem_c.dylib 0x33c2b5e8 thread_start + 0
また
Thread 2 name: WebThread
Thread 2 Crashed:
0 WebCore 0x32cbe120 WebCore::HTMLDocumentParser::pumpTokenizer(WebCore::HTMLDocumentParser::SynchronousMode) + 312
1 WebCore 0x32cebc66 WebCore::HTMLDocumentParser::append(WebCore::SegmentedString const&) + 158
2 WebCore 0x32cbce20 WebCore::DecodedDataDocumentParser::appendBytes(WebCore::DocumentWriter*, char const*, int, bool) + 200
3 WebCore 0x32ceb8d0 WebCore::DocumentWriter::addData(char const*, int, bool) + 48
4 WebCore 0x32ce5c3e WebCore::DocumentLoader::commitData(char const*, int) + 122
5 WebKit 0x358cbc9a -[WebHTMLRepresentation receivedData:withDataSource:] + 158
6 WebKit 0x358cbb10 -[WebDataSource(WebInternal) _receivedData:] + 164
7 WebKit 0x358cba48 WebFrameLoaderClient::committedLoad(WebCore::DocumentLoader*, char const*, int) + 100
8 WebCore 0x32ce2a48 WebCore::DocumentLoader::commitLoad(char const*, int) + 120
9 WebCore 0x32ce29b4 WebCore::DocumentLoader::receivedData(char const*, int) + 72
10 WebCore 0x32ce25da WebCore::ResourceLoader::didReceiveData(char const*, int, long long, bool) + 34
11 WebCore 0x32ce2566 WebCore::MainResourceLoader::didReceiveData(char const*, int, long long, bool) + 474
12 WebCore 0x32ce22b2 WebCore::ResourceLoader::didReceiveData(WebCore::ResourceHandle*, char const*, int, int) + 42
13 WebCore 0x32ce2276 WebCore::ResourceHandle::handleDataArray(__CFArray const*) + 278
14 WebCore 0x32ce2156 WebCore::didReceiveDataArray(_CFURLConnection*, __CFArray const*, void const*) + 34
15 CFNetwork 0x370dd058 URLConnectionClient::_clientDidReceiveData(__CFArray const*, URLConnectionClient::ClientConnectionEventQueue*) + 220
16 CFNetwork 0x370434b0 URLConnectionClient::ClientConnectionEventQueue::processAllEventsAndConsumePayload(XConnectionEventInfo<XClientEvent, XClientEventParams>*, long) + 436
17 CFNetwork 0x37043592 URLConnectionClient::ClientConnectionEventQueue::processAllEventsAndConsumePayload(XConnectionEventInfo<XClientEvent, XClientEventParams>*, long) + 662
18 CFNetwork 0x3704319c URLConnectionClient::processEvents() + 100
19 CFNetwork 0x370430d2 MultiplexerSource::perform() + 150
20 CoreFoundation 0x3738aacc __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 8
21 CoreFoundation 0x3738a298 __CFRunLoopDoSources0 + 208
22 CoreFoundation 0x3738903e __CFRunLoopRun + 646
23 CoreFoundation 0x3730c49e CFRunLoopRunSpecific + 294
24 CoreFoundation 0x3730c366 CFRunLoopRunInMode + 98
25 WebCore 0x32cb5c9c RunWebThread(void*) + 396
26 libsystem_c.dylib 0x33c2b72e _pthread_start + 314
27 libsystem_c.dylib 0x33c2b5e8 thread_start + 0
また
Thread 2 name: WebThread
Thread 2 Crashed:
0 JavaScriptCore 0x35653c7c WTF::fastFree(void*) + 80
1 WebCore 0x32d064b4 WebCore::SegmentedString::prepend(WebCore::SegmentedSubstring const&) + 136
2 WebCore 0x32d0640e WebCore::SegmentedString::prepend(WebCore::SegmentedString const&) + 66
3 WebCore 0x32d047a8 WebCore::(anonymous namespace)::unconsumeCharacters(WebCore::SegmentedString&, WTF::Vector<unsigned short, 10ul> const&) + 188
4 WebCore 0x32cf023e WebCore::consumeHTMLEntity(WebCore::SegmentedString&, WTF::Vector<unsigned short, 16ul>&, bool&, unsigned short) + 1850
5 WebCore 0x32cef9e4 WebCore::HTMLTokenizer::processEntity(WebCore::SegmentedString&) + 40
6 WebCore 0x32cbebe8 WebCore::HTMLTokenizer::nextToken(WebCore::SegmentedString&, WebCore::HTMLToken&) + 1232
7 WebCore 0x32d03894 WebCore::HTMLPreloadScanner::scan() + 76
8 WebCore 0x32cebc24 WebCore::HTMLDocumentParser::append(WebCore::SegmentedString const&) + 92
9 WebCore 0x32cbce20 WebCore::DecodedDataDocumentParser::appendBytes(WebCore::DocumentWriter*, char const*, int, bool) + 200
10 WebCore 0x32ceb8d0 WebCore::DocumentWriter::addData(char const*, int, bool) + 48
11 WebCore 0x32ce5c3e WebCore::DocumentLoader::commitData(char const*, int) + 122
12 WebKit 0x358cbc9a -[WebHTMLRepresentation receivedData:withDataSource:] + 158
13 WebKit 0x358cbb10 -[WebDataSource(WebInternal) _receivedData:] + 164
14 WebKit 0x358cba48 WebFrameLoaderClient::committedLoad(WebCore::DocumentLoader*, char const*, int) + 100
15 WebCore 0x32ce2a48 WebCore::DocumentLoader::commitLoad(char const*, int) + 120
16 WebCore 0x32ce29b4 WebCore::DocumentLoader::receivedData(char const*, int) + 72
17 WebCore 0x32ce25da WebCore::ResourceLoader::didReceiveData(char const*, int, long long, bool) + 34
18 WebCore 0x32ce2566 WebCore::MainResourceLoader::didReceiveData(char const*, int, long long, bool) + 474
19 WebCore 0x32ce22b2 WebCore::ResourceLoader::didReceiveData(WebCore::ResourceHandle*, char const*, int, int) + 42
20 WebCore 0x32ce2276 WebCore::ResourceHandle::handleDataArray(__CFArray const*) + 278
21 WebCore 0x32ce2156 WebCore::didReceiveDataArray(_CFURLConnection*, __CFArray const*, void const*) + 34
22 CFNetwork 0x370dd058 URLConnectionClient::_clientDidReceiveData(__CFArray const*, URLConnectionClient::ClientConnectionEventQueue*) + 220
23 CFNetwork 0x370434b0 URLConnectionClient::ClientConnectionEventQueue::processAllEventsAndConsumePayload(XConnectionEventInfo<XClientEvent, XClientEventParams>*, long) + 436
24 CFNetwork 0x3704319c URLConnectionClient::processEvents() + 100
25 CFNetwork 0x370430d2 MultiplexerSource::perform() + 150
26 CoreFoundation 0x3738aacc __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 8
27 CoreFoundation 0x3738a32e __CFRunLoopDoSources0 + 358
28 CoreFoundation 0x3738903e __CFRunLoopRun + 646
29 CoreFoundation 0x3730c49e CFRunLoopRunSpecific + 294
30 CoreFoundation 0x3730c366 CFRunLoopRunInMode + 98
31 WebCore 0x32cb5c9c RunWebThread(void*) + 396
32 libsystem_c.dylib 0x33c2b72e _pthread_start + 314
33 libsystem_c.dylib 0x33c2b5e8 thread_start + 0