带有UIWebView的我的应用程序崩溃了很多。崩溃通常略有不同，但它总是“WebThread”崩溃，具有类似的堆栈跟踪。
我发现了this问题，但我不认为这是我的情况，我有iOS 6而且我没有加载Office文档。 我正在使用websocket将消息发送到服务器并使用ajax commet从服务器接收消息。
当我开始连接时，崩溃总是发生。
Date/Time: 2012-10-01 14:18:07.184 -0300
OS Version: iOS 6.0 (10A403)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000054
Crashed Thread: 4
Thread 4 name: WebThread
Thread 4 Crashed:
0 WebCore 0x35f1b9a0 WebCore::RootInlineBox::ascentAndDescentForBox(WebCore::InlineBox*, WTF::HashMap<WebCore::InlineTextBox const*, std::__1::pair<WTF::Vector<WebCore::SimpleFontData const*, 0ul>, WebCore::GlyphOverflow>, WTF::PtrHash<WebCore::InlineTextBox const*>, WTF::HashTraits<WebCore::InlineTextBox const*>, WTF::HashTraits<std::__1::pair<WTF::Vector<WebCore::SimpleFontData const*, 0ul>, WebCore::GlyphOverflow> > >&, int&, int&, bool&, bool&) const + 1344
1 WebCore 0x35f1b1a4 WebCore::InlineFlowBox::computeLogicalBoxHeights(WebCore::RootInlineBox*, int&, int&, int&, int&, bool&, bool&, bool, WTF::HashMap<WebCore::InlineTextBox const*, std::__1::pair<WTF::Vector<WebCore::SimpleFontData const*, 0ul>, WebCore::GlyphOverflow>, WTF::PtrHash<WebCore::InlineTextBox const*>, WTF::HashTraits<WebCore::InlineTextBox const*>, WTF::HashTraits<std::__1::pair<WTF::Vector<WebCore::SimpleFontData const*, 0ul>, WebCore::GlyphOverflow> > >&, WebCore::FontBaseline, WebCore::VerticalPositionCache&) + 80
2 WebCore 0x35f1ade4 WebCore::RootInlineBox::alignBoxesInBlockDirection(int, WTF::HashMap<WebCore::InlineTextBox const*, std::__1::pair<WTF::Vector<WebCore::SimpleFontData const*, 0ul>, WebCore::GlyphOverflow>, WTF::PtrHash<WebCore::InlineTextBox const*>, WTF::HashTraits<WebCore::InlineTextBox const*>, WTF::HashTraits<std::__1::pair<WTF::Vector<WebCore::SimpleFontData const*, 0ul>, WebCore::GlyphOverflow> > >&, WebCore::VerticalPositionCache&) + 124
3 WebCore 0x35f1acc2 WebCore::RenderBlock::computeBlockDirectionPositionsForLine(WebCore::RootInlineBox*, WebCore::BidiRun*, WTF::HashMap<WebCore::InlineTextBox const*, std::__1::pair<WTF::Vector<WebCore::SimpleFontData const*, 0ul>, WebCore::GlyphOverflow>, WTF::PtrHash<WebCore::InlineTextBox const*>, WTF::HashTraits<WebCore::InlineTextBox const*>, WTF::HashTraits<std::__1::pair<WTF::Vector<WebCore::SimpleFontData const*, 0ul>, WebCore::GlyphOverflow> > >&, WebCore::VerticalPositionCache&) + 54
4 WebCore 0x35f18846 WebCore::RenderBlock::createLineBoxesFromBidiRuns(WebCore::BidiRunList<WebCore::BidiRun>&, WebCore::InlineIterator const&, WebCore::LineInfo&, WebCore::VerticalPositionCache&, WebCore::BidiRun*) + 162
5 WebCore 0x35f0e30c WebCore::RenderBlock::layoutRunsAndFloatsInRange(WebCore::LineLayoutState&, WebCore::BidiResolver<WebCore::InlineIterator, WebCore::BidiRun>&, WebCore::InlineIterator const&, WebCore::BidiStatus const&, unsigned int) + 2048
6 WebCore 0x35f0cf00 WebCore::RenderBlock::layoutRunsAndFloats(WebCore::LineLayoutState&, bool) + 724
7 WebCore 0x35e4b562 WebCore::RenderBlock::layoutInlineChildren(bool, int&, int&) + 986
8 WebCore 0x35e46390 WebCore::RenderBlock::layoutBlock(bool, int) + 1132
9 WebCore 0x35e45c22 WebCore::RenderBlock::layout() + 38
10 WebCore 0x35e48cbc WebCore::RenderBlock::layoutBlockChild(WebCore::RenderBox*, WebCore::RenderBlock::MarginInfo&, int&, int&) + 556
11 WebCore 0x35e47f2c WebCore::RenderBlock::layoutBlockChildren(bool, int&) + 528
12 WebCore 0x35e463a0 WebCore::RenderBlock::layoutBlock(bool, int) + 1148
13 WebCore 0x35e45c22 WebCore::RenderBlock::layout() + 38
14 WebCore 0x35e48cbc WebCore::RenderBlock::layoutBlockChild(WebCore::RenderBox*, WebCore::RenderBlock::MarginInfo&, int&, int&) + 556
15 WebCore 0x35e47f2c WebCore::RenderBlock::layoutBlockChildren(bool, int&) + 528
16 WebCore 0x35e463a0 WebCore::RenderBlock::layoutBlock(bool, int) + 1148
17 WebCore 0x35e45c22 WebCore::RenderBlock::layout() + 38
18 WebCore 0x35e45aae WebCore::RenderView::layout() + 478
19 WebCore 0x35e404b2 WebCore::FrameView::layout(bool) + 1554
20 WebCore 0x35e782c6 WebCore::ThreadTimers::sharedTimerFiredInternal() + 134
21 WebCore 0x35e7820a WebCore::timerFired(__CFRunLoopTimer*, void*) + 62
22 CoreFoundation 0x39a615dc __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 12
23 CoreFoundation 0x39a6128c __CFRunLoopDoTimer + 268
24 CoreFoundation 0x39a5fefc __CFRunLoopRun + 1228
25 CoreFoundation 0x399d2eb8 CFRunLoopRunSpecific + 352
26 CoreFoundation 0x399d2d44 CFRunLoopRunInMode + 100
27 WebCore 0x35de4a70 RunWebThread(void*) + 440
28 libsystem_c.dylib 0x33e4730e _pthread_start + 306
29 libsystem_c.dylib 0x33e471d4 thread_start + 4
...
OS Version: iOS 6.0 (10A403)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x000000a4
Crashed Thread: 2
Thread 2 name: WebThread
Thread 2 Crashed:
0 WebCore 0x35ae72f6 WebCore::requiresLineBox(WebCore::InlineIterator const&, WebCore::LineInfo const&, WebCore::WhitespacePosition) + 30
1 WebCore 0x35ae7286 WebCore::RenderBlock::LineBreaker::skipLeadingWhitespace(WebCore::BidiResolver<WebCore::InlineIterator, WebCore::BidiRun>&, WebCore::LineInfo&, WebCore::RenderBlock::FloatingObject*, WebCore::LineWidth&) + 162
2 WebCore 0x35ae476e WebCore::RenderBlock::LineBreaker::nextLineBreak(WebCore::BidiResolver<WebCore::InlineIterator, WebCore::BidiRun>&, WebCore::LineInfo&, std::__1::pair<WebCore::RenderText*, WebCore::LazyLineBreakIterator>&, WebCore::RenderBlock::FloatingObject*, unsigned int) + 158
3 WebCore 0x35ae45de WebCore::RenderBlock::layoutRunsAndFloatsInRange(WebCore::LineLayoutState&, WebCore::BidiResolver<WebCore::InlineIterator, WebCore::BidiRun>&, WebCore::InlineIterator const&, WebCore::BidiStatus const&, unsigned int) + 2770
4 WebCore 0x35ae2f00 WebCore::RenderBlock::layoutRunsAndFloats(WebCore::LineLayoutState&, bool) + 724
5 WebCore 0x35a21562 WebCore::RenderBlock::layoutInlineChildren(bool, int&, int&) + 986
6 WebCore 0x35a1c390 WebCore::RenderBlock::layoutBlock(bool, int) + 1132
7 WebCore 0x35a1bc22 WebCore::RenderBlock::layout() + 38
8 WebCore 0x35a1ecbc WebCore::RenderBlock::layoutBlockChild(WebCore::RenderBox*, WebCore::RenderBlock::MarginInfo&, int&, int&) + 556
9 WebCore 0x35a1df2c WebCore::RenderBlock::layoutBlockChildren(bool, int&) + 528
10 WebCore 0x35a1c3a0 WebCore::RenderBlock::layoutBlock(bool, int) + 1148
11 WebCore 0x35a1bc22 WebCore::RenderBlock::layout() + 38
12 WebCore 0x35a1ecbc WebCore::RenderBlock::layoutBlockChild(WebCore::RenderBox*, WebCore::RenderBlock::MarginInfo&, int&, int&) + 556
13 WebCore 0x35a1df2c WebCore::RenderBlock::layoutBlockChildren(bool, int&) + 528
14 WebCore 0x35a1c3a0 WebCore::RenderBlock::layoutBlock(bool, int) + 1148
15 WebCore 0x35a1bc22 WebCore::RenderBlock::layout() + 38
16 WebCore 0x35a1baae WebCore::RenderView::layout() + 478
17 WebCore 0x35a164b2 WebCore::FrameView::layout(bool) + 1554
18 WebCore 0x35a4e2c6 WebCore::ThreadTimers::sharedTimerFiredInternal() + 134
19 WebCore 0x35a4e20a WebCore::timerFired(__CFRunLoopTimer*, void*) + 62
20 CoreFoundation 0x396375dc __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 12
21 CoreFoundation 0x3963728c __CFRunLoopDoTimer + 268
22 CoreFoundation 0x39635efc __CFRunLoopRun + 1228
23 CoreFoundation 0x395a8eb8 CFRunLoopRunSpecific + 352
24 CoreFoundation 0x395a8d44 CFRunLoopRunInMode + 100
25 WebCore 0x359baa70 RunWebThread(void*) + 440
26 libsystem_c.dylib 0x33a1d30e _pthread_start + 306
27 libsystem_c.dylib 0x33a1d1d4 thread_start + 4
答案 0 :(得分：3)
我修复了错误，我将javascript日志发送到cocoa，如this，我通过删除它修复了这些崩溃。
实际上，iOS 6不再需要了，因为现在可以使用MAC OX safari调试javascript =）