问题描述
我使用 WebFrame 将请求加载到运行Microsoft SilverLight的网站。当我使用64位英特尔架构（x86_64）构建我的应用程序时，它运行良好。但是，因为我必须使用为32位Intel构建的第三方库，我必须使用该架构构建我的应用程序。当我这样做，我得到以下错误信息
I am using a WebFrame to load a request to a website that is running Microsoft SilverLight. When I build my application using the 64-bit Intel architecture (x86_64), it runs fine. However, because I must use a third party library built for 32-bit Intel, I must build my application using that architecture. When I do that, I get the following error message
<Error>: clip: empty path.
prior to a second call to
- (void) webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)frame
b $ b
，我的应用程序最终崩溃或挂起。
and my application eventually crashes or hangs.
有人遇到这个问题，知道什么问题吗？有没有什么理由为什么只有在为32位Intel架构构建时才会发生这种情况？
Has anyone experienced this problem and know what the issue may be? Is there some reason why this only happens when building for the 32-bit Intel architecture?
这是值得的，这里是崩溃的堆栈跟踪：
For what it's worth, here is a stack trace of the crash:
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x000000007cabac94
VM Regions Near 0x7cabac94:
MALLOC_TINY 000000007c800000-000000007ca00000 [ 2048K] rw-/rwx SM=PRV
--> MALLOC_TINY 000000007ca00000-000000007cb00000 [ 1024K] rw-/rwx SM=COW
MALLOC_TINY 000000007cb00000-000000007cc00000 [ 1024K] rw-/rwx SM=PRV
Application Specific Information:
objc[44662]: garbage collection is OFF
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 ??? 0x7cabac94 0 + 2091625620
1 com.microsoft.net.coreclr 0x0aaea95e GetCLRRuntimeHost + 220078
2 com.microsoft.net.coreclr 0x0aa2c23e MetaDataGetDispenser + 1383214
3 com.microsoft.net.coreclr 0x0ad799e3 PAL_InitializeCoreCLR + 57795
4 com.microsoft.net.coreclr 0x0aa2b1c5 MetaDataGetDispenser + 1378997
5 com.microsoft.net.coreclr 0x0aa2b49f MetaDataGetDispenser + 1379727
6 com.microsoft.net.coreclr 0x0aa2b60b MetaDataGetDispenser + 1380091
7 com.microsoft.net.coreclr 0x0aab3630 MetaDataGetDispenser + 1937184
8 com.microsoft.net.coreclr 0x0aab4f67 GetCLRRuntimeHost + 439
9 com.microsoft.SilverlightPlugin 0x09499a57 UI_GetSaveFileName + 37895
10 com.microsoft.SilverlightPlugin 0x093e5858 ippiDCTQuantInv8x8LS_JPEG_16s8u_C1R_SSE + 4824
11 com.microsoft.SilverlightPlugin 0x08cb7dc1 main + 769249
12 com.microsoft.SilverlightPlugin 0x09480ad7 LocalMessageReceive + 308343
13 com.microsoft.SilverlightPlugin 0x092789a1 PopupRoot_GetOpenPopups + 427361
14 com.microsoft.SilverlightPlugin 0x09273a65 PopupRoot_GetOpenPopups + 407077
15 com.microsoft.SilverlightPlugin 0x0925d8a6 PopupRoot_GetOpenPopups + 316518
16 com.microsoft.SilverlightPlugin 0x0925db19 PopupRoot_GetOpenPopups + 317145
17 com.apple.CoreFoundation 0x9c8667be __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30
18 com.apple.CoreFoundation 0x9c8666fd __CFRunLoopDoObservers + 413
19 com.apple.CoreFoundation 0x9c838917 CFRunLoopRunSpecific + 375
20 com.apple.CoreFoundation 0x9c838798 CFRunLoopRunInMode + 120
21 com.apple.HIToolbox 0x97b91a7f RunCurrentEventLoopInMode + 318
22 com.apple.HIToolbox 0x97b98d9b ReceiveNextEventCommon + 381
23 com.apple.HIToolbox 0x97b98c0a BlockUntilNextEventMatchingListInMode + 88
24 com.apple.AppKit 0x9b358040 _DPSNextEvent + 678
25 com.apple.AppKit 0x9b3578ab -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 113
26 com.apple.AppKit 0x9b353c22 -[NSApplication run] + 911
27 com.apple.AppKit 0x9b5e818a NSApplicationMain + 1054
28 com.Vigience.TestBrowser 0x0009be09 start + 53
推荐答案
我想知道如果你受到问题1的打击，我在我的回答。我看到你没有使用Mono，但你正在使用webView，崩溃堆栈看起来非常相似。在类似的情况下，我们中的一些人已经改变了useragent字符串...
I am wondering if you are getting hit by issue 1 that I outlined in my answer over here. I see that you are not using Mono, but you are using webView, and the crash stack looks very similar. In similar cases, a number of us have had luck with changing the useragent string...
这篇关于在为32位Intel体系结构构建时，在WebFrame中加载Silverlight网站的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！