cocoa - 垃圾收集器开启时 Webview 崩溃-6ren

cocoa - 垃圾收集器开启时 Webview 崩溃

转载作者：行者123 更新时间：2023-12-03 16:48:28

我有一个非常具体的网页，导致 webview 在垃圾收集器打开时崩溃(关闭时不会崩溃)。

易于重现:创建一个文档基础应用程序，放置一个 webview，并具有以下行(可能是按钮)。

- (void)connectSearch:(id)sender
{
 [[webView mainFrame] loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://apple.com"]]];
}

我想这种情况只有在 Apple 为其新 iPad 做广告时才有效。页面底部有两个视频您可以观看。单击右侧的一个。播放时，单击左上角的“关闭”按钮(链接) - 该按钮会发送 #SwapViewPreviousSelection - 就这样，它崩溃了。

我刚刚了解垃圾收集器，但我怀疑收集了一些不应该收集的东西。

除了关闭垃圾收集器之外，您知道什么可以防止崩溃吗？

谢谢。

这是我得到的:

Identifier:      com.yourcompany.wb
Version:         1.0 (1)
Code Type:       X86-64 (Native)
Parent Process:  launchd [163]

Date/Time:       2010-02-15 12:26:31.069 -0500
OS Version:      Mac OS X 10.6.2 (10C540)
Report Version:  6

Interval Since Last Report:          432447 sec
Crashes Since Last Report:           7
Per-App Interval Since Last Report:  2938 sec
Per-App Crashes Since Last Report:   5
Anonymous UUID:                      CC123A77-1407-444A-9081-8A2B7C15C2B6

Exception Type:  EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread:  0  Dispatch queue: com.apple.main-thread

Application Specific Information:
objc[70635]: garbage collection is ON

Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
0   com.apple.CoreFoundation        0x00007fff82e0a788 CFRetain + 200
1   com.apple.QuartzCore            0x00007fff81677a98 -[CALayer setSublayers:] + 486
2   com.apple.WebCore               0x00007fff87c792a1 WebCore::GraphicsLayerCA::updateSublayerList() + 433
3   com.apple.WebCore               0x00007fff87c7ebd8 WebCore::GraphicsLayerCA::commitLayerChanges() + 840
4   com.apple.WebCore               0x00007fff87c7ed05 WebCore::GraphicsLayerCA::recursiveCommitChanges() + 21
5   com.apple.WebCore               0x00007fff87c7ed31 WebCore::GraphicsLayerCA::recursiveCommitChanges() + 65
6   com.apple.WebCore               0x00007fff87705296 WebCore::FrameView::paintContents(WebCore::GraphicsContext*, WebCore::IntRect const&) + 390
7   com.apple.WebKit                0x00007fff81b3d205 -[WebFrame(WebInternal) _drawRect:contentsOnly:] + 149
8   com.apple.WebKit                0x00007fff81b3ce77 -[WebHTMLView drawSingleRect:] + 455
9   com.apple.WebKit                0x00007fff81b3cc16 -[WebHTMLView drawRect:] + 566
10  com.apple.AppKit                0x00007fff8597b05e -[NSView _drawRect:clip:] + 3566
11  com.apple.AppKit                0x00007fff85978834 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 2112
12  com.apple.WebKit                0x00007fff81b3dd6b -[WebHTMLView(WebPrivate) _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 299
13  com.apple.AppKit                0x00007fff859791bf -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 4555
14  com.apple.AppKit                0x00007fff859791bf -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 4555
15  com.apple.AppKit                0x00007fff859791bf -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 4555
16  com.apple.AppKit                0x00007fff859791bf -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 4555
17  com.apple.AppKit                0x00007fff859791bf -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 4555
18  com.apple.AppKit                0x00007fff859791bf -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 4555
19  com.apple.AppKit                0x00007fff85977e17 -[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 254
20  com.apple.AppKit                0x00007fff859746bf -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 2683
21  com.apple.AppKit                0x00007fff858edf37 -[NSView displayIfNeeded] + 969
22  com.apple.AppKit                0x00007fff858e8dde _handleWindowNeedsDisplay + 678
23  com.apple.CoreFoundation        0x00007fff82e74427 __CFRunLoopDoObservers + 519
24  com.apple.CoreFoundation        0x00007fff82e502d4 __CFRunLoopRun + 468
25  com.apple.CoreFoundation        0x00007fff82e4fc2f CFRunLoopRunSpecific + 575
26  com.apple.HIToolbox             0x00007fff88192a4e RunCurrentEventLoopInMode + 333
27  com.apple.HIToolbox             0x00007fff881927b1 ReceiveNextEventCommon + 148
28  com.apple.HIToolbox             0x00007fff8819270c BlockUntilNextEventMatchingListInMode + 59
29  com.apple.AppKit                0x00007fff858be1f2 _DPSNextEvent + 708
30  com.apple.AppKit                0x00007fff858bdb41 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 155
31  com.apple.AppKit                0x00007fff85883747 -[NSApplication run] + 395
32  com.apple.AppKit                0x00007fff8587c468 NSApplicationMain + 364
33  com.yourcompany.wb              0x0000000100001c86 main + 33 (main.m:14)
34  com.yourcompany.wb              0x0000000100001a44 start + 52

Thread 1:  Dispatch queue: com.apple.libdispatch-manager
0   libSystem.B.dylib               0x00007fff8874bbba kevent + 10
1   libSystem.B.dylib               0x00007fff8874da85 _dispatch_mgr_invoke + 154
2   libSystem.B.dylib               0x00007fff8874d75c _dispatch_queue_invoke + 185
3   libSystem.B.dylib               0x00007fff8874d286 _dispatch_worker_thread2 + 244
4   libSystem.B.dylib               0x00007fff8874cbb8 _pthread_wqthread + 353
5   libSystem.B.dylib               0x00007fff8874ca55 start_wqthread + 13

Thread 2:  JavaScriptCore: FastMalloc scavenger
0   libSystem.B.dylib               0x00007fff8876d9ee __semwait_signal + 10
1   libSystem.B.dylib               0x00007fff887717f1 _pthread_cond_wait + 1286
2   com.apple.JavaScriptCore        0x00007fff80ae62b3 WTF::TCMalloc_PageHeap::scavengerThread() + 515
3   com.apple.JavaScriptCore        0x00007fff80ae62f9 WTF::TCMalloc_PageHeap::runScavengerThread(void*) + 9
4   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
5   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 3:
0   libSystem.B.dylib               0x00007fff8874c9da __workq_kernreturn + 10
1   libSystem.B.dylib               0x00007fff8874cdec _pthread_wqthread + 917
2   libSystem.B.dylib               0x00007fff8874ca55 start_wqthread + 13

Thread 4:
0   libSystem.B.dylib               0x00007fff88732e3a mach_msg_trap + 10
1   libSystem.B.dylib               0x00007fff887334ad mach_msg + 59
2   com.apple.CoreFoundation        0x00007fff82e507a2 __CFRunLoopRun + 1698
3   com.apple.CoreFoundation        0x00007fff82e4fc2f CFRunLoopRunSpecific + 575
4   com.apple.Foundation            0x00007fff800de4cf +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 297
5   com.apple.Foundation            0x00007fff8005ee99 __NSThread__main__ + 1429
6   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
7   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 5:
0   libSystem.B.dylib               0x00007fff887769e2 select$DARWIN_EXTSN + 10
1   com.apple.CoreFoundation        0x00007fff82e72242 __CFSocketManager + 818
2   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
3   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 6:
0   libSystem.B.dylib               0x00007fff8874c9da __workq_kernreturn + 10
1   libSystem.B.dylib               0x00007fff8874cdec _pthread_wqthread + 917
2   libSystem.B.dylib               0x00007fff8874ca55 start_wqthread + 13

Thread 7:
0   libSystem.B.dylib               0x00007fff8873d426 read + 10
1   com.apple.CoreFoundation        0x00007fff82eb1ae0 __CFSocketRead + 544
2   com.apple.CFNetwork             0x00007fff88bba667 __CFSocketReadWithError(__CFSocket*, unsigned char*, long, CFStreamError*) + 35
3   com.apple.CFNetwork             0x00007fff88bba397 SocketStream::read(__CFReadStream*, unsigned char*, long, CFStreamError*, unsigned char*) + 699
4   com.apple.CoreFoundation        0x00007fff82e3ffac CFReadStreamRead + 540
5   com.apple.CFNetwork             0x00007fff88bd3dc1 HTTPReadFilter::doPlainRead(unsigned char*, long, CFStreamError*, unsigned char*) + 307
6   com.apple.CFNetwork             0x00007fff88bd3c59 HTTPReadFilter::streamRead(__CFReadStream*, unsigned char*, long, CFStreamError*, unsigned char*) + 469
7   com.apple.CoreFoundation        0x00007fff82e3ffac CFReadStreamRead + 540
8   com.apple.CFNetwork             0x00007fff88bd39e6 HTTPNetStreamInfo::streamRead(__CFReadStream*, unsigned char*, long, CFStreamError*, unsigned char*) + 562
9   com.apple.CoreFoundation        0x00007fff82e3ffac CFReadStreamRead + 540
10  com.apple.CFNetwork             0x00007fff88c23892 HTTPReadStream::streamRead(__CFReadStream*, unsigned char*, long, CFStreamError*, unsigned char*) + 82
11  com.apple.CoreFoundation        0x00007fff82e3ffac CFReadStreamRead + 540
12  com.apple.MediaToolbox          0x00007fff86b59a6f FigCFHTTPReadResponse + 855
13  com.apple.CoreFoundation        0x00007fff82eb1503 _signalEventSync + 115
14  com.apple.CoreFoundation        0x00007fff82eb1474 _cfstream_solo_signalEventSync + 116
15  com.apple.CFNetwork             0x00007fff88c228fd HTTPReadStream::streamEvent(unsigned long) + 163
16  com.apple.CoreFoundation        0x00007fff82eb1503 _signalEventSync + 115
17  com.apple.CoreFoundation        0x00007fff82eb1474 _cfstream_solo_signalEventSync + 116
18  com.apple.CoreFoundation        0x00007fff82e52271 __CFRunLoopDoSources0 + 1361
19  com.apple.CoreFoundation        0x00007fff82e50469 __CFRunLoopRun + 873
20  com.apple.CoreFoundation        0x00007fff82e4fc2f CFRunLoopRunSpecific + 575
21  com.apple.CoreFoundation        0x00007fff82e4f9b6 CFRunLoopRun + 70
22  com.apple.CoreMedia             0x00007fff803d4702 FigThreadGlobalNetworkBufferingRunloop + 119
23  libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
24  libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 8:
0   libSystem.B.dylib               0x00007fff8876d9ee __semwait_signal + 10
1   libSystem.B.dylib               0x00007fff887717f1 _pthread_cond_wait + 1286
2   com.apple.CoreMedia             0x00007fff803d5947 WaitOnCondition + 14
3   com.apple.CoreMedia             0x00007fff803d5b13 FigSemaphoreWaitRelative + 167
4   com.apple.MediaToolbox          0x00007fff86aee8c7 FigAIORequestThread + 398
5   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
6   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 9:
0   libSystem.B.dylib               0x00007fff8874c9da __workq_kernreturn + 10
1   libSystem.B.dylib               0x00007fff8874cdec _pthread_wqthread + 917
2   libSystem.B.dylib               0x00007fff8874ca55 start_wqthread + 13

Thread 10:
0   libSystem.B.dylib               0x00007fff88732e3a mach_msg_trap + 10
1   libSystem.B.dylib               0x00007fff887334ad mach_msg + 59
2   com.apple.CoreFoundation        0x00007fff82e507a2 __CFRunLoopRun + 1698
3   com.apple.CoreFoundation        0x00007fff82e4fc2f CFRunLoopRunSpecific + 575
4   com.apple.CoreFoundation        0x00007fff82e4f9b6 CFRunLoopRun + 70
5   com.apple.QTKit                 0x00007fff830d0c49 QTFigVisualContextImageProviderWorkThread + 342
6   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
7   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 11:
0   libSystem.B.dylib               0x00007fff88732e3a mach_msg_trap + 10
1   libSystem.B.dylib               0x00007fff887334ad mach_msg + 59
2   com.apple.CoreFoundation        0x00007fff82e507a2 __CFRunLoopRun + 1698
3   com.apple.CoreFoundation        0x00007fff82e4fc2f CFRunLoopRunSpecific + 575
4   ....audio.toolbox.AudioToolbox  0x00007fff8416267a GenericRunLoopThread::RunLoop() + 42
5   ....audio.toolbox.AudioToolbox  0x00007fff841629f0 GenericRunLoopThread::Run() + 140
6   ....audio.toolbox.AudioToolbox  0x00007fff8412ded5 CAPThread::Entry(CAPThread*) + 67
7   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
8   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 12:
0   libSystem.B.dylib               0x00007fff8876d9ee __semwait_signal + 10
1   libSystem.B.dylib               0x00007fff887717f1 _pthread_cond_wait + 1286
2   com.apple.CoreMedia             0x00007fff803d5947 WaitOnCondition + 14
3   com.apple.CoreMedia             0x00007fff803d5b13 FigSemaphoreWaitRelative + 167
4   com.apple.MediaToolbox          0x00007fff86afd4dd faq_EnqueueSourceDataThread + 44
5   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
6   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 13:
0   libSystem.B.dylib               0x00007fff8876d9ee __semwait_signal + 10
1   libSystem.B.dylib               0x00007fff887717f1 _pthread_cond_wait + 1286
2   com.apple.CoreMedia             0x00007fff803d5947 WaitOnCondition + 14
3   com.apple.CoreMedia             0x00007fff803d5b13 FigSemaphoreWaitRelative + 167
4   com.apple.MediaToolbox          0x00007fff86b9b03b activitySchedulerOnThread + 69
5   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
6   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 14:
0   libSystem.B.dylib               0x00007fff8876d9ee __semwait_signal + 10
1   libSystem.B.dylib               0x00007fff887717f1 _pthread_cond_wait + 1286
2   com.apple.CoreMedia             0x00007fff803d5947 WaitOnCondition + 14
3   com.apple.CoreMedia             0x00007fff803d5b13 FigSemaphoreWaitRelative + 167
4   com.apple.MediaToolbox          0x00007fff86b26d49 audioMentorThread + 6000
5   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
6   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 15:
0   libSystem.B.dylib               0x00007fff8876d9ee __semwait_signal + 10
1   libSystem.B.dylib               0x00007fff887717f1 _pthread_cond_wait + 1286
2   com.apple.CoreMedia             0x00007fff803d5947 WaitOnCondition + 14
3   com.apple.CoreMedia             0x00007fff803d5b13 FigSemaphoreWaitRelative + 167
4   com.apple.MediaToolbox          0x00007fff86b3003a videoMentorThread + 5700
5   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
6   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 16:
0   libSystem.B.dylib               0x00007fff88732e3a mach_msg_trap + 10
1   libSystem.B.dylib               0x00007fff887334ad mach_msg + 59
2   com.apple.CoreFoundation        0x00007fff82e507a2 __CFRunLoopRun + 1698
3   com.apple.CoreFoundation        0x00007fff82e4fc2f CFRunLoopRunSpecific + 575
4   com.apple.CoreFoundation        0x00007fff82e4f9b6 CFRunLoopRun + 70
5   com.apple.QTKit                 0x00007fff830cfad4 QTCALayerRendererPendingQWorkLoop + 534
6   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
7   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 17:
0   libSystem.B.dylib               0x00007fff88732e76 semaphore_wait_trap + 10
1   com.apple.VideoToolbox          0x00007fff80487f25 JVTLib_100988 + 11
2   com.apple.VideoToolbox          0x00007fff804d61d8 JVTLib_101021(void*) + 60
3   com.apple.VideoToolbox          0x00007fff804882f4 JVTLib_100971 + 552
4   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
5   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 18:
0   libSystem.B.dylib               0x00007fff88732e76 semaphore_wait_trap + 10
1   com.apple.VideoToolbox          0x00007fff80487f25 JVTLib_100988 + 11
2   com.apple.VideoToolbox          0x00007fff804d61d8 JVTLib_101021(void*) + 60
3   com.apple.VideoToolbox          0x00007fff804882f4 JVTLib_100971 + 552
4   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
5   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 19:
0   libSystem.B.dylib               0x00007fff88732e9a semaphore_timedwait_signal_trap + 10
1   libSystem.B.dylib               0x00007fff887716e2 _pthread_cond_wait + 1015
2   com.apple.CoreVideo             0x00007fff83d2988c CVDisplayLink::waitUntil(unsigned long long) + 252
3   com.apple.CoreVideo             0x00007fff83d28d91 CVDisplayLink::runIOThread() + 619
4   com.apple.CoreVideo             0x00007fff83d28aeb startIOThread(void*) + 139
5   libSystem.B.dylib               0x00007fff8876bf8e _pthread_start + 331
6   libSystem.B.dylib               0x00007fff8876be41 thread_start + 13

Thread 0 crashed with X86 Thread State (64-bit):
  rax: 0x0000000000000000  rbx: 0x0000000000000000  rcx: 0x0000000000000000  rdx: 0x0000000000000018
  rdi: 0x0000000000000000  rsi: 0x000000020070f7d8  rbp: 0x00007fff5fbfbcf0  rsp: 0x00007fff5fbfbce0
   r8: 0x00000001010e48d0   r9: 0x000000000000f740  r10: 0x00000001010e42f0  r11: 0x00007fff87d9ca50
  r12: 0x0000000101238600  r13: 0x0000000000000000  r14: 0x000000020070f7c0  r15: 0x0000000000000000
  rip: 0x00007fff82e0a788  rfl: 0x0000000000000246  cr2: 0x00007fff702c13c8

最佳答案

您问题中的堆栈跟踪证明了 WebKit 中已知(且已修复)的错误

https://bugs.webkit.org/show_bug.cgi?id=31429

关于cocoa - 垃圾收集器开启时 Webview 崩溃，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/2267549/

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