我的应用程序通常在iOS 5 - 9上，在每个iPad型号上运行。 但在iPad Air 2上有时会正常运行，有时会在许多其他地方崩溃。我不能在这篇文章中编写代码，它非常大，因为我在很多其他地方写崩溃。有时杂项变量是零，有时是好的。有时应用程序崩溃，但变量不是零而不是僵尸或垃圾。
这是调试器 bt ：
的示例示例＃1：
* thread #1: tid = 0x2af45, 0x000000011130b817 libobjc.A.dylib`objc_msgSend + 23, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x2267f9c40)
frame #0: 0x000000011130b817 libobjc.A.dylib`objc_msgSend + 23
frame #1: 0x000000010fa7308f UIKit`-[UIWindow _setAttachedToScene:] + 75
frame #2: 0x000000010fa764f3 UIKit`-[UIWindow _updateLayerOrderingAndSetLayerHidden:] + 93
frame #3: 0x000000010fa89034 UIKit`-[UIWindow makeKeyAndVisible] + 63
frame #4: 0x000000010fdad614 UIKit`-[UINib instantiateWithOwner:options:] + 2646
frame #5: 0x000000010fdaf53d UIKit`-[NSBundle(UINSBundleAdditions) loadNibNamed:owner:options:] + 223
frame #6: 0x000000010fa0df5e UIKit`-[UIApplication _loadMainNibFileNamed:bundle:] + 57
frame #7: 0x000000010fa0e33c UIKit`-[UIApplication _loadMainInterfaceFile] + 260
frame #8: 0x000000010fa0cca1 UIKit`-[UIApplication _runWithMainScene:transitionContext:completion:] + 1383
frame #9: 0x000000010fa09ff0 UIKit`-[UIApplication workspaceDidEndTransaction:] + 188
frame #10: 0x00000001136f37ac FrontBoardServices`-[FBSSerialQueue _performNext] + 192
frame #11: 0x00000001136f3b1a FrontBoardServices`-[FBSSerialQueue _performNextFromRunLoopSource] + 45
frame #12: 0x00000001117aa0a1 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
frame #13: 0x000000011179ffcc CoreFoundation`__CFRunLoopDoSources0 + 556
frame #14: 0x000000011179f483 CoreFoundation`__CFRunLoopRun + 867
frame #15: 0x000000011179ee98 CoreFoundation`CFRunLoopRunSpecific + 488
frame #16: 0x000000010fa0998d UIKit`-[UIApplication _run] + 402
frame #17: 0x000000010fa0e676 UIKit`UIApplicationMain + 171
* frame #18: 0x000000010ebe8ba1 SWPi2`main(argc=1, argv=0x00007fff510b7788) + 129 at main.m:7
frame #19: 0x000000011329392d libdyld.dylib`start + 1
frame #20: 0x000000011329392d libdyld.dylib`start + 1
示例＃2
* thread #1: tid = 0x3309b, 0x000000010a95f80b libobjc.A.dylib`objc_msgSend + 11, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT)
frame #0: 0x000000010a95f80b libobjc.A.dylib`objc_msgSend + 11
frame #1: 0x00000001090e06f7 UIKit`+[UIWindow _enumerateWindowsIncludingInternalWindows:onlyVisibleWindows:allowMutation:withBlock:] + 143
frame #2: 0x00000001090e049c UIKit`+[UIWindow allWindowsIncludingInternalWindows:onlyVisibleWindows:forScreen:] + 185
frame #3: 0x00000001091f2726 UIKit`-[UIViewController _window] + 315
frame #4: 0x00000001090f6526 UIKit`-[UIView _currentUserInterfaceIdiom] + 85
frame #5: 0x00000001091a4c52 UIKit`-[UITableView setContentOffset:] + 398
frame #6: 0x000000010913910e UIKit`-[UIScrollView(UIScrollViewInternal) _adjustContentOffsetIfNecessary] + 53
frame #7: 0x00000001091358fa UIKit`-[UIScrollView(UIScrollViewInternal) _stopScrollingNotify:pin:tramplingDragFlags:] + 410
frame #8: 0x00000001091217ec UIKit`-[UIScrollView _didMoveFromWindow:toWindow:] + 113
frame #9: 0x000000010910cb32 UIKit`-[UIView(Internal) _didMoveFromWindow:toWindow:] + 862
frame #10: 0x0000000109102106 UIKit`__45-[UIView(Hierarchy) _postMovedFromSuperview:]_block_invoke + 155
frame #11: 0x0000000109102005 UIKit`-[UIView(Hierarchy) _postMovedFromSuperview:] + 544
frame #12: 0x000000010910002d UIKit`__UIViewWasRemovedFromSuperview + 213
frame #13: 0x00000001090ffbc9 UIKit`-[UIView(Hierarchy) removeFromSuperview] + 422
frame #14: 0x00000001090cbdeb UIKit`-[UIWindow setRootViewController:] + 774
* frame #15: 0x000000010823904b SWPi2`-[SwpAppDelegate application:didFinishLaunchingWithOptions:](self=0x00007fb6b860bb20, _cmd="application:didFinishLaunchingWithOptions:", application=0x00007fb6b84021e0, launchOptions=0x0000000000000000) + 155 at SwpAppDelegate.m:29
frame #16: 0x00000001090594ca UIKit`-[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] + 272
frame #17: 0x000000010905a670 UIKit`-[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] + 3415
frame #18: 0x0000000109060e15 UIKit`-[UIApplication _runWithMainScene:transitionContext:completion:] + 1755
frame #19: 0x000000010905dff0 UIKit`-[UIApplication workspaceDidEndTransaction:] + 188
frame #20: 0x000000010cd477ac FrontBoardServices`-[FBSSerialQueue _performNext] + 192
frame #21: 0x000000010cd47b1a FrontBoardServices`-[FBSSerialQueue _performNextFromRunLoopSource] + 45
frame #22: 0x000000010adfe0a1 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
frame #23: 0x000000010adf3fcc CoreFoundation`__CFRunLoopDoSources0 + 556
frame #24: 0x000000010adf3483 CoreFoundation`__CFRunLoopRun + 867
frame #25: 0x000000010adf2e98 CoreFoundation`CFRunLoopRunSpecific + 488
frame #26: 0x000000010905d98d UIKit`-[UIApplication _run] + 402
frame #27: 0x0000000109062676 UIKit`UIApplicationMain + 171
frame #28: 0x000000010823cba1 SWPi2`main(argc=1, argv=0x00007fff57a63788) + 129 at main.m:7
frame #29: 0x000000010c8e792d libdyld.dylib`start + 1
frame #30: 0x000000010c8e792d libdyld.dylib`start + 1
iPad Air 2的具体内容是什么？