我有一个NSCollectionView由一些图像组成的。当鼠标滚动到时NSCollectionView，在某些情况下应用程序崩溃。所以我启用Zombie Object和Malloc Stack。当应用程序崩溃时，-[_NSViewDrawOperation release]: message sent to deallocated instance 0x11ac815e0在控制台中打印。我使用 malloc_history 打印崩溃 malloc。
(gdb) info malloc-history 0x11ac815e0
warning: MallocStackLoggingNoCompact not set in target's environment so the malloc history will not be available.
Alloc: Block address: 0x000000011ac815e0 length: 136
Stack - pthread: 0x7fff7981b960 number of frames: 46
0: 0x7fff8e11136f in malloc_zone_calloc
1: 0x7fff8e11215d in calloc
2: 0x7fff8d3c2182 in CGClipStackCreateMutableCopy
3: 0x7fff8d3c2140 in maybeCopyClipState
4: 0x7fff8d3c45c3 in CGGStateClipToRect
5: 0x7fff8d3c4583 in CGContextClipToRect
6: 0x7fff8d46fca0 in CGContextClipToRects
7: 0x7fff8eb0cde9 in -[NSView _drawRect:clip:]
8: 0x7fff8eb3a49b in -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:]
9: 0x7fff8eb0a8a9 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]
10: 0x7fff8eb0bb5e in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]
11: 0x7fff8eb0bb5e in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]
12: 0x7fff8eb0bb5e in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]
13: 0x7fff8eb051bb in -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:]
14: 0x7fff8eafdba1 in -[NSView displayIfNeeded]
15: 0x7fff8eb02d9e in -[NSClipView _immediateScrollToPoint:]
16: 0x7fff8eb01381 in -[NSClipView scrollToPoint:]
17: 0x7fff8ebef25b in -[NSScrollView scrollClipView:toPoint:]
18: 0x7fff8ebeeffe in -[NSClipView _scrollTo:animateScroll:flashScrollerKnobs:]
19: 0x7fff8ebf1fd7 in -[NSClipView _scrollTo:animate:]
20: 0x7fff8f22c876 in -[NSScrollView _doScroller:hitPart:multiplier:]
21: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
22: 0x7fff8ebc48ca in -[NSApplication sendAction:to:from:]
23: 0x7fff8ebc47fe in -[NSControl sendAction:to:]
24: 0x7fff8f006586 in -[NSScroller sendAction:to:]
25: 0x7fff8f007a3c in -[NSScroller(NSScrollerPrivate) _scrollByDelta:]
26: 0x7fff8f22b4c9 in -[NSScrollView _smoothScrollWithEvent:]
27: 0x7fff8f22a9f8 in -[NSScrollView scrollWheel:]
28: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
29: 0x7fff8eb938ba in forwardMethod
30: 0x7fff8f139127 in -[NSView scrollWheel:]
31: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
32: 0x7fff8eb938ba in forwardMethod
33: 0x7fff8f139127 in -[NSView scrollWheel:]
34: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
35: 0x7fff8eb938ba in forwardMethod
36: 0x7fff8f139127 in -[NSView scrollWheel:]
37: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
38: 0x7fff8eb938ba in forwardMethod
39: 0x7fff8f139127 in -[NSView scrollWheel:]
40: 0x7fff8eb8e0fc in -[NSWindow sendEvent:]
41: 0x7fff8eb26f74 in -[NSApplication sendEvent:]
42: 0x7fff8eabda0e in -[NSApplication run]
43: 0x7fff8ed39eac in NSApplicationMain
44: 0x100002232 in main at /Users/goham/goham/XcodeApp/BookMark_130424_2112/BookMark/main.m:13
45: 0x100002204 in start
Dealloc: Block address: 0x000000011ac815e0
Stack - pthread: 0x7fff7981b960 number of frames: 43
0: 0x7fff8e11175a in free
1: 0x7fff8d3b39c9 in CGGStateRelease
2: 0x7fff8d3b3930 in CGGStackRestore
3: 0x7fff8d3b3909 in CGContextRestoreGState
4: 0x7fff8eb0d3f8 in -[NSView _drawRect:clip:]
5: 0x7fff8eb3a49b in -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:]
6: 0x7fff8eb0a8a9 in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]
7: 0x7fff8eb0bb5e in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]
8: 0x7fff8eb0bb5e in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]
9: 0x7fff8eb0bb5e in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]
10: 0x7fff8eb051bb in -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:]
11: 0x7fff8eafdba1 in -[NSView displayIfNeeded]
12: 0x7fff8eb02d9e in -[NSClipView _immediateScrollToPoint:]
13: 0x7fff8eb01381 in -[NSClipView scrollToPoint:]
14: 0x7fff8ebef25b in -[NSScrollView scrollClipView:toPoint:]
15: 0x7fff8ebeeffe in -[NSClipView _scrollTo:animateScroll:flashScrollerKnobs:]
16: 0x7fff8ebf1fd7 in -[NSClipView _scrollTo:animate:]
17: 0x7fff8f22c876 in -[NSScrollView _doScroller:hitPart:multiplier:]
18: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
19: 0x7fff8ebc48ca in -[NSApplication sendAction:to:from:]
20: 0x7fff8ebc47fe in -[NSControl sendAction:to:]
21: 0x7fff8f006586 in -[NSScroller sendAction:to:]
22: 0x7fff8f007a3c in -[NSScroller(NSScrollerPrivate) _scrollByDelta:]
23: 0x7fff8f22b4c9 in -[NSScrollView _smoothScrollWithEvent:]
24: 0x7fff8f22a9f8 in -[NSScrollView scrollWheel:]
25: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
26: 0x7fff8eb938ba in forwardMethod
27: 0x7fff8f139127 in -[NSView scrollWheel:]
28: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
29: 0x7fff8eb938ba in forwardMethod
30: 0x7fff8f139127 in -[NSView scrollWheel:]
31: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
32: 0x7fff8eb938ba in forwardMethod
33: 0x7fff8f139127 in -[NSView scrollWheel:]
34: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
35: 0x7fff8eb938ba in forwardMethod
36: 0x7fff8f139127 in -[NSView scrollWheel:]
37: 0x7fff8eb8e0fc in -[NSWindow sendEvent:]
38: 0x7fff8eb26f74 in -[NSApplication sendEvent:]
39: 0x7fff8eabda0e in -[NSApplication run]
40: 0x7fff8ed39eac in NSApplicationMain
41: 0x100002232 in main at /Users/goham/goham/XcodeApp/BookMark_130424_2112/BookMark/main.m:13
42: 0x100002204 in start
Alloc: Block address: 0x000000011ac815e0 length: 96
Stack - pthread: 0x7fff7981b960 number of frames: 43
0: 0x7fff8e11136f in malloc_zone_calloc
1: 0x7fff8e11215d in calloc
2: 0x7fff899040c5 in class_createInstance
3: 0x7fff910d1ce7 in +[NSObject allocWithZone:]
4: 0x7fff89904035 in _objc_rootAlloc
5: 0x7fff8f24347a in -[_NSDisplayOperation queueDrawOperationForView:rect:rectSet:windowRegion:options:]
6: 0x7fff8eb0af7f in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]
7: 0x7fff8eb0bb5e in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]
8: 0x7fff8eb0bb5e in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]
9: 0x7fff8eb0bb5e in -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:]
10: 0x7fff8eb051bb in -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:]
11: 0x7fff8eafdba1 in -[NSView displayIfNeeded]
12: 0x7fff8eb02d9e in -[NSClipView _immediateScrollToPoint:]
13: 0x7fff8eb01381 in -[NSClipView scrollToPoint:]
14: 0x7fff8ebef25b in -[NSScrollView scrollClipView:toPoint:]
15: 0x7fff8ebeeffe in -[NSClipView _scrollTo:animateScroll:flashScrollerKnobs:]
16: 0x7fff8ebf1fd7 in -[NSClipView _scrollTo:animate:]
17: 0x7fff8f22c876 in -[NSScrollView _doScroller:hitPart:multiplier:]
18: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
19: 0x7fff8ebc48ca in -[NSApplication sendAction:to:from:]
20: 0x7fff8ebc47fe in -[NSControl sendAction:to:]
21: 0x7fff8f006586 in -[NSScroller sendAction:to:]
22: 0x7fff8f007a3c in -[NSScroller(NSScrollerPrivate) _scrollByDelta:]
23: 0x7fff8f22b4c9 in -[NSScrollView _smoothScrollWithEvent:]
24: 0x7fff8f22a9f8 in -[NSScrollView scrollWheel:]
25: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
26: 0x7fff8eb938ba in forwardMethod
27: 0x7fff8f139127 in -[NSView scrollWheel:]
28: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
29: 0x7fff8eb938ba in forwardMethod
30: 0x7fff8f139127 in -[NSView scrollWheel:]
31: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
32: 0x7fff8eb938ba in forwardMethod
33: 0x7fff8f139127 in -[NSView scrollWheel:]
34: 0x7fff9111c70d in -[NSObject performSelector:withObject:]
35: 0x7fff8eb938ba in forwardMethod
36: 0x7fff8f139127 in -[NSView scrollWheel:]
37: 0x7fff8eb8e0fc in -[NSWindow sendEvent:]
38: 0x7fff8eb26f74 in -[NSApplication sendEvent:]
39: 0x7fff8eabda0e in -[NSApplication run]
40: 0x7fff8ed39eac in NSApplicationMain
41: 0x100002232 in main at /Users/goham/goham/XcodeApp/BookMark_130424_2112/BookMark/main.m:13
42: 0x100002204 in start
但我仍然不明白这一点。任何人都可以帮助我。谢谢！
