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Re: NSLayoutManager Background Layout Crash

look for a non-retained attribute, such as a paragraph style or something similar, that gets applied to the text and is then prematurely released.


On Jul 29, 2005, at 1:57 PM, phil wrote:



 __objc_error indicates an internal error detected by the Objective-C
 runtime.  There are a variety of things that can cause it, but none
 of them are particularly common.  It's possible there's a memory
 smasher that has overwritten something in the runtime.  I believe
 it's also possible for this to occur in some cases from use of a
 dangling reference to a released object.  Try running (a) with
 zombies enabled, and (b) with libgmalloc.


Will do and see what I come up with. A problem though, is that an __objc_error is not always responsble for bringing
the program down. Two other reports (from _NSPostBackgroundLayout on), look like this:

0 com.apple.CoreFoundation 0x9028def0 __CFArrayRepositionDequeRegions + 56
1 com.apple.CoreFoundation 0x90285e6c _CFArrayReplaceValues + 1472
2 com.apple.Foundation 0x90afc4f4 -[NSCFArray removeLastObject] + 192
3 com.apple.AppKit 0x9254a3bc -[NSSortedArray removeLastObject] + 48
4 com.apple.Foundation 0x90b11240 -[NSMutableArray removeAllObjects] + 68
5 com.apple.AppKit 0x9253db98 -[NSLayoutManager (NSPrivate)
_fillLayoutHoleAtIndex:desiredNumberOfLines:] + 2720
6 com.apple.AppKit 0x9258fa50 +[NSLayoutManager (NSPrivate) _doSomeBackgroundLayout] + 556
7 com.apple.AppKit 0x9258f6a0 _NSPostBackgroundLayout + 364
...

0 com.apple.AppKit 0x92e782ac -[NSLayoutManager setTextContainer:forGlyphRange:] + 0x17c
1 com.apple.AppKit 0x92eea9cc -[NSLayoutManager (NSPrivate)
_doLayoutWithFullContainerStartingAtGlyphIndex:nextGlyphIndex:] + 0xe0
2 com.apple.AppKit 0x92e88a84 -[NSLayoutManager (NSPrivate)
_fillLayoutHoleAtIndex:desiredNumberOfLines:] + 0x4e8
3 com.apple.AppKit 0x92f11af0 +[NSLayoutManager (NSPrivate) _doSomeBackgroundLayout] +
0x224
4 com.apple.AppKit 0x92edd7e0 _NSPostBackgroundLayout + 0xa0
...

-Phil
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References: 
 >Re: NSLayoutManager Background Layout Crash (From: "phil" <email@hidden>)



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