Re: Nil Object Crashing KVO
Re: Nil Object Crashing KVO
- Subject: Re: Nil Object Crashing KVO
- From: Ken Thomases <email@hidden>
- Date: Sun, 24 Aug 2008 12:05:42 -0500
On Aug 24, 2008, at 11:58 AM, Gordon Apple wrote:
10.5.4, MacBookPro 2.4 GHz Intel Core 2 Duo. Only console message is
Program received signal: “EXC_BAD_ACCESS”.
#0 0x9595c6e8 in objc_msgSend
#1 0x924415d3 in _NSValueOfClassWithSpecialSpecificErrorMessage
#2 0x924410b4 in -[NSArrayDetailBinder
_refreshDetailContentInBackground:]
#3 0x920080ce in NSKVONotify
#4 0x91f84702 in -[NSObject(NSKeyValueObserverNotification)
didChangeValueForKey:]
#5 0x0000f9be in -[RTPDisplayController updateShotAndLayer] at
RTPDisplayController.m:314
#6 0x0001106b in -[RTPDisplayController awakeFromNib] at
RTPDisplayController.m:539
That seems like a deallocated object is being messaged. In other
words, an object was added as a KVO observer but was not removed as an
observer before it was fully released.
Enable NSZombie to find out the nature of the object. If that's not
enough, use the Object Allocations instrument (or
MallocStackLoggingNoCompact and malloc_history) to gather a full
history of allocations and then figure out what happened with the
memory address in question.
Good luck,
Ken_______________________________________________
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