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Re: Mysterious crash in objc_msgSend in GC app

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Re: Mysterious crash in objc_msgSend in GC app

Subject: Re: Mysterious crash in objc_msgSend in GC app
From: Jens Alfke <email@hidden>
Date: Tue, 27 Oct 2009 11:02:25 -0700


On Oct 27, 2009, at 10:43 AM, Sean McBride wrote:

Thread 0 Crashed: 0 libobjc.A.dylib 0x00007fff81d86ad9 objc_msgSend + 41 1 com.apple.CoreFoundation 0x00007fff81eba969 __CFMessagePortPerform + 185 2 com.apple.CoreFoundation 0x00007fff81eda12c CFRunLoopRunSpecific + 3516

None of your code's in the backtrace, but the MessagePort in frame 1 might be trying to call a defunct object of yours. Are you using NSMessagePort in your app? If so, there might be refcounting problems with an object you're using as its delegate. (Or you might be using DO, which uses NSMessagePort, although I don't know if there's any case where the port would call your code directly instead of going through internal DO methods first.)

—Jens_______________________________________________

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  >Mysterious crash in objc_msgSend in GC app (From: "Sean McBride" <email@hidden>)




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