Re: How to find EXC_BAD_ACCESS bug?

FROM : John C. Randolph
DATE : Wed Aug 18 00:39:48 2004

On Aug 17, 2004, at 3:13 PM, Andrew Duncan wrote:

> My Cocoa app regularly crashes with this bad access error, but every
> time I debug the app it (appears to) crash in a different place. Often
> this is buried way down in system routines, where the debugger shows
> only disassembled op codes. Sometimes this is purely in the NSApp's
> run loop, so there is none of my code on the stack. Sometimes it's in
> my code, but there's no obviously suspect code nearby.
>
> What are the basic tools/procedures for using Xcode to narrow this
> down?


Run your app with NSZombiesEnabled turned on.  This kind of problem is
almost always the result of over-releasing an object.

-jcr


John C. Randolph    <<email_removed>>  (408) 974-8819
Sr. Cocoa Software Engineer,
Apple Worldwide Developer Relations
http://developer.apple.com/cocoa/index.html
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