Re: Odd crash
Re: Odd crash
- Subject: Re: Odd crash
- From: "Paul Sanders" <email@hidden>
- Date: Tue, 3 Mar 2009 06:38:01 -0000
(Reza sent me the message below privately but I thought it might be useful
to copy the reply to the list. Excuse me if you have heard it all before).
> So you would think this is happening in the Exception Handling code?
No, I don't think it's happening on the exception handler. I think that is
trapping it, rather than causing it. To help track the problem down, take a
look at this:
http://developer.apple.com/technotes/tn2004/tn2124.html
As a starting point, try running your program under GDB with Guard Malloc
enabled. This often traps memory allocation errors at source, although it
can slow things down a lot. If that is too slow, try setting
MallocScribble, MallocPreScribble, MallocGuardEdges and MallocStackLogging
in your environment as described in the article. You can set these
variables in XCode via Get Info - Arguements on your executable. Check out
also NSZombieEnabled, see http://www.cocoadev.com/index.pl?NSZombieEnabled.
When this is set in the environment, the runtime will trap any reference to
a freed object.
Hope this helps and thanks very much for sending me your code - Paul.
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