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From: stevec@Apple.COM (Steve Christensen)
Newsgroups: comp.sys.mac.programmer
Subject: Re: identify this error...
Message-ID: <46656@apple.Apple.COM>
Date: 16 Nov 90 22:07:07 GMT
References: <16454@csli.Stanford.EDU>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 30

ramaley@csli.Stanford.EDU (Alan Ramaley) writes:
>Okay.  I'm the d00d who posted not so long ago about how to do
>big-time debugging.  Naturally, having asked the question, I didn't
>understand any of the follow-ups.  TMON?  What's TMON?  But it's
>irrelevant.
>
>Here's what I see in Macsbug when my program hangs...
>
>NMI
>	_StripAddress
>		+05C8	40AD98	*MOVE.L	(A0),D0
>
>What's your theory?  I'm running on a Mac SE, a few inits
>(Diskdoubler, the Grouch, Moire), and a limping hard drive.

That address is in the Memory Manager, and I'd wager that A0 contains an odd
address.  A0 points to a block in the heap.  Most likely the header of the
block just before that one was trashed.  Do you own the block 2 previous to
the current one?  Maybe you wrote a few more bytes to it than it could
contain?

steve

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