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From: Andrzej Popielewicz <va...@icpnet.pl>
Newsgroups: comp.os.coherent
Subject: Re: Trying to port mksh to Coherent
Date: Sat, 05 May 2012 17:59:23 +0200
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Thorsten Glaser pisze:

> If you add -DDEBUG to the compilation of lalloc.c (just that
> one file) you would get more information and a core dump by
> means of calling abort() on that place.

I followed Your advice and used DEBUG in lalloc.

The message produced now is not more informative, it tells "rogue 
pointer 8c8 at ap 0". After adding some fprintfs I have found , that 
error occurs in findptr, called in itself by afree.
It means ap itself in findptr is not NULL but ap->next is.

afree fails for the same reason : ap->next is NULL.

BTW , the error occurs after many remalloc calls in subsequent aresize 
calls  are succesful.
I feel it will be a rather difficult task to find out why the code 
created with newer compiler has problems with memory allocation/freeing.
Perhaps it depends on headers.

Anyway thanks for comments.

Andrzej