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Date: Thu, 16 May 2002 21:53:46 +0300
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
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To: lauras AT softhome DOT net
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In-reply-to: <857491702.20020516185704@softhome.net> (message from Laurynas
	Biveinis on Thu, 16 May 2002 18:57:04 +0100)
Subject: Re: emacs under w2k
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> Date: Thu, 16 May 2002 18:57:04 +0100
> From: Laurynas Biveinis <lauras AT softhome DOT net>
> 
> Seems like sbrk():
> 
> -------8<-----
> --DD\---F1  *scratch*         (Lisp Interaction)--L5--All-----------------------
> M-x tetris
> Breakpoint 2, __default_morecore (increment=122880) at gmalloc.c:1575
> 1575      __ptr_t result = (__ptr_t) __sbrk (increment);
> (gdb) s
> 
> D:\devel\djgpp\gnu\emacs\src>
> -------8<-----
> 
> Uhm... what now?

I'd use `stepi' to step by machine instructions, and see which one
explodes.  Here's a suggestion:

   (gdb) display/i $pc
   (gdp) stepi

Thereafter just hit Enter repeatedly, and GDB will step one
instruction at a time, displaying each one before it is executed.  The
last instruction that's displayed before the session dies is the one
where it happens.