GNU bug report logs - #2403
23.0.90; emacs bootstrap under AIX hangs at lisp/international/characters.el

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Harald Maier <harald <at> maierh.de>
Cc: 2403 <at> debbugs.gnu.org
Subject: bug#2403: 23.0.90;	emacs bootstrap under AIX hangs at lisp/international/characters.el
Date: Thu, 26 Feb 2009 21:35:52 +0200

> From: Harald Maier <harald <at> maierh.de>
> Date: Thu, 26 Feb 2009 19:26:00 +0100
> Cc: 
> 
> Harald Maier <harald <at> maierh.de> writes:
> 
> > I am trying to build emacs-23.0.90 under AIX but it hangs at loading the
> > characters.el file:
> >
> > ----------------------------------------------------------------------
> > ...
> > Loading /usr/maierha/build/cvs/emacs/lisp/international/mule-cmds.el (source)...
> > Loading /usr/maierha/build/cvs/emacs/lisp/case-table.el (source)...
> > Loading /usr/maierha/build/cvs/emacs/lisp/international/characters.el (source)...
> > ----------------------------------------------------------------------
> >
> > This happens on AIX 5.2 and AIX 5.3 and I am using the latest CVS
> > version. It looks that temacs is in an enless loop. Any idea what the
> > problem might be?
> 
> I digged a little bit deeper to this problem. temacs is in a endless
> loop in the following for loop in the alloca.c file:
> 
> --- alloca.c:5101 ---
> #if (GC_MARK_STACK == GC_MAKE_GCPROS_NOOPS \
>      || GC_MARK_STACK == GC_MARK_STACK_CHECK_GCPROS)
>   mark_stack ();
> #else
>   {
>     register struct gcpro *tail;
> =>  for (tail = gcprolist; tail; tail = tail->next)
>       for (i = 0; i < tail->nvars; i++)
>         mark_object (tail->var[i]);
>   }
> #endif
> ---------------------
> If I examine the values in gdb then I see that the second element of
> gcprolist points to itself in the next element. That's why emacs loops.

Could it be that Emacs doesn't have enough stack space?  (I have no
idea whether stack on AIX is statically allocated and what is its
default size.)

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