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From: Yoichi NAKAYAMA <yoichi@geiin.org>
Subject: Re: Preventing stack overflows with alloca.
Date: Tue, 26 Oct 2004 02:11:03 +0900	[thread overview]
Message-ID: <874qki4taw.wl%yoichi@geiin.org> (raw)
In-Reply-To: <200406181113.UAA03743@etlken.m17n.org>

At Fri, 18 Jun 2004 20:13:24 +0900 (JST),
Kenichi Handa wrote:
> Date: Thu, 20 Nov 2003 22:01:20 +0900 (JST)
> From: Kenichi Handa <handa@m17n.org>
> To: emacs-devel@gnu.org
> Subject: dangerous alloca calls
> Sender: emacs-devel-bounces+handa=m17n.org@gnu.org
> 
> With CVS HEAD emacs on GNU/Linux,
>    (mapcar 'car (make-list #x400000 nil))
> causes segfault.
> 
> The attached patch fixes it.  But, I found such dangerous
> alloca calls in several other places.
> 
> E.g. (format (make-string #x1000000 32))
>      (apply 'car (make-list #x100000 nil))

With CVS HEAD emacs on GNU/Linux,
   (format (make-string #x1000000 32))
still causes segfault.

Regards,
-- 
Yoichi NAKAYAMA

  parent reply	other threads:[~2004-10-25 17:11 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-06-18 10:14 Preventing stack overflows with alloca Kim F. Storm
2004-06-18 11:13 ` Kenichi Handa
2004-06-18 12:02   ` Kim F. Storm
2004-06-19  0:19     ` Kenichi Handa
2004-06-19  3:19     ` Richard Stallman
2004-06-20 18:56       ` Kim F. Storm
2004-06-21 22:01       ` Kim F. Storm
2004-06-22 23:17         ` Richard Stallman
2004-10-25 17:11   ` Yoichi NAKAYAMA [this message]
2004-10-26 14:04     ` Kim F. Storm
2004-10-27 17:34       ` Richard Stallman

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