From: Paul Eggert <eggert@cs.ucla.edu>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: Dmitry Antipov <dmantipov@yandex.ru>,
Emacs development discussions <emacs-devel@gnu.org>
Subject: Re: Avoid C stack overflow
Date: Fri, 14 Mar 2014 06:56:57 -0700 [thread overview]
Message-ID: <53230AA9.6030005@cs.ucla.edu> (raw)
In-Reply-To: <jwv38ilrkyh.fsf-monnier+emacs@gnu.org>
Stefan Monnier wrote:
> Currently, "MAX_ALLOCA = 16 * 1024", so yes, Emacs is expected to
> occasionally allocate objects larger than your typical 4KB or 8KB
> guard page.
That's easily fixable by adjusting MAX_ALLOCA down to a bit less than 4
KiB (which is what Gnulib code does) or by arranging for more guard
pages than usual (more hassle, but eminently doable on most platforms).
Emacs already has a stack-overflow prevention mechanism, right? And
we're talking about what to do when the user deliberately disables it?
So the simplest answer is "don't do that".
next prev parent reply other threads:[~2014-03-14 13:56 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-13 16:42 Avoid C stack overflow Dmitry Antipov
2014-03-13 17:38 ` Eli Zaretskii
2014-03-13 17:57 ` Paul Eggert
2014-03-13 20:56 ` Eli Zaretskii
2014-03-14 7:02 ` Paul Eggert
2014-03-14 5:47 ` Dmitry Antipov
2014-03-14 6:59 ` Paul Eggert
2014-03-14 11:27 ` Dmitry Antipov
2014-03-14 13:05 ` Stefan Monnier
2014-03-14 13:56 ` Paul Eggert [this message]
2014-03-14 16:45 ` Stefan
2014-03-15 1:38 ` Stephen J. Turnbull
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