GNU bug report logs - #18410
Use SAFE_ALLOCA etc. to avoid unbounded stack allocation.

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Message #64 received at 18410 <at> debbugs.gnu.org (full text, mbox):

From: Dmitry Antipov <dmantipov <at> yandex.ru>
To: Paul Eggert <eggert <at> cs.ucla.edu>, 
 Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 18410 <at> debbugs.gnu.org
Subject: Re: bug#18410: Use SAFE_ALLOCA etc. to avoid unbounded stack
 allocation.
Date: Mon, 08 Sep 2014 11:26:05 +0400

On 09/08/2014 06:38 AM, Paul Eggert wrote:

> If I understand things correctly, Dmitry's recent stack-overflow changes
> don't  affect this, as they don't deal with the guard-page region size.

Yes.  Guard-page approach has an unsolvable problem with dynamically adjusted
stack size (prlimit on GNU/Linux) - you just don't know where the guard page
should be, and there is no OS-level capability to notify an application about
stack size change.

Dmitry

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