GNU bug report logs - #2099
stack overflow in GC when creating large nested object

Previous Next

Package: emacs;

Reported by: Markus Triska <markus.triska <at> gmx.at>

Date: Wed, 28 Jan 2009 23:15:02 UTC

Severity: wishlist

Tags: confirmed

Merged with 31362

Found in version 24.5

Done: Mattias Engdegård <mattiase <at> acm.org>

Bug is archived. No further changes may be made.

Full log

View this message in rfc822 format

From: Lars Magne Ingebrigtsen <larsi <at> gnus.org>
To: 2099 <at> debbugs.gnu.org
Subject: bug#2099: 23.0.60; `mark_object' with larger nested objects crashes Emacs
Date: Mon, 12 Sep 2011 01:47:42 +0200

So, the problem here seems simply to be that we blow up the stack by
recursing so ridiculously deep?  I think?

Looking at mark_object, it seems like it could pretty easily be
rewritten to be non-recursive, just by changing it into a loop, and
using a stack to do visit all the objects.

But that's probably not an Emacs 24.1 thing.

The other question is what other interesting deep-nesting bugs a
structure like that might reveal, so even if we fix the mark_object
case, that might not help us much.  Difficult to say...

-- 
(domestic pets only, the antidote for overdose, milk.)
  bloggy blog http://lars.ingebrigtsen.no/
This bug report was last modified 3 years and 49 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.