From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Fix to long-standing crashes in GC Date: 13 May 2004 15:19:26 -0400 Sender: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Message-ID: <87brks5e94.fsf-monnier+emacs@gnu.org> References: <40A3BC23.8060000@math.ku.dk> NNTP-Posting-Host: deer.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1084476093 25797 80.91.224.253 (13 May 2004 19:21:33 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Thu, 13 May 2004 19:21:33 +0000 (UTC) Cc: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Thu May 13 21:21:24 2004 Return-path: Original-Received: from quimby.gnus.org ([80.91.224.244]) by deer.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 1BOLlj-0000MR-00 for ; Thu, 13 May 2004 21:21:23 +0200 Original-Received: from monty-python.gnu.org ([199.232.76.173]) by quimby.gnus.org with esmtp (Exim 3.35 #1 (Debian)) id 1BOLlj-0006H6-00 for ; Thu, 13 May 2004 21:21:23 +0200 Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.34) id 1BOLkh-0003RV-VB for emacs-devel@quimby.gnus.org; Thu, 13 May 2004 15:20:20 -0400 Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.34) id 1BOLkR-0003Nv-Gb for emacs-devel@gnu.org; Thu, 13 May 2004 15:20:03 -0400 Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.34) id 1BOLju-0003C6-PB for emacs-devel@gnu.org; Thu, 13 May 2004 15:20:02 -0400 Original-Received: from [209.226.175.74] (helo=tomts20-srv.bellnexxia.net) by monty-python.gnu.org with esmtp (Exim 4.34) id 1BOLju-0003Bq-DR for emacs-devel@gnu.org; Thu, 13 May 2004 15:19:30 -0400 Original-Received: from alfajor ([67.68.218.161]) by tomts20-srv.bellnexxia.net (InterMail vM.5.01.06.05 201-253-122-130-105-20030824) with ESMTP id <20040513191929.DWHC29133.tomts20-srv.bellnexxia.net@alfajor>; Thu, 13 May 2004 15:19:29 -0400 Original-Received: by alfajor (Postfix, from userid 1000) id 4EC58D74ED; Thu, 13 May 2004 15:19:26 -0400 (EDT) Original-To: Lars Hansen In-Reply-To: <40A3BC23.8060000@math.ku.dk> Original-Lines: 12 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3.50 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.4 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+emacs-devel=quimby.gnus.org@gnu.org Xref: main.gmane.org gmane.emacs.devel:23340 X-Report-Spam: http://spam.gmane.org/gmane.emacs.devel:23340 > interested, but I have not been able produce a test case. To me it looks as > if GC is involved, but I am unexperienced with gdb. When Kim told he had When the GC seems to be involved what it typically means that there's a memory corruption somewhere. The only reason why the GC gets involved is because the GC traverses all your memory, so it basically does (as a side effect) some kind of sanity check, so memory corruption is usually detected during GC. GC bugs exist as well, of course, but they're pretty rare (or rather they tend to manifest pretty often, so they get fixed fairly quikly). Stefan