From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Failing to GC killed buffers considered harmful Date: Sun, 29 Mar 2020 12:45:48 -0400 Message-ID: References: <838sjj5jg9.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="60530"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Daniel Colascione , Pip Cet , emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Mar 29 18:46:38 2020 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jIb54-000FgA-0T for ged-emacs-devel@m.gmane-mx.org; Sun, 29 Mar 2020 18:46:38 +0200 Original-Received: from localhost ([::1]:39560 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jIb52-0001aU-Va for ged-emacs-devel@m.gmane-mx.org; Sun, 29 Mar 2020 12:46:36 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:47270) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jIb4R-0000si-Ju for emacs-devel@gnu.org; Sun, 29 Mar 2020 12:46:00 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jIb4O-0005bn-KI for emacs-devel@gnu.org; Sun, 29 Mar 2020 12:45:58 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:11301) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jIb4K-0005VR-N0; Sun, 29 Mar 2020 12:45:52 -0400 Original-Received: from pmg3.iro.umontreal.ca (localhost [127.0.0.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id A82DF44F8B8; Sun, 29 Mar 2020 12:45:51 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg3.iro.umontreal.ca (Proxmox) with ESMTP id 27C4344F81E; Sun, 29 Mar 2020 12:45:50 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1585500350; bh=wgOXm8E9Apt2bkyvF9V7wIOlYF1sW5RJUdQeLbQYMSw=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=b8WWAIvcB1RQRVP4R8s3Jv1onXs/DS97L+QZ/mP4QDzRMGvc1+gZ7d3E0v/dYGCTj gsL+yHJgvCcADukct3MP6cYOxgGfxL3xcFDqiAmH8QF1nPpoxbX/UlUOHDSZxUyJJV JFqxYRlpMLBfXOR/jZXx1P/RdcoMgaYDwgYXEq7FZBr7oRmGpm0rZLNFIkdDhCO6hy GuuYzy+2PJx1OrMLMH+vJBnuuYBT+oWpU6dAaVatz6zV/MXMpjkfyEeSpgL0UaF0wT /4jJiiIWPxgAU4sbKutbnf0pRfndAyB730U6bCtWoV5vc4Eoc3dk4oIC2SUbKAWux0 /qW20pB9TUf/A== Original-Received: from alfajor (unknown [104.247.241.114]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id AB1701208C1; Sun, 29 Mar 2020 12:45:49 -0400 (EDT) In-Reply-To: <838sjj5jg9.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 29 Mar 2020 17:23:02 +0300") X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 132.204.25.50 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:245945 Archived-At: > Another idea is to avoid dumping such buffers. But I couldn't find a > facility for doing that safely; simply having dump_buffer return > causes an assertion violation later: Could we try and write out buffers such that they are read back as something else (e.g. a special record with type `dead-dumped-buffer`)? Stefan