From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: MPS: assertion failed: header_type (h) != IGC_OBJ_FWD Date: Tue, 16 Jul 2024 16:38:36 +0300 Message-ID: <86zfqhh2xv.fsf@gnu.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="40016"; mail-complaints-to="usenet@ciao.gmane.io" Cc: pipcet@protonmail.com, emacs-devel@gnu.org, eller.helmut@gmail.com To: Gerd =?utf-8?Q?M=C3=B6llmann?= , Paul Eggert Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Jul 16 15:39:41 2024 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 1sTiP6-000A9g-VZ for ged-emacs-devel@m.gmane-mx.org; Tue, 16 Jul 2024 15:39:40 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sTiOP-0002Fo-0m; Tue, 16 Jul 2024 09:38:57 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sTiOJ-0001v9-Gv for emacs-devel@gnu.org; Tue, 16 Jul 2024 09:38:52 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sTiOG-0006cC-DN; Tue, 16 Jul 2024 09:38:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=KftINtpQSEw3EceaDNjaFDk5RjHAmszkEfJ3Jp9aAJU=; b=ooUYjP1sudmB8w/p572Q xztF42jBsi+iDCSa9Ucsu5MZccWVS9Ml5D5OxNIqRQfuuiY24bz7rUEegDugzsUGAIMhinvukVEH4 3R9LAQ0B6OaanLztPvEgPOP1YwxAQqvR6BvOZwtbmNknyJp3vL/+crTiqnqTf8su5aI/HVJxQYUDy +Nzdh5owimYuQNs/BSb6sw/KjipqXDPgNbwcHJfxMx9HB+NkUZ/QmOvtImUoDy1JJOJKSaSc0K2ca k61Qz1t6dPBCPm7YhiYQtbQqSQnk47WGsB1PgqdwoISFWDeuTphE36gwxq4jlHIitfuiqWBSJDu2M ib9No/s9upTcyg==; In-Reply-To: (message from Gerd =?utf-8?Q?M=C3=B6llmann?= on Tue, 16 Jul 2024 15:02:24 +0200) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:321702 Archived-At: > From: Gerd Möllmann > Cc: Emacs Devel , Helmut Eller > Date: Tue, 16 Jul 2024 15:02:24 +0200 > > The handlerlist_sentinel didn't help, BTW, but I had another idea today. > The function scan_ambig assumes that that references are aligned on word > boundaries (8 bytes here). I haven't checked (and I'm too lazy to check > :-)), but that assumption doesn't have to be true. I think it _is_ true. At least the original allocation code in alloc.c made sure it was true. Paul, am I right?