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.bugs Subject: bug#52461: spontaneous crash with portable dumper Date: Mon, 13 Dec 2021 18:52:51 +0200 Message-ID: <83zgp4la58.fsf@gnu.org> References: <83czm0my1u.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="10435"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 52461@debbugs.gnu.org To: Pip Cet Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Dec 13 17:54:26 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1mwoan-0002OQ-Ip for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 13 Dec 2021 17:54:25 +0100 Original-Received: from localhost ([::1]:57420 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mwoal-0004F9-Q6 for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 13 Dec 2021 11:54:23 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:55248) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mwoaR-0004Dk-Na for bug-gnu-emacs@gnu.org; Mon, 13 Dec 2021 11:54:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:45124) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mwoaR-0006cm-En for bug-gnu-emacs@gnu.org; Mon, 13 Dec 2021 11:54:03 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mwoaQ-0007Ov-0y for bug-gnu-emacs@gnu.org; Mon, 13 Dec 2021 11:54:03 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 13 Dec 2021 16:54:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 52461 X-GNU-PR-Package: emacs Original-Received: via spool by 52461-submit@debbugs.gnu.org id=B52461.163941438428377 (code B ref 52461); Mon, 13 Dec 2021 16:54:01 +0000 Original-Received: (at 52461) by debbugs.gnu.org; 13 Dec 2021 16:53:04 +0000 Original-Received: from localhost ([127.0.0.1]:56670 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mwoZT-0007Nd-Vj for submit@debbugs.gnu.org; Mon, 13 Dec 2021 11:53:04 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:54168) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mwoZT-0007N8-2G for 52461@debbugs.gnu.org; Mon, 13 Dec 2021 11:53:03 -0500 Original-Received: from [2001:470:142:3::e] (port=36546 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mwoZL-0006Sr-TT; Mon, 13 Dec 2021 11:52:56 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=NZVT28qp2kiPlGIjCtnc3nICozD9SxXt32qKOeggN2g=; b=qRhJQoJPyx9q yda/Ulm/ggKQs60vhE4xAu9gQcQnzsqDrxonDYMz7ZnUKeDZwIqvPDsG/xeFYP88/2U7dMhkUKq0o /1YplQxbW+US3DwL/Xr4Ss6ud5CB/wFhfENEP1U2wY2MsqK3NVpazTwTw+FUC5ehLZF+jje9XfPwe xZSXZ4n15CM9sMkGkbIrGJyPQWgcYWPbD8O5joj8mCOcVmEvhBDoUGS7Yuypwth50IdyUPAqdWpw/ FrijPF9TyKpqrK6Yu0A50erfRRm4HRQzXnFXcTJNQgpnN6M5bP2K4HaIRqUBYICkS6coCF1yQDJUW n1JgDBIP3N7jxKs3mQzHtA==; Original-Received: from [87.69.77.57] (port=1388 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mwoZL-0007bQ-OP; Mon, 13 Dec 2021 11:52:56 -0500 In-Reply-To: (message from Pip Cet on Mon, 13 Dec 2021 14:43:55 +0000) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:222328 Archived-At: > From: Pip Cet > Date: Mon, 13 Dec 2021 14:43:55 +0000 > Cc: YAMAMOTO Mitsuharu , 52461@debbugs.gnu.org > > What we can try is debugging the crashing temacs binary, setting a > breakpoint to the point where define-charset-internal calls xpalloc > (in a very strange manner), at about line 1126 in charset.c, and zero > the memory after the call by executing > memset (new_table, 0, new_size * sizeof (new_table[0])) > in the debugger (I don't use lldb so I'm not sure precisely how to do > that), then continuing to the memcpy. > > If that fixes things, we should make the obvious change, I think. Sounds like a plan, thanks.