From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#30855: 25.3; temacs fails with bus error during garbage collection Date: Tue, 20 Mar 2018 18:40:51 +0200 Message-ID: <83tvtalmy4.fsf@gnu.org> References: <23215.54774.152043.418244@a1i15.kph.uni-mainz.de> <834llboouy.fsf@gnu.org> <23217.5116.912173.630464@a1i15.kph.uni-mainz.de> <83y3imls72.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1521564019 12743 195.159.176.226 (20 Mar 2018 16:40:19 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 20 Mar 2018 16:40:19 +0000 (UTC) Cc: ulm@gentoo.org, eggert@cs.ucla.edu, 30855@debbugs.gnu.org, gentoo-bug@opensource.sf-tec.de To: Andreas Schwab Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Mar 20 17:40:15 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eyKJ4-0003AY-2X for geb-bug-gnu-emacs@m.gmane.org; Tue, 20 Mar 2018 17:40:14 +0100 Original-Received: from localhost ([::1]:50616 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eyKL6-0007WC-LK for geb-bug-gnu-emacs@m.gmane.org; Tue, 20 Mar 2018 12:42:20 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:36817) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eyKKs-0007Tj-L4 for bug-gnu-emacs@gnu.org; Tue, 20 Mar 2018 12:42:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eyKKo-0006tr-Jg for bug-gnu-emacs@gnu.org; Tue, 20 Mar 2018 12:42:06 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:36224) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1eyKKo-0006tm-Fr for bug-gnu-emacs@gnu.org; Tue, 20 Mar 2018 12:42:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1eyKKo-0006V3-6R for bug-gnu-emacs@gnu.org; Tue, 20 Mar 2018 12:42:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 20 Mar 2018 16:42:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 30855 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 30855-submit@debbugs.gnu.org id=B30855.152156408624940 (code B ref 30855); Tue, 20 Mar 2018 16:42:02 +0000 Original-Received: (at 30855) by debbugs.gnu.org; 20 Mar 2018 16:41:26 +0000 Original-Received: from localhost ([127.0.0.1]:44121 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eyKKE-0006UB-48 for submit@debbugs.gnu.org; Tue, 20 Mar 2018 12:41:26 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:45580) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eyKKA-0006Tx-Qo for 30855@debbugs.gnu.org; Tue, 20 Mar 2018 12:41:23 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eyKK1-0006QZ-Nl for 30855@debbugs.gnu.org; Tue, 20 Mar 2018 12:41:17 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:55613) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eyKJU-000625-8c; Tue, 20 Mar 2018 12:40:40 -0400 Original-Received: from [176.228.60.248] (port=4714 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1eyKJT-0005Eo-NM; Tue, 20 Mar 2018 12:40:40 -0400 In-reply-to: (message from Andreas Schwab on Tue, 20 Mar 2018 16:26:19 +0100) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:144457 Archived-At: > From: Andreas Schwab > Cc: Ulrich Mueller , Paul Eggert , 30855@debbugs.gnu.org, gentoo-bug@opensource.sf-tec.de > Date: Tue, 20 Mar 2018 16:26:19 +0100 > > > --- a/src/alloc.c > > +++ b/src/alloc.c > > @@ -4983,7 +4983,8 @@ mark_memory (void *start, void *end) > > for (pp = start; (void *) pp < end; pp += GC_POINTER_ALIGNMENT) > > { > > mark_maybe_pointer (*(void **) pp); > > - mark_maybe_object (*(Lisp_Object *) pp); > > + if ((intptr_t) pp % GCALIGNMENT == 0) > > That should be alignof(Lisp_Object). A Lisp_Object only needs > Lisp_Object alignment. GCALIGNMENT is about the _value_ of a > Lisp_Object (ie. the address of the Lisp object that this Lisp_Object > points to). Right, thanks. Ulrich, please see if that fixes this problem.