From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Pip Cet Newsgroups: gmane.emacs.bugs Subject: bug#42832: 28.0.50; "Bus error" when compiling Emacs now on Debian bullseye Date: Wed, 12 Aug 2020 21:42:50 +0000 Message-ID: References: <878sejlrfd.fsf@gnus.org> <87zh6zk9m2.fsf@gnus.org> <87tux7k97r.fsf@gnus.org> <83364rog0t.fsf@gnu.org> <87lfijk7y4.fsf@gnus.org> <87h7t7k6ke.fsf@gnus.org> <87d03vk6am.fsf@gnus.org> <50a72536-c274-9a69-2b03-d82154f3e20c@cs.ucla.edu> <878sejk2wo.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="17797"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 42832@debbugs.gnu.org, Paul Eggert To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed Aug 12 23:44:11 2020 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 1k5yXa-0004XU-JT for geb-bug-gnu-emacs@m.gmane-mx.org; 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Wed, 12 Aug 2020 21:44:02 +0000 Original-Received: (at 42832) by debbugs.gnu.org; 12 Aug 2020 21:43:35 +0000 Original-Received: from localhost ([127.0.0.1]:45720 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1k5yX0-0003n8-Va for submit@debbugs.gnu.org; Wed, 12 Aug 2020 17:43:35 -0400 Original-Received: from mail-oi1-f194.google.com ([209.85.167.194]:42386) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1k5yWy-0003mv-Gq for 42832@debbugs.gnu.org; Wed, 12 Aug 2020 17:43:33 -0400 Original-Received: by mail-oi1-f194.google.com with SMTP id j7so3191979oij.9 for <42832@debbugs.gnu.org>; Wed, 12 Aug 2020 14:43:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=H7g7CpODDHL9r+6214Q5B3JDoTphZOJ/VCl/mkcuL0Y=; b=DGDDas3zfGjmnuBedw5BHmzmyvY/QieVyPiebGmQUb2K3aHna4l9htMJ6Ua6tkQ7D5 MpHtOlpt38dV9X0jHJMhI9Ze4SUnu0xl61JXf/4xB8aNK/nw6ysecbtJWzZMS1+bYM15 v6rGRkp96tmiO0ic0sE94CpFRZ5gq83a+mBJ1DWWB9qITTVd2jgKwssDdA6AjdTy+yUL YQgjSg/CQ132xxYF86ij90TcxGQJRrnpMVMFcRJHOWQgUWU9kr1nxQ43DQgK10I3nKQZ mMH+QzsHNI7HjGtIbgtsG/idz1KioqUCqDFHVNjs0fe53oVaQCtCUAFWwgHpwCUjkXlK nNEQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=H7g7CpODDHL9r+6214Q5B3JDoTphZOJ/VCl/mkcuL0Y=; b=BLNiX/CD9GPOm4zDkIk/dWDsDyZ6H+6yJnFuFbH9RNYWUSqDQOGoh9c+NaeiFqFrRJ quU5H2Mkp9MjMMhrmimTw1e9gyqY1NU/yIhYsHOlCPqJ6mBgE4mwYyHN8E7zVUXbDvO+ t9m9t+cOEtwrnmFUoweXO2sVIQxmdPKqYxr5lypTyoWXub2/i0qsHL0taptBB4KTEsQF KFPA9AL6Pn+zWtR4b/Kfsyc+HuhCThrvw//w3ftpsq24zaYbV5WP5SjfXhzZwqrEWJKf VAjwuyXUZlJgnog89mMM0kV5Uci848d3KL4/r/AWHKCOVbOvRMfGEF7lseh3YelAOUA0 BqxQ== X-Gm-Message-State: AOAM532e61zlf1YGkbXxJNzau+XQrOfE3Z6MBPFpGCZ93XMvZK5/yiKc X6JFqH6ToJ9QVpd9ozKNitldcpiX3vILZq+2Kkg= X-Google-Smtp-Source: ABdhPJwplDQIeHu5kc3anD3rhe+8D7FwHwz46JQD0zxBCpXnjFQhz64424HC7lHaKYWoSdVIcOcoByj3PRqnUBs/QPs= X-Received: by 2002:aca:5f45:: with SMTP id t66mr962298oib.122.1597268606649; Wed, 12 Aug 2020 14:43:26 -0700 (PDT) In-Reply-To: <878sejk2wo.fsf@gnus.org> 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:184880 Archived-At: On Wed, Aug 12, 2020 at 8:48 PM Lars Ingebrigtsen wrote: > Paul Eggert writes: > > > A quick workaround might be to revert that particular commit; could > > you try the attached patch? It passes "make check" for me. > > Yup; with that patch applied, the bus error goes away. That is strange. > But it's an odd problem -- I've tried building on three machines now, > and it only fails on one. The machine it fails on and one it works on > are both Debian bullseye, both with the same compiler version, etc. Same sysctl settings, too? In particular, address randomization appears to be enabled, does this also happen if you disable it (echo 0 | sudo tee /proc/sys/kernel/randomize_va_space) ? > And > on the one machine it does fail on, it only fails when saying "make -j2" > or higher. > > So for all I know, there is some kind of very strange hardware error on > that machine... although that's looking kinda unlikely now. I'm thinking it might "simply" be a very timing-sensitive issue, which would exonerate me :-)