From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Pip Cet Newsgroups: gmane.emacs.bugs Subject: bug#41755: feature/native-comp (master?): temacs crash in GC during mark phase Date: Mon, 8 Jun 2020 06:41:55 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="22482"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Paul Eggert , 41755@debbugs.gnu.org, Andrea Corallo To: Nicolas =?UTF-8?Q?B=C3=A9rtolo?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Jun 08 08:43:13 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 1jiBV3-0005kg-2y for geb-bug-gnu-emacs@m.gmane-mx.org; 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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:content-transfer-encoding; bh=8vJDhgrXn8+IcVfvsp4Td1enBqdUDYy5lZK3zRYl7pg=; b=AlQFOvvCcuzfOKnNXU17IO4BJcWwJl7nk7qxrd/5z3sWmOb6GktdFt5cTEzO6+sKry ZqSblVv0L81rHefDVDFrVqDFQgGwxfvTi6mpl7AALZ4PzXzikQZlE2eove6Hiz41NaC0 A9PNUapGtpV8gQTTD51x7GB3mbdz/WW3XI3iulFFbT6dTWLD/IfsPvJTYfmSFcKb6JMS cT/O7WZmKOEOgZMw+nxqkXs0U0pe8ehvcqm7FAHhhZ9Xm61DzQBlQEBaRenLvjgRVI0C P3YLQIJmAfdF/W/BOZ0elqHBuW/tQR030YhAfNalKRNbt4znhXdREEIhYwZCggd5SZUq N+pQ== X-Gm-Message-State: AOAM531sXa3VGJofmzLirtOJX2F2J3YIsjHexKYS+axvR+NsW1K8F5QR V/V0Im3jP3Qm1gT9I4NnK8c/IgLdX3NCq1Z+7dM= X-Google-Smtp-Source: ABdhPJyZlw5/HeXCP4771ZYww0l98qDLw8ulXVHLY2XeyqpLUfr+PFAVic+a4kmHDWAW5fHl4sDi+Dc0v55EFQov5h0= X-Received: by 2002:a4a:bc8c:: with SMTP id m12mr726430oop.44.1591598551600; Sun, 07 Jun 2020 23:42:31 -0700 (PDT) In-Reply-To: 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:181727 Archived-At: On Mon, Jun 8, 2020 at 3:39 AM Nicolas B=C3=A9rtolo wrote: > I think I found the bug. Summary: A heap-based cons points to a > stack-based string. The bug was introduced by: Good catch! I'm wondering what we could do to make such bugs easier to find... > The attached patch fixes this case. There may be similar cases in other p= arts of > the code. I'll take a look. Would GC_CHECK_MARKED_OBJECTS have caught this?