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#41321: 27.0.91; Emacs aborts due to invalid pseudovector objects Date: Sun, 17 May 2020 10:56:28 +0000 Message-ID: References: <83zha8cgpi.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="17041"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 41321@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun May 17 12:58:10 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 1jaGzh-0004KZ-6I for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 17 May 2020 12:58:09 +0200 Original-Received: from localhost ([::1]:34552 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jaGzg-0003Pp-5F for geb-bug-gnu-emacs@m.gmane-mx.org; 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Sun, 17 May 2020 10:58:02 +0000 Original-Received: (at 41321) by debbugs.gnu.org; 17 May 2020 10:57:12 +0000 Original-Received: from localhost ([127.0.0.1]:42406 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jaGym-0001o7-6S for submit@debbugs.gnu.org; Sun, 17 May 2020 06:57:12 -0400 Original-Received: from mail-ot1-f43.google.com ([209.85.210.43]:37902) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jaGyk-0001nu-SL for 41321@debbugs.gnu.org; Sun, 17 May 2020 06:57:11 -0400 Original-Received: by mail-ot1-f43.google.com with SMTP id w22so5639900otp.5 for <41321@debbugs.gnu.org>; Sun, 17 May 2020 03:57:10 -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=fmFsaWgSwVRHH+lCxrbSoa/tv6zNnIIoTL2Mnnk+uqQ=; b=fpgktwIzbp3d8H7LrH0RilSnwT93Zx3qR0lFK2q9CT1DziZJlmVFYa7FEBRT9JMAXg r41lY3zi21fTHbycBVNScnayu6+VNUayY1LtUjkwVQ1/LlLB7OH2ggbf5lMjYXXsXZWf MmNrm3MewWLT6HNX98v6Go2dCpqhxSrE5cOQ1fMgTolgjr3XEiyOntL9CxZNb2X1Wp7a lYYxg0kr7GKevivhdXbevxCBBlKwPqY2HhFNeQKpUvWDF9taMq0AbMFsUTgHy7Odc1CB sSxZx+mj/WTWqU/hifepebbMHIwOYsWfX8ocjJy8BpEqTuWX0/L7nd4/8A3nF9ND3TcJ a2rw== 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=fmFsaWgSwVRHH+lCxrbSoa/tv6zNnIIoTL2Mnnk+uqQ=; b=TLRwSgv60HU82YjvVQVI8qX2KtMvyja0CKQi2F1CxZQVCkoxuJd20mkisCpfbLOSfE VQqppB8UHzPMirc7XYFg/GN0SSSiraPbpH6HCjnnVtTp10bAHn36REIu28BnS0UI85Vf 4yOsFmtRvi8rUYuIYSuGSk4U6/mPCb1s25hYAQGskkAzhFc/JE9oiwZMG0exm0v731qE 6pkIxKhWwSAa1l3/WiQoRwpimdBM3C9nvFb1P401LpMcCMU23ze4DebC2sFMCdlf2IWt gswSwBDNjZNJfxbdUey3vOYreXxRaX91fATbtgiPbenIpl/BD7s7al/NF1ieiCUyGbhM /O1g== X-Gm-Message-State: AOAM530cc2luJT54oDrdAaM8hoz1AaPMdSUhrRm+7yPuQTwrhIU6BxKR WJ8aTOpERxoYx2jl2lhEVtx6MPJqScLwB94rL7lPfuLA X-Google-Smtp-Source: ABdhPJx6PR9JPl3N7C99lllOl/oee2BmqucIyDmD6gaqvEmWbcWe0VYLVAfrZ0F2BZZFRmoAvEi4QHNTu0N7KRrPGMM= X-Received: by 2002:a9d:6a44:: with SMTP id h4mr4008615otn.287.1589713025005; Sun, 17 May 2020 03:57:05 -0700 (PDT) In-Reply-To: <83zha8cgpi.fsf@gnu.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:180446 Archived-At: On Sat, May 16, 2020 at 10:34 AM Eli Zaretskii wrote: > So far, I've seen this in a C Mode buffer reverted because "git pull" > brought a modified version, and in an Info mode buffer reverted > because the manual was rebuilt after the Texinfo sources were > modified. In the latter case I captured a backtrace, see below. > > The problem seem to involve invalid markers, perhaps markers that were > unchained and put on the free list Even unchained markers shouldn't be put on the free list as long as they're still reachable, so I suspect the problem is more likely to be caused by that. > (witness the PVEC_FREE object that > caused the abort in the backtrace below, where Emacs seems to be > trying to display an error message about an invalid marker). What I would do next is run with a breakpoint on wrong_type_argument (if that's impossible, change the code in CHECK_MARKER to abort upon encountering a PVEC_FREE vector) to see where the reference to the freed pseudovector came from. An undo list, maybe?