From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.bugs Subject: bug#46908: 28.0.50; Dozens of spurious markers in buffer-undo-list Date: Mon, 8 Mar 2021 09:26:42 +0100 Message-ID: <5e12eae1-94fd-d2c7-923d-f4dbabf3da52@gmx.at> References: <87o8fzn9fa.fsf@web.de> <0ca78c1b-7737-8a87-9edc-deaa551677fa@gmx.at> <87wnumswhr.fsf@web.de> <6ccba248-7643-280a-4560-88872fb08457@gmx.at> <87sg5asr6k.fsf@web.de> <7b04f87b-8d7a-e151-5b4a-d77bd6ea1506@gmx.at> <87y2f1m7ez.fsf@web.de> <87mtve2t2q.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="13456"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 46908@debbugs.gnu.org, Yuan Fu To: Michael Heerdegen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Mar 08 09:27:22 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 1lJBEW-0003Na-Bn for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 08 Mar 2021 09:27:20 +0100 Original-Received: from localhost ([::1]:47886 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lJBEV-0003MQ-Ak for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 08 Mar 2021 03:27:19 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:40594) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lJBEF-0003LG-6R for bug-gnu-emacs@gnu.org; Mon, 08 Mar 2021 03:27:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:58726) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lJBEE-0000de-Um for bug-gnu-emacs@gnu.org; Mon, 08 Mar 2021 03:27:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lJBEE-0000NJ-RE for bug-gnu-emacs@gnu.org; Mon, 08 Mar 2021 03:27:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: martin rudalics Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 08 Mar 2021 08:27:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 46908 X-GNU-PR-Package: emacs Original-Received: via spool by 46908-submit@debbugs.gnu.org id=B46908.16151920141397 (code B ref 46908); Mon, 08 Mar 2021 08:27:02 +0000 Original-Received: (at 46908) by debbugs.gnu.org; 8 Mar 2021 08:26:54 +0000 Original-Received: from localhost ([127.0.0.1]:42034 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lJBE6-0000MT-F2 for submit@debbugs.gnu.org; Mon, 08 Mar 2021 03:26:54 -0500 Original-Received: from mout.gmx.net ([212.227.15.15]:44059) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lJBE1-0000MC-4r for 46908@debbugs.gnu.org; Mon, 08 Mar 2021 03:26:53 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1615192003; bh=xgDqiatJVg3OALjpEFrG51G9oOsjF1NrhNbf9sETH6w=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=OUZcM5+c1m3ywgOUZXeqFizv3ecyLNFZVYqKXHmlCeH5/nu9na9pm1onDKp12kMgw mOgiLjh2POPJI+dCl3bobTp5M8cV6RES2RcRSarmaNf2m/B1D/7Xl5Kw9iFMmBSgbL OunT3m2Fws9keg5eGUrkvl9W8lI8HjDA8IEUmav8= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Original-Received: from [192.168.1.100] ([212.95.5.150]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MkHQh-1m2zNL3KtV-00khMW; Mon, 08 Mar 2021 09:26:42 +0100 In-Reply-To: <87mtve2t2q.fsf@web.de> Content-Language: en-US X-Provags-ID: V03:K1:UF3ytH7Yhu1ClxJxaWcXu1zy1KV2RjttOmuwU0ck3wI0SKbjeTp jpKKGgDVTxGuW+I53YKdnv4J3Uca6gX3CMZToZSklx79WusUJSZcm2EGKp44ig5zaQa7QNm lxbCDuHfNnNinpuyG7eH3/3Z1hNs9swnWtCKXmg5DZw8OqsQIfTAd6zrghh8P8NrIhc63aC +0ICB/bCBV+GuYj1fSjRw== X-UI-Out-Filterresults: notjunk:1;V03:K0:ze/y7T1OuFE=:vCWEOI/r/mu0BR22VKx4JL WoLeheCyLUPTiX6fXDfzPbD7NlobTTsaEXb8er4vVtBifsAweXc88sqht+YsKoYOT1BFRduDl 2hKKjLnxKqvTshn/dR8b2oydfoCKHoAKDg51B4apXCoCeF1dFhqXtr+VcVJHjpA/1cPZF98EB MyfJV0UpgSgyfCvaaBwNr8xGIciAF2hoKB/2//PR7Gab9P64A1Qn9pHW1rzE9XFprKHSG/nX6 6p7F/YhEAUCovzCDPJvo41QzG+QMjPmzcwg3AiJroXsmJYOOoiU/+CQM0/3taRUN0EmseAQf3 aGRy4geIi0hY4h/Gur985FiwwA3TK7PJcSrgngymVQrv97MQawwMq04akOZ+BRvSHRNhDv6Q3 bRFq9ibxkonICTMxQpKadWZwlZtMArgv3uGMtzeFzcRBZHs0xVhSZ0vDWDGZuHf1RQNGFecl2 glfgvGTLDERQYpx17j/AnrufIst6KyBOAf2xbNRAngHHonkTM3Te3WDMobEdStz8u2Qe3s2mh 9Ofpz4Qynqh6AFW92KyZQLdMULm9gPpWKDZ7xqqs6kdqAoZaKqqRe+REcdBLk7sBETr15auvw tNe2kt4+r4+6iZHWR7lkqzxVrOFV3JGFlLh0JFU5Vq8AHvzD5VdZDWywl57X/1ypqpe+INmFE iz+sx7BdSrC13dSBHojfPyHlEO/BQq+EBTEfT9zeg1kaYTIIhHTInhsw4BHpO5RdyumrhX2XQ 16Rsq3e9b3nz3SfOLeH2Z4d7QK1E2aw2feXIxc3V8zVdIwHLAimI5cuCl5ONbqWqL+4IVtH7 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:201813 Archived-At: >> I cannot confirm that, no. I can reproduce the issue in a newly built >> Emacs 27 as well as in the 27 that comes with Debian. "It" again being >> `count-markers-in-buffer-undo-list'. > > The issue disappears (marker count stays constantly less than 3) if I > comment out these two expressions in `push-mark': > > (add-to-history 'mark-ring (copy-marker (mark-marker)) mark-ring-max t) > > (add-to-history > 'global-mark-ring (copy-marker (mark-marker)) global-mark-ring-max t) > > I think we really have a problem here: when those newly created markers > are thrown out of the rings, they are not invalidated, and are also > still referenced by buffer-undo-list, so they will live forever, AFAIU. So you mean that we really have two problems here, both caused by `push-mark'? IIUC a marker is "thrown out of the rings" when its buffer gets deleted or a marker is pushed on a "full" ring. I suppose that "invalidating" markers in these cases should be safe. But how comes that `add-to-history' affects `buffer-undo-list'? martin