From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#46908: 28.0.50; Dozens of spurious markers in buffer-undo-list Date: Sat, 06 Mar 2021 09:48:35 +0200 Message-ID: <83y2f0wwmk.fsf@gnu.org> 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> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39788"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 46908@debbugs.gnu.org, casouri@gmail.com To: Michael Heerdegen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Mar 06 08:49:08 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 1lIRgS-000AHr-SQ for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 06 Mar 2021 08:49:08 +0100 Original-Received: from localhost ([::1]:58766 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lIRgR-00024s-Ue for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 06 Mar 2021 02:49:07 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46048) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lIRgM-00024k-8V for bug-gnu-emacs@gnu.org; Sat, 06 Mar 2021 02:49:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:52621) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lIRgL-0001my-VB for bug-gnu-emacs@gnu.org; Sat, 06 Mar 2021 02:49:01 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lIRgL-00050l-TW for bug-gnu-emacs@gnu.org; Sat, 06 Mar 2021 02:49:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 06 Mar 2021 07:49:01 +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=B46908.161501693519251 (code B ref 46908); Sat, 06 Mar 2021 07:49:01 +0000 Original-Received: (at 46908) by debbugs.gnu.org; 6 Mar 2021 07:48:55 +0000 Original-Received: from localhost ([127.0.0.1]:35934 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lIRgF-00050R-He for submit@debbugs.gnu.org; Sat, 06 Mar 2021 02:48:55 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:56386) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lIRgD-00050C-Mo for 46908@debbugs.gnu.org; Sat, 06 Mar 2021 02:48:53 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:34723) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lIRg8-0001c3-4M; Sat, 06 Mar 2021 02:48:48 -0500 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:2991 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1lIRg7-0002wf-IH; Sat, 06 Mar 2021 02:48:47 -0500 In-Reply-To: <87y2f1m7ez.fsf@web.de> (message from Michael Heerdegen on Sat, 06 Mar 2021 01:51:00 +0100) 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:201598 Archived-At: > From: Michael Heerdegen > Date: Sat, 06 Mar 2021 01:51:00 +0100 > Cc: 46908@debbugs.gnu.org, Yuan Fu > > My question is what amount of that is pathological. A lot of code > creates markers "on the fly", a lot, e.g. jit-lock or yank (push-mark) > or display-buffer. When undo is performed before gc is run, they end in > buffer-undo-list. > > Does making a marker point to nil with `set-marker' then make it > suitable for garbage collection? I guess not. GC compacts the buffer's undo-list, and that is supposed to remove those entries. Doesn't it?