From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Barry OReilly Newsgroups: gmane.emacs.bugs Subject: bug#16377: Undo Tree regression: (error "Unrecognized entry in undo list undo-tree-canary") Date: Tue, 21 Jan 2014 19:05:38 -0500 Message-ID: References: <20140108033704.GA16400@c3po> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=047d7b33cdfc852e4504f083e244 X-Trace: ger.gmane.org 1390349162 16029 80.91.229.3 (22 Jan 2014 00:06:02 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 22 Jan 2014 00:06:02 +0000 (UTC) Cc: 16377@debbugs.gnu.org To: Toby Cubitt Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Jan 22 01:06:08 2014 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1W5lKa-0001cg-Ce for geb-bug-gnu-emacs@m.gmane.org; Wed, 22 Jan 2014 01:06:08 +0100 Original-Received: from localhost ([::1]:32830 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W5lKZ-0004hb-RI for geb-bug-gnu-emacs@m.gmane.org; Tue, 21 Jan 2014 19:06:07 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44605) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W5lKV-0004hU-Sj for bug-gnu-emacs@gnu.org; Tue, 21 Jan 2014 19:06:04 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1W5lKU-0002kx-Vc for bug-gnu-emacs@gnu.org; Tue, 21 Jan 2014 19:06:03 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:45931) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W5lKU-0002kV-Re for bug-gnu-emacs@gnu.org; Tue, 21 Jan 2014 19:06:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1W5lKU-0004vS-JJ for bug-gnu-emacs@gnu.org; Tue, 21 Jan 2014 19:06:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Barry OReilly Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 22 Jan 2014 00:06:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 16377 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: X-Debbugs-Original-Cc: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.139034914418909 (code B ref -1); Wed, 22 Jan 2014 00:06:02 +0000 Original-Received: (at submit) by debbugs.gnu.org; 22 Jan 2014 00:05:44 +0000 Original-Received: from localhost ([127.0.0.1]:59950 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1W5lKC-0004ut-BN for submit@debbugs.gnu.org; Tue, 21 Jan 2014 19:05:44 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:42849) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1W5lKB-0004um-5B for submit@debbugs.gnu.org; Tue, 21 Jan 2014 19:05:43 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1W5lK9-0002QP-VK for submit@debbugs.gnu.org; Tue, 21 Jan 2014 19:05:42 -0500 Original-Received: from lists.gnu.org ([2001:4830:134:3::11]:50423) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W5lK9-0002QL-Qh for submit@debbugs.gnu.org; Tue, 21 Jan 2014 19:05:41 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44571) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W5lK8-0004gW-Sf for bug-gnu-emacs@gnu.org; Tue, 21 Jan 2014 19:05:41 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1W5lK7-0002Q7-RU for bug-gnu-emacs@gnu.org; Tue, 21 Jan 2014 19:05:40 -0500 Original-Received: from mail-oa0-x236.google.com ([2607:f8b0:4003:c02::236]:57121) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W5lK7-0002Py-FB for bug-gnu-emacs@gnu.org; Tue, 21 Jan 2014 19:05:39 -0500 Original-Received: by mail-oa0-f54.google.com with SMTP id i4so3430247oah.13 for ; Tue, 21 Jan 2014 16:05:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=A1d48rq/J+LtgiNqLF0l011O8AtPZLMFDXt1yCoQqCg=; b=k2/sCO/Ik2m2mSNBN/Oc7IasJ/fXzWOATyuoxjjpnom1RIK6wJna+xdchOITEXjiPz sjazghzJgxkY6z3KnvL2ZivEaC4v0cuclk/firtppOechzPMRBGv6ybZA96UcHBsYmAC JdycYvZVEJ4DhmvdKa7Ke0PqL6ZsN2vyTXbmdR2jmb+LtzwgbwPsKypjJ8V2ByC84bhJ 9YwXDxpkRQjBVJbptg0T495GIxPbWUfsbKc9zzCMjEueLZJS5ekBfHKgMzsLx9cn7aBy Pz1VDoM9QNWa+yNGuo7Poljr+s5qMMy9qc3y3pk9w8V5E1VtOtFbUy3zHZpWnZnXhg0s FbMQ== X-Received: by 10.60.137.201 with SMTP id qk9mr14184339oeb.41.1390349138601; Tue, 21 Jan 2014 16:05:38 -0800 (PST) Original-Received: by 10.76.21.84 with HTTP; Tue, 21 Jan 2014 16:05:38 -0800 (PST) In-Reply-To: <20140108033704.GA16400@c3po> X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:83862 Archived-At: --047d7b33cdfc852e4504f083e244 Content-Type: text/plain; charset=ISO-8859-1 > The "Unrecognised entry" error suggests the undo-tree-canary symbol > has somehow ended up in a `buffer-undo-tree' entry. You mean "buffer-undo-list" not "buffer-undo-tree" right? I checked Emacs 24.3 and as I suspected it's quite easy to make undo-tree-canary appear in the buffer-undo-list. What changed is the error checking in core Emacs. If you expected that undo-tree-canary would never be there between commands, that has not been so for some time. Could you tell me more about the purpose of undo-tree-canary? --047d7b33cdfc852e4504f083e244 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
> The "Unrecognised entry" error suggests the= undo-tree-canary symbol
> has somehow ended up in a `buffer-undo-tre= e' entry.

You mean "buffer-undo-list" not "buffer= -undo-tree" right?

I checked Emacs 24.3 and as I suspected it's quite easy to make
= undo-tree-canary appear in the buffer-undo-list. What changed is the
err= or checking in core Emacs. If you expected that undo-tree-canary
would n= ever be there between commands, that has not been so for some
time.

Could you tell me more about the purpose of undo-tree-canary?<= br>
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