Re: revert-buffer fails on cvs controlled .tex file

[Richard Stallman <rms@gnu.org>]

Would someone please fix this, then ack?

Message-ID: <1ce81abb0712011352n550ce34s358f29a5bd8c8ad9@mail.gmail.com>
Date: Sat, 1 Dec 2007 16:52:05 -0500
From: "David Rideout" <dprideout@gmail.com>
To: bug-gnu-emacs@gnu.org
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
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Subject: revert-buffer fails on cvs controlled .tex file

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list,
and to the gnu.emacs.bug news group.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:
-------------------------------------------------------------------------------
First I launch emacs, loading a cvs controlled .tex file 'turtles.tex':

emacs -q -no-site-file turtles.tex

The status bar reads 'CVS:1.35', so emacs recognizes this file as controlled
by cvs.

Then I enter M-x revert-buffer.  I answer 'yes' to the prompt, and get an
error:

coding-system-get: Wrong type argument: arrayp, nil

The file does not revert.
-------------------------------------------------------------------------------
If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/share/emacs/22.1/etc/DEBUG for instructions.


In GNU Emacs 22.1.1 (i386-redhat-linux-gnu, GTK+ Version 2.10.14)
 of 2007-11-06 on xenbuilder2.fedora.redhat.com
Windowing system distributor `The X.Org Foundation', version 11.0.10300000
configured using `configure  '--build=i386-redhat-linux-gnu'
'--host=i386-redhat-linux-gnu' '--target=i386-redhat-linux-gnu'
'--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr'
'--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc'
'--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib'
'--libexecdir=/usr/libexec' '--localstatedir=/var'
'--sharedstatedir=/usr/com' '--mandir=/usr/share/man'
'--infodir=/usr/share/info' '--with-pop' '--with-sound' '--with-gtk'
'build_alias=i386-redhat-linux-gnu' 'host_alias=i386-redhat-linux-gnu'
'target_alias=i386-redhat-linux-gnu' 'CFLAGS=-DMAIL_USE_LOCKF
-DSYSTEM_PURESIZE_EXTRA=16777216 -O2 -g -pipe -Wall
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions --param=ssp-buffer-size=4 -m32
-march=i386 -mtune=generic -fasynchronous-unwind-tables''

Important settings:
  value of $LC_ALL: C
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: LaTeX

Minor modes in effect:
  shell-dirtrack-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: identity

Recent input:
<help-echo> <down-mouse-1> <mouse-1> M-x r e c <backspace>
v e <tab> r <tab> t <tab> <return> y e s <return> <help-echo>
<help-echo> <down-mouse-1> <mouse-movement> <mouse-1>
M-x r e v e r t <tab> <return> y e s <return> <help-echo>
<help-echo> <help-echo> <menu-bar> <buffer> "*Messages*"
<down-mouse-1> <mouse-movement> <mouse-movement> <drag-mouse-1>
<help-echo> <menu-bar> <buffer> "turtles.tex" <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <menu-bar> <help-menu> <report-emacs-b
ug>

Recent messages:
Loading tex-mode...
Loading regexp-opt...done
Loading tex-mode...done
Loading vc-cvs...done
For information about the GNU Project and its goals, type C-h C-p.
Making completion list...
Loading help-mode...done
Making completion list...
coding-system-get: Wrong type argument: arrayp, nil [2 times]
Loading emacsbug...done