bug#23338: 25.0.92; auto-revert-buffers errors

bug#23338: 25.0.92; auto-revert-buffers errors

[Live System User]

Hi,

In my environment, I see the following error:

Error running timer ‘auto-revert-buffers’: (wrong-type-argument
number-or-marker-p nil) [108 times]

How does one go about debugging this?

Thanks.





In GNU Emacs 25.0.92.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.18.7)
 of 2016-03-03 built on copr-builder-919644472.novalocal
Windowing system distributor 'Fedora Project', version 11.0.11799901
Configured using:
 'configure --build=x86_64-redhat-linux-gnu
 --host=x86_64-redhat-linux-gnu --program-prefix=
 --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr
 --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc
 --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64
 --libexecdir=/usr/libexec --localstatedir=/var
 --sharedstatedir=/var/lib --mandir=/usr/share/man
 --infodir=/usr/share/info --with-dbus --with-gif --with-jpeg --with-png
 --with-rsvg --with-tiff --with-xft --with-xpm --with-x-toolkit=gtk3
 --with-gpm=no build_alias=x86_64-redhat-linux-gnu
 host_alias=x86_64-redhat-linux-gnu 'CFLAGS=-DMAIL_USE_LOCKF -O2 -g
 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4
 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
 -m64 -mtune=generic' LDFLAGS=-Wl,-z,relro
 PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS GCONF GSETTINGS NOTIFY
ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11

Important settings:
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Emacs-Lisp

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
Wrote /home/liveuser/.newsrc
Saving /home/liveuser/.newsrc...done
Saving /home/liveuser/.newsrc.eld...
Saving file /home/liveuser/.newsrc.eld...
Wrote /home/liveuser/.newsrc.eld
Saving /home/liveuser/.newsrc.eld...done
Type C-x 1 to delete the help window.
uncompressing cl-seq.el.gz...done
Note: file is write protected
Mark saved where search started

Load-path shadows:
~/.emacs.d/lisp/ntlm hides /usr/share/emacs/25.0.92/lisp/net/ntlm

Features:
(eieio-opt speedbar sb-image ezimage dframe find-func thingatpt
jka-compr noutline outline easy-mmode view kmacro two-column iso-transl
gnus-cite smiley ansi-color shr-color color url-util url-parse url-vars
shr seq dom subr-x browse-url mm-archive gnus-async gnus-bcklg gnus-ml
disp-table cursor-sensor nndraft nnmh nndoc nnfolder utf-7 rfc2104
gnus-agent gnus-srvr gnus-score score-mode nnvirtual gnus-msg gnus-art
mm-uu mml2015 mm-view mml-smime smime dig mailcap nntp gnus-cache debug
network-stream nsm starttls mailalias smtpmail qp character-fold
misearch multi-isearch pp shadow sort mail-extr emacsbug sendmail
epa-file epa derived auth-source cl-seq eieio byte-opt bytecomp
byte-compile cl-extra cconv eieio-core cl-macs gv sieve sieve-mode
sieve-manage password-cache nnir gnus-sum gnus-group gnus-undo
gnus-start gnus-cloud nnimap nnmail mail-source tls gnutls utf7 netrc
parse-time gnus-spec gnus-int gnus-range message idna dired format-spec
rfc822 mml mml-sec epg epg-config mm-decode mm-bodies mm-encode
mail-parse rfc2231 rfc2047 rfc2045 ietf-drums mailabbrev gmm-utils
mailheader gnus-win gnus gnus-ems wid-edit nnoo nnheader gnus-util
mm-util help-fns help-mode easymenu cl-loaddefs pcase cl-lib mail-prsvr
mail-utils time-date mule-util tooltip eldoc electric uniquify
ediff-hook vc-hooks lisp-float-type mwheel x-win term/common-win x-dnd
tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment
elisp-mode lisp-mode prog-mode register page menu-bar rfn-eshadow timer
select scroll-bar mouse jit-lock font-lock syntax facemenu font-core
frame cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan
thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian
slovak czech european ethiopic indian cyrillic chinese charscript
case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer
cl-preloaded nadvice loaddefs button faces cus-face macroexp files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote dbusbind inotify
dynamic-setting system-font-setting font-render-setting move-toolbar gtk
x-toolkit x multi-tty make-network-process emacs)

Memory information:
((conses 16 233991 75812)
 (symbols 48 31446 1101)
 (miscs 40 303 984)
 (strings 32 58638 34238)
 (string-bytes 1 1623908)
 (vectors 16 32901)
 (vector-slots 8 1438681 181564)
 (floats 8 576 1186)
 (intervals 56 2565 692)
 (buffers 976 78)
 (heap 1024 68581 22788))

bug#23338: 25.0.92; auto-revert-buffers errors

[Michael Albinus]

Live System User <nyc4bos@aol.com> writes:

> Hi,

Hi,

> Error running timer ‘auto-revert-buffers’: (wrong-type-argument
> number-or-marker-p nil) [108 times]
>
> How does one go about debugging this?
>
> In GNU Emacs 25.0.92.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.18.7)
>  of 2016-03-03 built on copr-builder-919644472.novalocal

First, pls upgrade Emacs 25.0.92. There have been changes in
autorevert.el recently, which might be related.

If the problem persist, we'll see how to debug. Since it happens in a
timer, best might be to include trace messages into auto-revert-buffers.

> Thanks.

Best regards, Michael.

bug#23338: 25.0.92; auto-revert-buffers errors

[Michael Albinus]

Michael Albinus <michael.albinus@gmx.de> writes:

> Live System User <nyc4bos@aol.com> writes:
>
>> Hi,
>
> Hi,
>
>> Error running timer ‘auto-revert-buffers’: (wrong-type-argument
>> number-or-marker-p nil) [108 times]
>>
>> How does one go about debugging this?
>>
>> In GNU Emacs 25.0.92.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.18.7)
>>  of 2016-03-03 built on copr-builder-919644472.novalocal
>
> First, pls upgrade Emacs 25.0.92. There have been changes in
> autorevert.el recently, which might be related.

Ping.

Best regards, Michael.

bug#23338: 25.0.92; auto-revert-buffers errors

[Live System User]

Michael Albinus <michael.albinus@gmx.de> writes:
Hi,

> Michael Albinus <michael.albinus@gmx.de> writes:
>
>> Live System User <nyc4bos@aol.com> writes:
>>
>>> Hi,
>>
>> Hi,
>>
>>> Error running timer ‘auto-revert-buffers’: (wrong-type-argument
>>> number-or-marker-p nil) [108 times]
>>>
>>> How does one go about debugging this?
>>>
>>> In GNU Emacs 25.0.92.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.18.7)
>>>  of 2016-03-03 built on copr-builder-919644472.novalocal
>>
>> First, pls upgrade Emacs 25.0.92. There have been changes in
>> autorevert.el recently, which might be related.
>
> Ping.

I recently upgraded to GNU Emacs 25.0.93.1 and have not seen this bug.

However, when trying to send this message using Gnus, the prompt
briefly showed in the echo area asking me for my email password
but was immediately covered over with:

          Reverting buffer ‘wpa_supplicant.log’.

so that I could no longer see the passwoed prompt.  I almost missed
seeing the password prompt.

I had to type a key (I typed the "?" key) and then could see the
password prompt.

Ordinarily, I never see the "Reverting buffer..." message.  In
fact, I just turned off my WiFi as an experiment and didn't see the

           Reverting buffer ‘wpa_supplicant.log’.

message in the echo area.  But when I `switch-to-buffer' to the
*Messages* buffer, I could see the "Revert buffer" message.

So it appears that this "Revert buffer..." message only appeared
for me because the echo area was engaged in prompting for a password
but, unfortunately, it was occluded by the "Revert buffer..." message.

Is there a way to prevent this?

Thanks.

>
> Best regards, Michael.

bug#23338: 25.0.92; auto-revert-buffers errors

[Michael Albinus]

Version: 25.1

Live System User <nyc4bos@aol.com> writes:

> Hi,

Hi,

>>>> Error running timer ‘auto-revert-buffers’: (wrong-type-argument
>>>> number-or-marker-p nil) [108 times]
>>>
>>> First, pls upgrade Emacs 25.0.92. There have been changes in
>>> autorevert.el recently, which might be related.
>>
>> Ping.
>
> I recently upgraded to GNU Emacs 25.0.93.1 and have not seen this bug.

Thanks. So I regard this bug as solved, closing it.

> However, when trying to send this message using Gnus, the prompt
> briefly showed in the echo area asking me for my email password
> but was immediately covered over with:
>
>           Reverting buffer ‘wpa_supplicant.log’.
>
> so that I could no longer see the passwoed prompt.  I almost missed
> seeing the password prompt.

Well, this is Emacs behaviour. New messages could hide minibuffer prompts.
It isn't specific to auto-revert-mode.

> I had to type a key (I typed the "?" key) and then could see the
> password prompt.

You could use any key, even a key which is not consumed as input. I take
the <left> or <right> key in such cases.

> Ordinarily, I never see the "Reverting buffer..." message.  In
> fact, I just turned off my WiFi as an experiment and didn't see the
>
>            Reverting buffer ‘wpa_supplicant.log’.
>
> message in the echo area.

It depends on your activities. As soon as you type any key, the message
disappears.

> But when I `switch-to-buffer' to the *Messages* buffer, I could see
> the "Revert buffer" message.
>
> So it appears that this "Revert buffer..." message only appeared
> for me because the echo area was engaged in prompting for a password
> but, unfortunately, it was occluded by the "Revert buffer..." message.
>
> Is there a way to prevent this?

There is auto-revert-verbose. Set it to nil, and the message does not
appears, neither in the echo area, nor in the *Messages* buffer.

> Thanks.

Best regards, Michael.