bug#17170: 24.3.50; debug: Terminal 3 is locked, cannot read from it

[Nicolas Richard]

I got the following error message
debug: Terminal 3 is locked, cannot read from it

It has already happened to me but I cannot reproduce. This however only
happeend to me in a situation where emacs is run (with -nw option) from
gdb which is run from tmux and I connect to that through ssh and
emacsclient.

In this specific occurrence of the problem, that initial frame was
active (on the host computer) but I was connecting to the emacs session
from ssh via emacsclient. There was a third frame also, a graphical one,
on the host computer.

If I hit ESC ESC ESC, I get the error message again and enter a new
level of recursive edit (i.e. another layer of brackets in the
modeline). I can't escape those : C-] just makes also the error again +
another level of recursive edit.

Any idea on how to debug this further ?

Thanks.

In GNU Emacs 24.3.50.7 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2014-03-27 on geodiff-mac3
Windowing system distributor `The X.Org Foundation', version 11.0.11304000
System Description:     Gentoo Base System release 2.2

Configured using:
 `configure --with-x-toolkit=lucid 'CFLAGS= -O0 -g3''

Important settings:
  value of $LANG: fr_FR.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Edit Macro

Minor modes in effect:
  TeX-PDF-mode: t
  rcirc-track-minor-mode: t
  global-semanticdb-minor-mode: t
  global-semantic-idle-scheduler-mode: t
  semantic-mode: t
  yas/global-mode: t
  projectile-global-mode: t
  projectile-mode: t
  dynamic-completion-mode: t
  shell-dirtrack-mode: t
  diff-auto-refine-mode: t
  server-mode: t
  minibuffer-depth-indicate-mode: t
  show-paren-mode: t
  recentf-mode: t
  winner-mode: t
  global-discover-mode: t
  discover-mode: t
  display-time-mode: t
  override-global-mode: t
  tooltip-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<down> <down> C-x C-s c M-x g n u s <return> C-x b 
<return> <C-home> C-x C-s C-c C-c y g <up> <down> q 
y C-c C-SPC C-z C-x b B B <return> C-x b b <backspace> 
B B Q C-g ESC [ > 1 ; 3 4 0 6 ; 0 c C-c C-c C-@ C-c 
C-@ C-u C-c C-@ ESC x C-g ESC x r c i r c RET ESC x 
g n u s RET C-n C-p RET RET , , C-p RET C-c C-@ C-c 
C-@ C-c C-@ C-c C-@ C-c C-@ C-c C-s C-x 1 C-l C-l ESC 
x g n u s RET RET q RET RET k q RET q C-n q y ESC < 
ESC > C-x b # e m RET ESC < ESC > C-c C-@ C-c C-@ C-c 
C-@ ESC < C-x K C-c C-@ ESC > C-x K ESC x ESC l o c 
a t e RET d e n i s RET C-s p d f C-n C-n C-n ESC x 
ESC O A RET d b o n h e RET C-x 1 C-n C-n C-n C-n C-n 
C-n C-n C-n C-n C-n C-n C-n C-n C-p C-p C-p C-p C-p 
C-x K C-x C-c C-g C-x C-c C-g C-x ESC O C C-p C-p C-p 
C-p C-n C-n C-p C-o C-n C-c C-e d o c u TAB RET RET 
C-h l C-x C-k e C-h l ESC > C-@ C-p C-p C-p C-p C-p 
C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p 
C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p 
C-p C-g ESC x r e p o r t SPC e m TAB SPC b u DEL DEL 
DEL TAB RET

Recent messages:
Mark set [6 times]
Mark saved where search started
Quit [2 times]
Beginning of buffer [3 times]
Sorting environment...
Removing duplicates... done
Entering debugger...
debug: Terminal 3 is locked, cannot read from it
Type C-x 1 to delete the help window.
Formatting keyboard macro...done

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Features:
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ob-shell shell magit-key-mode magit view help-mode grep compile
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gnus-ems nnheader mail-utils xterm hideshow org-caldav icalendar
diary-lib diary-loaddefs org-id latexenc ox-latex ox-icalendar ox-html
ox-ascii ox-publish ox org-element avl-tree url-dav url-http url-auth
mail-parse rfc2231 rfc2047 rfc2045 ietf-drums url-gw url-handlers etable
etable-selection-model etable-cell-renderer etable-table-column-model
etable-table-column etable-table-model eieio-base interval-list dash
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mb-depth icomplete autoinsert hippie-exp warnings ert ewoc debug
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calendar cal-loaddefs package use-package bytecomp byte-compile cconv
bind-key easy-mmode tooltip electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt
fringe tabulated-list newcomment lisp-mode prog-mode register page
menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock
syntax facemenu font-core frame cham georgian utf-8-lang misc-lang
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romanian slovak czech european ethiopic indian cyrillic chinese
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loaddefs button faces cus-face macroexp files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process dbusbind
gfilenotify dynamic-setting system-font-setting font-render-setting
x-toolkit x multi-tty emacs)

Memory information:
((conses 8 656834 83083)
 (symbols 24 62271 512)
 (miscs 20 1962 2817)
 (strings 16 152979 30540)
 (string-bytes 1 4975562)
 (vectors 8 55728)
 (vector-slots 4 979444 32758)
 (floats 8 895 956)
 (intervals 28 12031 1103)
 (buffers 512 136)
 (heap 1024 26255 7094))

-- 
Nico.