bug#27731: 25.2; Emacs always crash when C-x C-s over tramp

[Yu Zhao 赵宇]

Everytime when I press C-x C-s to save-file over tramp(I am certain
about this), my Emacs crashes.

Or may be it crashes sometimes I save-file locally(not sure about this)?

I tramp to a remote centos server over ssh, it always works very well before 
that.

I tried to tramp using Emacs -Q and it works(not crash) one time.

I've just upgraded my mac to 10.12 and my Emacs to 25.2 from 25.1,
so I am not sure whether the mac version or the emacs version is the
actual cause of the crash.



In GNU Emacs 25.2.1 (x86_64-apple-darwin16.6.0, NS appkit-1504.83 Version 
10.12.5 (Build 16F73))
 of 2017-07-15 built on localhost
Windowing system distributor 'Apple', version 10.3.1504
Configured using:
 'configure --disable-dependency-tracking --disable-silent-rules
 --enable-locallisppath=/usr/local/share/emacs/site-lisp
 --infodir=/usr/local/Cellar/emacs/25.2/share/info/emacs
 --prefix=/usr/local/Cellar/emacs/25.2 --without-x --with-xml2
 --with-dbus --with-gnutls --with-imagemagick --with-modules --with-rsvg
 --without-pop --with-ns --disable-ns-self-contained'

Configured features:
JPEG RSVG IMAGEMAGICK DBUS NOTIFY ACL GNUTLS LIBXML2 ZLIB
TOOLKIT_SCROLL_BARS NS MODULES

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

Major mode: Lisp Interaction

Minor modes in effect:
  rainbow-delimiters-mode: t
  aggressive-indent-mode: t
  elisp-slime-nav-mode: t
  linum-mode: t
  hes-mode: t
  keyfreq-autosave-mode: t
  keyfreq-mode: t
  editorconfig-mode: t
  global-smartscan-mode: t
  smartscan-mode: t
  global-whitespace-cleanup-mode: t
  whitespace-cleanup-mode: t
  fic-mode: t
  eval-sexp-fu-flash-mode: t
  paredit-mode: t
  yas-global-mode: t
  yas-minor-mode: t
  helm-descbinds-mode: t
  helm-mode: t
  async-bytecomp-package-mode: t
  guide-key-mode: t
  global-subword-mode: t
  subword-mode: t
  winner-mode: t
  savehist-mode: t
  shell-dirtrack-mode: t
  recentf-mode: t
  global-auto-revert-mode: t
  save-place-mode: t
  show-paren-mode: t
  global-hl-line-mode: t
  global-undo-tree-mode: t
  undo-tree-mode: t
  encourage-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  menu-bar-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
  global-visual-line-mode: t
  visual-line-mode: t
  transient-mark-mode: t
  abbrev-mode: t

Recent messages:
Loading /Users/yuzhao/.emacs.d/.mc-lists.el (source)...done
.emacs.d/elpa/eval-sexp-fu/eval-sexp-fu.el: ‘labels’ is an obsolete macro (as 
of 24.3); use ‘cl-labels’ instead.
.emacs.d/elpa/eval-sexp-fu/eval-sexp-fu.el: ‘flet’ is an obsolete macro (as of 
24.3); use either ‘cl-flet’ or ‘cl-letf’. [2 times]
ad-handle-definition: ‘er/expand-region’ got redefined
.emacs.d/elpa/smart-forward-20140430.13/smart-forward.el: ‘flet’ is an obsolete 
macro (as of 24.3); use either ‘cl-flet’ or ‘cl-letf’. [4 times]
Loading /Users/yuzhao/.emacs.d/site-lisp/chinese-wubi-single-rules.el 
(source)...done
.emacs.d/site-lisp/reddit.el: ‘labels’ is an obsolete macro (as of 24.3); use 
‘cl-labels’ instead.
Loading font-lock...done
For information about GNU Emacs and the GNU system, type C-h C-a.
.emacs.d/elpa/helm-20160929.1313/helm-elisp.el: ‘dont-compile’ is an obsolete 
macro (as of 24.4).

Load-path shadows:
/Users/yuzhao/.emacs.d/site-lisp/el-get-install hides 
/Users/yuzhao/.emacs.d/elpa/el-get-20161022.614/el-get-install
/Users/yuzhao/.emacs.d/site-lisp/jump/inflections hides 
/Users/yuzhao/.emacs.d/elpa/inflections-20161126.1727/inflections
/Users/yuzhao/.emacs.d/site-lisp/auto-complete-config hides 
/Users/yuzhao/.emacs.d/elpa/auto-complete-20160827.649/auto-complete-config
/Users/yuzhao/.emacs.d/site-lisp/move-text hides 
/Users/yuzhao/.emacs.d/elpa/move-text-20160930.1907/move-text
/Users/yuzhao/.emacs.d/site-lisp/highlight hides 
/Users/yuzhao/.emacs.d/elpa/highlight-20160617.617/highlight
/Users/yuzhao/.emacs.d/site-lisp/popup/popup hides 
/Users/yuzhao/.emacs.d/elpa/popup-20160709.729/popup
/Users/yuzhao/.emacs.d/site-lisp/markdown-mode hides 
/Users/yuzhao/.emacs.d/elpa/markdown-mode-20160928.932/markdown-mode
/Users/yuzhao/.emacs.d/site-lisp/spinner/spinner hides 
/Users/yuzhao/.emacs.d/elpa/spinner-1.7.1/spinner
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-xact hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-xact
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-texi hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-texi
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-test hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-test
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-state hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-state
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-sort hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-sort
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-schedule hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-schedule
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-report hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-report
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-regex hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-regex
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-reconcile hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-reconcile
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-post hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-post
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-occur hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-occur
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-navigate hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-navigate
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-mode hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-mode
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-init hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-init
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-fonts hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-fonts
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-fontify hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-fontify
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-exec hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-exec
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-context hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-context
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-complete hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-complete
/Users/yuzhao/.emacs.d/elpa/ledger-mode-20160716.1259/ledger-commodities hides 
/usr/local/share/emacs/site-lisp/ledger/ledger-commodities

Features:
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mm-bodies mm-encode mailabbrev gmm-utils mailheader helm-command
helm-elisp helm-eval rainbow-delimiters aggressive-indent
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bookmark+-1 font-lock+ bookmark+-bmu bookmark+-lit reddit tree-mode
setup-keymaps move-text wolfram-mode smie swbuff-x swbuff blog-admin
blog-admin-backend-nikola blog-admin-backend-org-page
blog-admin-backend-hexo blog-admin-backend f ox-latex ox-icalendar
ox-html ox-ascii ox-publish ox org-element names edebug my-utils server
fill-column-indicator visual-regexp highlight-escape-sequences
mode-mappings rainbow-mode color setup-markdown-mode smartparens-config
smartparens-html smartparens keyfreq setup-mail midnight mailalias
sendmail mail-utils setup-magit setup-gui setup-dired setup-diminish
diminish setup-editing chinese-wubi quail editorconfig markdown-mode
smartscan whitespace-cleanup-mode whitespace fic-mode smart-forward
expand-region text-mode-expansions the-org-mode-expansions
html-mode-expansions clojure-mode-expansions er-basic-expansions
expand-region-core expand-region-custom multiple-cursors
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rectangular-region-mode mc-mark-pop mc-mark-more mc-cycle-cursors
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setup-scheme setup-cider adoc-mode tempo markup-faces cider-eval-sexp-fu
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rfc2047 rfc2045 ietf-drums url-gw lisp-mnt epl hydra lv inflections
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cider-browse-ns cider-inspector cider-mode cider-interaction etags xref
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eieio-compat helm-multi-match helm-lib dired guide-key s popwin dash
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ring format-spec recentf tree-widget wid-edit autorevert filenotify
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diff beacon cus-start cus-load encourage-mode easy-mmode eieio-core
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cl-loaddefs pcase cl-lib time-date mule-util china-util tooltip eldoc
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Memory information:
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 (symbols 48 61650 0)
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 (strings 32 163418 129873)
 (string-bytes 1 4889256)
 (vectors 16 84366)
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