bug#25649: 26.0.50; Decryption of mail fails silently if tmp directory is full

[Marco Wahl <marcowahlsoft@gmail.com>]

Precondition:

- Have temp directory 100% full.

- Have an encrypted (for you) email.

Action:

- Trigger the decrypt of that email in gnus.

Effect:

- The mailtext is omitted.  It looks like the email has no content.

Wish:

- Error indication.




In GNU Emacs 26.0.50.2 (x86_64-unknown-linux-gnu, GTK+ Version 3.22.7)
 of 2017-02-01 built on tm6592
Repository revision: 12da2a5beafc4595fe4dd922431ba9f013b84830
Windowing system distributor 'The X.Org Foundation', version 11.0.11901000
System Description:	Arch Linux

Recent messages:
Directory has changed on disk; type g to update Dired
Copy proceeding asynchronously...
error in process sentinel: async-handle-result: Write error: No space left on device, /tmp/dired-async.log
error in process sentinel: Write error: No space left on device, /tmp/dired-async.log
nil [2 times]
History item: 128
Decrypt (PGP) part? (y or n) y
56 entries in the kill ring.    Type M-x browse-kill-ring-quit to quit.  h for help.
Mark set
Auto-saving...done

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

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

Major mode: Lisp Interaction

Minor modes in effect:
  checkdoc-minor-mode: t
  moz-controller-global-mode: t
  moz-controller-mode: t
  zen-reward-mode: t
  nyan-mode: t
  lispy-mode: t
  global-company-mode: t
  company-mode: t
  diff-auto-refine-mode: t
  magit-auto-revert-mode: t
  global-git-commit-mode: t
  async-bytecomp-package-mode: t
  global-lentic-mode: t
  lentic-mode: t
  ido-hacks-mode: t
  ido-everywhere: t
  on-screen-global-mode: t
  wrap-region-global-mode: t
  wrap-region-mode: t
  keyfreq-autosave-mode: t
  keyfreq-mode: t
  dired-async-mode: t
  dired-async--modeline-mode: t
  override-global-mode: t
  shell-dirtrack-mode: t
  timeclock-mode-line-display: t
  show-paren-mode: t
  erc-list-mode: t
  erc-menu-mode: t
  erc-autojoin-mode: t
  erc-ring-mode: t
  erc-networks-mode: t
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-track-minor-mode: t
  erc-match-mode: t
  erc-button-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-netsplit-mode: t
  erc-irccontrols-mode: t
  erc-noncommands-mode: t
  erc-move-to-prompt-mode: t
  erc-readonly-mode: t
  display-time-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  prettify-symbols-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
  line-number-mode: t
  transient-mark-mode: t
  abbrev-mode: t

Load-path shadows:
Error during checking
Features:
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ietf-drums mail-utils mm-util mail-prsvr url-queue url url-proxy
url-privacy url-expand url-methods url-history url-cookie url-domsuf
url-util mailcap shr svg dom subr-x browse-url lentic eieio-compat f s
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er-basic-expansions expand-region-core expand-region-custom
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select scroll-bar mouse jit-lock font-lock syntax facemenu font-core
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simple abbrev obarray minibuffer cl-preloaded nadvice loaddefs button
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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 2646319 264201)
 (symbols 48 104093 95)
 (miscs 40 56475 27789)
 (strings 32 463755 52984)
 (string-bytes 1 18221117)
 (vectors 16 165726)
 (vector-slots 8 3352450 138254)
 (floats 8 4075 3754)
 (intervals 56 187294 8808)
 (buffers 976 156))

-- 
Marco Wahl -- Freelancer
https://marcowahl.github.io