GNU bug report logs - #23669
25.0.94; make-network-process crash

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Live System User <nyc4bos <at> aol.com>
Subject: bug#23669: closed (Re: 25.0.94; make-network-process crash)
Date: Thu, 02 Jun 2016 15:00:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#23669: 25.0.94; make-network-process crash

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 23669 <at> debbugs.gnu.org.

-- 
23669: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=23669
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Live System User <nyc4bos <at> aol.com>
Cc: 23669-done <at> debbugs.gnu.org
Subject: Re: 25.0.94; make-network-process crash
Date: Thu, 2 Jun 2016 07:58:59 -0700

Thanks for the bug report. I reproduced it on emacs-25. Also on Emacs 
24.5, so it is not a regression. The bug appears to be fixed already in 
the Emacs master branch, though, so I will (perhaps boldly) close the 
report as already fixed.

[Message part 3 (message/rfc822, inline)]

From: Live System User <nyc4bos <at> aol.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.0.94; make-network-process crash
Date: Wed, 01 Jun 2016 07:12:42 -0400

[Message part 4 (text/plain, inline)]

Hi,

        While testing `make-network-process' from the example
        given in bug#23658, Emacs crashed.

0. emacs -Q

1. Evaluate the following elisp:

   (progn
     (defun my-sentinel (proc event)
       (with-current-buffer "*scratch*"
         (save-excursion
           (goto-char (point-max))
           (insert (format "\n>> proc = '%s', status = '%s', event = '%s'"
                           proc (process-status proc) event)))))

     (defun my-filter (proc str)
       (with-current-buffer "*scratch*"
         (save-excursion
           (goto-char (point-max))
           (insert (format "\n>> proc = '%s', status = '%s', str = '%s'"
                           proc (process-status proc) str)))))

     ;; These IP addresses are both for host rajaniemi.freenode.net.
     (let* ((ipv6-host "2001:708:40:2001:a822:baff:fec4:2428")
            (ipv4-host "195.148.124.79")
            (process (make-network-process :name "zzz"
                                           :buffer nil
                                           :host ipv6-host
                                           ;; :host ipv4-host
                                           :service 6667
                                           :nowait t)))
       (set-process-sentinel process 'my-sentinel)
       (set-process-filter process 'my-filter)))


You should get the error:

Wrong type argument: processp, nil

      However, in my Emacs session I had:

2. (setq debug-on-error t)

   which made the Emacs session crash.

   The crash doesn't happen with an IPV4 addresses, just IPV6 addresses.

Thanks.

[emacs-net-crash.txt (text/plain, inline)]

Backtrace:
emacs[0x50b18c]
emacs[0x4f185c]
emacs[0x509e4e]
emacs[0x50a075]
emacs[0x50a0df]
/lib64/libpthread.so.0(+0x109f0)[0x7f9b2e2679f0]
emacs[0x58160b]
emacs[0x582fba]
emacs[0x56446b]
emacs[0x5666f6]
emacs[0x59bd83]
emacs[0x5664eb]
emacs[0x59bd83]
emacs[0x5664eb]
emacs[0x567900]
emacs[0x567b3c]
emacs[0x567cdc]
emacs[0x566cbb]
emacs[0x566df9]
emacs[0x56734a]
emacs[0x550764]
emacs[0x59ff0d]
emacs[0x565b68]
emacs[0x56890d]
emacs[0x565ac1]
emacs[0x586b70]
emacs[0x589f0f]
emacs[0x58ae51]
emacs[0x5666aa]
emacs[0x56215a]
emacs[0x5665f7]
emacs[0x562b7f]
emacs[0x5666d4]
emacs[0x59bd83]
emacs[0x5664eb]
emacs[0x59bd83]
emacs[0x5664eb]
emacs[0x56215a]
emacs[0x5665f7]
emacs[0x567900]
emacs[0x5624e5]
...

[crash-info.txt (text/plain, attachment)]

[Message part 7 (text/plain, inline)]

In GNU Emacs 25.0.94.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.18.9)
 of 2016-05-18 built on copr-builder-587584625.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 --with-xwidgets 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 XWIDGETS

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

Major mode: Lisp Interaction

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
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
Auto-saving...done
Are you sure you want to quit reading news? (y or n) y
Saving /home/liveuser/.newsrc...
Saving file /home/liveuser/.newsrc...
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

Load-path shadows:
None found.

Features:
(shadow emacsbug pp mailalias smtpmail sendmail thingatpt eieio-opt
speedbar sb-image ezimage dframe find-func shr-color color gnus-dup sort
gnus-cite smiley ansi-color shr dom subr-x browse-url mail-extr
gnus-async gnus-bcklg qp gnus-ml disp-table cursor-sensor nndraft nnmh
nndoc mm-archive timezone url-http url-gw url-cache url-auth
url-handlers utf-7 rfc2104 nnfolder network-stream nsm starttls
gnus-agent gnus-srvr gnus-score score-mode nnvirtual gnus-msg nntp
gnus-cache epa-file epa derived nnreddit mm-url url url-proxy
url-privacy url-expand url-methods url-history url-cookie url-domsuf
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json map seq byte-opt bytecomp byte-compile cl-extra cconv gnus-art
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hashtable-print-readable backquote dbusbind inotify dynamic-setting
system-font-setting font-render-setting xwidget-internal move-toolbar
gtk x-toolkit x multi-tty make-network-process emacs)

Memory information:
((conses 16 202285 38513)
 (symbols 48 32038 165)
 (miscs 40 91 380)
 (strings 32 50826 16196)
 (string-bytes 1 1642834)
 (vectors 16 25909)
 (vector-slots 8 615567 17970)
 (floats 8 574 1017)
 (intervals 56 459 29)
 (buffers 976 35)
 (heap 1024 46281 32480))

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