bug#15950: 24.3; emacs aborted when open a remote image file in dired.

bug#15950: 24.3; emacs aborted when open a remote image file in dired.

[Jingtao Xu]

This bug report will be sent to the Bug-GNU-Emacs mailing list
and the GNU bug tracker at debbugs.gnu.org.  Please check that
the From: line contains a valid email address.  After a delay of up
to one day, you should receive an acknowledgment at that address.

Please write in English if possible, as the Emacs maintainers
usually do not have translators for other languages.

Please describe exactly what actions triggered the bug, and
the precise symptoms of the bug.  If you can, give a recipe
starting from `emacs -Q':

I have an image file(jpg format) in a remote machine,I go to the remote directory using tramp url
"/scpc:user@hostname:/path/",then dired opened to display the files in this directory,
then I click entor on this image to open it in emacs,then emacs aborted.
I tried to use "gdb emacs" to start emacs and get following backtrace:

Program received signal SIGABRT, Aborted.
0x00007ffff2968a9b in raise () from /lib64/libpthread.so.0
(gdb) backtrace
#0  0x00007ffff2968a9b in raise () from /lib64/libpthread.so.0
#1  0x00000000004dfa85 in terminate_due_to_signal ()
#2  0x00000000004fa593 in emacs_abort ()
#3  0x0000000000498832 in multibyte_chars_in_text ()
#4  0x000000000053a3c8 in make_specified_string ()
#5  0x00000000005111b8 in Fdirectory_file_name ()
#6  0x00000000005542f7 in Ffuncall ()
#7  0x00000000005552ff in Fapply ()
#8  0x000000000055435f in Ffuncall ()
#9  0x0000000000589813 in exec_byte_code ()
#10 0x0000000000553ddf in funcall_lambda ()
#11 0x000000000055412d in Ffuncall ()
#12 0x0000000000589813 in exec_byte_code ()
#13 0x0000000000553ddf in funcall_lambda ()
#14 0x000000000055412d in Ffuncall ()
#15 0x0000000000589813 in exec_byte_code ()
#16 0x0000000000553ddf in funcall_lambda ()
#17 0x000000000055412d in Ffuncall ()
#18 0x00000000005552ff in Fapply ()
#19 0x000000000055435f in Ffuncall ()
#20 0x0000000000589813 in exec_byte_code ()

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
For information about debugging Emacs, please read the file
/usr/share/emacs/24.3/etc/DEBUG.


In GNU Emacs 24.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.6.3)
 of 2013-09-26 on mini.funtoo
Windowing system distributor `The X.Org Foundation', version 11.0.11304000
Configured using:
 `configure '--prefix=/usr' '--build=x86_64-pc-linux-gnu' '--host=x86_64-pc-linux-gnu'
 '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--datadir=/usr/share'
 '--sysconfdir=/etc' '--localstatedir=/var/lib' '--libdir=/usr/lib64'
 '--disable-dependency-tracking' '--program-suffix=-emacs-24'
 '--infodir=/usr/share/info/emacs-24'
 '--enable-locallisppath=/etc/emacs:/usr/share/emacs/site-lisp'
 '--with-crt-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.4/../../../../lib64'
 '--with-gameuser=games' '--without-compress-info' '--with-hesiod' '--with-kerberos'
 '--with-kerberos5' '--without-gpm' '--with-dbus' '--with-gnutls' '--with-xml2'
 '--without-selinux' '--with-wide-int' '--with-sound' '--with-x' '--without-ns'
 '--with-gconf' '--with-gsettings' '--with-toolkit-scroll-bars' '--with-gif' '--with-jpeg'
 '--with-png' '--with-rsvg' '--with-tiff' '--with-xpm' '--without-imagemagick'
 '--with-xft' '--with-libotf' '--with-m17n-flt' '--with-x-toolkit=gtk3'
 'GENTOO_PACKAGE=app-editors/emacs-24.3-r2' 'build_alias=x86_64-pc-linux-gnu'
 'host_alias=x86_64-pc-linux-gnu' 'CFLAGS=-O2 -pipe -march=native' 'LDFLAGS=-Wl,-O1
 -Wl,--sort-common -Wl,--as-needed' 'CPPFLAGS=''

Important settings:
  value of $LC_COLLATE: POSIX
  value of $LC_CTYPE: zh_CN.UTF-8
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=fcitx
  locale-coding-system: utf-8
  default enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  savehist-mode: t
  recentf-mode: t
  ido-everywhere: t
  tabbar-mode: t
  global-auto-revert-mode: t
  Info-breadcrumbs-in-mode-line-mode: t
  global-auto-complete-mode: t
  yas/global-mode: t
  anything-dired-mode: Enable anything completion in Dired functions.
Bindings affected are C, R, S, H.
This is deprecated for Emacs24+ users, use `ac-mode' instead.
  auto-image-file-mode: t
  winner-mode: t
  display-time-mode: t
  show-paren-mode: t
  shell-dirtrack-mode: t
  which-function-mode: t
  tooltip-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  abbrev-mode: t

Recent input:
<f9> y n y <down-mouse-1> <mouse-1> s J C-g M-< S C-h 
C-a j l l l l l l l l l l l l l l l l l l h j k M-x 
r e <backspace> <backspace> r e p o r t - b u <backspace> 
<backspace> e m a c <return>

Recent messages:
I got it all together but I forgot where i put it.

Simple,clear purpose and principles give rise to complex and intelligent behavior.
Complex rules and regulations give rise to simple and stupid behavior. --Dee Hock

Don’t aim for success if you want it; just do what you love and believe in, and it will come naturally.

Those who make the worst use of their time are the first to complain of its shortness. --Jean de La Bruysre

No event to add

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Features:
(shadow emacsbug elmo-maildir modb-legacy modb-standard wl-mime mime-edit pgg-parse pccl
pccl-20 signature ppm-gen eieio-comp eieio-base wl-demo wl-news wl-thread wl-action
wl-folder wl wl-e21 offlineimap todochiku growl eldoc eim eim-extra tramp-cache tramp-sh
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mml-sec mm-decode mm-bodies mm-encode gmm-utils mailheader gnus-win bbdb-snarf mail-extr
rfc822 gnus gnus-ems nnheader mail-parse rfc2231 bbdb-com mailabbrev wl-address wl-draft
eword-encode wl-template sendmail rfc2047 rfc2045 ietf-drums mail-utils elmo-net
elmo-cache elmo-map elmo-dop wl-summary ps-print ps-def lpr wl-refile wl-util elmo-flag
elmo-localdir wl-message elmo-mime mmelmo-buffer mmelmo-imap mime-pgp pgg-def mime-play
filename mime-image mime-view mime-conf calist mmimap mmbuffer mmgeneric wl-highlight
wl-vars wl-version elmo-multi elmo elmo-signal elmo-msgdb modb modb-generic modb-entity
elmo-util emu invisible inv-23 poem poem-e20 poem-e20_3 utf7 elmo-date elmo-vars
elmo-version mime-setup mail-mime-setup semi-setup semi-def mime-w3m mime eword-decode mel
path-util mime-parse std11 luna mime-def alist mcharset mcs-20 mcs-e20 pces pces-e20
pces-20 broken pcustom poe pym static apel-ver product my-wl virsh anaphora
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slime-repl slime-fuzzy slime-c-p-c slime-autodoc slime-editing-commands slime-parse
anything-complete anything-obsolete anything-match-plugin anything warnings advice
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quack-autoloads simple-httpd-autoloads web-autoloads package which-func imenu server
my-autoload help-fns easy-mmode parse-time cl-macs gv cl cl-lib my-utils my-main my-env
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bug#15950: 24.3; emacs aborted when open a remote image file in dired.

[Michael Albinus]

Jingtao Xu <jingtaozf@gmail.com> writes:

Hi,

> I have an image file(jpg format) in a remote machine,I go to the remote directory using tramp url
> "/scpc:user@hostname:/path/",then dired opened to display the files in this directory,
> then I click entor on this image to open it in emacs,then emacs aborted.

I cannot reproduce this with a recent Emacs 24.3.50.

> I tried to use "gdb emacs" to start emacs and get following backtrace:
>
> Program received signal SIGABRT, Aborted.
> 0x00007ffff2968a9b in raise () from /lib64/libpthread.so.0
> (gdb) backtrace
> #0  0x00007ffff2968a9b in raise () from /lib64/libpthread.so.0
> #1  0x00000000004dfa85 in terminate_due_to_signal ()
> #2  0x00000000004fa593 in emacs_abort ()
> #3  0x0000000000498832 in multibyte_chars_in_text ()
> #4  0x000000000053a3c8 in make_specified_string ()
> #5  0x00000000005111b8 in Fdirectory_file_name ()

This looks suspicious. What is the name of the file in question? What is
the whole path to that file? Are there any non-ASCII characters?

> Important settings:
>   value of $LC_COLLATE: POSIX
>   value of $LC_CTYPE: zh_CN.UTF-8
>   value of $LANG: en_US.UTF-8
>   value of $XMODIFIERS: @im=fcitx
>   locale-coding-system: utf-8
>   default enable-multibyte-characters: t

There have been some recent changes in Tramp, which allow better support
of utf8. Maybe that fixes this already.

However, first I would like to reproduce the problem with Emacs 24.3.

Best regards, Michael.

bug#15950: 24.3; emacs aborted when open a remote image file in dired.

[Michael Albinus]

Version: 24.4

Jingtao Xu <jingtaozf@gmail.com> writes:

> Hi,

Hi,

> I have tested this problem in latest emacs(24.3.50.1),and G2 don't abort now.

Thanks for confirmation. I'm closing the bug.

> Thanks for your investigation.
>
> With Best Regards,
> jingtao.

Best regards, Michael.