GNU bug report logs - #19971
25.0.50; Emacs segfaults randomly

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: jhair.tocancipa <at> gmail.com
To: bug-gnu-emacs <at> gnu.org
Subject: 25.0.50; Emacs segfaults randomly
Date: Sat, 28 Feb 2015 17:16:28 +0100

Occasionaly C-x 5 2 or while playing chess emacs segfaults since some
weeks back. Haven't found a recipe to reproduce it. Here the gdb
backtrace:

(gdb) bt 30
#0  0x00007fe7581deb5b in raise (sig=sig <at> entry=11)
    at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37
#1  0x00000000004e8034 in terminate_due_to_signal (sig=sig <at> entry=11, 
    backtrace_limit=backtrace_limit <at> entry=40) at emacs.c:378
#2  0x00000000004ff50e in handle_fatal_signal (sig=sig <at> entry=11)
    at sysdep.c:1604
#3  0x00000000004ff733 in deliver_thread_signal (sig=sig <at> entry=11, 
    handler=0x4ff500 <handle_fatal_signal>) at sysdep.c:1578
#4  0x00000000004ff7bf in deliver_fatal_thread_signal (sig=11)
    at sysdep.c:1616
#5  handle_sigsegv (sig=11, siginfo=<optimized out>, arg=<optimized out>)
    at sysdep.c:1667
#6  <signal handler called>
#7  cache_image (f=0x4ca3830, img=0x7c47f20) at image.c:1775
#8  lookup_image (f=f <at> entry=0x4ca3830, spec=spec <at> entry=79920147)
    at image.c:1686
#9  0x00000000005c3f70 in Fimage_size (spec=79920147, pixels=0, 
    frame=<optimized out>) at image.c:864
#10 0x0000000000559037 in Ffuncall (nargs=1, args=0xb26050 <Simage_size>)
    at eval.c:2725
#11 0x000000000058d993 in exec_byte_code (bytestr=<optimized out>, 
    vector=50602357, maxdepth=<optimized out>, 
    args_template=args_template <at> entry=0, nargs=nargs <at> entry=0, 
    args=<optimized out>, args <at> entry=0x0) at bytecode.c:919
#12 0x0000000000558aa2 in funcall_lambda (fun=50602421, nargs=1, 
    arg_vector=0x7fff8254f5a8) at eval.c:2951
#13 0x0000000000558e63 in Ffuncall (nargs=1, args=0x30421b0) at eval.c:2779
#14 0x000000000058d993 in exec_byte_code (bytestr=<optimized out>, 
    vector=50602357, maxdepth=<optimized out>, 
    args_template=args_template <at> entry=0, nargs=nargs <at> entry=0, 
    args=<optimized out>, args <at> entry=0x0) at bytecode.c:919
#15 0x0000000000558aa2 in funcall_lambda (fun=fun <at> entry=50602421, 
    nargs=nargs <at> entry=1, arg_vector=arg_vector <at> entry=0x7fff8254f700)
    at eval.c:2951
#16 0x0000000000558028 in apply_lambda (fun=50602421, args=<optimized out>, 
    count=24) at eval.c:2826
#17 0x0000000000558386 in eval_sub (form=form <at> entry=49986723) at eval.c:2256
#18 0x0000000000557ff2 in apply_lambda (fun=50782925, args=<optimized out>, 
    count=23) at eval.c:2818
#19 0x0000000000558386 in eval_sub (form=<optimized out>) at eval.c:2256
#20 0x00000000005586d4 in eval_sub (form=<optimized out>) at eval.c:2147
#21 0x00000000005588bd in Fprogn (body=49986435) at eval.c:445
#22 0x000000000055b271 in FletX (args=49987155) at eval.c:896
#23 0x0000000000558533 in eval_sub (form=form <at> entry=50238211) at eval.c:2131
#24 0x000000000055ba21 in Feval (form=50238211, lexical=<optimized out>)
    at eval.c:1996
#25 0x0000000000559047 in Ffuncall (nargs=1, nargs <at> entry=2, 
    args=0xb21448 <Seval>) at eval.c:2721
#26 0x0000000000557a81 in internal_condition_case_n (
    bfun=0x558c60 <Ffuncall>, nargs=nargs <at> entry=2, 
    args=args <at> entry=0x7fff8254fcd0, handlers=handlers <at> entry=45264, 
    hfun=hfun <at> entry=0x4386e0 <safe_eval_handler>) at eval.c:1430
#27 0x0000000000429d96 in safe__call (inhibit_quit=<optimized out>, 
    nargs=nargs <at> entry=2, func=<optimized out>, ap=ap <at> entry=0x7fff8254fd50)
    at xdisp.c:2494
#28 0x0000000000429ee0 in safe__call1 (inhibit_quit=<optimized out>, 
    fn=<optimized out>) at xdisp.c:2531
#29 0x0000000000441c8b in safe__eval (sexpr=<optimized out>, 
    inhibit_quit=<optimized out>) at xdisp.c:2545
(More stack frames follow...)







In GNU Emacs 25.0.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.12.2)
 of 2015-02-28 on DE1-JTOCANCIPA-Ubuntu
Repository revision: 0537943561a37b54467bec19d1b8afbeba8e1e58
Windowing system distributor `The X.Org Foundation', version 11.0.11600000
System Description:	Ubuntu 14.10

Configured features:
XPM JPEG TIFF GIF PNG SOUND DBUS GSETTINGS NOTIFY LIBXML2 FREETYPE XFT
ZLIB

Important settings:
  value of $LC_MONETARY: de_DE.UTF-8
  value of $LC_NUMERIC: de_DE.UTF-8
  value of $LC_TIME: de_DE.UTF-8
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=none
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  show-paren-mode: t
  global-anzu-mode: t
  anzu-mode: t
  display-time-mode: t
  desktop-save-mode: t
  tooltip-mode: t
  global-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
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent messages:
.newsrc-dribble has auto save data; consider M-x recover-this-file
Wrote /home/jtocancipa/.emacs.desktop.lock
Desktop: 2 frames, 2 buffers restored.
For information about GNU Emacs and the GNU system, type C-h C-a.
Error during redisplay: (eval (let* ((active (powerline-selected-window-active)) (mode-line (if active (quote mode-line) (quote mode-line-inactive))) (face1 (if active (quote powerline-active1) (quote powerline-inactive1))) (face2 (if active (quote powerline-active2) (quote powerline-inactive2))) (separator-left (intern (format "powerline-%s-%s" powerline-default-separator (car powerline-default-separator-dir)))) (separator-right (intern (format "powerline-%s-%s" powerline-default-separator (cdr powerline-default-separator-dir)))) (lhs (list (powerline-raw "%*" nil (quote l)) (powerline-buffer-size nil (quote l)) (powerline-raw mode-line-mule-info nil (quote l)) (powerline-buffer-id nil (quote l)) (when (and (boundp (quote which-func-mode)) which-func-mode) (powerline-raw which-func-format nil (quote l))) (powerline-raw " ") (funcall separator-left mode-line face1) (when (boundp (quote erc-modified-channels-object)) (powerline-raw erc-modified-channels-object face1 (quote l))) (powerline-major-mode face1 (quote l)) (powerline-process face1) (powerline-minor-modes face1 (quote l)) (powerline-narrow face1 (quote l)) (powerline-raw " " face1) (funcall separator-left face1 face2) (powerline-vc face2 (quote r)))) (rhs (list (powerline-raw global-mode-string face2 (quote r)) (funcall separator-right face2 face1) (powerline-raw "%4l" face1 (quote l)) (powerline-raw ":" face1 (quote l)) (powerline-raw "%3c" face1 (quote r)) (funcall separator-right face1 mode-line) (powerline-raw " ") (powerline-raw "%6p" nil (quote r)) (powerline-hud face2 face1)))) (concat (powerline-render lhs) (powerline-fill face2 (powerline-width rhs)) (powerline-render rhs)))) signaled (wrong-type-argument hash-table-p "Unprintable entity") [4 times]
ESC <mouse-1> is undefined
Error during redisplay: (eval (let* ((active (powerline-selected-window-active)) (mode-line (if active (quote mode-line) (quote mode-line-inactive))) (face1 (if active (quote powerline-active1) (quote powerline-inactive1))) (face2 (if active (quote powerline-active2) (quote powerline-inactive2))) (separator-left (intern (format "powerline-%s-%s" powerline-default-separator (car powerline-default-separator-dir)))) (separator-right (intern (format "powerline-%s-%s" powerline-default-separator (cdr powerline-default-separator-dir)))) (lhs (list (powerline-raw "%*" nil (quote l)) (powerline-buffer-size nil (quote l)) (powerline-raw mode-line-mule-info nil (quote l)) (powerline-buffer-id nil (quote l)) (when (and (boundp (quote which-func-mode)) which-func-mode) (powerline-raw which-func-format nil (quote l))) (powerline-raw " ") (funcall separator-left mode-line face1) (when (boundp (quote erc-modified-channels-object)) (powerline-raw erc-modified-channels-object face1 (quote l))) (powerline-major-mode face1 (quote l)) (powerline-process face1) (powerline-minor-modes face1 (quote l)) (powerline-narrow face1 (quote l)) (powerline-raw " " face1) (funcall separator-left face1 face2) (powerline-vc face2 (quote r)))) (rhs (list (powerline-raw global-mode-string face2 (quote r)) (funcall separator-right face2 face1) (powerline-raw "%4l" face1 (quote l)) (powerline-raw ":" face1 (quote l)) (powerline-raw "%3c" face1 (quote r)) (funcall separator-right face1 mode-line) (powerline-raw " ") (powerline-raw "%6p" nil (quote r)) (powerline-hud face2 face1)))) (concat (powerline-render lhs) (powerline-fill face2 (powerline-width rhs)) (powerline-render rhs)))) signaled (wrong-type-argument hash-table-p "Unprintable entity") [11 times]
delete-backward-char: Text is read-only [2 times]
Making completion list...
delete-backward-char: Text is read-only

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils cl-extra seq paren avoid anzu mule-util thingatpt
time desktop frameset cus-start cus-load moe-theme powerline advice
help-fns powerline-separators color powerline-themes flymake pylookup
cl-macs ido cl gv browse-url python-pep8 derived compile comint
ansi-color ring dired-x dired edmacro kmacro dpaste server tex-site info
easymenu malabar-mode-autoloads eieio-core cl-generic pcase cl-loaddefs
cl-lib package epg-config time-date tooltip eldoc 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 elisp-mode
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 vietnamese tibetan thai tai-viet lao
korean japanese hebrew greek romanian slovak czech european ethiopic
indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple
abbrev minibuffer cl-preloaded nadvice 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 move-toolbar gtk x-toolkit x
multi-tty emacs)

Memory information:
((conses 16 163926 5386)
 (symbols 48 25976 0)
 (miscs 40 79 140)
 (strings 32 39138 8106)
 (string-bytes 1 1077845)
 (vectors 16 17662)
 (vector-slots 8 489297 2685)
 (floats 8 275 372)
 (intervals 56 250 57)
 (buffers 976 14)
 (heap 1024 46205 3704))

Message #8 received at 19971 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: jhair.tocancipa <at> gmail.com
Cc: 19971 <at> debbugs.gnu.org
Subject: Re: bug#19971: 25.0.50; Emacs segfaults randomly
Date: Sat, 28 Feb 2015 22:04:48 +0200

> From: jhair.tocancipa <at> gmail.com
> Date: Sat, 28 Feb 2015 17:16:28 +0100
> 
> 
> Occasionaly C-x 5 2 or while playing chess emacs segfaults since some
> weeks back. Haven't found a recipe to reproduce it. Here the gdb
> backtrace:
> 
> (gdb) bt 30
> #0  0x00007fe7581deb5b in raise (sig=sig <at> entry=11)
>     at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37
> #1  0x00000000004e8034 in terminate_due_to_signal (sig=sig <at> entry=11, 
>     backtrace_limit=backtrace_limit <at> entry=40) at emacs.c:378
> #2  0x00000000004ff50e in handle_fatal_signal (sig=sig <at> entry=11)
>     at sysdep.c:1604
> #3  0x00000000004ff733 in deliver_thread_signal (sig=sig <at> entry=11, 
>     handler=0x4ff500 <handle_fatal_signal>) at sysdep.c:1578
> #4  0x00000000004ff7bf in deliver_fatal_thread_signal (sig=11)
>     at sysdep.c:1616
> #5  handle_sigsegv (sig=11, siginfo=<optimized out>, arg=<optimized out>)
>     at sysdep.c:1667
> #6  <signal handler called>
> #7  cache_image (f=0x4ca3830, img=0x7c47f20) at image.c:1775

When this happens, what is the value of FRAME_IMAGE_CACHE(f) in stack
frame #7, i.e. on line 1775 of image.c?

Message #11 received at 19971 <at> debbugs.gnu.org (full text, mbox):

From: Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 19971 <at> debbugs.gnu.org, jhair.tocancipa <at> gmail.com
Subject: Re: bug#19971: 25.0.50; Emacs segfaults randomly
Date: Sat, 28 Feb 2015 22:10:21 +0100

I had the core file around and it says the following:

(gdb) f 7
#7  cache_image (f=0x28964a0, img=0x1fa8800) at image.c:1775
1775	  for (i = 0; i < c->used; ++i)
(gdb) print f->terminal->image_cache
$6 = (struct image_cache *) 0x0
(gdb) print *f
$7 = {header = {size = 4611686018477887507}, name = 82145892, icon_name = 0, 
  title = 0, focus_frame = 0, root_window = 41361077, 
  selected_window = 13378549, minibuffer_window = 37739669, 
  param_alist = 52487027, scroll_bars = 0, condemned_scroll_bars = 68854637, 
  menu_bar_items = 59926877, face_alist = 86485315, 
  menu_bar_vector = 45213117, buffer_predicate = 0, buffer_list = 88838691, 
  buried_buffer_list = 76296099, tool_bar_items = 0, 
  tool_bar_position = 46560, font_data = 44590787, face_cache = 0x2203470, 
  menu_bar_items_used = 0, current_pool = 0x0, desired_pool = 0x0, 
  desired_matrix = 0x0, current_matrix = 0x0, glyphs_initialized_p = true, 
  resized_p = false, default_face_done_p = true, already_hscrolled_p = false, 
  updated_p = false, external_tool_bar = false, fonts_changed = false, 
  cursor_type_changed = false, redisplay = true, external_menu_bar = true, 
  visible = 1, iconified = false, garbaged = false, wants_modeline = true, 
  auto_raise = false, auto_lower = false, no_split = false, 
  explicit_name = false, window_sizes_changed = false, mouse_moved = true, 
  pointer_invisible = false, frozen_window_starts = true, 
  output_method = output_x_window, want_fullscreen = FULLSCREEN_NONE, 
  vertical_scroll_bar_type = vertical_scroll_bar_right, 
  horizontal_scroll_bars = false, new_pixelwise = false, 
  can_x_set_window_size = true, after_make_frame = true, 
  tool_bar_redisplayed_once = false, tool_bar_lines = 0, tool_bar_height = 0, 
  n_tool_bar_rows = 0, n_tool_bar_items = 0, 
  decode_mode_spec_buffer = 0x289f200 "85%", insert_line_cost = 0x0, 
  delete_line_cost = 0x0, insert_n_lines_cost = 0x0, 
  delete_n_lines_cost = 0x0, text_cols = 80, text_lines = 35, total_cols = 83, 
  total_lines = 35, text_width = 560, text_height = 560, new_width = 0, 
  new_height = 0, left_pos = 309, top_pos = 334, pixel_width = 576, 
  pixel_height = 560, win_gravity = 1, size_hint_flags = 0, border_width = 0, 
  internal_border_width = 0, right_divider_width = 0, 
  bottom_divider_width = 0, left_fringe_width = 0, right_fringe_width = 0, 
  fringe_cols = 0, menu_bar_lines = 0, menu_bar_height = 0, column_width = 7, 
  line_height = 16, terminal = 0x10812e8, output_data = {tty = 0x271c600, 
    x = 0x271c600, w32 = 0x271c600, ns = 0x271c600, nothing = 41010688}, 
  font_driver_list = 0x2aa8f50, wait_event_type = 0, 
  desired_cursor = FILLED_BOX_CURSOR, cursor_width = 1, 
  blink_off_cursor = DEFAULT_CURSOR, blink_off_cursor_width = 0, 
  config_scroll_bar_width = 16, config_scroll_bar_cols = 3, 
  config_scroll_bar_height = 16, config_scroll_bar_lines = 1, 
  cost_calculation_baud_rate = 19200, alpha = {1, 1}, gamma = 0, 
  extra_line_spacing = 0, background_pixel = 16777215, foreground_pixel = 0}
(gdb) 

Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: jhair.tocancipa <at> gmail.com
>> Date: Sat, 28 Feb 2015 17:16:28 +0100
>> 
>> 
>> Occasionaly C-x 5 2 or while playing chess emacs segfaults since some
>> weeks back. Haven't found a recipe to reproduce it. Here the gdb
>> backtrace:
>> 
>> (gdb) bt 30
>> #0  0x00007fe7581deb5b in raise (sig=sig <at> entry=11)
>>     at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:37
>> #1  0x00000000004e8034 in terminate_due_to_signal (sig=sig <at> entry=11, 
>>     backtrace_limit=backtrace_limit <at> entry=40) at emacs.c:378
>> #2  0x00000000004ff50e in handle_fatal_signal (sig=sig <at> entry=11)
>>     at sysdep.c:1604
>> #3  0x00000000004ff733 in deliver_thread_signal (sig=sig <at> entry=11, 
>>     handler=0x4ff500 <handle_fatal_signal>) at sysdep.c:1578
>> #4  0x00000000004ff7bf in deliver_fatal_thread_signal (sig=11)
>>     at sysdep.c:1616
>> #5  handle_sigsegv (sig=11, siginfo=<optimized out>, arg=<optimized out>)
>>     at sysdep.c:1667
>> #6  <signal handler called>
>> #7  cache_image (f=0x4ca3830, img=0x7c47f20) at image.c:1775
>
> When this happens, what is the value of FRAME_IMAGE_CACHE(f) in stack
> frame #7, i.e. on line 1775 of image.c?

-- 
Key fingerprint = 5917 806E 3A2F 659B BE6A  8DEE 04B5 52D9 BC07 29A4

Message #14 received at 19971 <at> debbugs.gnu.org (full text, mbox):

From: Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com>
To: 19971 <at> debbugs.gnu.org
Subject: Re: bug#19971: 25.0.50; Emacs segfaults randomly
Date: Thu, 05 Mar 2015 11:48:36 +0100

Emacs still sporadically crashes for me at

#7  cache_image (f=0x11adca0, img=0xd0ba40) at image.c:1775
#8  lookup_image (f=f <at> entry=0x11adca0, spec=spec <at> entry=63812915)
    at image.c:1686
#9  0x00000000005c4950 in Fimage_size (spec=63812915, pixels=0, 
    frame=<optimized out>) at image.c:864
#10 0x0000000000559a27 in Ffuncall (nargs=1, args=0xb27050 <Simage_size>)
    at eval.c:2725

I tried to set:

(setq image-cache-eviction-delay nil)

and my .emacs, however still crashes at the same point after some
minutes of usage and frequently when trying C-x 5 2.

Is there a way to disable the image cache completely?

-- 
Key fingerprint = 5917 806E 3A2F 659B BE6A  8DEE 04B5 52D9 BC07 29A4

Message #17 received at 19971 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com>
Cc: 19971 <at> debbugs.gnu.org
Subject: Re: bug#19971: 25.0.50; Emacs segfaults randomly
Date: Thu, 05 Mar 2015 18:39:46 +0200

> From: Jhair Tocancipa Triana <jhair.tocancipa <at> gmail.com>
> Date: Thu, 05 Mar 2015 11:48:36 +0100
> 
> Emacs still sporadically crashes for me at
> 
> #7  cache_image (f=0x11adca0, img=0xd0ba40) at image.c:1775
> #8  lookup_image (f=f <at> entry=0x11adca0, spec=spec <at> entry=63812915)
>     at image.c:1686
> #9  0x00000000005c4950 in Fimage_size (spec=63812915, pixels=0, 
>     frame=<optimized out>) at image.c:864
> #10 0x0000000000559a27 in Ffuncall (nargs=1, args=0xb27050 <Simage_size>)
>     at eval.c:2725
> 
> I tried to set:
> 
> (setq image-cache-eviction-delay nil)
> 
> and my .emacs, however still crashes at the same point after some
> minutes of usage and frequently when trying C-x 5 2.

If you can easily reproduce it, how about posting the recipe to do
that, including any image files needed for that?

> Is there a way to disable the image cache completely?

You don't want to disable it.

In any case, this bug should be debugged and fixed.

Message #26 received at 19971-done <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: 19971-done <at> debbugs.gnu.org
Subject: Re: bug#19971: 25.0.50; Emacs segfaults randomly
Date: Wed, 07 Dec 2016 15:59:10 -0500

Eli Zaretskii wrote:

> If you can easily reproduce it, how about posting the recipe to do
> that, including any image files needed for that?

No response in 18 months, closing.

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