GNU bug report logs - #22148
25.1.50; Segmentation fault when saving file

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Sujith Manoharan <sujith <at> msujith.org>
Subject: bug#22148: closed (Re: bug#22148: 25.1.50; Segmentation fault
 when saving file)
Date: Thu, 24 Dec 2015 03:47:02 +0000

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

Your bug report

#22148: 25.1.50; Segmentation fault when saving file

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 22148 <at> debbugs.gnu.org.

-- 
22148: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=22148
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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

From: Eli Zaretskii <eliz <at> gnu.org>
To: Sujith Manoharan <sujith <at> msujith.org>
Cc: 22148-done <at> debbugs.gnu.org
Subject: Re: bug#22148: 25.1.50; Segmentation fault when saving file
Date: Thu, 24 Dec 2015 05:47:07 +0200

> From: Sujith Manoharan <sujith <at> msujith.org>
> Date: Thu, 24 Dec 2015 07:34:46 +0530
> Cc: Eli Zaretskii <eliz <at> gnu.org>
> 
> > I've done that - and there doesn't seem to be any crash now.
> > Will update if any crash happens.
> 
> I've not seen any crash in the emacs-25 branch so far,
> and I rebuilt the latest master branch with a full bootstrap and
> both seem to be stable.

Thanks for testing, I'm closing the bug.

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

From: Sujith Manoharan <sujith <at> msujith.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.1.50; Segmentation fault when saving file
Date: Sat, 12 Dec 2015 09:00:51 +0530

Emacs crashes when saving a .org file. It happened a few times
when I would just open it, change a line and save it. I got
the backtrace once in gdb, I've attached it below. The crash
doesn't happen consistently, sometimes opening a mbox crashes too.
I am using the master branch.

(gdb) r
Starting program: /home/sujith/dev/emacs/src/emacs
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffe973f700 (LWP 1576)]

Program received signal SIGSEGV, Segmentation fault.
0x000000000047c38b in encode_char (charset=charset <at> entry=0xb2fd88 <charset_table_init+16072>, c=c <at> entry=173) at charset.c:1760
1760              code_index = GET_TEMP_CHARSET_WORK_ENCODER (c);
(gdb) bt
#0  0x000000000047c38b in encode_char (charset=charset <at> entry=0xb2fd88 <charset_table_init+16072>, c=c <at> entry=173) at charset.c:1760
#1  0x000000000048772b in char_encodable_p (c=c <at> entry=173, attrs=<optimized out>) at coding.c:8941
#2  0x0000000000490088 in Ffind_coding_systems_region_internal (start=6, end=<optimized out>, exclude=<optimized out>) at coding.c:9039
#3  0x0000000000557952 in Ffuncall (nargs=3, args=args <at> entry=0x7fffffffd218) at eval.c:2657
#4  0x000000000058ad63 in exec_byte_code (bytestr=<optimized out>, vector=9685013, maxdepth=<optimized out>,
    args_template=<optimized out>, nargs=nargs <at> entry=2, args=<optimized out>, args <at> entry=0x7fffffffd218) at bytecode.c:880
#5  0x00000000005574e4 in funcall_lambda (fun=9684980, nargs=nargs <at> entry=2, arg_vector=0x7fffffffd218, arg_vector <at> entry=0x7fffffffd3d8)
    at eval.c:2810
#6  0x000000000055778b in Ffuncall (nargs=3, args=args <at> entry=0x7fffffffd3d0) at eval.c:2711
#7  0x000000000058ad63 in exec_byte_code (bytestr=<optimized out>, vector=9688781, maxdepth=<optimized out>,
    args_template=<optimized out>, nargs=nargs <at> entry=5, args=<optimized out>, args <at> entry=0x7fffffffd3d0) at bytecode.c:880
#8  0x00000000005574e4 in funcall_lambda (fun=9688748, nargs=nargs <at> entry=5, arg_vector=0x7fffffffd3d0, arg_vector <at> entry=0x7fffffffd598)
    at eval.c:2810
#9  0x000000000055778b in Ffuncall (nargs=nargs <at> entry=6, args=args <at> entry=0x7fffffffd590) at eval.c:2711
#10 0x000000000055929e in call5 (fn=<optimized out>, arg1=arg1 <at> entry=6, arg2=arg2 <at> entry=264430, arg3=arg3 <at> entry=4067744,
    arg4=arg4 <at> entry=0, arg5=arg5 <at> entry=26114324) at eval.c:2543
#11 0x000000000051b427 in choose_write_coding_system (coding=0x7fffffffd7d0, lockname=26185700, visit=44256, append=0,
    filename=26114324, end=264430, start=6) at fileio.c:4595
#12 write_region (start=6, end=264430, filename=26114324, append=0, visit=44256, lockname=26185700, mustbenew=0, desc=-1)
    at fileio.c:4789
#13 0x000000000051b76f in Fwrite_region (start=<optimized out>, end=<optimized out>, filename=<optimized out>, append=<optimized out>,
    visit=<optimized out>, lockname=<optimized out>, mustbenew=0) at fileio.c:4669
#14 0x00000000005578e8 in Ffuncall (nargs=7, args=args <at> entry=0x7fffffffdb70) at eval.c:2683
#15 0x000000000058ad63 in exec_byte_code (bytestr=<optimized out>, vector=9119981, maxdepth=<optimized out>,
    args_template=<optimized out>, nargs=nargs <at> entry=0, args=<optimized out>, args <at> entry=0x7fffffffdb70) at bytecode.c:880
#16 0x00000000005574e4 in funcall_lambda (fun=9119948, nargs=nargs <at> entry=0, arg_vector=0x7fffffffdb70, arg_vector <at> entry=0x7fffffffdd30)
    at eval.c:2810
#17 0x000000000055778b in Ffuncall (nargs=1, args=args <at> entry=0x7fffffffdd28) at eval.c:2711
#18 0x000000000058ad63 in exec_byte_code (bytestr=<optimized out>, vector=9119861, maxdepth=<optimized out>,
    args_template=<optimized out>, nargs=nargs <at> entry=0, args=<optimized out>, args <at> entry=0x7fffffffdd28) at bytecode.c:880
#19 0x00000000005574e4 in funcall_lambda (fun=9119828, nargs=nargs <at> entry=0, arg_vector=0x7fffffffdd28, arg_vector <at> entry=0x7fffffffdec0)
    at eval.c:2810
#20 0x000000000055778b in Ffuncall (nargs=1, args=args <at> entry=0x7fffffffdeb8) at eval.c:2711
#21 0x000000000058ad63 in exec_byte_code (bytestr=<optimized out>, vector=9119013, maxdepth=<optimized out>,
    args_template=<optimized out>, nargs=nargs <at> entry=1, args=<optimized out>, args <at> entry=0x7fffffffdeb8) at bytecode.c:880
#22 0x00000000005574e4 in funcall_lambda (fun=9118980, nargs=nargs <at> entry=1, arg_vector=0x7fffffffdeb8, arg_vector <at> entry=0x7fffffffe050)
    at eval.c:2810
#23 0x000000000055778b in Ffuncall (nargs=2, args=args <at> entry=0x7fffffffe048) at eval.c:2711
#24 0x000000000058ad63 in exec_byte_code (bytestr=<optimized out>, vector=9117941, maxdepth=<optimized out>,
    args_template=<optimized out>, nargs=nargs <at> entry=1, args=<optimized out>, args <at> entry=0x7fffffffe048) at bytecode.c:880
#25 0x00000000005574e4 in funcall_lambda (fun=9117908, nargs=nargs <at> entry=1, arg_vector=0x7fffffffe048, arg_vector <at> entry=0x7fffffffe270)
    at eval.c:2810
#26 0x000000000055778b in Ffuncall (nargs=nargs <at> entry=2, args=args <at> entry=0x7fffffffe268) at eval.c:2711
#27 0x000000000055338a in Ffuncall_interactively (nargs=2, args=0x7fffffffe268) at callint.c:248
#28 0x0000000000557879 in Ffuncall (nargs=nargs <at> entry=3, args=args <at> entry=0x7fffffffe260) at eval.c:2630
#29 0x0000000000553d57 in Fcall_interactively (function=<optimized out>, record_flag=<optimized out>, keys=<optimized out>)
    at callint.c:836
#30 0x0000000000557952 in Ffuncall (nargs=4, args=args <at> entry=0x7fffffffe4b8) at eval.c:2657
#31 0x000000000058ad63 in exec_byte_code (bytestr=<optimized out>, vector=9567141, maxdepth=<optimized out>,
    args_template=<optimized out>, nargs=nargs <at> entry=1, args=<optimized out>, args <at> entry=0x7fffffffe4b8) at bytecode.c:880
#32 0x00000000005574e4 in funcall_lambda (fun=9567108, nargs=nargs <at> entry=1, arg_vector=0x7fffffffe4b8, arg_vector <at> entry=0x7fffffffe648)
    at eval.c:2810
#33 0x000000000055778b in Ffuncall (nargs=nargs <at> entry=2, args=args <at> entry=0x7fffffffe640) at eval.c:2711
#34 0x0000000000557a5a in call1 (fn=fn <at> entry=14736, arg1=<optimized out>) at eval.c:2509
#35 0x00000000004f52d4 in command_loop_1 () at keyboard.c:1452
#36 0x0000000000555fb7 in internal_condition_case (bfun=bfun <at> entry=0x4f4f00 <command_loop_1>, handlers=handlers <at> entry=18912,
    hfun=hfun <at> entry=0x4ebaf0 <cmd_error>) at eval.c:1309
#37 0x00000000004e727c in command_loop_2 (ignore=ignore <at> entry=0) at keyboard.c:1086
#38 0x0000000000555eab in internal_catch (tag=tag <at> entry=45648, func=func <at> entry=0x4e7260 <command_loop_2>, arg=arg <at> entry=0)
    at eval.c:1073
#39 0x00000000004e7239 in command_loop () at keyboard.c:1065
#40 0x00000000004eb6db in recursive_edit_1 () at keyboard.c:671
#41 0x00000000004eba28 in Frecursive_edit () at keyboard.c:742
#42 0x000000000041620b in main (argc=1, argv=0x7fffffffe9f8) at emacs.c:1652
(gdb) q
										    



In GNU Emacs 25.1.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.24.28)
 of 2015-12-11
Repository revision: 6148555ee5a3d0139ae517803718b3e0357933c7
Windowing system distributor 'The X.Org Foundation', version 11.0.11800000
Configured using:
 'configure --prefix=/usr --with-x-toolkit=gtk2 --without-gconf
 --without-gsettings --without-selinux --without-gnutls'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS NOTIFY ACL LIBXML2
FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK2 X11

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

Major mode: Lisp Interaction

Minor modes in effect:
  display-battery-mode: t
  display-time-mode: t
  iswitchb-mode: t
  savehist-mode: t
  save-place-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-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
  column-number-mode: 1
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
/home/sujith/mail/INBOX-gmail: Reading folder... done
INBOX-gmail: 65 messages, 0 new, 0 unread, 0 deleted
INBOX-gmail: Decoding MIME message...
INBOX-gmail: Inlining text/html by emacs-w3m...
INBOX-gmail: Decoding quoted-printable... done
INBOX-gmail: Inlining text/html by emacs-w3m... done.
INBOX-gmail: Decoding MIME message... done
INBOX-gmail: 65 messages, 0 new, 0 unread, 0 deleted [2 times]
Starting new Ispell process /usr/bin/aspell with default dictionary...
Making completion list... [2 times]

Load-path shadows:
/home/sujith/.emacs.d/elpa/emms-20150519.736/tq hides /home/sujith/dev/emacs/lisp/emacs-lisp/tq

Features:
(shadow emacsbug message idna format-spec rfc822 mml mml-sec gmm-utils
mailheader mailabbrev flyspell ispell vm-reply w3m-form w3m browse-url doc-view
jka-compr image-mode timezone w3m-hist w3m-fb bookmark-w3m w3m-ems w3m-ccl ccl
w3m-favicon w3m-image w3m-proc w3m-util vm-w3m u-vm-color vm-save tapestry
vm-sort sendmail mail-utils vm-rfaddons vm-undo vm-virtual vm-summary-faces
vm-pop utf7 vm-imap vm-thread vm-mime vm-toolbar vm-menu vm-window vm-folder
vm-crypto vm-summary vm-mouse vm-page vm-motion vm-minibuf vm-message vm-misc
vm-macro mairix derived cus-edit cus-start cus-load wid-edit vm-autoloads
vm-vars vm-version vm advice battery time dired-x dired edmacro kmacro xcscope
ring server iswitchb savehist saveplace finder-inf info package epg-config
url-handlers easy-mmode mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047
rfc2045 cl ietf-drums url-parse auth-source cl-seq eieio byte-opt bytecomp
byte-compile cl-extra cconv eieio-core cl-macs gv gnus-util mm-util help-fns
help-mode easymenu cl-loaddefs cl-lib mail-prsvr password-cache url-vars
time-date mule-util pcase tooltip eldoc electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel x-win term/common-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 cl-generic cham georgian utf-8-lang
misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932
hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese
charscript case-table epa-hook jka-cmpr-hook help simple abbrev obarray
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 dbusbind inotify dynamic-setting
font-render-setting move-toolbar gtk x-toolkit x multi-tty make-network-process
emacs)

Memory information:
((conses 16 256181 7551)
 (symbols 48 33012 0)
 (miscs 40 744 316)
 (strings 32 53467 9370)
 (string-bytes 1 1717823)
 (vectors 16 23377)
 (vector-slots 8 549170 10179)
 (floats 8 268 33)
 (intervals 56 1611 0)
 (buffers 976 16)
 (heap 1024 19875 918))

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