bug#15583: 24.3.50; GC crashes

bug#15583: 24.3.50; GC crashes

[Richard Stallman]

Over the past few weeks, since updating, I have had several crashes in
mark_object.  The crashes started when I updated somewhere between Sep
17 and Sep 22.  (I don't know how to tell more precisely when that
was.)

I did another update a week ago, hoping the problem would go away,
but yesterday I got another crash of the same sort.

My previous update had been around Aug 18; the crashes did not
happen in that version.

mark_object is reached about 3 levels down from mark_memory.
Thus, I could not easily tell much about what data structure it was.
If it is useful, I will try harder to get more info.




In GNU Emacs 24.3.50.11 (mips64el-unknown-linux-gnu, GTK+ Version 2.20.1)
 of 2013-10-03 on chiefs-gnewsense
Bzr revision: 114502 monnier@iro.umontreal.ca-20131002233348-j245zww7t0dfmeng
System Description:	gNewSense GNU/Linux 3.0 (parkes)

Configured using:
 `configure 'CFLAGS=-g -O0''

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: RMAIL

Minor modes in effect:
  gpm-mouse-mode: t
  tooltip-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
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  line-number-mode: t
  transient-mark-mode: t
  abbrev-mode: t

Recent input:
m e , SPC o r SPC s o m e SPC o t h e r SPC v 4 r DEL 
DEL e r s i o n SPC o f SPC i t . RET ESC ; C-c C-c 
n d x d u d d x n d u x C-u C-u C-n C-u C-n C-n C-@ 
C-n C-n C-n C-n r ESC , C-p C-p C-p C-p C-u C-n C-n 
C-o C-o C o u l d SPC s o m e o n e SPC t r y SPC t 
h a t ? C-c C-c ESC v C-x b o u t g TAB RET g C-p C-p 
C-p C-p C-o C-x o C-x b R TAB RET 1 r C-x o C-u C-p 
C-@ C-n ESC , C-p ESC f ESC f ESC f ESC f C-k RET RET 
T h e SPC w o r d SPC i s SPC " p i q u e d " . SPC 
SPC ( I t SPC c o m e ESC DEL i s SPC a SPC r c DEL 
e c e n t SPC b o r r o w i n g SPC f r o m SPC F r 
n e c h DEL DEL DEL DEL e n c . DEL h . ) C-n C-c C-c 
d d u d d d u x o g i t h TAB ESC DEL x m a i l / g 
i t h TAB RET d d ESC x r e s e n d SPC m a i l SPC 
a d d DEL DEL DEL SPC a d d r ESC DEL ESC DEL r e p 
o r t SPC e m a TAB RET

Recent messages:
Wrote /home/rms/outgoing/out-59
Sending...done
Mark activated
Mark set
Auto-saving...done
Sending...
Wrote /home/rms/outgoing/out-60
Sending...done
Expunging deleted messages...done
Added to /home/rms/xmail/github.xmail

Load-path shadows:
/home/rms/emacs-bzr/trunk/lisp/net/shr-color hides /home/rms/emacs-bzr/trunk/lisp/gnus/shr-color
/home/rms/emacs-bzr/trunk/lisp/net/shr hides /home/rms/emacs-bzr/trunk/lisp/gnus/shr

Features:
(shadow emacsbug rmailout mailalias qp quail help-mode misearch
multi-isearch rmailmm message sendmail format-spec rfc822 mml easymenu
mml-sec mm-decode mm-bodies mm-encode mailabbrev gmm-utils mailheader
mail-parse rfc2231 dired t-mouse finder-inf package rmailedit rmail
rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils time-date
paren cus-start cus-load advice help-fns tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image
regexp-opt fringe tabulated-list newcomment 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 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)
        [ To any NSA and FBI agents reading my email: please consider
        [ whether defending the US Constitution against all enemies,
        [ foreign or domestic, requires you to follow Snowden's example.


-- 
Dr Richard Stallman
President, Free Software Foundation
51 Franklin St
Boston MA 02110
USA
www.fsf.org  www.gnu.org
Skype: No way! That's nonfree (freedom-denying) software.
  Use Ekiga or an ordinary phone call.

bug#15583: 24.3.50; GC crashes

[Eli Zaretskii]

> Date: Thu, 10 Oct 2013 12:28:19 -0400
> From: Richard Stallman <rms@gnu.org>
> 
> 
> Over the past few weeks, since updating, I have had several crashes in
> mark_object.  The crashes started when I updated somewhere between Sep
> 17 and Sep 22.  (I don't know how to tell more precisely when that
> was.)
> 
> I did another update a week ago, hoping the problem would go away,
> but yesterday I got another crash of the same sort.
> 
> My previous update had been around Aug 18; the crashes did not
> happen in that version.

Richard, could you please establish the exact bzr revisions that you
had after the update "around Aug 18" and after the update in
September?  This could help us find the relevant changes.  Below I
explain how to find out these facts.

In your ~/.bzr.log file, you should see a line like this announcing
each "bzr update" command:

  Sat 2014-03-22 10:32:23 +0200
  0.047  bazaar version: 2.6b1
  0.047  bzr arguments: [u'up']

If you actually type the full "update" command, instead of the short
"up", the last line will say this instead:

  0.047  bzr arguments: [u'update']

In any case, the first line shows the date of the update command.  One
of the last lines in the log related to this command will look like
this:

  [ 5068] 2014-03-22 10:32:45.552 INFO: Updated to revision 116839 of branch bzr+ssh://eliz@bzr.savannah.gnu.org/emacs/trunk

(with "rms" instead of "eliz" in your case).  This shows the revision
to which you updated your tree.

Please find the 2 updates on or around the dates you mentioned, and
tell which revisions did you get in each update.

Thanks.

bug#15583: 24.3.50; GC crashes

[Richard Stallman]

[[[ To any NSA and FBI agents reading my email: please consider    ]]]
[[[ whether defending the US Constitution against all enemies,     ]]]
[[[ foreign or domestic, requires you to follow Snowden's example. ]]]


Sat 2013-08-17 13:27:51 -0400
0.283  bazaar version: 2.1.2
0.285  bzr arguments: [u'update']
[ 7446] 2013-08-17 13:34:06.047 INFO: Updated to revision 113938 of branch bzr+ssh://rms@bzr.savannah.gnu.org/emacs/trunk
374.568  Transferred: 28182KiB (75.7K/s r:28177K w:4K)
374.569  return code 1

Fri 2013-09-13 09:04:59 -0400
0.265  bazaar version: 2.1.2
0.267  bzr arguments: [u'up']
[22862] 2013-09-13 09:11:32.677 INFO: Updated to revision 114268 of branch bzr+ssh://rms@bzr.savannah.gnu.org/emacs/trunk
393.570  Transferred: 12999KiB (33.3K/s r:12992K w:7K)
393.571  return code 1

Tue 2013-09-17 06:20:36 -0400
0.654  bazaar version: 2.1.2
0.656  bzr arguments: [u'up']
[25162] 2013-09-17 06:27:26.891 INFO: Updated to revision 114326 of branch bzr+ssh://rms@bzr.savannah.gnu.org/emacs/trunk
411.058  Transferred: 9032KiB (22.2K/s r:9028K w:4K)
411.059  return code 1

-- 
Dr Richard Stallman
President, Free Software Foundation
51 Franklin St
Boston MA 02110
USA
www.fsf.org  www.gnu.org
Skype: No way! That's nonfree (freedom-denying) software.
  Use Ekiga or an ordinary phone call.

bug#15583: 24.3.50; GC crashes

[Eli Zaretskii]

> Date: Sat, 22 Mar 2014 19:56:55 -0400
> From: Richard Stallman <rms@gnu.org>
> CC: 15583@debbugs.gnu.org
> 
> Sat 2013-08-17 13:27:51 -0400
> 0.283  bazaar version: 2.1.2
> 0.285  bzr arguments: [u'update']
> [ 7446] 2013-08-17 13:34:06.047 INFO: Updated to revision 113938 of branch bzr+ssh://rms@bzr.savannah.gnu.org/emacs/trunk
> 374.568  Transferred: 28182KiB (75.7K/s r:28177K w:4K)
> 374.569  return code 1
> 
> Fri 2013-09-13 09:04:59 -0400
> 0.265  bazaar version: 2.1.2
> 0.267  bzr arguments: [u'up']
> [22862] 2013-09-13 09:11:32.677 INFO: Updated to revision 114268 of branch bzr+ssh://rms@bzr.savannah.gnu.org/emacs/trunk
> 393.570  Transferred: 12999KiB (33.3K/s r:12992K w:7K)
> 393.571  return code 1
> 
> Tue 2013-09-17 06:20:36 -0400
> 0.654  bazaar version: 2.1.2
> 0.656  bzr arguments: [u'up']
> [25162] 2013-09-17 06:27:26.891 INFO: Updated to revision 114326 of branch bzr+ssh://rms@bzr.savannah.gnu.org/emacs/trunk
> 411.058  Transferred: 9032KiB (22.2K/s r:9028K w:4K)
> 411.059  return code 1

Thanks.