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Re: [ANNOUNCEMENT] Updated: emacs-24.3.93-3 [TEST]


On 13/09/2014 17:21, Ken Brown wrote:
*** emacs-24.3.93-3
*** emacs-X11-24.3.93-3
*** emacs-w32-24.3.93-3
*** emacs-el-24.3.93-3

Emacs is a powerful, customizable, self-documenting, modeless text
editor.  Emacs contains special code editing features, a scripting
language (elisp), and the capability to read mail, news, and more
without leaving the editor.

I have been suffering from some crashes with emacs-X11 24.3.93-3 on x86_64

This seems to have crossed my threshold of apathy, so I've been running emacs under gdb with a breakpoint on emacs_abort (since it seems to die with SIGABORT which can't be usefully backtraced...)

I get a backtrace starting as follows (full backtrace is attached):

#0  emacs_abort () at /usr/src/debug/emacs-24.3.93-3/src/sysdep.c:2137
#1 0x00000001004ef726 in overlays_at (pos=pos@entry=15602, extend=extend@entry=true, vec_ptr=vec_ptr@entry=0x80ee30, len_ptr=len_ptr@entry=0x80ee38, next_ptr=next_ptr@entry=0x0, prev_ptr=prev_ptr@entry=0x80ee28, change_req=change_req@entry=true) at /usr/src/debug/emacs-24.3.93-3/src/buffer.c:2854 #2 0x00000001004efcbc in Fprevious_overlay_change (pos=<optimized out>, pos@entry=62408)
    at /usr/src/debug/emacs-24.3.93-3/src/buffer.c:4312
#3 0x000000010058d202 in Fprevious_char_property_change (position=position@entry=62408, limit=limit@entry=61840)
    at /usr/src/debug/emacs-24.3.93-3/src/textprop.c:768
#4 0x000000010058eee6 in Fprevious_single_char_property_change (position=62408, position@entry=65840, prop=4304918466, object=object@entry=4304695346, limit=<optimized out>, limit@entry=61840)
    at /usr/src/debug/emacs-24.3.93-3/src/textprop.c:930
#5 0x0000000100414a71 in string_buffer_position_lim (string=25780888481, from=<optimized out>, to=<optimized out>, back_p=<optimized out>) at /usr/src/debug/emacs-24.3.93-3/src/xdisp.c:5404 #6 0x00000001004458f7 in note_mouse_highlight (f=<optimized out>, x=<optimized out>, y=<optimized out>)
    at /usr/src/debug/emacs-24.3.93-3/src/xdisp.c:29456
#7 0x00000001004a188f in XTframe_up_to_date (f=<optimized out>) at /usr/src/debug/emacs-24.3.93-3/src/xterm.c:634 #8 0x000000010043726c in redisplay_internal () at /usr/src/debug/emacs-24.3.93-3/src/xdisp.c:14026 #9 0x00000001004397a3 in redisplay_preserve_echo_area (from_where=from_where@entry=2)
    at /usr/src/debug/emacs-24.3.93-3/src/xdisp.c:14120

This looks somewhat similar to the problem in [1], so following the advice there in a directed plokta:

(gdb) source /usr/src/emacs-24.3.93-3.src/emacs-24.3.93/src/.gdbinit
[...]
(gdb) p end
$14 = <optimized out>
(gdb) p overlay
$15 = <optimized out>
(gdb) p pos
$16 = 15602
(gdb) p extend
$17 = true
(gdb) p vec_ptr
$18 = (Lisp_Object **) 0x80ee30
(gdb) p *vec_ptr
$20 = (Lisp_Object *) 0x6040f9000
(gdb) p **vec_ptr
$21 = 25839311040
(gdb) xtype
Lisp_Int0
(gdb) xint
$38 = 6459827760
(gdb) p len_ptr
$22 = (ptrdiff_t *) 0x80ee38
(gdb) p *len_ptr
$23 = 10
(gdb) p next_ptr
$24 = (ptrdiff_t *) 0x0
(gdb) p prev_ptr
$25 = (ptrdiff_t *) 0x80ee28
(gdb) p *prev_ptr
$26 = 8449600
(gdb) p change_req
$27 = true
(gdb) p overlay
$28 = <optimized out>
(gdb) p endpos
(gdb) p tail
$35 = (struct Lisp_Overlay *) 0x603f5c4a8
(gdb) p *tail
$36 = {
  type = Lisp_Misc_Overlay,
  gcmarkbit = false,
  spacer = 1171,
  next = 0x601042a58,
  start = 25836393491,
  end = 25836242131,
  plist = 25837850102
}

Please let me know what else I can do to help investigate the problem.

[1] https://cygwin.com/ml/cygwin/2014-08/msg00417.html

Attachment: emacs-bt.txt
Description: Text document

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