From: Jim Meyering <jim@meyering.net>
To: Emacs development discussions <emacs-devel@gnu.org>
Subject: freed-memory use in very recent emacs
Date: Tue, 15 Dec 2009 22:38:54 +0100 [thread overview]
Message-ID: <87eimvc3yp.fsf@meyering.net> (raw)
I was running emacs+gnus under gdb on debian unstable amd64
(built from emacs.git sources of ~2 days ago) and got a segfault.
I'll keep the gdb session around for a few days in case anyone
wants more info than this backtrace:
Program received signal SIGSEGV, Segmentation fault.
0x0000000000543018 in mark_object (arg=<value optimized out>)
at /mirror/d/emacs/src/alloc.c:5476
5476 MARK_INTERVAL_TREE (ptr->intervals);
(gdb) p ptr
$1 = (struct Lisp_String *) 0xb18a00
(gdb) p ptr->intervals
$2 = (INTERVAL) 0x3d3d3d3d3d3d3d3d
(gdb) bt
#0 0x0000000000543018 in mark_object (arg=<value optimized out>)
at /mirror/d/emacs/src/alloc.c:5476
#1 0x0000000000543c82 in mark_maybe_pointer ()
at /mirror/d/emacs/src/alloc.c:4245
#2 mark_memory () at /mirror/d/emacs/src/alloc.c:4297
#3 mark_stack () at /mirror/d/emacs/src/alloc.c:4530
#4 0x0000000000546d58 in Fgarbage_collect ()
at /mirror/d/emacs/src/alloc.c:5112
#5 0x000000000055c90d in Ffuncall (nargs=2, args=0x7fffffffa0f0)
at /mirror/d/emacs/src/eval.c:2949
#6 0x000000000055db5a in call1 (fn=<value optimized out>,
arg1=<value optimized out>) at /mirror/d/emacs/src/eval.c:2796
#7 0x000000000044403b in decode_mode_spec (it=0x7fffffffa400,
depth=<value optimized out>, field_width=<value optimized out>,
precision=<value optimized out>, elt=<value optimized out>,
props=<value optimized out>, risky=0) at /mirror/d/emacs/src/xdisp.c:18633
#8 display_mode_element (it=0x7fffffffa400, depth=<value optimized out>,
field_width=<value optimized out>, precision=<value optimized out>,
elt=<value optimized out>, props=<value optimized out>, risky=0)
at /mirror/d/emacs/src/xdisp.c:17591
#9 0x00000000004446f5 in display_mode_element (it=0x7fffffffa400,
depth=<value optimized out>, field_width=<value optimized out>,
precision=-5, elt=<value optimized out>, props=<value optimized out>,
risky=0) at /mirror/d/emacs/src/xdisp.c:17785
#10 0x00000000004446f5 in display_mode_element (it=0x7fffffffa400,
depth=<value optimized out>, field_width=<value optimized out>,
precision=0, elt=<value optimized out>, props=<value optimized out>,
risky=0) at /mirror/d/emacs/src/xdisp.c:17785
#11 0x0000000000444d2c in display_mode_line (w=<value optimized out>,
face_id=MODE_LINE_FACE_ID, format=<value optimized out>)
at /mirror/d/emacs/src/xdisp.c:17297
#12 0x0000000000444ff7 in display_mode_lines (w=0x3bf8670)
at /mirror/d/emacs/src/xdisp.c:17241
#13 0x000000000044b3b5 in redisplay_window (window=62883445,
just_this_one_p=<value optimized out>) at /mirror/d/emacs/src/xdisp.c:13868
#14 0x000000000044d707 in redisplay_window_1 (window=4412750543122677053)
at /mirror/d/emacs/src/xdisp.c:12287
#15 0x000000000055bbf7 in internal_condition_case_1 (
bfun=<value optimized out>, arg=<value optimized out>,
handlers=<value optimized out>, hfun=<value optimized out>)
at /mirror/d/emacs/src/eval.c:1538
#16 0x000000000044f542 in redisplay_internal (
preserve_echo_area=<value optimized out>)
at /mirror/d/emacs/src/xdisp.c:11905
#17 0x000000000044fe58 in redisplay_preserve_echo_area (
from_where=<value optimized out>) at /mirror/d/emacs/src/xdisp.c:12077
#18 0x00000000004ec030 in detect_input_pending_run_timers (do_display=1)
at /mirror/d/emacs/src/keyboard.c:10678
#19 0x000000000059f481 in wait_reading_process_output (
time_limit=<value optimized out>, microsecs=<value optimized out>,
read_kbd=<value optimized out>, do_display=<value optimized out>,
wait_for_cell=<value optimized out>, wait_proc=<value optimized out>,
just_wait_proc=0) at /mirror/d/emacs/src/process.c:5022
#20 0x0000000000415784 in sit_for (timeout=120, reading=1, do_display=1)
at /mirror/d/emacs/src/dispnew.c:6654
#21 0x00000000004ee269 in read_char (commandflag=<value optimized out>,
nmaps=<value optimized out>, maps=<value optimized out>,
prev_event=<value optimized out>, used_mouse_menu=<value optimized out>,
end_time=<value optimized out>) at /mirror/d/emacs/src/keyboard.c:2953
#22 0x00000000004ef2f5 in read_key_sequence (keybuf=0x7fffffffdf10,
bufsize=<value optimized out>, prompt=11635410,
dont_downcase_last=<value optimized out>,
can_return_switch_frame=<value optimized out>,
fix_current_buffer=<value optimized out>)
at /mirror/d/emacs/src/keyboard.c:9485
#23 0x00000000004f1790 in command_loop_1 ()
at /mirror/d/emacs/src/keyboard.c:1643
#24 0x000000000055bd5f in internal_condition_case (bfun=<value optimized out>,
handlers=<value optimized out>, hfun=<value optimized out>)
at /mirror/d/emacs/src/eval.c:1490
#25 0x00000000004ea22e in command_loop_2 ()
at /mirror/d/emacs/src/keyboard.c:1360
#26 0x000000000055be8a in internal_catch (tag=<value optimized out>,
func=<value optimized out>, arg=<value optimized out>)
at /mirror/d/emacs/src/eval.c:1226
#27 0x00000000004eac31 in command_loop ()
at /mirror/d/emacs/src/keyboard.c:1339
#28 0x00000000004eb00a in recursive_edit_1 ()
at /mirror/d/emacs/src/keyboard.c:954
#29 0x00000000004eb147 in Frecursive_edit ()
at /mirror/d/emacs/src/keyboard.c:1016
#30 0x00000000004de85c in main (argc=0, argv=0x7fffffffe748)
at /mirror/d/emacs/src/emacs.c:1833
(gdb)
next reply other threads:[~2009-12-15 21:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-15 21:38 Jim Meyering [this message]
2009-12-15 22:54 ` freed-memory use in very recent emacs Chong Yidong
2009-12-16 8:26 ` Jim Meyering
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