SEGV in alloc.c on x86_64

[Reiner Steib]

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

While using Gnus, Emacs received SIGSEGV.  See gdb backtrace and
xbacktrace below.  The gdb session is still running so I can provide
more information if necessary.


In GNU Emacs 22.0.50.14 (x86_64-unknown-linux-gnu, GTK+ Version 2.4.9)
 of 2005-02-21 on bridgekeeper
Distributor `The X.Org Foundation', version 11.0.60801000
configured using `configure '--prefix=/import/xtra/emacs/HEAD' '--with-gtk' 
'--exec-prefix=/import/xtra/emacs/HEAD-x86_64''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: POSIX
  value of $LC_CTYPE: address@hidden
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US
  locale-coding-system: iso-latin-9
  default-enable-multibyte-characters: t

--8<---------------cut here---------------start------------->8---
[Thread debugging using libthread_db enabled]
[New Thread 182940272320 (LWP 27119)]
Detaching after fork from child process 27120.
Detaching after fork from child process 27123.
[...]
Detaching after fork from child process 2814.
Detaching after fork from child process 3014.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 182940272320 (LWP 27119)]
Fcons (car=22960485, cdr=9613345)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/alloc.c:2680
2680          cons_free_list = *(struct Lisp_Cons **)&cons_free_list->cdr;
(gdb) bt
#0  Fcons (car=22960485, cdr=9613345)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/alloc.c:2680
#1  0x0000000000539708 in Flist (nargs=15, args=0x7fbfffb660)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/alloc.c:2768
#2  0x0000000000558aa2 in Fmapcar (function=14657425, sequence=66356181)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/fns.c:3089
#3  0x000000000054ec3d in Ffuncall (nargs=Variable "nargs" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:2783
#4  0x000000000057ac89 in Fbyte_code (bytestr=17796449, vector=Variable 
"vector" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/bytecode.c:686
#5  0x000000000054e45d in funcall_lambda (fun=18092564, nargs=2, 
    arg_vector=0x7fbfffb9c0)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:2967
#6  0x000000000054e9be in Ffuncall (nargs=Variable "nargs" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:2837
#7  0x000000000057ac89 in Fbyte_code (bytestr=18542417, vector=Variable 
"vector" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/bytecode.c:686
#8  0x000000000054e010 in Feval (form=Variable "form" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:2136
#9  0x0000000000550b88 in Fcondition_case (args=Variable "args" is not 
available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:1332
#10 0x000000000057a21f in Fbyte_code (bytestr=18091585, vector=Variable 
"vector" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/bytecode.c:864
#11 0x000000000054e45d in funcall_lambda (fun=18630276, nargs=0, 
    arg_vector=0x7fbfffbfa0)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:2967
#12 0x000000000054e9be in Ffuncall (nargs=Variable "nargs" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:2837
#13 0x00000000005503d0 in run_hook_with_args (nargs=1, args=0x7fbfffbf98, 
    cond=to_completion)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:2448
#14 0x0000000000550572 in Frun_hooks (nargs=1, args=0x7fbfffc048)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:2311
#15 0x000000000054ec74 in Ffuncall (nargs=Variable "nargs" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:2761
#16 0x0000000000550212 in call1 (fn=Variable "fn" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:2570
#17 0x000000000054d6d1 in internal_condition_case (
    bfun=0x4e8900 <safe_run_hooks_1>, handlers=9613441, 
    hfun=0x4ee9b0 <safe_run_hooks_error>)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:1385
#18 0x00000000004ee908 in safe_run_hooks (hook=Variable "hook" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/keyboard.c:2072
#19 0x000000000046a01f in update_menu_bar (f=0xe5bc60, save_match_data=0)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/xdisp.c:8473
#20 0x00000000004737da in prepare_menu_bars ()
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/xdisp.c:8365
#21 0x0000000000475ed2 in redisplay_internal (preserve_echo_area=Variable 
"preserve_echo_area" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/xdisp.c:10042
#22 0x0000000000476ffa in redisplay_preserve_echo_area (from_where=Variable 
"from_where" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/xdisp.c:10641
#23 0x00000000004ed412 in detect_input_pending_run_timers (do_display=1)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/keyboard.c:9884
#24 0x000000000058139e in wait_reading_process_output (time_limit=0, 
    microsecs=0, read_kbd=-1, do_display=1, wait_for_cell=9613345, 
    wait_proc=0x0, just_wait_proc=0)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/process.c:4453
#25 0x00000000004f0cda in read_char (commandflag=1, nmaps=4, 
    maps=0x7fbfffd4e0, prev_event=9613345, used_mouse_menu=0x7fbfffd564)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/keyboard.c:3917
#26 0x00000000004f3656 in read_key_sequence (keybuf=0x7fbfffd700, bufsize=30, 
    prompt=9613345, dont_downcase_last=0, can_return_switch_frame=1, 
    fix_current_buffer=1)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/keyboard.c:8803
#27 0x00000000004f527d in command_loop_1 ()
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/keyboard.c:1538
#28 0x000000000054d6d1 in internal_condition_case (
    bfun=0x4f50e0 <command_loop_1>, handlers=9724865, 
    hfun=0x4ef730 <cmd_error>)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:1385
#29 0x00000000004ee99a in command_loop_2 ()
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/keyboard.c:1319
#30 0x000000000054d820 in internal_catch (tag=Variable "tag" is not available.
)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/eval.c:1144
#31 0x00000000004ef3c8 in command_loop ()
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/keyboard.c:1298
#32 0x00000000004ef461 in recursive_edit_1 ()
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/keyboard.c:991
#33 0x00000000004ef58e in Frecursive_edit ()
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/keyboard.c:1052
#34 0x00000000004e4e4d in main (argc=9, argv=0x7fbfffdf88)
    at /home/dept/ste/src/links/emacs/cvs-HEAD/emacs/src/emacs.c:1766
(gdb) xbacktrace 
"mapcar"
"easy-menu-create-menu"
"byte-code"
"recentf-update-menu"
"run-hooks"
(gdb) 
--8<---------------cut here---------------end--------------->8---

Bye, Reiner.
-- 
       ,,,
      (o o)
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