Program received signal SIGSEGV, Segmentation fault.

[Håkon Alstadheim]

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In GNU Emacs 21.3.1 (i686-suse-linux, X toolkit, Xaw3d scroll bars)
 of 2004-08-11 on alstadheim
configured using CFLAGS=-g -O2 -march=athlon -mcpu=athlon -pipe          
-DSYSTEM_PURESIZE_EXTRA=5000    -DSITELOAD_PURESIZE_EXTRA=0     -D_GNU_SOURCE   
       -DDEBUG_GCPRO          -DGC_MARK_STACK=2  -DGLYPH_DEBUG 
configured using `configure '--with-gcc' '--with-pop' '--prefix=/usr' 
'--infodir=/usr/share/info' '--mandir=/usr/share/man' 
'--sharedstatedir=/var/lib' '--libexecdir=/usr/lib' '--with-x' '--with-xpm' 
'--with-jpeg' '--with-tiff' '--with-gif' '--with-png' '--with-x-toolkit=lucid' 
'--x-includes=/usr/X11R6/include' '--x-libraries=/usr/X11R6/lib' 
'i686-suse-linux' 'CC=gcc' 'CFLAGS=-g -O2 -march=athlon -mcpu=athlon -pipe      
 -DSYSTEM_PURESIZE_EXTRA=5000    -DSITELOAD_PURESIZE_EXTRA=0     -D_GNU_SOURCE  
        -DDEBUG_GCPRO          -DGC_MARK_STACK=2 ' 'LDFLAGS=' 
'build_alias=i686-suse-linux' 'host_alias=i686-suse-linux' 
'target_alias=i686-suse-linux''
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  value of $LC_CTYPE: en_GB.iso885915
  value of $LC_MESSAGES: en_GB.iso885915
  value of $LC_MONETARY: no_NO
  value of $LC_NUMERIC: en_GB.iso885915
  value of $LC_TIME: no_NO
  value of $LANG: en_US.UTF-8
  locale-coding-system: iso-latin-9
  default-enable-multibyte-characters: nil

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

After using emacs for some time, it crashes.

I've rebuilt the SuSE rpms after removing -s from the linking, and adding some
debug flags. I have no idea what they do, but I'm hoping for some directios
for further digging. 

I also set emacs to use its own malloc. It still crashes, but at least I have
some bactraces, since I've taken to running emacs under DDD


REPORT3:
The most recent crash. I think I have the sources and the debug info and the
binary in sync, so this one should be the most reliable.
(gdb) backtrace
#0  Fgarbage_collect () at alloc.c:1610
#1  0x08141781 in Ffuncall (nargs=3, args=0xbfffddf4) at eval.c:2599
#2  0x0816f23e in Fbyte_code (bytestr=1224637408, vector=1210532736,
maxdepth=5) at bytecode.c:716
#3  0x08141205 in funcall_lambda (fun=1210532576, nargs=1,
arg_vector=0xbfffdf44) at eval.c:2851
#4  0x0814175c in Ffuncall (nargs=2, args=0xbfffdf40) at eval.c:2707
#5  0x08142e44 in call1 (fn=-1742005972, arg1=-922846240) at
eval.c:2456
#6  0x080e740c in timer_check (do_it_now=1) at keyboard.c:4103
#7  0x080e74f1 in readable_events (do_timers_now=Variable
"do_timers_now" is not available.
) at keyboard.c:3181
#8  0x080e75ef in get_input_pending (addr=0x829bd04, do_timers_now=1)
at keyboard.c:6060
#9  0x080e769f in detect_input_pending_run_timers (do_display=1) at
keyboard.c:9473
#10 0x08174ff1 in wait_reading_process_input (time_limit=30,
microsecs=0, read_kbd=268435455, do_display=1) at process.c:2703
#11 0x08052a12 in sit_for (sec=30, usec=0, reading=1, display=1,
initial_display=0) at dispnew.c:6240
#12 0x080ebac1 in read_char (commandflag=1, nmaps=4, maps=0xbfffe3f4,
prev_event=405423148, used_mouse_menu=0xbfffe448) at keyboard.c:2518
#13 0x080ecbfb in read_key_sequence (keybuf=0xbfffe580, bufsize=30,
prompt=405423148, dont_downcase_last=0, can_return_switch_frame=1,
fix_current_buffer=1) at keyboard.c:8209
#14 0x080eec80 in command_loop_1 () at keyboard.c:1451
#15 0x0813fe2a in internal_condition_case (bfun=0x80eeaa0
<command_loop_1>, handlers=405519540, hfun=0x80ea300 <cmd_error>) at
eval.c:1267
#16 0x080e9eb3 in command_loop_2 () at keyboard.c:1245
#17 0x0813ff09 in internal_catch (tag=795766635, func=0x80e9e90
<command_loop_2>, arg=405423148) at eval.c:1030
#18 0x080e9ff1 in command_loop () at keyboard.c:1224
#19 0x080ea09a in recursive_edit_1 () at keyboard.c:950
#20 0x080ea1b5 in Frecursive_edit () at keyboard.c:1006
#21 0x080e0ac7 in main (argc=1, argv=0xbfffec44, envp=0xbfffec4c) at
emacs.c:1547
(gdb) 


REPORT 1:

Program received signal SIGSEGV, Segmentation fault.
make_uninit_multibyte_string (nchars=13, nbytes=13) at alloc.c:1330
/usr/src/packages/BUILD/emacs-21.3/src/alloc.c:1330:34196:beg:0x8127891


(gdb) backtrace
#0  make_uninit_multibyte_string (nchars=13, nbytes=13) at alloc.c:1330
#1  0x081279a5 in make_uninit_string (length=13) at alloc.c:1852
#2  0x081279d7 in make_unibyte_string (contents=0xd <Address 0xd out of 
bounds>, length=13) at alloc.c:1775
#3  0x08127b60 in make_string (contents=0xbfffd32c "~/News/agent/", nbytes=13) 
at alloc.c:1760
#4  0x08127b9e in build_string (str=0xbfffd32c "~/News/agent/") at alloc.c:1840
#5  0x08107831 in Ffile_name_as_directory (file=149322132) at fileio.c:631
#6  0x0813aa72 in Ffuncall (nargs=2, args=0xbfffd3e8) at eval.c:2659
#7  0x08166e4e in Fbyte_code (bytestr=954628500, vector=1220336056, maxdepth=4) 
at bytecode.c:716
#8  0x0813a2c5 in funcall_lambda (fun=1220336184, nargs=3, 
arg_vector=0xbfffd50c) at eval.c:2851
#9  0x0813a7ac in Ffuncall (nargs=4, args=0xbfffd508) at eval.c:2707
#10 0x08166e4e in Fbyte_code (bytestr=951887948, vector=1223135952, 
maxdepth=10) at bytecode.c:716
#11 0x0813a2c5 in funcall_lambda (fun=1223136128, nargs=1, 
arg_vector=0xbfffd650) at eval.c:2851
#12 0x0813a7ac in Ffuncall (nargs=2, args=0xbfffd64c) at eval.c:2707
#13 0x08166e4e in Fbyte_code (bytestr=958355276, vector=1223156848, maxdepth=5) 
at bytecode.c:716
#14 0x0813a2c5 in funcall_lambda (fun=1223156976, nargs=2, 
arg_vector=0xbfffd778) at eval.c:2851
#15 0x0813a7ac in Ffuncall (nargs=3, args=0xbfffd774) at eval.c:2707
#16 0x08166e4e in Fbyte_code (bytestr=958355276, vector=1223153920, maxdepth=4) 
at bytecode.c:716
#17 0x0813a2c5 in funcall_lambda (fun=1223154056, nargs=1, 
arg_vector=0xbfffd894) at eval.c:2851
#18 0x0813a7ac in Ffuncall (nargs=2, args=0xbfffd890) at eval.c:2707
#19 0x08166e4e in Fbyte_code (bytestr=958355276, vector=1223129464, maxdepth=5) 
at bytecode.c:716
#20 0x0813a2c5 in funcall_lambda (fun=1223129688, nargs=0, 
arg_vector=0xbfffd9c4) at eval.c:2851
#21 0x0813a7ac in Ffuncall (nargs=1, args=0xbfffd9c0) at eval.c:2707
#22 0x08166e4e in Fbyte_code (bytestr=415400660, vector=1222288520, maxdepth=6) 
at bytecode.c:716
#23 0x0813a2c5 in funcall_lambda (fun=1222289056, nargs=3, 
arg_vector=0xbfffdaf4) at eval.c:2851
#24 0x0813a7ac in Ffuncall (nargs=4, args=0xbfffdaf0) at eval.c:2707
#25 0x08166e4e in Fbyte_code (bytestr=405394476, vector=1222232560, maxdepth=6) 
at bytecode.c:716
#26 0x0813a2c5 in funcall_lambda (fun=1222233088, nargs=6, 
arg_vector=0xbfffdc24) at eval.c:2851
#27 0x0813a7ac in Ffuncall (nargs=7, args=0xbfffdc20) at eval.c:2707
#28 0x08166e4e in Fbyte_code (bytestr=405394476, vector=1222231080, maxdepth=8) 
at bytecode.c:716
#29 0x0813a2c5 in funcall_lambda (fun=1222231256, nargs=6, 
arg_vector=0xbfffdd54) at eval.c:2851
#30 0x0813a7ac in Ffuncall (nargs=7, args=0xbfffdd50) at eval.c:2707
#31 0x08166e4e in Fbyte_code (bytestr=405394476, vector=1216247352, maxdepth=8) 
at bytecode.c:716
#32 0x0813a2c5 in funcall_lambda (fun=1221978408, nargs=3, 
arg_vector=0xbfffde84) at eval.c:2851
#33 0x0813a7ac in Ffuncall (nargs=4, args=0xbfffde80) at eval.c:2707
#34 0x08166e4e in Fbyte_code (bytestr=405394476, vector=1222110600, 
maxdepth=11) at bytecode.c:716
#35 0x0813a2c5 in funcall_lambda (fun=1221875656, nargs=5, 
arg_vector=0xbfffdfc4) at eval.c:2851
#36 0x0813a7ac in Ffuncall (nargs=6, args=0xbfffdfc0) at eval.c:2707
#37 0x08166e4e in Fbyte_code (bytestr=43, vector=1222163240, maxdepth=7) at 
bytecode.c:716
#38 0x0813a2c5 in funcall_lambda (fun=1221652040, nargs=2, 
arg_vector=0xbfffe0f4) at eval.c:2851
#39 0x0813a7ac in Ffuncall (nargs=3, args=0xbfffe0f0) at eval.c:2707
#40 0x08166e4e in Fbyte_code (bytestr=405394476, vector=1222334840, maxdepth=7) 
at bytecode.c:716
#41 0x0813a2c5 in funcall_lambda (fun=1221652360, nargs=0, 
arg_vector=0xbfffe224) at eval.c:2851
#42 0x0813a7ac in Ffuncall (nargs=1, args=0xbfffe220) at eval.c:2707
#43 0x08166e4e in Fbyte_code (bytestr=405394524, vector=1222332760, maxdepth=5) 
at bytecode.c:716
#44 0x0813a2c5 in funcall_lambda (fun=1221653120, nargs=1, 
arg_vector=0xbfffe394) at eval.c:2851
#45 0x0813a7ac in Ffuncall (nargs=2, args=0xbfffe390) at eval.c:2707
#46 0x0813783f in Fcall_interactively (function=416810828, 
record_flag=405394476, keys=1210759592) at callint.c:797
#47 0x080e0184 in Fcommand_execute (cmd=416810828, record_flag=405394476, 
keys=13, special=405394476) at keyboard.c:9250
#48 0x080ea8f5 in command_loop_1 () at keyboard.c:1661
#49 0x081392aa in internal_condition_case (bfun=0x80ea540 <command_loop_1>, 
handlers=405490820, hfun=0x80e60f0 <cmd_error>) at eval.c:1267
#50 0x080e5ca3 in command_loop_2 () at keyboard.c:1245
#51 0x08139389 in internal_catch (tag=13, func=0x80e5c80 <command_loop_2>, 
arg=405394476) at eval.c:1030
#52 0x080e5de1 in command_loop () at keyboard.c:1224
#53 0x080e5e8a in recursive_edit_1 () at keyboard.c:950
#54 0x080e5fa5 in Frecursive_edit () at keyboard.c:1006
#55 0x080dcd67 in main (argc=1, argv=0xbfffec54, envp=0xbfffec5c) at 
emacs.c:1547
(gdb) display string_free_list
(gdb)


REPORT 2:
After viewing some .tgz files and during "tar xzvf" in a shell buffer
Bogus stacktrace? Fgargage collect is not on line 1635!! 
(gdb) backtrace
#0  0x403b1635 in bcopy () from /lib/tls/libc.so.6
#1  0x081286f6 in Fgarbage_collect () at alloc.c:1635 | NOTE FROM haa:
                                                        line 1635 is in 
compact_small_strings
#2  0x081398d7 in Feval (form=1479531132) at eval.c:1912
#3  0x081391a0 in internal_condition_case_1 (bfun=0x8139630 <Feval>, 
arg=1479531132, handlers=405490820, hfun=0x8066200 <safe_eval_handler>) at 
eval.c:1307
#4  0x0806e749 in safe_eval (sexpr=-7356) at xdisp.c:1309
#5  0x0806f91a in display_mode_element (it=0xbfffd1b0, depth=2, 
field_width=-42, precision=-42, elt=1479531164, risky=0) at xdisp.c:13746
#6  0x0806f6e8 in display_mode_element (it=0xbfffd1b0, depth=1, field_width=0, 
precision=0, elt=1496530636, risky=0) at xdisp.c:13815
#7  0x08070252 in display_mode_line (w=Variable "w" is not available.
) at xdisp.c:13491
#8  0x08070407 in display_mode_lines (w=0x9147590) at xdisp.c:13448
#9  0x080714d8 in redisplay_window (window=1226077584, just_this_one_p=0) at 
xdisp.c:10490
#10 0x08073126 in redisplay_windows (window=Variable "window" is not available.
) at xdisp.c:9247
#11 0x080730fa in redisplay_windows (window=Variable "window" is not available.
) at xdisp.c:9245
#12 0x080743ea in redisplay_internal (preserve_echo_area=Variable 
"preserve_echo_area" is not available.
) at xdisp.c:8850
#13 0x080e6c8a in read_char (commandflag=1, nmaps=3, maps=0xbfffe404, 
prev_event=405394476, used_mouse_menu=0xbfffe458) at keyboard.c:2299
#14 0x080e88a6 in read_key_sequence (keybuf=0xbfffe590, bufsize=30, 
prompt=405394476, dont_downcase_last=0, can_return_switch_frame=1, 
fix_current_buffer=1) at keyboard.c:8209
#15 0x080ea720 in command_loop_1 () at keyboard.c:1451
#16 0x081392aa in internal_condition_case (bfun=0x80ea540 <command_loop_1>, 
handlers=405490820, hfun=0x80e60f0 <cmd_error>) at eval.c:1267
#17 0x080e5ca3 in command_loop_2 () at keyboard.c:1245
#18 0x08139389 in internal_catch (tag=-7356, func=0x80e5c80 <command_loop_2>, 
arg=405394476) at eval.c:1030
#19 0x080e5de1 in command_loop () at keyboard.c:1224
#20 0x080e5e8a in recursive_edit_1 () at keyboard.c:950
#21 0x080e5fa5 in Frecursive_edit () at keyboard.c:1006
#22 0x080dcd67 in main (argc=1, argv=0xbfffec54, envp=0xbfffec5c) at 
emacs.c:1547
(gdb) 


Recent input:
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
M-x r e p o r t SPC <tab> b SPC <return>

Recent messages:
.gnu-emacs OK
Loading regexp-opt...done
Loading /home/hakon/elisp/holidays-norsk.el (source)...done
.emacs OK
min-etter-init
Loading imenu...done
Loading mwheel...done
Loading lazy-lock...done
Loading emacsbug...done
Loading view...done