Re: emacs from head segfaults when run with -nw

[Juanma Barranquero <lekktu@gmail.com>]

On Sat, Apr 17, 2010 at 09:55, Eli Zaretskii <eliz@gnu.org> wrote:

> You go up the call stack printing the objects that are being marked,
> until you find one that is a symbol with a meaningful name.

See attached log.

    Juanma



(gdb) bt
#0  w32_abort () at w32fns.c:7349
#1  0x0104b85c in die (msg=0x15489a0 "assertion failed:
STRINGP(ptr->xname)", file=0x1546d38 "alloc.c", line=5576) at
alloc.c:6250
#2  0x01049fed in mark_object (arg=49829890) at alloc.c:5576
#3  0x0104988d in mark_char_table (ptr=0x3394e00) at alloc.c:5396
#4  0x01049880 in mark_char_table (ptr=0x3382f00) at alloc.c:5393
#5  0x01049880 in mark_char_table (ptr=0x3391e00) at alloc.c:5393
#6  0x01049f0a in mark_object (arg=54074885) at alloc.c:5558
#7  0x01049fa7 in mark_object (arg=54030674) at alloc.c:5572
#8  0x010496e0 in mark_vectorlike (ptr=0x2f88000) at alloc.c:5368
#9  0x01049f48 in mark_object (arg=49840133) at alloc.c:5560
#10 0x0104892f in Fgarbage_collect () at alloc.c:5083
#11 0x0103c0cd in Ffuncall (nargs=2, args=0x88f640) at eval.c:2958
#12 0x011ef458 in Fbyte_code (bytestr=20502681, vector=20503613,
maxdepth=28) at bytecode.c:680
#13 0x0103d67c in funcall_lambda (fun=20502661, nargs=0,
arg_vector=0x88f904) at eval.c:3211
#14 0x0103ce9c in Ffuncall (nargs=1, args=0x88f900) at eval.c:3070
#15 0x011ef458 in Fbyte_code (bytestr=20498769, vector=20498989,
maxdepth=24) at bytecode.c:680
#16 0x0103d67c in funcall_lambda (fun=20498749, nargs=0,
arg_vector=0x88fb20) at eval.c:3211
#17 0x0103d0c3 in apply_lambda (fun=20498749, args=49838082,
eval_flag=1) at eval.c:3135
#18 0x0103aff0 in Feval (form=50108990) at eval.c:2388
#19 0x01006ee8 in top_level_2 () at keyboard.c:1365
#20 0x010389aa in internal_condition_case (bfun=0x1006ed5
<top_level_2>, handlers=49894618, hfun=0x10069e5 <cmd_error>) at
eval.c:1490
#21 0x01006f1f in top_level_1 () at keyboard.c:1373
#22 0x0103842c in internal_catch (tag=49893810, func=0x1006eea
<top_level_1>, arg=49838082) at eval.c:1226
#23 0x01006e58 in command_loop () at keyboard.c:1328
#24 0x010060f0 in recursive_edit_1 () at keyboard.c:950
#25 0x0100660b in Frecursive_edit () at keyboard.c:1012
#26 0x01002a95 in main (argc=3, argv=0x992bd0) at emacs.c:1784

Lisp Backtrace:
"command-line" (0x88f904)
"normal-top-level" (0x88fb20)
(gdb) frame 6
#6  0x01049f0a in mark_object (arg=54074885) at alloc.c:5558
5558            mark_char_table (XVECTOR (obj));
(gdb) p obj
$1 = 54074885
(gdb) xtype
Lisp_Vectorlike
PVEC_CHAR_TABLE
(gdb) xchartable
$2 = (struct Lisp_Char_Table *) 0x3391e00
Purpose: "nil"  0 extra slots
(gdb) up
#7  0x01049fa7 in mark_object (arg=54030674) at alloc.c:5572
5572            mark_object (ptr->value);
(gdb) p ptr
$3 = (struct Lisp_Symbol *) 0x3387150
(gdb) p ptr->value
$4 = 54074885
(gdb) xtype
Lisp_Vectorlike
PVEC_CHAR_TABLE
(gdb) xchartable
$5 = (struct Lisp_Char_Table *) 0x3391e00
Purpose: "nil"  0 extra slots
(gdb) up
#8  0x010496e0 in mark_vectorlike (ptr=0x2f88000) at alloc.c:5368
5368        mark_object (ptr->contents[i]);
(gdb) p ptr
$6 = (struct Lisp_Vector *) 0x2f88000
(gdb) p ptr->contents[i]
$7 = 54030674
(gdb) xtype
Lisp_Symbol
(gdb) xsymbol
$8 = (struct Lisp_Symbol *) 0x3387150
"fill-nospace-between-words-table"