--- Begin Message ---
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Subject: |
23.0.60; `concat' with longer strings aborts Emacs ungracefully |
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Date: |
Mon, 5 Jan 2009 02:23:20 +0100 (CET) |
On OSX and Ubuntu jaunty machines with 1 GB RAM, doing:
$ emacs -Q --eval "(let ((v \"x\")) (while t (setq v (concat v v))))"
aborts Emacs with the following backtrace:
(gdb) bt
#0 0x9010d3db in abort ()
#1 0x0013a561 in make_uninit_multibyte_string (nchars=-536870912,
nbytes=-536870912) at alloc.c:2503
#2 0x0013a590 in make_uninit_string (length=-536870912) at alloc.c:2486
#3 0x00159210 in concat (nargs=2, args=0xbfffec90, target_type=Lisp_String,
last_special=0) at fns.c:619
#4 0x00152c10 in Feval (form=41853805) at eval.c:2348
#5 0x00152cbc in Fsetq (args=41853797) at eval.c:551
#6 0x00152b58 in Feval (form=41853789) at eval.c:2322
#7 0x00152e34 in Fprogn (args=41853837) at eval.c:449
#8 0x00155199 in Fwhile (args=41853781) at eval.c:1111
#9 0x00152b58 in Feval (form=41853773) at eval.c:2322
#10 0x00152e34 in Fprogn (args=41853845) at eval.c:449
#11 0x001552a5 in Flet (args=41853765) at eval.c:1089
#12 0x00152b58 in Feval (form=41853733) at eval.c:2322
#13 0x00153621 in Ffuncall (nargs=2, args=0xbffff0b0) at eval.c:3050
#14 0x0018cb8b in Fbyte_code (bytestr=2175051, vector=2175068, maxdepth=10)
at bytecode.c:678
#15 0x00152f2b in funcall_lambda (fun=2175020, nargs=1,
arg_vector=0xbffff254) at eval.c:3231
#16 0x0015340e in Ffuncall (nargs=2, args=0xbffff250) at eval.c:3101
#17 0x0018cb8b in Fbyte_code (bytestr=2161403, vector=2161420, maxdepth=7)
at bytecode.c:678
#18 0x00152f2b in funcall_lambda (fun=2161380, nargs=0,
arg_vector=0xbffff3e4) at eval.c:3231
#19 0x0015340e in Ffuncall (nargs=1, args=0xbffff3e0) at eval.c:3101
#20 0x0018cb8b in Fbyte_code (bytestr=2158059, vector=2158076, maxdepth=6)
at bytecode.c:678
#21 0x00152f2b in funcall_lambda (fun=2158036, nargs=0,
arg_vector=0xbffff500) at eval.c:3231
#22 0x00153196 in apply_lambda (fun=2158036, args=58721289, eval_flag=1) at
eval.c:3155
#23 0x001528e0 in Feval (form=35544669) at eval.c:2435
#24 0x000e3a9c in top_level_2 () at keyboard.c:1358
#25 0x00151798 in internal_condition_case (bfun=0xe3a80 <top_level_2>,
handlers=58760953, hfun=0xea6ef <cmd_error>) at eval.c:1511
#26 0x000e3ae4 in top_level_1 () at keyboard.c:1366
#27 0x001513ea in internal_catch (tag=58757025, func=0xe3aa2 <top_level_1>,
arg=58721289) at eval.c:1247
#28 0x000e37ff in command_loop () at keyboard.c:1321
#29 0x000e38cf in recursive_edit_1 () at keyboard.c:942
#30 0x000e3a17 in Frecursive_edit () at keyboard.c:1004
#31 0x000e282f in main (argc=4, argv=0xbffff97c) at emacs.c:1786
Lisp Backtrace:
"concat" (0xbfffec90)
"setq" (0xbfffede8)
"while" (0xbfffeed8)
"let" (0xbffff008)
"eval" (0xbffff0b4)
"command-line-1" (0xbffff254)
"command-line" (0xbffff3e4)
"normal-top-level" (0xbffff500)
To me, throwing an error seems to be much preferable in this case.
In GNU Emacs 23.0.60.1 (i386-apple-darwin8.11.1, GTK+ Version 2.12.9)
of 2008-12-25 on mt-computer.local
Windowing system distributor `The XFree86 Project, Inc', version 11.0.40400000
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: nil
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: en_GB.UTF-8
value of $XMODIFIERS: nil
locale-coding-system: nil
default-enable-multibyte-characters: t
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--- Begin Message ---
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Subject: |
Re: 23.0.60; `concat' with longer strings aborts Emacs ungracefully |
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Date: |
Tue, 27 Jan 2009 16:17:52 -0500 |
> On OSX and Ubuntu jaunty machines with 1 GB RAM, doing:
>
> $ emacs -Q --eval "(let ((v \"x\")) (while t (setq v (concat v
> v))))"
>
> aborts Emacs
I've checked in a fix. Thanks.
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