[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel
From: |
Nix |
Subject: |
bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel |
Date: |
Mon, 30 Jan 2012 19:11:55 +0000 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.92 (gnu/linux) |
On 30 Jan 2012, Eli Zaretskii spake thusly:
> From: Nix <nix@esperi.org.uk>
>> > It would be interesting to see it->current, it->position, it->sp, and
>> > it->string in frames #6 and #8.
>>
>> Frame 6:
>>
>> (gdb) print it->current
>> $3 = {
>> pos = {
>> charpos = 1430,
>> bytepos = 1394
>> },
>> overlay_string_index = -1,
>> string_pos = {
>> charpos = -1,
>> bytepos = -1
>> },
>> dpvec_index = -1
>> }
>> (gdb) print it->position
>> $4 = {
>> charpos = 1430,
>> bytepos = 1394
>> }
>
> If bytepos is smaller than charpos, it generally means trouble...
I thought maybe the gap accounted for it -- but this is already
gap-compensated, isn't it? So we have characters of size <1 byte there.
(I sort of doubt that.)
>> (gdb) print it->sp
>> $5 = 0
>> (gdb) print it->string
>> $6 = 12065314
>
> What does "xtype" say about this string? If it says Lisp_String, what
> does "xstring" say?
(gdb) xtype
Lisp_Symbol
(gdb) xstring
$2 = (struct Lisp_String *) 0xb81a20
There is no member named data.
Not very useful.
(gdb) print *((struct Lisp_String *) 0xb81a20)
$9 = {
intervals = 0x98,
u = {
imm = {
gcmarkbit = 1,
immbit = 0,
size = -40,
size_byte = -37,
data =
"\204\000\000\000\000\000\"\032\270\000\000\000\000\000\362\031\270\000\000\000\000"
},
dat = {
unused = 1,
size = <error reading variable>
}
}
Even less useful.
I'll see if I can reproduce this in an unoptimized build...
--
NULL && (void)
- bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel, Nix, 2012/01/26
- bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel, Eli Zaretskii, 2012/01/27
- bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel, Nix, 2012/01/30
- bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel, Eli Zaretskii, 2012/01/30
- bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel,
Nix <=
- bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel, Andreas Schwab, 2012/01/30
- bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel, Eli Zaretskii, 2012/01/30
- bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel, Nix, 2012/01/30
- bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel, Eli Zaretskii, 2012/01/30
- bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel, Nix, 2012/01/31
- bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel, Eli Zaretskii, 2012/01/31
- bug#10617: 24.0.92; Bidi crash reading a message from emacs-devel, Nix, 2012/01/31