From: "Jörg Sommer" <joerg@alea.gnuu.de>
To: zsh-workers@sunsite.dk
Subject: Re: Segmentation fault while searching backward
Date: Wed, 19 Dec 2007 22:32:10 +0000 (UTC) [thread overview]
Message-ID: <slrnfmj6v9.23b.joerg@alea.gnuu.de> (raw)
In-Reply-To: <20071219095543.4c9344ab@news01>
Hallo Peter,
Peter Stephenson <pws@csr.com> wrote:
> On Wed, 19 Dec 2007 00:59:34 +0000 (UTC)
> Jörg Sommer <joerg@alea.gnuu.de> wrote:
>> when I search backward through the history with ^R I get a segmentation
>> fault:
>
> Unfortunately we're going to need more detail than that to reproduce it.
> The crash is because of a large value passed down to zwcwrite(). We're
> likely to need to know what line was on screen before (the contents of
> the array pointed to by ol in stack level 1 and its length ollen)
(gdb) up
#1 0x0fbd0d68 in refreshline (ln=0) at ../../../Src/Zle/zle_refresh.c:1124
1124 in ../../../Src/Zle/zle_refresh.c
(gdb) print ol
$1 = (REFRESH_STRING) 0x101c31a0
(gdb) print *ol
$2 = 0
(gdb) print ollen
$3 = 6
(gdb) x/16cb ol
0x101c31a0: 0 '\0' 0 '\0' 0 '\0' 0 '\0' 0 '\0' 0 '\0' 0 '\0' 108 'l'
0x101c31a8: 0 '\0' 0 '\0' 0 '\0' 101 'e' 0 '\0' 0 '\0' 0 '\0' 110 'n'
> and what it's trying to put on screen (the contents of the array nl and
> its length nllen).
(gdb) print nl
$6 = (REFRESH_STRING) 0x101c2784
(gdb) print *nl
$7 = 62
(gdb) print nllen
$8 = 16
(gdb) x/24cb nl
0x101c2784: 0 '\0' 0 '\0' 0 '\0' 62 '>' 0 '\0' 0 '\0' 0 '\0' 46 '.'
0x101c278c: 0 '\0' 0 '\0' 0 '\0' 46 '.' 0 '\0' 0 '\0' 0 '\0' 46 '.'
0x101c2794: 0 '\0' 0 '\0' 0 '\0' 46 '.' 0 '\0' 0 '\0' 0 '\0' 32 ' '
> Note the arrays will be wide character strings. If it's reproducible
> with these two lines we have a chance of fixing it.
I can send you the core file (the executables and debugging symbols are
from Debian) and the broken history file. It's reproducible.
Bye, Jörg.
--
Stasi 2.0 – http://www.dataloo.de/stasi-20-525.html
next prev parent reply other threads:[~2007-12-19 23:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-19 0:59 Jörg Sommer
2007-12-19 9:55 ` Peter Stephenson
2007-12-19 22:32 ` Jörg Sommer [this message]
2007-12-20 10:04 ` Peter Stephenson
2008-01-08 15:02 ` Peter Stephenson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=slrnfmj6v9.23b.joerg@alea.gnuu.de \
--to=joerg@alea.gnuu.de \
--cc=zsh-workers@sunsite.dk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/zsh/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).