* zsh bug
@ 2007-11-05 20:30 Drew Middlesworth
2007-11-06 10:13 ` Peter Stephenson
0 siblings, 1 reply; 5+ messages in thread
From: Drew Middlesworth @ 2007-11-05 20:30 UTC (permalink / raw)
To: zsh-workers
I've been able to reproduce this bug on Ubuntu Dapper (zsh
4.2.5-23ubuntu3), Ubuntu Edgy (zsh 4.3.2-13ubuntu1), Ubuntu Gusty (zsh
4.3.4-14ubuntu2),CentOS5 (zsh-4.2.6-1) and also in the latest
development (zsh 4.3.4) on multiple operating systems. This issue
doesn't seem to exist in zsh version 4.1.1 that we also tested. The
steps to reproduce this are below.
Could you also reply CC my address too? Thanks,
Drew
Steps to reproduce (on dapper, with vi bindings):
- enter some commands (echo foo ...)
- hit esc to go into command mode
- do a backward search: hit [the ?/ key] to get a '?' char indicating
a backward search. search for something you typed a few lines
back.
- the search is successful, you're now a few lines back in the history
- repeat:
- shift-[the ?/ key] to get a '/' char indicating a forward-search
(yes, normally you'd press [?/] without shift to get this char, but
they invert it, since normally you want to search backwards
through history)
- backspace: don't search
- scroll up or down in the history
After a few tries, pressing shift-[?/], when a '/' char should appear will
crash zsh:
Here, I searched backwards for 'echo c', then it crashed (after a few
tries) when I'd scrolled back to the 'echo a' line and tried a
forward-search:
epizzi@epizzi:~$ zsh
[epizzi:~]$ echo a
a
[epizzi:~]$ echo b
b
[epizzi:~]$ echo c
c
[epizzi:~]$ echo d
d
[epizzi:~]$ echo e
e
[epizzi:~]$ echo *** glibc detected *** double free or corruption
(fasttop): 0x080dfea8 ***
Aborted
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: zsh bug
2007-11-05 20:30 zsh bug Drew Middlesworth
@ 2007-11-06 10:13 ` Peter Stephenson
0 siblings, 0 replies; 5+ messages in thread
From: Peter Stephenson @ 2007-11-06 10:13 UTC (permalink / raw)
To: Drew Middlesworth, zsh-workers
"Drew Middlesworth" wrote:
> I've been able to reproduce this bug on Ubuntu Dapper (zsh
> 4.2.5-23ubuntu3), Ubuntu Edgy (zsh 4.3.2-13ubuntu1), Ubuntu Gusty (zsh
> 4.3.4-14ubuntu2),CentOS5 (zsh-4.2.6-1) and also in the latest
> development (zsh 4.3.4) on multiple operating systems.
You might find it was fixed by the following patch
http://www.zsh.org/mla/workers/2007/msg00735.html
2007-09-13 Clint Adams <clint@zsh.org>
* 23813: Src/Zle/zle_hist.c: set vipenultsrchstr to NULL
after freeing it to avoid vi-mode history search segfaults.
--
Peter Stephenson <pws@csr.com> Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK Tel: +44 (0)1223 692070
^ permalink raw reply [flat|nested] 5+ messages in thread
[parent not found: <qrr3e0q76lb.fsf@elwha.cs.washington.edu>]
* zsh bug
@ 1999-05-16 21:55 Arnon Kanfi
0 siblings, 0 replies; 5+ messages in thread
From: Arnon Kanfi @ 1999-05-16 21:55 UTC (permalink / raw)
To: zsh-workers
Hi,
I have discovered a bug in zsh 3.1.4 when used on SunOs. when doing an "su"
zsh will not read any of the global RC files. After tracking the problem I
have found out that su on SunOs 4.1.4 sets argv[0] to "-su" which causes zsh
to do "sh" emulation and not read the RC files. Enclosed is a small patch
that fixes the problem on SunOs (I use the "SHELL" env variable which is set
correctly to /usr/bin/zsh)
In addition to that I ran into another problem on AIX 4.3 with EGCS. Were
the
generated executable could not be loaded because of alignment problems, See
below:
0509-036 Cannot load program ./zsh because of the following errors:
0509-029 Alignment of text does not match required alignment.
0509-025 The ./zsh file is not executable or not in correct XCOFF
format.
0509-026 System error: Cannot run a file that does not have a valid
form
Adding -H512 to the linker flags in the gcc specs file fixed the above
problem.
Hope that helps.
Arnon
diff -ubw /usr2/misc/tools/zsh-3.1.4/Src/main.c\~
/usr2/misc/tools/zsh-3.1.4/Src/main.c
--- /usr2/misc/tools/zsh-3.1.4/Src/main.c~ Wed Apr 29 17:42:50 1998
+++ /usr2/misc/tools/zsh-3.1.4/Src/main.c Sun May 16 17:35:02 1999
@@ -43,6 +43,9 @@
init_hackzero(argv, environ);
+ if (strcmp(argv[0], "-su") == 0)
+ argv[0] = getenv("SHELL");
+
for (t = argv; *t; *t = metafy(*t, -1, META_ALLOC), t++);
if (!(zsh_name = strrchr(argv[0], '/')))
Diff finished at Sun May 16 17:38:39
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2007-11-06 10:14 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-11-05 20:30 zsh bug Drew Middlesworth
2007-11-06 10:13 ` Peter Stephenson
[not found] <qrr3e0q76lb.fsf@elwha.cs.washington.edu>
[not found] ` <gjb@cs.washington.edu>
1999-05-24 1:29 ` Glenn Trigg
1999-05-24 1:48 ` Geoff Wing
-- strict thread matches above, loose matches on Subject: below --
1999-05-16 21:55 Arnon Kanfi
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