_rpm crashes zsh

_rpm crashes zsh

[Kevin Sullivan]

I was very happy when I saw the _rpm completion widget show up in the
recent distributions. However, I am having a problem with it. One of
the ways that I use rpm is to get information about a specific rpm I
have in the current directory with:

rpm -qip <rpm name> 

But instead of looking for local packages it simply crashes. I have
included a gdb traceback of the problem. 

(kevins@kevins)(zsh:3)% gdb ./zsh
GNU gdb 4.18
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-mandrake-linux"...
(gdb) r -l
Starting program: /usr/local/src/zsh-3.1.6-pws-6/Src/./zsh -l
(kevins@kevins)(zsh:1)% rpm -qip
Program received signal SIGSEGV, Segmentation fault.
0x400bb9fc in chunk_alloc () from /lib/libc.so.6
(gdb) bt
#0  0x400bb9fc in chunk_alloc () from /lib/libc.so.6
#1  0x401555e0 in __DTOR_END__ () from /lib/libc.so.6
Cannot access memory at address 0x28.
(gdb) 

I am using Mandrake 6.0 Linux and a straight non-patched version of
zsh-3.1.6-pws-6. If there is any more information I can provide let
me know. 

  -Kevin Sullivan

Re: _rpm crashes zsh

[Sven Wischnowsky]

Kevin Sullivan wrote:

> I was very happy when I saw the _rpm completion widget show up in the
> recent distributions. However, I am having a problem with it. One of
> the ways that I use rpm is to get information about a specific rpm I
> have in the current directory with:
> 
> rpm -qip <rpm name> 
> 
> But instead of looking for local packages it simply crashes. I have
> included a gdb traceback of the problem. 
>
> ...
> 
> I am using Mandrake 6.0 Linux and a straight non-patched version of
> zsh-3.1.6-pws-6. If there is any more information I can provide let
> me know. 

Either I accidentally deleted a mail or there wasn't a reply to
this...

I tried but couldn't reproduce this with my pws-6 plus the 40+ patches 
that appeared in the last weeks. Maybe this is fixed by Bart's 8151?
(At least it looks like a memory problem...)

Bye
 Sven


--
Sven Wischnowsky                         wischnow@informatik.hu-berlin.de

Re: _rpm crashes zsh

[Kevin Sullivan]

Sven Wischnowsky writes:
> 
> Kevin Sullivan wrote:
> 
> > I was very happy when I saw the _rpm completion widget show up in the
> > recent distributions. However, I am having a problem with it. One of
> > the ways that I use rpm is to get information about a specific rpm I
> > have in the current directory with:
> > 
> > rpm -qip <rpm name> 
> > 
> > But instead of looking for local packages it simply crashes. I have
> > included a gdb traceback of the problem. 
> >
> > ...
> > 
> > I am using Mandrake 6.0 Linux and a straight non-patched version of
> > zsh-3.1.6-pws-6. If there is any more information I can provide let
> > me know. 
> 
> Either I accidentally deleted a mail or there wasn't a reply to
> this...
> 
> I tried but couldn't reproduce this with my pws-6 plus the 40+ patches 
> that appeared in the last weeks. Maybe this is fixed by Bart's 8151?
> (At least it looks like a memory problem...)
> 

Having not gotten an answer to the query I set off to figure it out
myself. I have a plain pws-6 version. Perhaps I should try Bart's 8151 
but in any event let me tell you what I found out. 

During the config process I enabled: --enable-zsh-mem
--enable-zsh-secure-free --enable-zsh-mem-warning --enable-zsh-debug
and --enable-zsh-mem-debug. 

When I fired up zsh and attempted:

my_prompt_here> rpm -q My<TAB> 

I got this error/warning message: 'BUG: attempt to free already free
storage'

So I fired up gdb put a break at mem.c:977 and mem.c:1054 but for some 
reason I was unable to get it to repeat under gdb.. Well I ran out of
time and was happy with simply enabling --enable-zsh-mem and
--enable-zsh-secure-free. I wanted to get a stack trace when I got 
to the DPUTS warning message, but... 

I believe the error message I was seeing was coming from 977 but I
have not verified this. 

Thanks, in any event I will try the 8151 patch... 

-Kevin Sullavin

Re: _rpm crashes zsh

[Chmouel Boudjnah]

Sven Wischnowsky <wischnow@informatik.hu-berlin.de> writes:

> Kevin Sullivan wrote:
> 
> > I was very happy when I saw the _rpm completion widget show up in the
> > recent distributions. However, I am having a problem with it. One of
> > the ways that I use rpm is to get information about a specific rpm I
> > have in the current directory with:
> > 
> > rpm -qip <rpm name> 
> > 
> > But instead of looking for local packages it simply crashes. I have
> > included a gdb traceback of the problem. 
> > I am using Mandrake 6.0 Linux and a straight non-patched version of
> > zsh-3.1.6-pws-6. If there is any more information I can provide let
> > me know. 

No problem here :

(chmou@vador)[~]-% print $ZSH_VERSION 
3.1.6-pws-6
(chmou@vador)[~]-%

-- 
MandrakeSoft          http://www.mandrakesoft.com/
			         	 --Chmouel