Bug #31675 “Problem when making many users with “users admin. to...” : Bugs : gnome-system-tools package : Ubuntu

Revision history for this message

Phil Bull (philbull) wrote on 2006-02-16:

#1

Thanks for the report.

Could you provide some more information about the problem, please? How are you trying to create many users at one time? One by one, and the application cannot add any more after 5 or 6 have been created? Or in another way?

What happens when adding users fails? Does the application crash, freeze, or just not add any more users?

Thanks again!

Changed in yelp:
status:	Unconfirmed → Needs Info
Changed in gnome-system-tools:
assignee:	nobody → desktop-bugs

Revision history for this message

Rafael Ávila Coya (ravila-edu) wrote on 2006-02-18: Re: [Bug 31675] Problem when making many users with "users admin. tool" at one time

#2

Download full text (3.4 KiB)

I tell you:

I am giving lessons of UNIX/Linux basics, using Ubuntu 5.10 Breezy (preview release in most of the computers) to 14 students, althougt at that time there were only 7 in the classroom.
We were making practice of creating users and groups, with the GUI 'user administration tool', and commands like adduser, useradd, usermod, addgroup, and so on. I told them that using the GUI tool could be the most easy and advisable way to create users, and then usermod and other commands to assign extra groups to each user and things like that. I suggested them to create accounts in there own computers for the rest of the users in the classroom (15, including me). As you know, with the GUI tool, you can edit 2 or more users, but they are not created until you click a "final" OK to the application. One student and me were clicking OK each 4 or 5 users (or so), and didn't have any problem. But it seems that the rest of them (5 students) introduced all the users (15) one after one, without clicking the "final OK" to the whole application. What happened is that, when they finally clicked OK, the app. start "working" but didn't finish. It didn't crashed, nor freezed. It got in
the state of "working", but never finishing the task, you understand?
I am now at home, and reproduced the situation in my laptop (I didn't bring it to the school, so it is a new machine!). I started the GUI and tried to create 13 new users (login names 'uno', 'dos', 'tres', 'cuatro', and so on (-< they are the numbers in spanish :-) )). I didn't put GECOS to anyone, and password was the login name of each user, just to make it the easy way. I assigned them, in the 'advanced' section, the home directory '/home/taller2/$user' , because I wanted to teach them that it's good costume to put users of different departments in different home subdirectories ("taller2" is the name of the classroom I teach). I left the rest of the options the default ones. Result? The same: It starts "working", but never finishes (when at lesson, I told them to swich to another desktop, but at the end of it, 1 and a half hours after, it was still "working"...). I woud say that the correct word for this is that it was freezed, but I am not sure which term is the correct
for that state.

I think I didn't forget any important thing. My advice is that you try to reproduce the same situation, and see it youself. I'm affraid I don't have enough knowledge to help. I don't even know where the 'user administration tool' package's source is!

Cheers and deep thanks to all of the community. You make this world a bit nicer and worthwhile.
Anything I can't help you, don't hesitate to contact me.

Rafael Ávila Coya.

----- Mensaxe orixinal -----
De: Phil Bull <email address hidden>
Data: Xoves, Febreiro 16, 2006 7:22 pm
Asunto: [Bug 31675] Problem when making many users with "users admin. tool" at one time

> Public bug report changed:
> https://launchpad.net/malone/bugs/31675
>
> Task: ubuntu yelp
> Sourcepackagename: yelp => gnome-system-tools
> Binarypackagename: yelp => None
> Status: Unconfirmed => Needs Info
>
> Comment:
> Thanks for the report.
>
> Could you provide some more information about the prob...

I tell you:

I am giving lessons of UNIX/Linux basics, using Ubuntu 5.10 Breezy (preview release in most of the computers) to 14 students, althougt at that time there were only 7 in the classroom.
We were making practice of creating users and groups, with the GUI 'user administration tool', and commands like adduser, useradd, usermod, addgroup, and so on. I told them that using the GUI tool could be the most easy and advisable way to create users, and then usermod and other commands to assign extra groups to each user and things like that. I suggested them to create accounts in there own computers for the rest of the users in the classroom (15, including me). As you know, with the GUI tool, you can edit 2 or more users, but they are not created until you click a "final" OK to the application. One student and me were clicking OK each 4 or 5 users (or so), and didn't have any problem. But it seems that the rest of them (5 students) introduced all the users (15) one after one, without clicking the "final OK" to the whole application. What happened is that, when they finally clicked OK, the app. start "working" but didn't finish. It didn't crashed, nor freezed. It got in 
the state of "working", but never finishing the task, you understand?
I am now at home, and reproduced the situation in my laptop (I didn't bring it to the school, so it is a new machine!). I started the GUI and tried to create 13 new users (login names 'uno', 'dos', 'tres', 'cuatro', and so on (-< they are the numbers in spanish :-) )). I didn't put GECOS to anyone, and password was the login name of each user, just to make it the easy way. I assigned them, in the 'advanced' section, the home directory '/home/taller2/$user' , because I wanted to teach them that it's good costume to put users of different departments in different home subdirectories ("taller2" is the name of the classroom I teach). I left the rest of the options the default ones. Result? The same: It starts "working", but never finishes (when at lesson, I told them to swich to another desktop, but at the end of it, 1 and a half hours after, it was still "working"...). I woud say that the correct word for this is that it was freezed, but I am not sure which term is the correct 
for that state.

I think I didn't forget any important thing. My advice is that you try to reproduce the same situation, and see it youself. I'm affraid I don't have enough knowledge to help. I don't even know where the 'user administration tool' package's source is!

Cheers and deep thanks to all of the community. You make this world a bit nicer and worthwhile.
Anything I can't help you, don't hesitate to contact me.

Rafael Ávila Coya.

----- Mensaxe orixinal -----
De: Phil Bull <philbull@gmail.com>
Data: Xoves, Febreiro 16, 2006 7:22 pm
Asunto: [Bug 31675] Problem when making many users with "users admin. tool"	at one time

> Public bug report changed:
> https://launchpad.net/malone/bugs/31675
> 
> Task: ubuntu yelp
> Sourcepackagename: yelp => gnome-system-tools
> Binarypackagename: yelp => None
>         Status: Unconfirmed => Needs Info
> 
> Comment:
> Thanks for the report.
> 
> Could you provide some more information about the problem, please? 
> How are you trying to create many users at one time? One by one, 
> and the application cannot add any more after 5 or 6 have been 
> created? Or in another way?
> 
> What happens when adding users fails? Does the application crash, 
> freeze, or just not add any more users?
> 
> Thanks again!
>

Revision history for this message

Rafael Ávila Coya (ravila-edu) wrote on 2006-02-18:

#3

I tell you:

I am giving lessons of UNIX/Linux basics, using Ubuntu 5.10 Breezy (preview release in most of the computers) to 14 students, althougt at that time there were only 7 in the classroom.
We were making practice of creating users and groups, with the GUI 'user administration tool', and commands like adduser, useradd, usermod, addgroup, and so on. I told them that using the GUI tool could be the most easy and advisable way to create users, and then usermod and other commands to assign extra groups to each user and things like that. I suggested them to create accounts in there own computers for the rest of the users in the classroom (15, including me). As you know, with the GUI tool, you can edit 2 or more users, but they are not created until you click a "final" OK to the application. One student and me were clicking OK each 4 or 5 users (or so), and didn't have any problem. But it seems that the rest of them (5 students) introduced all the users (15) one after one, without clicking the "final OK" to the whole application. What happened is that, when they finally clicked OK, the app. start "working" but didn't finish. It didn't crashed, nor freezed. It got in the state of "working", but never finishing the task, you understand?
I am now at home, and reproduced the situation in my laptop (I didn't bring it to the school, so it is a new machine! - Ubuntu Breezy (not preview, but the "real" one)). I started the GUI and tried to create 13 new users (login names 'uno', 'dos', 'tres', 'cuatro', and so on (-< they are the numbers in spanish :-) )). I didn't put GECOS to anyone, and password was the login name of each user, just to make it the easy way. I assigned them, in the 'advanced' section, the home directory '/home/taller2/$user' , because I wanted to teach them that it's good costume to put users of different departments in different home subdirectories ("taller2" is the name of the classroom I teach). I left the rest of the options the default ones. Result? The same: It starts "working", but never finishes (when at lesson, I told them to swich to another desktop, but at the end of it, 1 and a half hours after, it was still "working"...). I woud say that the correct word for this is that it was freezed, but I am not sure which term is the correct for that state.

I think I didn't forget any important thing. My advice is that you try to reproduce the same situation, and see it youself. I'm affraid I don't have enough knowledge to help. I don't even know where the 'user administration tool' package's source is!

Cheers and deep thanks to all of the community. You make this world a bit nicer and worthwhile.
Anything I can't help you, don't hesitate to contact me.

Rafael Ávila Coya.

I tell you:

I am giving lessons of UNIX/Linux basics, using Ubuntu 5.10 Breezy (preview release in most of the computers) to 14 students, althougt at that time there were only 7 in the classroom.
We were making practice of creating users and groups, with the GUI 'user administration tool', and commands like adduser, useradd, usermod, addgroup, and so on. I told them that using the GUI tool could be the most easy and advisable way to create users, and then usermod and other commands to assign extra groups to each user and things like that. I suggested them to create accounts in there own computers for the rest of the users in the classroom (15, including me). As you know, with the GUI tool, you can edit 2 or more users, but they are not created until you click a "final" OK to the application. One student and me were clicking OK each 4 or 5 users (or so), and didn't have any problem. But it seems that the rest of them (5 students) introduced all the users (15) one after one, without clicking the "final OK" to the whole application. What happened is that, when they finally clicked OK, the app. start "working" but didn't finish. It didn't crashed, nor freezed. It got in the state of "working", but never finishing the task, you understand?
I am now at home, and reproduced the situation in my laptop (I didn't bring it to the school, so it is a new machine! - Ubuntu Breezy (not preview, but the "real" one)). I started the GUI and tried to create 13 new users (login names 'uno', 'dos', 'tres', 'cuatro', and so on (-< they are the numbers in spanish :-) )). I didn't put GECOS to anyone, and password was the login name of each user, just to make it the easy way. I assigned them, in the 'advanced' section, the home directory '/home/taller2/$user' , because I wanted to teach them that it's good costume to put users of different departments in different home subdirectories ("taller2" is the name of the classroom I teach). I left the rest of the options the default ones. Result? The same: It starts "working", but never finishes (when at lesson, I told them to swich to another desktop, but at the end of it, 1 and a half hours after, it was still "working"...). I woud say that the correct word for this is that it was freezed, but I am not sure which term is the correct for that state.

I think I didn't forget any important thing. My advice is that you try to reproduce the same situation, and see it youself. I'm affraid I don't have enough knowledge to help. I don't even know where the 'user administration tool' package's source is!

Cheers and deep thanks to all of the community. You make this world a bit nicer and worthwhile.
Anything I can't help you, don't hesitate to contact me.

Rafael Ávila Coya.

Revision history for this message

Phil Bull (philbull) wrote on 2006-02-18:

#4

Thanks for the explanation. I tried to reproduce this with ten users (named 'one' to 'ten'), but the users were created normally, with no freeze. Which version of the gnome-system-tools package do you have installed?

Could you run the application in a terminal, recreate the freeze, and see if any useful error text is printed to the terminal please? The command is:

sudo users-admin

Also, in another terminal, try the following command after the freeze has happened:

cat /etc/passwd | grep username

(where 'username' is replaced with the name of a user, e.g cuatro)

If the user has been added, it should appear in the output of that command.

Thanks!

Revision history for this message

Rafael Ávila Coya (ravila-edu) wrote on 2006-02-18:

#5

Hi again, Phil!

It's a pity that you didn't go on introducing users. I reproduced what you did (10 users from 'one' to 'ten', home directory '/home/taller2/$user') and it doesn't freeze. I checked also /etc/passwd and /etc/shadow, and everything alright. [The reason that I told you that when creating over 5 or 6 users in one time it didn't work, was that me and other student didn't introduce more than 5 or 6 users at a time (and no problem), and the rest created the 14 in one time (and freezed). I should say that in one number between 6 and 15, the system couldn't create so many users. I'm sorry not to have explained it correctly in the first time].
But after the successful creation of 10 users, I did the same again, but now with 15 users (this time in greek :-) 'ena', 'dio' up to 'dekapente', and home directory '/home/taller3/$user'), and it freezed! In fact, it doesn't freeze; it's like if it gets trapped in a never-ending “while (1)” loop, because you can close the window nicely. Finally, I did it again with other 15 users ('un', 'deux', 'trois'..., home dir: '/home/room/$user'), but starting from a gnome-terminal ($ sudo users-admin ), and no message in the terminal (again “freezed”). This last fact proves that it must be in a kind of infinite loop, waiting for something. To be more explicit, you close the window with one click, but in the terminal it looks like it didn't notice, so you have to do in the terminal a CTRL-C.

In both cases (15 users to be created), no user is created, as I could check in /etc/passwd and /etc/shadow files.

For your information, my gnome-system-tools package version is 1.4.0-0ubuntu10, and users-admin version is 1.4.0

I recommend you to do it again with 15 (or more) users. Hope this info. is enough to give some light to this bug.

Cheers,

Rafael.

PD.: I have some screenshots of all processes, if you need them. If that's so, tell me and I'll send them to you.

Revision history for this message

Phil Bull (philbull) wrote on 2006-02-19:

#6

Well, I tried adding 15 users and I still couldn't reproduce the freeze. However, I got a nastier problem instead!

After adding all fifteen and clicking 'OK', the app seemed to be doing something for a few seconds, then quit (no crash report etc). So I took a look at /etc/passwd and none of the new users were listed. Directories had been created for them in /home though.

I then found out that I couldn't use sudo (root), because of some authentication error. On typing sudo <commandname>, it would prompt me for my password and then fail to execute the command, silently. I couldn't use slocate either because 'the slocate group does not exist'. With my root access gone, I had to reinstall Dapper off CD.

Tricky one!

Revision history for this message

Phil Bull (philbull) wrote on 2006-02-19:

#7

I've confirmed this, as I get problems too. Can anyone else reproduce this issue?

Also, I couldn't find an upstream bug.

Changed in gnome-system-tools:
status:	Needs Info → Confirmed

Revision history for this message

Rafael Ávila Coya (ravila-edu) wrote on 2006-02-20:

#8

I would also put the severity up to "major", because in my opinion, loosing your own password is a really big problem. I found upstream a similar bug (http://bugzilla.gnome.org/show_bug.cgi?id=315254) that affects g-s-t running on freeBSD, cataloged as MAJOR severity. In that bug, the users-admin tool hangs even if you create only one user. "It greys out and hangs indefinetly", as it happens to me.
[I didn't find the accurate english term before. Where I should say "it hangs" I was saying "it freezes", that is similar, but not the same].

Revision history for this message

Daniel Holbach (dholbach) wrote on 2006-02-20:

#9

We should try to find ways of reproducing both issues and have separate bug reports for those. Could you try to get a backtrace, when users-admin hangs?

gdb -p $(pidof users-admin)
...
thread apply all bt

and paste the output here?

Changed in gnome-system-tools:
status:	Confirmed → Needs Info

Revision history for this message

Phil Bull (philbull) wrote on 2006-02-20:

#10

I'm a bit reluctant to trash my system again. I'll get a Dapper install up and running in vmware when I can and grab a backtrace in that.

Revision history for this message

Rafael Ávila Coya (ravila-edu) wrote on 2006-02-20:

#11

Download full text (11.8 KiB)

Sorry, but I'm not expert in gdb.

I started users-admin and then, in a xterm, I did

sudo gdb -p 18641

The output was:

--------------------------------------------

GNU gdb 6.3-debian
Copyright 2004 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 "i486-linux-gnu".
Attaching to process 18641
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".

warning: could not load vsyscall page because no executable was specified

warning: try using the "file" command first
Reading symbols from /usr/bin/users-admin...(no debugging symbols found)...done.
Reading symbols from /usr/lib/libgnomeui-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnomeui-2.so.0
Reading symbols from /usr/lib/libbonoboui-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonoboui-2.so.0
Reading symbols from /usr/lib/libgnome-keyring.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnome-keyring.so.0
Reading symbols from /usr/lib/libgnomecanvas-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnomecanvas-2.so.0
Reading symbols from /usr/lib/libgnome-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnome-2.so.0
Reading symbols from /lib/libpopt.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib/libpopt.so.0
Reading symbols from /usr/lib/libart_lgpl_2.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libart_lgpl_2.so.2
Reading symbols from /usr/lib/libpangoft2-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpangoft2-1.0.so.0
Reading symbols from /usr/lib/libgnomevfs-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnomevfs-2.so.0
Reading symbols from /usr/lib/libbonobo-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonobo-2.so.0
Reading symbols from /usr/lib/libbonobo-activation.so.4...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonobo-activation.so.4
Reading symbols from /usr/lib/libglade-2.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglade-2.0.so.0
Reading symbols from /usr/lib/libgtk-x11-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgtk-x11-2.0.so.0
Reading symbols from /usr/lib/libxml2.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libxml2.so.2
Reading symbols from /usr/lib/libgdk-x11-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgdk-x11-2.0.so.0
Reading symbols from /usr/lib/libatk-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libatk-1.0.so.0
Reading symbols from /usr/lib/libgdk_pixbuf-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgdk_pixbuf-2.0.so.0
Reading symbols from /usr/lib/libpangocairo-1.0.so.0...(no ...

Sorry, but I'm not expert in gdb.

I started users-admin and then, in a xterm, I did

sudo gdb -p 18641

The output was:

--------------------------------------------

GNU gdb 6.3-debian
Copyright 2004 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 "i486-linux-gnu".
Attaching to process 18641
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".

warning: could not load vsyscall page because no executable was specified

warning: try using the "file" command first
Reading symbols from /usr/bin/users-admin...(no debugging symbols found)...done.
Reading symbols from /usr/lib/libgnomeui-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnomeui-2.so.0
Reading symbols from /usr/lib/libbonoboui-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonoboui-2.so.0
Reading symbols from /usr/lib/libgnome-keyring.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnome-keyring.so.0
Reading symbols from /usr/lib/libgnomecanvas-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnomecanvas-2.so.0
Reading symbols from /usr/lib/libgnome-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnome-2.so.0
Reading symbols from /lib/libpopt.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib/libpopt.so.0
Reading symbols from /usr/lib/libart_lgpl_2.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libart_lgpl_2.so.2
Reading symbols from /usr/lib/libpangoft2-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpangoft2-1.0.so.0
Reading symbols from /usr/lib/libgnomevfs-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnomevfs-2.so.0
Reading symbols from /usr/lib/libbonobo-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonobo-2.so.0
Reading symbols from /usr/lib/libbonobo-activation.so.4...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonobo-activation.so.4
Reading symbols from /usr/lib/libglade-2.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglade-2.0.so.0
Reading symbols from /usr/lib/libgtk-x11-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgtk-x11-2.0.so.0
Reading symbols from /usr/lib/libxml2.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libxml2.so.2
Reading symbols from /usr/lib/libgdk-x11-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgdk-x11-2.0.so.0
Reading symbols from /usr/lib/libatk-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libatk-1.0.so.0
Reading symbols from /usr/lib/libgdk_pixbuf-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgdk_pixbuf-2.0.so.0
Reading symbols from /usr/lib/libpangocairo-1.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpangocairo-1.0.so.0
Reading symbols from /usr/lib/libpango-1.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpango-1.0.so.0
Reading symbols from /usr/lib/libcairo.so.2...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libcairo.so.2
Reading symbols from /usr/lib/libgobject-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgobject-2.0.so.0
Reading symbols from /usr/lib/libgconf-2.so.4...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgconf-2.so.4
Reading symbols from /usr/lib/libORBit-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libORBit-2.so.0
Reading symbols from /usr/lib/libgmodule-2.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgmodule-2.0.so.0
Reading symbols from /usr/lib/libgthread-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgthread-2.0.so.0
Reading symbols from /usr/lib/libglib-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglib-2.0.so.0
Reading symbols from /lib/tls/i686/cmov/libcrypt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libcrypt.so.1
Reading symbols from /lib/tls/i686/cmov/libutil.so.1...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libutil.so.1
Reading symbols from /usr/lib/libSM.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libSM.so.6
Reading symbols from /usr/lib/libICE.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libICE.so.6
Reading symbols from /lib/tls/i686/cmov/libnsl.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libnsl.so.1
Reading symbols from /lib/tls/i686/cmov/libresolv.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libresolv.so.2
Reading symbols from /lib/tls/i686/cmov/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/librt.so.1
Reading symbols from /usr/lib/libXinerama.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXinerama.so.1
Reading symbols from /usr/lib/libXi.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXi.so.6
Reading symbols from /usr/lib/libXrandr.so.2...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXrandr.so.2
Reading symbols from /usr/lib/libXext.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXext.so.6
Reading symbols from /usr/lib/libXcursor.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXcursor.so.1
Reading symbols from /usr/lib/libXfixes.so.3...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXfixes.so.3
Reading symbols from /usr/lib/libXrender.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXrender.so.1
Reading symbols from /usr/lib/libX11.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libX11.so.6
Reading symbols from /usr/lib/libpng12.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpng12.so.0
Reading symbols from /usr/lib/libfontconfig.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libfontconfig.so.1
Reading symbols from /usr/lib/libz.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /lib/tls/i686/cmov/libm.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libm.so.6
Reading symbols from /lib/tls/i686/cmov/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libdl.so.2
Reading symbols from /lib/tls/i686/cmov/libpthread.so.0...(no debugging symbols found)...done.
[Thread debugging using libthread_db enabled]
[New Thread -1223260480 (LWP 18641)]
Loaded symbols for /lib/tls/i686/cmov/libpthread.so.0
Reading symbols from /lib/tls/i686/cmov/libc.so.6...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libc.so.6
Reading symbols from /usr/lib/libjpeg.so.62...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libjpeg.so.62
Reading symbols from /usr/lib/libesd.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libesd.so.0
Reading symbols from /usr/lib/libaudiofile.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libaudiofile.so.0
Reading symbols from /usr/lib/libfreetype.so.6...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libfreetype.so.6
Reading symbols from /usr/lib/libgnutls.so.11...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnutls.so.11
Reading symbols from /usr/lib/libORBitCosNaming-2.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libORBitCosNaming-2.so.0
Reading symbols from /usr/lib/libpangoxft-1.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpangoxft-1.0.so.0
Reading symbols from /usr/lib/libpangox-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpangox-1.0.so.0
Reading symbols from /lib/ld-linux.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /usr/lib/libXau.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXau.so.6
Reading symbols from /usr/lib/libXdmcp.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXdmcp.so.6
Reading symbols from /usr/lib/libexpat.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libexpat.so.1
Reading symbols from /usr/lib/libasound.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libasound.so.2
Reading symbols from /usr/lib/libtasn1.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libtasn1.so.2
Reading symbols from /usr/lib/libgcrypt.so.11...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgcrypt.so.11
Reading symbols from /usr/lib/libgpg-error.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgpg-error.so.0
Reading symbols from /usr/lib/libXft.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXft.so.2
Reading symbols from /lib/tls/i686/cmov/libnss_compat.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libnss_compat.so.2
Reading symbols from /lib/tls/i686/cmov/libnss_nis.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libnss_nis.so.2
Reading symbols from /lib/tls/i686/cmov/libnss_files.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libnss_files.so.2
Reading symbols from /usr/lib/X11/locale/common/xlcUTF8Load.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/X11/locale/common/xlcUTF8Load.so.2
Reading symbols from /usr/lib/gconv/ISO8859-1.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/gconv/ISO8859-1.so
Reading symbols from /usr/lib/gtk-2.0/2.4.0/engines/libclearlooks.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/gtk-2.0/2.4.0/engines/libclearlooks.so
Reading symbols from /usr/lib/libglade/2.0/libgnome.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglade/2.0/libgnome.so
Reading symbols from /usr/lib/libglade/2.0/libbonobo.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglade/2.0/libbonobo.so
Reading symbols from /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader-png.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader-png.so
Reading symbols from /usr/lib/pango/1.4.0/modules/pango-basic-fc.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/pango/1.4.0/modules/pango-basic-fc.so

0xffffe410 in ?? ()
(gdb)

---------------------------------

At this time, the users-admin window had frozen, almost blank.

I did anyway the...

(gdb) thread apply all bt

Output was:

----------------------------------------

Thread 1 (Thread -1223436608 (LWP 19044)):
#0  0xffffe410 in ?? ()
#1  0xbfdd1d28 in ?? ()
#2  0x000003e8 in ?? ()
#3  0x00000006 in ?? ()
#4  0xb74790bd in poll () from /lib/tls/i686/cmov/libc.so.6
#5  0xb7720348 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#6  0xb77207e3 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#7  0xb7b93e65 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#8  0x0806110d in gst_tool_process_startup ()
#9  0x08051d92 in main ()
#0  0xffffe410 in ?? ()
(gdb)

--------------------------------------

I couldn't do anything inside the users-admin, because it had frozen, nothing inside the window. Maybe I didn't use well the gdb program. If you are more explicit, I'll follow any steps you tell me and reproduce again the bug.

Revision history for this message

Rafael Ávila Coya (ravila-edu) wrote on 2006-02-20:

#12

Download full text (14.5 KiB)

I thought that maybe it should be done the opposite way.

I started users-admin and create 15 users (with long passwords (6 to 10 caracters or so), just in case). Then, when it hanged (as usual), I enter a terminal and typed:

sudo gdb -p pid-of-users-admin

The output was:

------------------------

GNU gdb 6.3-debian
Copyright 2004 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 "i486-linux-gnu".
Attaching to process 19617
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".

warning: could not load vsyscall page because no executable was specified

warning: try using the "file" command first
Reading symbols from /usr/bin/users-admin...(no debugging symbols found)...done.
Reading symbols from /usr/lib/libgnomeui-2.so.0...(no debugging symbols found).. .done.
Loaded symbols for /usr/lib/libgnomeui-2.so.0
Reading symbols from /usr/lib/libbonoboui-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonoboui-2.so.0
Reading symbols from /usr/lib/libgnome-keyring.so.0...(no debugging symbols foun d)...done.
Loaded symbols for /usr/lib/libgnome-keyring.so.0
Reading symbols from /usr/lib/libgnomecanvas-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnomecanvas-2.so.0
Reading symbols from /usr/lib/libgnome-2.so.0...(no debugging symbols found)...d one.
Loaded symbols for /usr/lib/libgnome-2.so.0
Reading symbols from /lib/libpopt.so.0...
(no debugging symbols found)...done.
Loaded symbols for /lib/libpopt.so.0
Reading symbols from /usr/lib/libart_lgpl_2.so.2...(no debugging symbols found). ..done.
Loaded symbols for /usr/lib/libart_lgpl_2.so.2
Reading symbols from /usr/lib/libpangoft2-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpangoft2-1.0.so.0
Reading symbols from /usr/lib/libgnomevfs-2.so.0...(no debugging symbols found). ..done.
Loaded symbols for /usr/lib/libgnomevfs-2.so.0
Reading symbols from /usr/lib/libbonobo-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonobo-2.so.0
Reading symbols from /usr/lib/libbonobo-activation.so.4...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonobo-activation.so.4
Reading symbols from /usr/lib/libglade-2.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglade-2.0.so.0
Reading symbols from /usr/lib/libgtk-x11-2.0.so.0...(no debugging symbols found) ...done.
Loaded symbols for /usr/lib/libgtk-x11-2.0.so.0
Reading symbols from /usr/lib/libxml2.so.2...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libxml2.so.2
Reading symbols from /usr/lib/libgdk-x11-2.0.so.0...(no debugging symbols found) ...done.
Loaded symbols for /usr/lib/libgdk-x11-2.0.so.0
Reading symbols from /usr/lib/libatk-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libatk-1.0.so.0
Reading symbols from /usr/lib/libgdk_pixbuf-2.0.so.0...(n...

I thought that maybe it should be done the opposite way.

I started users-admin and create 15 users (with long passwords (6 to 10 caracters or so), just in case). Then, when it hanged (as usual), I enter a terminal and typed:

sudo gdb -p pid-of-users-admin

The output was:

------------------------

GNU gdb 6.3-debian
Copyright 2004 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 "i486-linux-gnu".
Attaching to process 19617
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".

warning: could not load vsyscall page because no executable was specified

warning: try using the "file" command first
Reading symbols from /usr/bin/users-admin...(no debugging symbols found)...done.
Reading symbols from /usr/lib/libgnomeui-2.so.0...(no debugging symbols found).. .done.
Loaded symbols for /usr/lib/libgnomeui-2.so.0
Reading symbols from /usr/lib/libbonoboui-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonoboui-2.so.0
Reading symbols from /usr/lib/libgnome-keyring.so.0...(no debugging symbols foun d)...done.
Loaded symbols for /usr/lib/libgnome-keyring.so.0
Reading symbols from /usr/lib/libgnomecanvas-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgnomecanvas-2.so.0
Reading symbols from /usr/lib/libgnome-2.so.0...(no debugging symbols found)...d one.
Loaded symbols for /usr/lib/libgnome-2.so.0
Reading symbols from /lib/libpopt.so.0...
(no debugging symbols found)...done.
Loaded symbols for /lib/libpopt.so.0
Reading symbols from /usr/lib/libart_lgpl_2.so.2...(no debugging symbols found). ..done.
Loaded symbols for /usr/lib/libart_lgpl_2.so.2
Reading symbols from /usr/lib/libpangoft2-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpangoft2-1.0.so.0
Reading symbols from /usr/lib/libgnomevfs-2.so.0...(no debugging symbols found). ..done.
Loaded symbols for /usr/lib/libgnomevfs-2.so.0
Reading symbols from /usr/lib/libbonobo-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonobo-2.so.0
Reading symbols from /usr/lib/libbonobo-activation.so.4...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libbonobo-activation.so.4
Reading symbols from /usr/lib/libglade-2.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglade-2.0.so.0
Reading symbols from /usr/lib/libgtk-x11-2.0.so.0...(no debugging symbols found) ...done.
Loaded symbols for /usr/lib/libgtk-x11-2.0.so.0
Reading symbols from /usr/lib/libxml2.so.2...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libxml2.so.2
Reading symbols from /usr/lib/libgdk-x11-2.0.so.0...(no debugging symbols found) ...done.
Loaded symbols for /usr/lib/libgdk-x11-2.0.so.0
Reading symbols from /usr/lib/libatk-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libatk-1.0.so.0
Reading symbols from /usr/lib/libgdk_pixbuf-2.0.so.0...(no debugging symbols fou nd)...done.
Loaded symbols for /usr/lib/libgdk_pixbuf-2.0.so.0
Reading symbols from /usr/lib/libpangocairo-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpangocairo-1.0.so.0
Reading symbols from /usr/lib/libpango-1.0.so.0...(no debugging symbols found).. .done.
Loaded symbols for /usr/lib/libpango-1.0.so.0
Reading symbols from /usr/lib/libcairo.so.2...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libcairo.so.2
Reading symbols from /usr/lib/libgobject-2.0.so.0...(no debugging symbols found) ...done.
Loaded symbols for /usr/lib/libgobject-2.0.so.0
Reading symbols from /usr/lib/libgconf-2.so.4...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgconf-2.so.4
Reading symbols from /usr/lib/libORBit-2.so.0...(no debugging symbols found)...d one.
Loaded symbols for /usr/lib/libORBit-2.so.0
Reading symbols from /usr/lib/libgmodule-2.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgmodule-2.0.so.0
Reading symbols from /usr/lib/libgthread-2.0.so.0...(no debugging symbols found) ...done.
Loaded symbols for /usr/lib/libgthread-2.0.so.0
Reading symbols from /usr/lib/libglib-2.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglib-2.0.so.0
Reading symbols from /lib/tls/i686/cmov/libcrypt.so.1...(no debugging symbols fo und)...done.
Loaded symbols for /lib/tls/i686/cmov/libcrypt.so.1
Reading symbols from /lib/tls/i686/cmov/libutil.so.1...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libutil.so.1
Reading symbols from /usr/lib/libSM.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libSM.so.6
Reading symbols from /usr/lib/libICE.so.6...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libICE.so.6
Reading symbols from /lib/tls/i686/cmov/libnsl.so.1...(no debugging symbols foun d)...done.
Loaded symbols for /lib/tls/i686/cmov/libnsl.so.1
Reading symbols from /lib/tls/i686/cmov/libresolv.so.2...
---Type <return> to continue, or q <return> to quit---
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libresolv.so.2
Reading symbols from /lib/tls/i686/cmov/librt.so.1...(no debugging symbols found )...done.
Loaded symbols for /lib/tls/i686/cmov/librt.so.1
Reading symbols from /usr/lib/libXinerama.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXinerama.so.1
Reading symbols from /usr/lib/libXi.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXi.so.6
Reading symbols from /usr/lib/libXrandr.so.2...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXrandr.so.2
Reading symbols from /usr/lib/libXext.so.6...(no debugging symbols found)...done .
Loaded symbols for /usr/lib/libXext.so.6
Reading symbols from /usr/lib/libXcursor.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXcursor.so.1
Reading symbols from /usr/lib/libXfixes.so.3...(no debugging symbols found)...do ne.
Loaded symbols for /usr/lib/libXfixes.so.3
Reading symbols from /usr/lib/libXrender.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXrender.so.1
Reading symbols from /usr/lib/libX11.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libX11.so.6
Reading symbols from /usr/lib/libpng12.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpng12.so.0
Reading symbols from /usr/lib/libfontconfig.so.1...(no debugging symbols found). ..done.
Loaded symbols for /usr/lib/libfontconfig.so.1
Reading symbols from /usr/lib/libz.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /lib/tls/i686/cmov/libm.so.6...(no debugging symbols found) ...done.
Loaded symbols for /lib/tls/i686/cmov/libm.so.6
Reading symbols from /lib/tls/i686/cmov/libdl.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libdl.so.2
Reading symbols from /lib/tls/i686/cmov/libpthread.so.0...(no debugging symbols found)...done.
[Thread debugging using libthread_db enabled]
[New Thread -1223600448 (LWP 19617)]
Loaded symbols for /lib/tls/i686/cmov/libpthread.so.0
Reading symbols from /lib/tls/i686/cmov/libc.so.6...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libc.so.6
Reading symbols from /usr/lib/libjpeg.so.62...(no debugging symbols found)...don e.
Loaded symbols for /usr/lib/libjpeg.so.62
Reading symbols from /usr/lib/libesd.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libesd.so.0
Reading symbols from /usr/lib/libaudiofile.so.0...(no debugging symbols found).. .done.
Loaded symbols for /usr/lib/libaudiofile.so.0
Reading symbols from /usr/lib/libfreetype.so.6...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libfreetype.so.6
Reading symbols from /usr/lib/libgnutls.so.11...(no debugging symbols found)...d one.
Loaded symbols for /usr/lib/libgnutls.so.11
Reading symbols from /usr/lib/libORBitCosNaming-2.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libORBitCosNaming-2.so.0
Reading symbols from /usr/lib/libpangoxft-1.0.so.0...(no debugging symbols found )...done.
Loaded symbols for /usr/lib/libpangoxft-1.0.so.0
Reading symbols from /usr/lib/libpangox-1.0.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpangox-1.0.so.0
Reading symbols from /lib/ld-linux.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /usr/lib/libXau.so.6...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXau.so.6
Reading symbols from /usr/lib/libXdmcp.so.6...(no debugging symbols found)...don e.
Loaded symbols for /usr/lib/libXdmcp.so.6
Reading symbols from /usr/lib/libexpat.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libexpat.so.1
Reading symbols from /usr/lib/libasound.so.2...(no debugging symbols found)...do ne.
Loaded symbols for /usr/lib/libasound.so.2
Reading symbols from /usr/lib/libtasn1.so.2...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libtasn1.so.2
Reading symbols from /usr/lib/libgcrypt.so.11...(no debugging symbols found)...d one.
Loaded symbols for /usr/lib/libgcrypt.so.11
Reading symbols from /usr/lib/libgpg-error.so.0...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgpg-error.so.0
Reading symbols from /usr/lib/libXft.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXft.so.2
Reading symbols from /lib/tls/i686/cmov/libnss_compat.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libnss_compat.so.2
Reading symbols from /lib/tls/i686/cmov/libnss_nis.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libnss_nis.so.2
Reading symbols from /lib/tls/i686/cmov/libnss_files.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libnss_files.so.2
Reading symbols from /usr/lib/X11/locale/common/xlcUTF8Load.so.2...(no debugging  symbols found)...done.
Loaded symbols for /usr/lib/X11/locale/common/xlcUTF8Load.so.2
Reading symbols from /usr/lib/gconv/ISO8859-1.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/gconv/ISO8859-1.so
Reading symbols from /usr/lib/gtk-2.0/2.4.0/engines/libclearlooks.so...(no debug ging symbols found)...done.
Loaded symbols for /usr/lib/gtk-2.0/2.4.0/engines/libclearlooks.so
Reading symbols from /usr/lib/libglade/2.0/libgnome.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglade/2.0/libgnome.so
Reading symbols from /usr/lib/libglade/2.0/libbonobo.so...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libglade/2.0/libbonobo.so
Reading symbols from /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader-png.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/gtk-2.0/2.4.0/loaders/libpixbufloader-png.so
Reading symbols from /usr/lib/pango/1.4.0/modules/pango-basic-fc.so...(no debugg ing symbols found)...done.
Loaded symbols for /usr/lib/pango/1.4.0/modules/pango-basic-fc.so
0xffffe410 in ??
    ()
(gdb)

----------------

Then, I typed:

(gdb) thread apply all bt

Output was:

-------

Thread 1 (Thread -1223600448 (LWP 19617)):
#0  0xffffe410 in ?? ()
#1  0xbfba8a08 in ?? ()
#2  0x00000064 in ?? ()
#3  0x00000001 in ?? ()
#4  0xb74510bd in poll () from /lib/tls/i686/cmov/libc.so.6
#5  0x0805f9d5 in gst_init ()
#6  0x0805fa2d in gst_tool_read_from_backend ()
#7  0x0805ff70 in gst_tool_show_help ()
#8  0x0806038e in gst_tool_run_set_directive ()
#9  0x0806060b in gst_tool_save ()
#10 0xb77eeab3 in g_cclosure_marshal_VOID__VOID ()
   from /usr/lib/libgobject-2.0.so.0
#11 0xb77e33a8 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#12 0xb77f1b13 in g_signal_stop_emission () from /usr/lib/libgobject-2.0.so.0
#13 0xb77f3150 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#14 0xb77f34c3 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#15 0x0805d5f8 in gst_dialog_widget_set_user_sensitive ()
#16 0x0805d98e in gst_dialog_ask_apply ()
#17 0xb77eeab3 in g_cclosure_marshal_VOID__VOID ()
   from /usr/lib/libgobject-2.0.so.0
#18 0xb77e33a8 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#19 0xb77f1b13 in g_signal_stop_emission () from /usr/lib/libgobject-2.0.so.0
#20 0xb77f3150 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#21 0xb77f34c3 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#22 0xb7aad22c in gtk_button_clicked () from /usr/lib/libgtk-x11-2.0.so.0
#23 0xb7aaea4c in _gtk_button_set_depressed ()
   from /usr/lib/libgtk-x11-2.0.so.0
#24 0xb77eeab3 in g_cclosure_marshal_VOID__VOID ()
   from /usr/lib/libgobject-2.0.so.0
#25 0xb77e2d75 in g_cclosure_new_swap () from /usr/lib/libgobject-2.0.so.0
#26 0xb77e33a8 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#27 0xb77f1769 in g_signal_stop_emission () from /usr/lib/libgobject-2.0.so.0
#28 0xb77f3150 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#29 0xb77f34c3 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#30 0xb7aad1a6 in gtk_button_released () from /usr/lib/libgtk-x11-2.0.so.0
#31 0xb7aae115 in _gtk_button_paint () from /usr/lib/libgtk-x11-2.0.so.0
#32 0xb7b6e02c in _gtk_marshal_BOOLEAN__BOXED ()
   from /usr/lib/libgtk-x11-2.0.so.0
#33 0xb77e2d75 in g_cclosure_new_swap () from /usr/lib/libgobject-2.0.so.0
#34 0xb77e33a8 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#35 0xb77f1c9f in g_signal_stop_emission () from /usr/lib/libgobject-2.0.so.0
#36 0xb77f2ec3 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#37 0xb77f34c3 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#38 0xb7c5016f in gtk_widget_activate () from /usr/lib/libgtk-x11-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#39 0xb7b6c767 in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0
#40 0xb7b6cba0 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#41 0xb7903b2d in _gdk_events_queue () from /usr/lib/libgdk-x11-2.0.so.0
#42 0xb76f54ee in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#43 0xb76f84f6 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#44 0xb76f87e3 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#45 0xb7b6be65 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#46 0x0806110d in gst_tool_process_startup ()
#47 0x08051d92 in main ()
#0  0xffffe410 in ?? ()
(gdb)

----------

Again, tell what to do and I'll do it.

Cheers.

Revision history for this message

Gary Coady (garycoady) wrote on 2006-04-01:

#13

I think these are both the same problem.

Creating a large number of users causes an invalid XML file to be sent to the backend - a line is truncated at 4096 characters, so it looks like a static buffer is filled.

The backend tools don't use a "real" XML parser, so they will try to use an invalid XML document. The corrupted file causes users not to be added, groups to be deleted, etc.

In my case, it deleted the groups: adm, tty, disk, kmem, dialout, fax, voice, cdrom, floppy, tape, sudo, audio, dip, operator, src, shadow, utmp, video, sasl, plugdev, staff, users, crontab, ssh, slocate, scanner and admin.

Revision history for this message

Gary Coady (garycoady) wrote on 2006-04-01: Example truncated in.xml

#14

Example truncated in.xml Edit (27.5 KiB, text/xml)

See line 483 of the file for the truncation.

Revision history for this message

Gary Coady (garycoady) wrote on 2006-04-02:

#15

I didn't find where the 4095 char buffer problem is - it's somewhere in the processing of the backend script, the frontend sends the full contents without truncation.

A workaround would be to avoid having as long a line, by adding a linefeed after every addition of a user to the XML file.

Revision history for this message

Gary Coady (garycoady) wrote on 2006-04-02: Break up a long list of users into shorter lines

#16

Break up a long list of users into shorter lines Edit (2.3 KiB, text/plain)

Patch adds linefeeds to keep the size of the lines below 4096 characters (in the XML file supplied to the backend). This works around an apparent limitation in the backend script.

Revision history for this message

Daniel Holbach (dholbach) wrote on 2006-04-04:

#17

gnome-system-tools (2.14.0-0ubuntu3) dapper; urgency=low
.
   * debian/patches/28_break_long_lines:
     - add patch from Gary Coady <email address hidden> to fix Malone: #31675
       ("Problem when making many users with "users admin. tool" at one time")

Changed in gnome-system-tools:
status:	Needs Info → Fix Released

Bug Watch Updater (bug-watch-updater) on 2010-09-16

Changed in gst:
importance:	Unknown → Critical

Affects		Status	Importance	Assigned to	Milestone
	GST	Fix Released	Critical	gnome-bugs #336935
	gnome-system-tools (Ubuntu)	Fix Released	High	Ubuntu Desktop Bugs

Ubuntu
gnome-system-tools package

Problem when making many users with "users admin. tool" at one time

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Ubuntugnome-system-tools package

Problem when making many users with "users admin. tool" at one time

Bug Description

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Patches

Bug attachments

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Ubuntu
gnome-system-tools package