libvirt users - Jul 2017 - Re: Ubuntu 16.04 libvirt-guests.sh [6917] - running guests under URI address default: no running guests

Hi Dominik,

So what is going on on my computer with the script *libvirt-guests.sh*? Why
is it hanging on it? How should I address this problem?

I really appreciate your help!

Thank you!

2017-07-07 9:20 GMT+02:00 Dominik Psenner <dpsenner@gmail.com>:
> And software is up to date to latest version in LTS:
>
> $ virsh --version
> 1.3.1
>
>
> 2017-07-07 9:20 GMT+02:00 Dominik Psenner <dpsenner@gmail.com>:
>
>> $ uname -a
>> Linux mugen 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:54:43 UTC
2017
>> x86_64 x86_64 x86_64 GNU/Linux
>> $ lsb_release -a
>> No LSB modules are available.
>> Distributor ID: Ubuntu
>> Description: Ubuntu 16.04.2 LTS
>> Release: 16.04
>> Codename: xenial
>>
>> 2017-07-07 9:18 GMT+02:00 Dominik Psenner <dpsenner@gmail.com>:
>>
>>> Hey
>>>
>>> FWIW, I have virsh running on my laptop too and no virtual machines
>>> registered to autostart but my laptop reboots just fine and shows
no traces
>>> of any warnings.
>>>
>>> Cheers,
>>> Dominik
>>>
>>> 2017-07-06 22:53 GMT+02:00 Jędrek Domański
<jedrek.domanski@gmail.com>:
>>>
>>>> Hello,
>>>>
>>>> Am I addressing this issue to the right address? Please
respond.
>>>>
>>>> 2017-07-04 9:31 GMT+02:00 Jędrek Domański
<jedrek.domanski@gmail.com>:
>>>>
>>>>> Hello? What is the status of this issue?
>>>>>
>>>>> 2017-06-30 22:24 GMT+02:00 Jędrek Domański
<jedrek.domanski@gmail.com>
>>>>> :
>>>>>
>>>>>> Hi
>>>>>>
>>>>>> I have recently upgraded from Ubuntu 15.04 to 16.04 and
now everytime
>>>>>> I shutdown my PC I get a black screen where it says
"libvirt-guests.sh
>>>>>> [6917] - running guests under URI address default: no
running guests" and
>>>>>> the PC just hangs forever and will not shutdown. I need
to manually kill it
>>>>>> in order to shut it down which is a pain in the ass. I
have done some
>>>>>> investigation and here is what I've found out so
far.
>>>>>>
>>>>>> I have uninstalled libvirt, kvm and qemu:
>>>>>>
>>>>>> sudo apt-get purge libvirt* kvm qemu*
>>>>>>
>>>>>> The problem has gone, however I noticed some error
messages at boot
>>>>>> saying something that "FAILED Qemu .... It flashes
so quickly and I am not
>>>>>> able to read what exactly it says. I installed libvirt
again:
>>>>>>
>>>>>> sudo apt install qemu-kvm libvirt-bin
>>>>>>
>>>>>> and the problem is back!
>>>>>>
>>>>>> So is this script trying to shutdown my virtual
machines? It looks
>>>>>> like it does but since it does not find any it hangs? I
don't have any
>>>>>> machines, though. I used to have one, but I removed it.
What is
>>>>>> interesting, my PC hangs at shutdown randomly, that is
sometimes it hangs
>>>>>> for like 15 seconds and it shutsdown but in most cases
it hangs forever. So
>>>>>> this happens randomly.
>>>>>>
>>>>>> So, this investigation has brought me to you guys so
please help me.
>>>>>> I have attached a screen (sorry for polish error
message but the
>>>>>> translation is in the email title).
>>>>>>
>>>>>> I have also posted a thread on AskUbuntu on this:
>>>>>>
>>>>>>
https://askubuntu.com/questions/925696/ubuntu-16-04-libvirt-
>>>>>> guests-sh-6917-running-guests-under-uri-address-default
>>>>>>
>>>>>> Thank you,
>>>>>> Jędrzej
>>>>>>
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
>>>> libvirt-users mailing list
>>>> libvirt-users@redhat.com
>>>> https://www.redhat.com/mailman/listinfo/libvirt-users
>>>>
>>>
>>>
>>>
>>> --
>>> Dominik Psenner
>>>
>>
>>
>>
>> --
>> Dominik Psenner
>>
>
>
>
> --
> Dominik Psenner
>

I truly have no idea. You could try to reinstall virsh and all its
components (qemu, kvm, ..) with:

$ apt purge [...]

and then reinstall virsh and see if the issue persists.

Or, a more drastic step would be to start with a fresh new ubuntu
installation on your computer and see if the issue just goes away? Of
course this will require you to backup your data and restore it later.. not
a nice task to do but sometimes it is necessary.

Just yesterday I discovered that an application installed mongodb as a
dependency but when I removed the application it decided to keep back
gigabytes of database files.. I managed to remove those files but I don't
trust the installation anymore and am going to do a clean reinstallation of
the entire operating system. Who knows what's being left behind while
trying out different things. Always setting up virtual machines when trying
something out is a lot of work, but advisable good practice because it
allows one to throw away all modifications made.

I'm afraid that's all I can come with.

Good luck!

2017-07-07 9:46 GMT+02:00 Jędrek Domański <jedrek.domanski@gmail.com>:
> Hi Dominik,
>
> So what is going on on my computer with the script *libvirt-guests.sh*?
> Why is it hanging on it? How should I address this problem?
>
> I really appreciate your help!
>
> Thank you!
>
> 2017-07-07 9:20 GMT+02:00 Dominik Psenner <dpsenner@gmail.com>:
>
>> And software is up to date to latest version in LTS:
>>
>> $ virsh --version
>> 1.3.1
>>
>>
>> 2017-07-07 9:20 GMT+02:00 Dominik Psenner <dpsenner@gmail.com>:
>>
>>> $ uname -a
>>> Linux mugen 4.4.0-83-generic #106-Ubuntu SMP Mon Jun 26 17:54:43
UTC
>>> 2017 x86_64 x86_64 x86_64 GNU/Linux
>>> $ lsb_release -a
>>> No LSB modules are available.
>>> Distributor ID: Ubuntu
>>> Description: Ubuntu 16.04.2 LTS
>>> Release: 16.04
>>> Codename: xenial
>>>
>>> 2017-07-07 9:18 GMT+02:00 Dominik Psenner
<dpsenner@gmail.com>:
>>>
>>>> Hey
>>>>
>>>> FWIW, I have virsh running on my laptop too and no virtual
machines
>>>> registered to autostart but my laptop reboots just fine and
shows no traces
>>>> of any warnings.
>>>>
>>>> Cheers,
>>>> Dominik
>>>>
>>>> 2017-07-06 22:53 GMT+02:00 Jędrek Domański
<jedrek.domanski@gmail.com>:
>>>>
>>>>> Hello,
>>>>>
>>>>> Am I addressing this issue to the right address? Please
respond.
>>>>>
>>>>> 2017-07-04 9:31 GMT+02:00 Jędrek Domański
<jedrek.domanski@gmail.com>:
>>>>>
>>>>>> Hello? What is the status of this issue?
>>>>>>
>>>>>> 2017-06-30 22:24 GMT+02:00 Jędrek Domański
<jedrek.domanski@gmail.com
>>>>>> >:
>>>>>>
>>>>>>> Hi
>>>>>>>
>>>>>>> I have recently upgraded from Ubuntu 15.04 to 16.04
and now
>>>>>>> everytime I shutdown my PC I get a black screen
where it says
>>>>>>> "libvirt-guests.sh [6917] - running guests
under URI address default: no
>>>>>>> running guests" and the PC just hangs forever
and will not shutdown. I need
>>>>>>> to manually kill it in order to shut it down which
is a pain in the ass. I
>>>>>>> have done some investigation and here is what
I've found out so far.
>>>>>>>
>>>>>>> I have uninstalled libvirt, kvm and qemu:
>>>>>>>
>>>>>>> sudo apt-get purge libvirt* kvm qemu*
>>>>>>>
>>>>>>> The problem has gone, however I noticed some error
messages at boot
>>>>>>> saying something that "FAILED Qemu .... It
flashes so quickly and I am not
>>>>>>> able to read what exactly it says. I installed
libvirt again:
>>>>>>>
>>>>>>> sudo apt install qemu-kvm libvirt-bin
>>>>>>>
>>>>>>> and the problem is back!
>>>>>>>
>>>>>>> So is this script trying to shutdown my virtual
machines? It looks
>>>>>>> like it does but since it does not find any it
hangs? I don't have any
>>>>>>> machines, though. I used to have one, but I removed
it. What is
>>>>>>> interesting, my PC hangs at shutdown randomly, that
is sometimes it hangs
>>>>>>> for like 15 seconds and it shutsdown but in most
cases it hangs forever. So
>>>>>>> this happens randomly.
>>>>>>>
>>>>>>> So, this investigation has brought me to you guys
so please help me.
>>>>>>> I have attached a screen (sorry for polish error
message but the
>>>>>>> translation is in the email title).
>>>>>>>
>>>>>>> I have also posted a thread on AskUbuntu on this:
>>>>>>>
>>>>>>>
https://askubuntu.com/questions/925696/ubuntu-16-04-libvirt-
>>>>>>>
guests-sh-6917-running-guests-under-uri-address-default
>>>>>>>
>>>>>>> Thank you,
>>>>>>> Jędrzej
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> libvirt-users mailing list
>>>>> libvirt-users@redhat.com
>>>>> https://www.redhat.com/mailman/listinfo/libvirt-users
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Dominik Psenner
>>>>
>>>
>>>
>>>
>>> --
>>> Dominik Psenner
>>>
>>
>>
>>
>> --
>> Dominik Psenner
>>
>
>

-- 
Dominik Psenner

On Fri, 2017-07-07 at 09:46 +0200, Jędrek Domański
wrote:
> Hi Dominik,
> 
> So what is going on on my computer with the script libvirt-guests.sh?
> Why is it hanging on it? How should I address this problem?
Not sure what the root cause of your problem is, but you
can use

  # systemctl disable libvirt-guests

to verify if the script is really what causes shutdown
to hang. It might very well be that it's merely the last
thing producing output before the actual issue occurs.

-- 
Andrea Bolognani / Red Hat / Virtualization

Andrea,

You are a genius!!! :D It's worked :)) Thank yo so much!!! XD

2017-07-07 12:14 GMT+02:00 Andrea Bolognani <abologna@redhat.com>:
> On Fri, 2017-07-07 at 09:46 +0200, Jędrek Domański wrote:
> > Hi Dominik,
> >
> > So what is going on on my computer with the script libvirt-guests.sh?
> > Why is it hanging on it? How should I address this problem?
>
> Not sure what the root cause of your problem is, but you
> can use
>
>   # systemctl disable libvirt-guests
>
> to verify if the script is really what causes shutdown
> to hang. It might very well be that it's merely the last
> thing producing output before the actual issue occurs.
>
> --
> Andrea Bolognani / Red Hat / Virtualization
>