[libvirt-users] Fedora 19/20 new install :Unable to create vcpu cgroup

[Patrick Chemla]

Hi,

I have now 2 servers, each with 128Gb memory and 6c/12t processors and 
2Tb RAID1 disks. It should large enough.

1 server is running Fedora 20 kernel 3.14.7-200.fc20.x86_64.

I set the second server back to Fedora 19 running kernel 
3.14.4-100.fc19.x86_64.

I am running virt-manager-1.0.1-3.fc20.noarch from my Fedora 20 desktop 
kernel 3.14.6-200.fc20.x86_64.

I have created a VM Fedora20 onto my desktop, I tested there and it's 
OK, and I have transfered the disk image to the 2 servers.

On Fedora 19 server, I can start this image, but it seems it is not 
fully started because I can't connect to it through the virt-manager, 
nor I can't find its IP address to try ssh.

I tried to create a new VM and it works just fine.

On Fedora 20


I tried to create a new VM based on Fedora20 DVD.iso. I am getting this 
message when the VM is started:
Impossible de terminer l'installation : « internal error: process exited 
while connecting to monitor: Failed to create chardev
»

Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 91, in 
cb_wrapper
callback(asyncjob, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/create.py", line 1787, in 
do_install
guest.start_install(meter=meter)
File "/usr/share/virt-manager/virtinst/guest.py", line 403, in start_install
noboot)
File "/usr/share/virt-manager/virtinst/guest.py", line 467, in _create_guest
dom = self.conn.createLinux(start_xml or final_xml, 0)
File "/usr/lib64/python2.7/site-packages/libvirt.py", line 2897, in 
createLinux
if ret is None:raise libvirtError('virDomainCreateLinux() failed', 
conn=self)
libvirtError: internal error: process exited while connecting to 
monitor: Failed to create chardev

So I will format all my servers to Fedora 19.

Thanks for help

Patrick


Le 16/06/2014 07:08, Kashyap Chamarthy a écrit :
> On Sun, Jun 15, 2014 at 01:33:46PM +0300, Patrick Chemla wrote:
>> Hi,
>>
>> I sill need some help.
>>
>> I tried to remove cdrom and USB controllers from qemu xml definition
>> file.
>>
>>
>> Still same Failed to create chardev when trying to run a Vms that run
>> on my local Fedora 20 computer.
> You didn't answer my question in the previous email that you ensured
> that you have enough free memory to create a VM on your remote host.
>
>  From your previous mail, your permissions look right, and you don't have
> to own the disk images to QEMU.
>
> Also, please try `virt-builder` tool to create a VM as I noted in my
> first reply to this thread.
>