[libvirt-users] libvirt hang on domain attemp to create domain

[Michal Privoznik]

On 18.06.2013 22:21, Александр wrote:
> В письме от Вторник, 18-июн-2013 12:10:41 пользователь Michal Privoznik 
> написал:
>> On 18.06.2013 07:14, Александр wrote:
>>> good day, i am trying to create domain via virDomainDefineXML. and my
>>> program hanging, also i failed to caonnect to libvirt daemon with
>>> virt-manager after this, only killing libvirtd via SIGKILL and restarting
>>> it solveing hang (i mean after restart i able to connect with
>>> virt-manager), i using following domain xml
>>>
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <domain type="kvm">
>>>
>>>   <tittle>Automatically created domain with default configuration</tittle>
>>>   <name>vm1</name>
>>>   <description>no description</description>
>>>   <os>
>>>   
>>>     <type>hvm</type>
>>>     <boot dev="cdrom"/>
>>>     <boot dev="hd"/>
>>>   
>>>   </os>
>>>   <vcpu>1</vcpu>
>>>   <memory unit="MB">512</memory>
>>>   <cpu model="host-model">
>>>   
>>>     <topology sockets="1" cores="1" threads="1"/>
>>>   
>>>   </cpu>
>>>   <clock offset="localtime"/>
>>>   <devices>
>>>   
>>>     <graphics type="vnc" autoport="yes" password="admin"/>
>>>     <channel type="unix">
>>>     
>>>       <source mode="bind" path="/var/run/vm1.sock"/>
>>>       <target type="virtio" name="org.guest_agent.0"/>
>>>     
>>>     </channel>
>>>   
>>>   </devices>
>>>
>>> </domain>
>>>
>>> i have this calls on stack
>>>
>>> 0  0x00007ffff48c1750  __poll_nocancel
>>> 1  0x00007ffff649e5ca  virNetClientIOEventLoop
>>
>> This is just probably a client waiting for the corresponding libvirtd to
>> provide a reply message. Are you able to get libvirtd debug logs so we
>> can see what's going on?
>>
>> http://wiki.libvirt.org/page/DebugLogs
>>
>> BTW, what's the libvirt version you are running?
>>
>> Michal
>>
>>> 2  0x00007ffff649ed96  virNetClientSendInternal
>>> 3  0x00007ffff64a0443  virNetClientSendWithReply
>>> 4  0x00007ffff64a0daa  virNetClientProgramCall
>>> 5  0x00007ffff6478566  callFull.isra.2
>>> 6  0x00007ffff6487fa2  remoteDomainDefineXML
>>> 7  0x00007ffff6449d2f  virDomainDefineXML
>>> 8  0x0000000000426941  virt_domain::create
>>> /home/sss/install/git/work/avirt/vm_pool/vm_pool/libvirt.cpp  295
>>> 9  0x000000000040c1a9  main
>>> /home/sss/install/git/work/avirt/vm_pool/vm_pool/main.cpp  40
>>>
>>> what i am doing wrong ?
>>>
>>>
>>>
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>>> libvirt-users at redhat.com
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> 
> i have libvirt version 1.0.6, debug log in attachment.
> 

Yuck, this is 1.0.6; Well, from the logs it seems like the daemon is
stuck. Can you attach to the libvirtd while it's being stuck and run 't
a a bt' and post the result? I wonder if we have a deadlock somewhere.

Michal