[Users] Host Error

Itamar Heim iheim at redhat.com
Tue Oct 22 01:56:09 EDT 2013


On 10/21/2013 03:39 PM, Neil wrote:
> Thanks guys,
>
> Your questions lead me to the fact that another technician had
> installed "vdsm-hook-nestedvt" to try and get nested virtualization on
> a VM working a while back. I have removed the hook and restarted and
> this resolved the issue.
>
> Thanks once again, much appreciated.

danken - shouldn't the hook (if in rpm form) require a kernel which 
actually supports nested, to not be installed on .el6, etc.?

>
> Regards.
>
> Neil Wilson.
>
>
> On Mon, Oct 21, 2013 at 4:25 PM, Alon Bar-Lev <alonbl at redhat.com> wrote:
>>
>>
>> ----- Original Message -----
>>> From: "Neil" <nwilson123 at gmail.com>
>>> To: "Dan Kenigsberg" <danken at redhat.com>
>>> Cc: users at ovirt.org
>>> Sent: Monday, October 21, 2013 5:20:41 PM
>>> Subject: Re: [Users] Host Error
>>>
>>> Okay, below is the modprobe and attached is the capabilities from the
>>> vdsm.log
>>>
>>> modprobe kvm_intel
>>> FATAL: Error inserting kvm_intel
>>> (/lib/modules/2.6.32-358.23.2.el6.x86_64/kernel/arch/x86/kvm/kvm-intel.ko):
>>> Unknown symbol in module, or unknown parameter (see dmesg)
>>>
>>> According to this message, I should see something in dmesg, but I
>>> don't see anything when I run the modprobe.
>>>
>>> If I search through my dmesg I do see this though "kvm_intel: Unknown
>>> parameter `nested'"
>>
>> Do you have anything special at /etc/modprobe.d?
>> Have you complied the kernel manually?
>>
>>>
>>> Please shout if you need anything else though.
>>>
>>> Thank so much.
>>>
>>> Regards.
>>>
>>> Neil Wilson.
>>>
>>>
>>>
>>> On Mon, Oct 21, 2013 at 3:22 PM, Dan Kenigsberg <danken at redhat.com> wrote:
>>>> On Mon, Oct 21, 2013 at 12:50:29PM +0200, Neil wrote:
>>>>> Hi Dan,
>>>>>
>>>>> Thanks, below are the results.
>>>>>
>>>>> [root at ovirt02 ~]# virsh -r capabilities
>>>>> <capabilities>
>>>>>
>>>>>    <host>
>>>>>      <uuid>6d0aa20e-c6c2-410d-b3c5-3c87af15dd7c</uuid>
>>>>>      <cpu>
>>>>>        <arch>x86_64</arch>
>>>>>        <model>Haswell</model>
>>>>>        <vendor>Intel</vendor>
>>>>>        <topology sockets='1' cores='4' threads='2'/>
>>>>>        <feature name='abm'/>
>>>>>        <feature name='pdpe1gb'/>
>>>>>        <feature name='rdrand'/>
>>>>>        <feature name='f16c'/>
>>>>>        <feature name='osxsave'/>
>>>>>        <feature name='pdcm'/>
>>>>>        <feature name='xtpr'/>
>>>>>        <feature name='tm2'/>
>>>>>        <feature name='est'/>
>>>>>        <feature name='smx'/>
>>>>>        <feature name='vmx'/>
>>>>>        <feature name='ds_cpl'/>
>>>>>        <feature name='monitor'/>
>>>>>        <feature name='dtes64'/>
>>>>>        <feature name='pbe'/>
>>>>>        <feature name='tm'/>
>>>>>        <feature name='ht'/>
>>>>>        <feature name='ss'/>
>>>>>        <feature name='acpi'/>
>>>>>        <feature name='ds'/>
>>>>>        <feature name='vme'/>
>>>>>      </cpu>
>>>>>      <power_management>
>>>>>        <suspend_mem/>
>>>>>        <suspend_disk/>
>>>>>      </power_management>
>>>>>      <migration_features>
>>>>>        <live/>
>>>>>        <uri_transports>
>>>>>          <uri_transport>tcp</uri_transport>
>>>>>        </uri_transports>
>>>>>      </migration_features>
>>>>>      <topology>
>>>>>        <cells num='1'>
>>>>>          <cell id='0'>
>>>>>            <cpus num='8'>
>>>>>              <cpu id='0' socket_id='0' core_id='0' siblings='0,4'/>
>>>>>              <cpu id='1' socket_id='0' core_id='1' siblings='1,5'/>
>>>>>              <cpu id='2' socket_id='0' core_id='2' siblings='2,6'/>
>>>>>              <cpu id='3' socket_id='0' core_id='3' siblings='3,7'/>
>>>>>              <cpu id='4' socket_id='0' core_id='0' siblings='0,4'/>
>>>>>              <cpu id='5' socket_id='0' core_id='1' siblings='1,5'/>
>>>>>              <cpu id='6' socket_id='0' core_id='2' siblings='2,6'/>
>>>>>              <cpu id='7' socket_id='0' core_id='3' siblings='3,7'/>
>>>>>            </cpus>
>>>>>          </cell>
>>>>>        </cells>
>>>>>      </topology>
>>>>>      <secmodel>
>>>>>        <model>selinux</model>
>>>>>        <doi>0</doi>
>>>>>      </secmodel>
>>>>>      <secmodel>
>>>>>        <model>dac</model>
>>>>>        <doi>0</doi>
>>>>>      </secmodel>
>>>>>    </host>
>>>>>
>>>>>    <guest>
>>>>>      <os_type>hvm</os_type>
>>>>>      <arch name='i686'>
>>>>>        <wordsize>32</wordsize>
>>>>>        <emulator>/usr/libexec/qemu-kvm</emulator>
>>>>>        <machine>rhel6.4.0</machine>
>>>>>        <machine canonical='rhel6.4.0'>pc</machine>
>>>>>        <machine>rhel6.3.0</machine>
>>>>>        <machine>rhel6.2.0</machine>
>>>>>        <machine>rhel6.1.0</machine>
>>>>>        <machine>rhel6.0.0</machine>
>>>>>        <machine>rhel5.5.0</machine>
>>>>>        <machine>rhel5.4.4</machine>
>>>>>        <machine>rhel5.4.0</machine>
>>>>>        <domain type='qemu'>
>>>>>        </domain>
>>>>>      </arch>
>>>>>      <features>
>>>>>        <cpuselection/>
>>>>>        <deviceboot/>
>>>>>        <acpi default='on' toggle='yes'/>
>>>>>        <apic default='on' toggle='no'/>
>>>>>        <pae/>
>>>>>        <nonpae/>
>>>>>      </features>
>>>>>    </guest>
>>>>>
>>>>>    <guest>
>>>>>      <os_type>hvm</os_type>
>>>>>      <arch name='x86_64'>
>>>>>        <wordsize>64</wordsize>
>>>>>        <emulator>/usr/libexec/qemu-kvm</emulator>
>>>>>        <machine>rhel6.4.0</machine>
>>>>>        <machine canonical='rhel6.4.0'>pc</machine>
>>>>>        <machine>rhel6.3.0</machine>
>>>>>        <machine>rhel6.2.0</machine>
>>>>>        <machine>rhel6.1.0</machine>
>>>>>        <machine>rhel6.0.0</machine>
>>>>>        <machine>rhel5.5.0</machine>
>>>>>        <machine>rhel5.4.4</machine>
>>>>>        <machine>rhel5.4.0</machine>
>>>>>        <domain type='qemu'>
>>>>>        </domain>
>>>>>      </arch>
>>>>>      <features>
>>>>>        <cpuselection/>
>>>>>        <deviceboot/>
>>>>>        <acpi default='on' toggle='yes'/>
>>>>>        <apic default='on' toggle='no'/>
>>>>>      </features>
>>>>>    </guest>
>>>>>
>>>>> </capabilities>
>>>>
>>>> seems fine to me.
>>>>
>>>>>
>>>>>
>>>>> [root at ovirt02 ~]# lsmod | grep kvm
>>>>> kvm                   317504  0
>>>>
>>>> I'd expect kvm_intel here, too. Could you manually modprobe it and
>>>> retry?
>>>>
>>>> Another thing that I should have asked for is the output of
>>>> getVdsCapabilities in your vdsm.log.
>>>
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