[rhos-list] Nova-network v.s. Quantum in Openstack preview

Perry Myers pmyers at redhat.com
Fri Feb 15 15:09:40 UTC 2013


On 02/15/2013 10:06 AM, Shixiong Shang (shshang) wrote:
> Hi, Perry:
> 
> Thanks a lot for chiming in! KVM crashed during operation. VM stayed in
> "starting" mode for about 10 secs and then went straight to "paused" mode. 
> 
> Here is the output you are looking for and appreciate the head up of
> RHEL 6.4 GA release! I cannot wait!

Thanks for the input below.  I don't see anything obvious.

We might need to bring in a member of the kvm team to help out here.

Karen, is there someone that could take a look at this backtrace?

https://www.redhat.com/archives/rhos-list/2013-February/msg00046.html

Cheers,

Perry

> Shixiong
> 
> 
> 
> 
> Last login: Thu Feb 14 21:03:17 2013 from 13.23.225.252
> [dmd at as-cmp1 ~]$ virsh capabilities
> <capabilities>
> 
>   <host>
>     <uuid>ad4b57cf-bf15-06ef-a735-0be06abefc82</uuid>
>     <cpu>
>       <arch>x86_64</arch>
>       <model>Nehalem</model>
>       <vendor>Intel</vendor>
>       <topology sockets='4' cores='2' threads='1'/>
>       <feature name='rdtscp'/>
>       <feature name='vmx'/>
>       <feature name='ht'/>
>       <feature name='ss'/>
>       <feature name='acpi'/>
>       <feature name='ds'/>
>       <feature name='vme'/>
>     </cpu>
>     <power_management>
>       <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'/>
>             <cpu id='1'/>
>             <cpu id='2'/>
>             <cpu id='3'/>
>             <cpu id='4'/>
>             <cpu id='5'/>
>             <cpu id='6'/>
>             <cpu id='7'/>
>           </cpus>
>         </cell>
>       </cells>
>     </topology>
>     <secmodel>
>       <model>selinux</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>
>       <domain type='kvm'>
>         <emulator>/usr/libexec/qemu-kvm</emulator>
>       </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>
>       <domain type='kvm'>
>         <emulator>/usr/libexec/qemu-kvm</emulator>
>       </domain>
>     </arch>
>     <features>
>       <cpuselection/>
>       <deviceboot/>
>       <acpi default='on' toggle='yes'/>
>       <apic default='on' toggle='no'/>
>     </features>
>   </guest>
> 
> </capabilities>
> 
> 
> 
> [dmd at as-cmp1 ~]$ lsmod | grep kvm
> kvm_intel              53484  0 
> kvm                   315450  1 kvm_intel
> [dmd at as-cmp1 ~]$ 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> On Feb 15, 2013, at 6:04 AM, Perry Myers <pmyers at redhat.com
> <mailto:pmyers at redhat.com>>
>  wrote:
> 
>> On 02/15/2013 04:31 AM, Gary Kotton wrote:
>>> On 02/15/2013 04:54 AM, Shixiong Shang (shshang) wrote:
>>>> Hi, Gary:
>>>>
>>>> I tried to put SELinux in PERMISSIVE mode and spawned up new VM using
>>>> cirros image today, but still no luck. I spent the rest of the day
>>>> searching Redhat bugs based on numerous error msgs in various log
>>>> files. Found tons of stuff, but most of them didn't seem to be
>>>> relevant and helpful.
>>>>
>>>> One thing caught my eyes is a case submitted back in 2010 and updated
>>>> early this year. The KVM error message in instance console log is
>>>> similar to the one in my case. Based on the description, seems like
>>>> the KVM crash is caused by defective CPU or unsupported CPU model. I
>>>> will try different machine for better luck.
>>>>
>>>> https://bugzilla.redhat.com/show_bug.cgi?id=639208
>>
>> Shixiong,
>>
>> Is it a kvm crash during operation or does it fail to start at all?
>>
>> Just as a sanity check, can you run virsh capabilities and give us the
>> output?
>>
>> And also:
>> lsmod | grep kvm
>>
>>>> Will keep you posted if I can root cause the problem. In the
>>>> meanwhile, if anything pops to your mind, please let me know.
>>>
>>> Thanks for the update. Which RHEL version are you using? I am using RHEL
>>> 6.4. I do the following:
>>> - install from disk
>>> - subscripion registration
>>> - i then make sure that the RHEL 6.4 beta repo is added:
>>>
>>> [rhel64beta]
>>> name=RHEL64 BETA
>>> #baseurl=http://download.eng.tlv.redhat.com/pub/rhel/rel-eng/RHEL6.4-20130130.0/6.4/source
>>> baseurl=http://download.eng.tlv.redhat.com/pub/rhel/rel-eng/RHEL6.4-20130130.0/6.4/Server/x86_64/os/
>>> enabled=1
>>> gpgcheck=0
>>> (please do not do a yum update after this - it causes conflicts with
>>> packstack)
>>> - then i install the latest packstack
>>> - run packstack and everything works (bar the minor iptable issue we
>>> have discussed)
>>
>> One hiccup in the above...
>>
>> Because the RHEL 6.4 GA release is imminent, the RHEL 6.4 Beta Repos
>> have been emptied.  It's part of the normal release engineering process.
>> So for a short time, you might be stuck with getting updated packages
>> or reinstalling from scratch on a new host.
>>
>> This issue should clear up in the next week as we get GA packages out
>> the door.  I'll send a more general note to the list about it.
>>
>> Perry
> 




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