Re: [Xen-users] xm vcpu-set won't add cpu's...

[Olivier Hanesse <olivier.hanesse@xxxxxxxxx>]

Hello, 

I am running the lastest pvops dom0 Kernel 2.6.32.26 (with Pasi config file from 2.6.32.25 without some kernel debug options )

When I set the number of vcpu from the dom0, I get some strange logs on domU :

Cannot set affinity for irq 540
Broke affinity for irq 545
Broke affinity for irq 546
Broke affinity for irq 547
Broke affinity for irq 548
Broke affinity for irq 549


Olivier

2010/11/25 Kristoffer Egefelt <dr.fersken@xxxxxxxxx>

I just tried compiling xen-4.0-testing.hg - same issue...

Any hints? :-)

On Wed, Nov 24, 2010 at 1:08 PM, Olivier Hanesse
<olivier.hanesse@xxxxxxxxx> wrote:

> Hello,
>
> On my debian squeeze, I think I got the same issue.
> Starting a server with 4 vcpus (vcpus=4 in config file), I can "vcpu-set" 2
> vcpus for this server successfully, but I can't rollback to 4 vcpu.
>
> Xend Log file says :
>
> [2010-11-24 13:01:23 19542] INFO (XendDomainInfo:1987) Set VCPU count on
> domain testvm to 2
> [2010-11-24 13:01:48 19542] INFO (XendDomainInfo:1987) Set VCPU count on
> domain testvm to 4
>
> But cpus are offline in domU/paused in dom0.
>
> I also got the "XENBUS: Unable to read cpu state" error.
>
> Regards
>
> Olivier
>
> 2010/11/24 Kristoffer Egefelt <dr.fersken@xxxxxxxxx>
>>
>> Hi list,
>>
>> I'm trying out Debian Squeeze with XEN 4.0.1 on a Dell m610 blade.
>> Everything is installed from the squeeze repository, except the dom0
>> kernel, which would not boot on the m610, so I compiled 2.6.32.25 from
>> jeremy 11/11-2010.
>> (http://git.kernel.org/?p=linux/kernel/git/jeremy/xen.git;a=summary)
>>
>> Everything looks good, except these messages, which I've not been able
>> to explain:
>>
>> [   16.651781] XENBUS: Unable to read cpu state
>> [   16.651968] XENBUS: Unable to read cpu state
>> [   16.652156] XENBUS: Unable to read cpu state
>> etc...
>>
>> Removing cpu's work, but when I try to add cpu's:
>>
>> root@node0106:/# xm vcpu-set 15 15
>> [2010-11-24 12:22:49 26321] INFO (XendDomainInfo:1987) Set VCPU count
>> on domain squeezetest01 to 15
>>
>> but cpu's are still in paused mode:
>>
>> Name                                ID  VCPU   CPU State   Time(s) CPU
>> Affinity
>> squeezetest01               15     0    12   -b-      18.9 any cpu
>> squeezetest01               15     1     4   -b-       0.6 any cpu
>> squeezetest01               15     2     6   -b-       0.9 any cpu
>> squeezetest01               15     3    15   -b-       0.8 any cpu
>> squeezetest01               15     4     8   -b-       0.8 any cpu
>> squeezetest01               15     5     -   --p       0.1 any cpu
>> squeezetest01               15     6     -   --p       0.1 any cpu
>> squeezetest01               15     7     -   --p       0.1 any cpu
>>
>> This also shows on the VM:
>>
>> root@squeezetest01:~# cat /sys/devices/system/cpu/offline
>> 5-14
>>
>> On the VM I've tried both the stock squeeze kernel
>> linux-image-2.6.32-5-xen-amd64 and jeremys 2.6.32.25 - both have this
>> problem.
>>
>> Any ideas are greatly appreciated! ;-)
>>
>> Regards
>> Kristoffer
>>
>> _______________________________________________
>> Xen-users mailing list
>> Xen-users@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-users
>
>

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