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Re: [Xen-users] xm vcpu-set won't add cpu's...
- To: Kristoffer Egefelt <dr.fersken@xxxxxxxxx>
- From: Olivier Hanesse <olivier.hanesse@xxxxxxxxx>
- Date: Wed, 24 Nov 2010 13:08:06 +0100
- Cc: xen-users@xxxxxxxxxxxxxxxxxxx
- Delivery-date: Wed, 24 Nov 2010 04:09:34 -0800
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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
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