[pve-devel] Baloon Device is the problem! Re: migration problems since qemu 1.3

[Alexandre DERUMIER]

>>I can even start it with daemonize from shell. Migration works fine. It 
>>just doesn't work when started from PVE. 
This is crazy .... I don't see any difference from starting it from shell or from pve....

And if your remove the balloon device, migration is 100% working, starting from pve ?

just to be sure, can you try to do "info balloon" from human monitor console ? (I would like to see if the balloon driver is correctly working)


----- Mail original ----- 

De: "Stefan Priebe" <s.priebe at profihost.ag> 
À: "Alexandre DERUMIER" <aderumier at odiso.com> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Mardi 25 Décembre 2012 10:05:10 
Objet: Re: [pve-devel] Baloon Device is the problem! Re: migration problems since qemu 1.3 

I can even start it with daemonize from shell. Migration works fine. It 
just doesn't work when started from PVE. 

Stefan 

Am 24.12.2012 15:48, schrieb Alexandre DERUMIER: 
> does it work if you keep device virtio-balloon enabled, 
> 
> but comment in qemuserver.pm 
> 
> line 3005 
> vm_mon_cmd_nocheck($vmid, 'qom-set', 
> path => "machine/peripheral/balloon0", 
> property => "stats-polling-interval", 
> value => 2); 
> 
> 
> and 
> 
> line2081 
> $qmpclient->queue_cmd($vmid, $ballooncb, 'query-balloon'); 
> 
> ? 
> 
> ----- Mail original ----- 
> 
> De: "Alexandre DERUMIER" <aderumier at odiso.com> 
> À: "Stefan Priebe" <s.priebe at profihost.ag> 
> Cc: pve-devel at pve.proxmox.com 
> Envoyé: Lundi 24 Décembre 2012 15:38:13 
> Objet: Re: [pve-devel] Baloon Device is the problem! Re: migration problems since qemu 1.3 
> 
> maybe it's related to qmp queries to balloon driver (for stats) during migration ? 
> 
> 
> 
> ----- Mail original ----- 
> 
> De: "Stefan Priebe" <s.priebe at profihost.ag> 
> À: "Dietmar Maurer" <dietmar at proxmox.com> 
> Cc: "Alexandre DERUMIER" <aderumier at odiso.com>, pve-devel at pve.proxmox.com 
> Envoyé: Lundi 24 Décembre 2012 15:32:52 
> Objet: Baloon Device is the problem! Re: [pve-devel] migration problems since qemu 1.3 
> 
> Hello, 
> 
> it works fine / again if / when i remove the baloon pci device. 
> 
> If i remove this line everything is fine again! 
> -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 
> 
> Greets 
> Stefan 
> Am 24.12.2012 15:05, schrieb Stefan Priebe: 
>> 
>> Am 24.12.2012 14:08, schrieb Dietmar Maurer: 
>>>> virtio0: 
>>>> cephkvmpool1:vm-105-disk- 
>>>> 1,iops_rd=215,iops_wr=155,mbps_rd=130,mbps_wr=90,size=20G 
>>> 
>>> Please can you also test without ceph? 
>> 
>> The same. I now also tried a debian netboot cd (6.0.5) but then 32bit 
>> doesn't work too. I had no disks attached at all. 
>> 
>> I filled the tmpfs ramdisk under /dev with 
>> dd if=/dev/urandom of=/dev/myfile bs=1M count=900 
>> 
>> Greets, 
>> Stefan 
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