[pve-devel] Local Disk Migration and ide controller

[Alexandre DERUMIER]

Also, could it be related to slowdown that a user have reported ?

(maybe device_del take some seconds to execute)

----- Mail original -----
De: "aderumier" <aderumier at odiso.com>
À: "pve-devel" <pve-devel at pve.proxmox.com>
Envoyé: Lundi 10 Juillet 2017 11:53:05
Objet: Re: [pve-devel] Local Disk Migration and ide controller

>>I will create a bug report for this ide problem so the issue is not 
>>forgotten and assign it to Fabian. 

how does it work if guest don't support hotplug ? (missing pci_hotplug driver for example). 
we can't detect that. 


----- Mail original ----- 
De: "e kasper" <e.kasper at proxmox.com> 
À: "pve-devel" <pve-devel at pve.proxmox.com> 
Envoyé: Lundi 10 Juillet 2017 11:36:45 
Objet: Re: [pve-devel] Local Disk Migration and ide controller 

On 07/10/2017 11:06 AM, Alexandre DERUMIER wrote: 
> Hi, 
> 
> I don't remember to have implemedted this device_del. 
> 
> I don't see why need device_del on source .... 
> (That mean that we can't live migration disk without hotplug support) 
> 
> 
> if nbd reference on source is a problem for vm stop, maybe simply 
> killing the qemu process at the end of the migration should works ? 

you're right looking at the git history this code comes from Fabian. 

If we would like to force the shutdown, we could indeed 
add the force parameter to the vm_stop calls at line 926 

my $force_stop = 1; 

eval { PVE::QemuServer::vm_stop($self->{storecfg}, $vmid, 1, 1, undef, 
undef, $force_stop); }; 

however I am not confident enough to implement this since this code path 
is used for all migrations 

I will create a bug report for this ide problem so the issue is not 
forgotten and assign it to Fabian. 

Emmanuel 



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