[PVE-User] Debian 7 guest losing network

[Alexandre DERUMIER]

Hi,

thi is really strange, I'm running around 1000 debian vms in production,

wheezy with 3.16 kernel or jessie with 3.16, and I never had packets drop like this.

----- Mail original -----
De: "Eneko Lacunza" <elacunza at binovo.es>
À: "proxmoxve" <pve-user at pve.proxmox.com>
Envoyé: Jeudi 1 Octobre 2015 17:33:38
Objet: Re: [PVE-User] Debian 7 guest losing network

Hi, 

Just for the record, I tried with latest backport kernel, but we're 
seeing the problem yet. 

Today it has lost network 3 times (the last one with 3.16 bpo kernel), 
this is a change since the previous about-1-week frequency... 

Cheers 
Eneko 

El 29/09/15 a las 06:11, Alexandre DERUMIER escribió: 
> Hi, 
> 
> Not sure it's related but 
> I remember some network latency problems with kernel 3.2 from wheezy and virtio 
> nics in the past. 
> Using kernel 3.16 from backports fixed the problem. 
> 
> 
> ----- Mail original ----- 
> De: "Eneko Lacunza" <elacunza at binovo.es> 
> À: "proxmoxve" <pve-user at pve.proxmox.com> 
> Envoyé: Lundi 28 Septembre 2015 17:53:29 
> Objet: [PVE-User] Debian 7 guest losing network 
> 
> Hi all, 
> 
> I have a PVE 3.4 node with pve kernel 2.6.32-39 (details below). 
> 
> A quite busy Samba server VM is losing network conectivity about every 
> week since 27th August. 
> This VM can't ping other network elements, and one can't access the 
> Samba in the VM nor ping it when this happens. 
> VM is a security-updated Debian 7. Last apt-get upgrade in the VM before 
> first lost network was on 19th August. 
> 
> Last Proxmox update was on 15th June, so I don't really think this is a 
> Proxmox related issue - but I'm sure there are lot's of Debian 7 VMs out 
> there. Is anyone having this problem? Any idea? 
> 
> I tried both e1000 and virtio network adapters, but VM continues to lose 
> network. I do have other 2 Debian 7 hosts in the cluster (one in the 
> same host), but they are not so busy (and haven't lost network for now). 
> 
> # pveversion -v 
> proxmox-ve-2.6.32: 3.4-156 (running kernel: 2.6.32-39-pve) 
> pve-manager: 3.4-6 (running version: 3.4-6/102d4547) 
> pve-kernel-2.6.32-39-pve: 2.6.32-156 
> pve-kernel-2.6.32-29-pve: 2.6.32-126 
> pve-kernel-2.6.32-34-pve: 2.6.32-140 
> lvm2: 2.02.98-pve4 
> clvm: 2.02.98-pve4 
> corosync-pve: 1.4.7-1 
> openais-pve: 1.1.4-3 
> libqb0: 0.11.1-2 
> redhat-cluster-pve: 3.2.0-2 
> resource-agents-pve: 3.9.2-4 
> fence-agents-pve: 4.0.10-2 
> pve-cluster: 3.0-17 
> qemu-server: 3.4-6 
> pve-firmware: 1.1-4 
> libpve-common-perl: 3.0-24 
> libpve-access-control: 3.0-16 
> libpve-storage-perl: 3.0-33 
> pve-libspice-server1: 0.12.4-3 
> vncterm: 1.1-8 
> vzctl: 4.0-1pve6 
> vzprocps: 2.0.11-2 
> vzquota: 3.1-2 
> pve-qemu-kvm: 2.2-10 
> ksm-control-daemon: 1.1-1 
> glusterfs-client: 3.5.2-1 
> 
> Thanks a lot 
> Eneko 
> 


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