[PVE-User] System hangs / CPU 100% Windows 2008 Server

Martin Schuchmann ms at city-pc.de
Wed Sep 5 12:49:50 CEST 2012

Hi all,

We have a cluster of 3 proxmox servers and one serious problem on a Win 
2008 Std (No R2) guest: Approximately every 5-15 days on different times 
the CPU turns up to 100% and the systems hangs. Today at 11:59:57 am 
this failure occurs the last time. We have had the failure in the past 
also on a sunday, when no one was working on the machine. So we do not 
think, that any software installed on the Win-Server itself causes the 
problem. Also the Windows Event-Logs does not show anything.

The Proxmox syslog says (the nodes 301 and 501 are located at Server 1 
(local storage), the hanging Win2008 machine runs as node 402 on Server 
2 - also in local storage):

Sep 5 11:42:12 promo2 rrdcached[1847]: removing old journal 
Sep 5 11:59:24 promo2 pmxcfs[1869]: [dcdb] notice: data verification 
Sep 5 12:00:01 promo2 /USR/SBIN/CRON[348613]: (root) CMD (vzdump 301 
--quiet 1 --mode snapshot --compress lzo --maxfiles 18 --dumpdir 
Sep 5 12:00:01 promo2 /USR/SBIN/CRON[348614]: (root) CMD (vzdump 501 
--quiet 1 --mode snapshot --compress lzo --maxfiles 12 --dumpdir 
Sep 5 12:00:02 promo2 pmxcfs[1869]: [status] notice: received log
Sep 5 12:00:02 promo2 pmxcfs[1869]: [status] notice: received log
Sep 5 12:00:38 promo2 pmxcfs[1869]: [status] notice: received log
Sep 5 12:05:01 promo2 pmxcfs[1869]: [status] notice: received log

Also in the past there seemed to be a possible connection between 
starting snapshots and killing the node 402.
The destination for the backups is a SFTP Server in another datacenter.

Has anyone experiences with that behaviour?

Thank you in advance!

Regards, Martin


(we did not upgrade yet to the latest kernel, since there have been 
reported some problems with raid controller drivers on the mailing list)

pve-manager: 2.1-1 (pve-manager/2.1/f9b0f63a)
running kernel: 2.6.32-11-pve
proxmox-ve-2.6.32: 2.0-66
pve-kernel-2.6.32-10-pve: 2.6.32-63
pve-kernel-2.6.32-11-pve: 2.6.32-66
pve-kernel-2.6.32-7-pve: 2.6.32-60
lvm2: 2.02.95-1pve2
clvm: 2.02.95-1pve2
corosync-pve: 1.4.3-1
openais-pve: 1.1.4-2
libqb: 0.10.1-2
redhat-cluster-pve: 3.1.8-3
resource-agents-pve: 3.9.2-3
fence-agents-pve: 3.1.7-2
pve-cluster: 1.0-26
qemu-server: 2.0-39
pve-firmware: 1.0-16
libpve-common-perl: 1.0-27
libpve-access-control: 1.0-21
libpve-storage-perl: 2.0-18
vncterm: 1.0-2
vzctl: 3.0.30-2pve5
vzprocps: 2.0.11-2
vzquota: 3.0.12-3
pve-qemu-kvm: 1.0-9
ksm-control-daemon: 1.1-1

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