[CentOS-virt] CentOS 6.2 / kvm / Windows XP sp3 guest crashes repeatedly after a few minutes

Todd And Margo Chester

toddandmargo at gmail.com
Mon Aug 27 22:37:53 UTC 2012

On 08/23/2012 11:55 PM, Bane Ivosev wrote:
> i had the same problem with centos 6.3 on ibm x3650 server. windows xp
> with virtio net just reset with any network load and on host
> /var/log/messages says kernel: kvm: 2889: cpu0 unhandled wrmsr: 0x198
> data 0
> found the solution on proxmox forum.
> just disable jumbo frames on centos host interface ifcfg and ethernet
> switch.
> hope this help someone.

$ ifconfig virbr0
virbr0    Link encap:Ethernet  HWaddr 52:54:00:EB:2D:7B
           inet addr:  Bcast: 
           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0
           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

My MTU=1500, so no jumbo frames.  Rats!

Thank you for the suggestion!


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