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

[Todd And Margo Chester]

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:192.168.122.1  Bcast:192.168.122.255 
Mask:255.255.255.0
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           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!

-T