| |
|
 |
|
 |
|
|
|
| |
|
|
xen-users
Re: [Xen-users] domU loses network after a while
Nathan
Friess wrote:
Hi,
I have a host running Debian Squeeze with Xen 4.0.1 installed
from the Debian repository. My host is working fine running 10
domUs, except that after some number of days one or more domUs
lose their network interface. In dom0 and domU I'm running
kernel 2.6.32-5-xen-amd64 (PV kernel in Debian repo), and
interfaces are in a bridged config.
In case anyone runs into something similar, I did figure out how
to resolve my issue without having to reboot the domU... which is
a slight improvement I suppose.
Running
xm network-detach domUName 0
Causes eth0 to disappear in the domain, and the following to show
up in dmesg:
net eth0: xennet_release_rx_bufs: fix me for copying receiver.
Then running an xm network-attach will bring eth0 back and
everything will be okay.
I also tried rmmoding xen_netfront in domU before I figured out
the network-detach, but this doesn't help. When modprobing again,
the domU says "eth0: link is not ready". This also causes any
subsequent attempt to network-detach in dom0 to get stuck and
eventually timeout with "Device 0 (vif) could not be
disconnected."
Also, when the vif is stuck, the TX dropped packets shown in dom0
is steadily increasing. It seems that dom0 is having trouble
sending packets to domU because one of the two gets stuck in an
unexpected state. At least doing a network-detach will reset the
state and allow things to run properly again.
Nathan
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
I have a similar issue, however my DomU's seem to get their
connection back after a while automatically, most of the time it
happens when I physically login to the Dom0 :/
|
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
|
|
|
| |
|
Home