FC6 + xen kernel peth0&eth1 keep swapping stats in iwconfig

[Simon Bridge]

What is the story with FC6 and Xen?

I have a user who claims the xen kernel installed by default without him knowing about it, and then he gets this issue with wireless... about half the time the iwconfig shows (correctly) that his wireless stats are associated with "eth1" and he can connect, but the other half the time they get associated with "peth0"

(normal eth0 dosn't receive or transmit netowrk traffic - though it does get an ip via dhcp).

This isn't making sense to me, even in the context of xen.

I understand that wireless networking over the bridge is dicey in xen, and is better done through routing. This dosn't seem to be like that - especially considering you'd notice if you'd just installed a VM ... wouldn't you?

He's done a workaround by editing /etc/xen/xend-config.sxp to comment out the line that goes "(network-script network-bridge)"

Now eth0 behaves - but iwconfig sometimes lists his wireless stats next to a device called: "__tmp1804289383" and peth0 dosn't even show up.

i.e.[code]__tmp1804289383 IEEE 802.11b ESSID:"crap"
Mode:Managed Frequency:2.437 GHz Access Point: 00:0F:3D:5B:F72
Bit Rate:11 Mb/s Tx-Power=20 dBm Sensitivity=8/0
Retry limit:7 RTS thrff Fragment thrff
Encryption key:AFAF-AFAF-AFAF-AFAF-AFAF-AFAF-A6 Security mode:restricted
Power Managementff
Link Quality=92/100 Signal level=-36 dBm Noise level=-88 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0[/quote]

wierd huh?
Reference:
http://www.linuxquestions.org/questions/showthread.php?p=2530873#post2530873

[marko]

I think mine installed the xen kernel by default too, but it's pretty easy to
just use yum to install the normal non-xen kernel and edit grub.conf
to default to the non-xen one.

[Simon Bridge]

Originally Posted by marko

I think mine installed the xen kernel by default too, but it's pretty easy to
just use yum to install the normal non-xen kernel and edit grub.conf
to default to the non-xen one.

uname -r shows a xen kernel or not?
and yeah - the peth0 etc comes with xen, no reason for this without it. I wondered if both kernels got installed - so there would be another entry in the grub menue?

But how does this happen? Do folk accidentally burn a xen iso - or is there an install option in anaconda that gets accidentally clicked somewhere?