[Xen-users] Eth0 and eth1 swapped

[Gabriel Tataranu <tgabi@xxxxxxxxxx>]

Greetings,

Sometimes - at random it seems - ethernet interfaces start swapped (i.e. 
eth0 in domU is connected to xenbr1 instead of being connected to xenbr0 
. Below is the relevant portion of xend.log when such swap takes place.
I'm using Xen 3.0.4_1 on 32bit Linux.

Any ideas ?

----------------------------------------------------------
[2007-03-08 14:29:59 xend.XendDomainInfo 20668] DEBUG 
(XendDomainInfo:94) XendDomainInfo.create(['vm', ['name', 'mp2x1'], 
['memory', 184], ['on_poweroff', 'destroy'], ['on_reboot', 'restart'], 
['on_crash', 'restart'], ['vcpus', 1], ['on_xend_start', 'ignore'], 
['on_xend_stop', 'ignore'], ['image', ['linux', ['kernel', 
'/boot/vmlinuz-2.6.16.33-xenU'], ['root', '/dev/sdc1'], ['args', '3']]], 
['device', ['vbd', ['uname', 'phy:/dev/vservd0/mp2x1_root'], ['dev', 
'sdc1'], ['mode', 'w']]], ['device', ['vbd', ['uname', 
'phy:/dev/vservd0/mp2x1_var'], ['dev', 'sdc2'], ['mode', 'w']]], 
['device', ['vbd', ['uname', 'phy:/dev/vservd0/mp2x1_home'], ['dev', 
'sdc3'], ['mode', 'w']]], ['device', ['vbd', ['uname', 
'phy:/dev/vservd0/mp2x1_swap'], ['dev', 'sdc4'], ['mode', 'w']]], 
['device', ['vif', ['bridge', 'xenbr0'], ['vifname', 'vifm1.0']]], 
['device', ['vif', ['bridge', 'xenbr1'], ['vifname', 'vifm1.1']]]])
[2007-03-08 14:29:59 xend.XendDomainInfo 20668] INFO 
(XendDomainInfo:1194) createDevice: vif : {'bridge': 'xenbr1', 
'vifname': 'vifm1.1', 'uuid': 'dfa9862e-26e5-18d3-368e-15ac9f862fd2'}
[2007-03-08 14:29:59 xend 20668] DEBUG (DevController:115) 
DevController: writing {'backend-id': '0', 'mac': '00:16:3e:36:a6:0d', 
'handle': '0', 'state': '1', 'backend': 
'/local/domain/0/backend/vif/73/0'} to /local/domain/73/device/vif/0.
[2007-03-08 14:29:59 xend 20668] DEBUG (DevController:117) 
DevController: writing {'bridge': 'xenbr1', 'domain': 'mailp2x1', 
'handle': '0', 'uuid': 'dfa9862e-26e5-18d3-368e-15ac9f862fd2', 'script': 
'/etc/xen/scripts/vif-bridge', 'state': '1', 'frontend': 
'/local/domain/73/device/vif/0', 'mac': '00:16:3e:36:a6:0d', 'vifname': 
'vifm1.1', 'online': '1', 'frontend-id': '73'} to 
/local/domain/0/backend/vif/73/0.
[2007-03-08 14:29:59 xend.XendDomainInfo 20668] INFO 
(XendDomainInfo:1194) createDevice: vif : {'bridge': 'xenbr0', 
'vifname': 'vifm1.0', 'uuid': 'fdbe66e8-d6f7-8e85-bd11-9b06760a0b98'}
[2007-03-08 14:29:59 xend 20668] DEBUG (DevController:115) 
DevController: writing {'backend-id': '0', 'mac': '00:16:3e:1d:68:21', 
'handle': '1', 'state': '1', 'backend': 
'/local/domain/0/backend/vif/73/1'} to /local/domain/73/device/vif/1.
[2007-03-08 14:29:59 xend 20668] DEBUG (DevController:117) 
DevController: writing {'bridge': 'xenbr0', 'domain': 'mp2x1', 'handle': 
'1', 'uuid': 'fdbe66e8-d6f7-8e85-bd11-9b06760a0b98', 'script': 
'/etc/xen/scripts/vif-bridge', 'state': '1', 'frontend': 
'/local/domain/73/device/vif/1', 'mac': '00:16:3e:1d:68:21', 'vifname': 
'vifm1.0', 'online': '1', 'frontend-id': '73'} to 
/local/domain/0/backend/vif/73/1.
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