[Xen-users] limts on per-vm vifs?

["Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx>]

I was trying to see how many vifs I could create per VM.

When I tried to set it up by setting nics=6 and defining the values for each of the nics using the vif commands, I can see the DomU acknowledging 6 nics at startup(eth0-eth5). However, it is unable to setup the nics 4, 5, and 6( eth3-5).

The following messages appeared on the /var/log/messages on Dom0.

From this, it seems that the six vifs were created and then the last 3 were taken offline. I have marked the part where this happens with a line.

When I try to manually look at eth3-5 on the domu, I get the message  "error fetching interface information, device not found".

 

Has anyone seen this kind of behaviour before?

 

thanks

Raj

 

 

Dec 28 16:05:50 m0078 xinetd[11125]: removing time
Dec 28 16:05:50 m0078 xinetd[11125]: removing uucp
Dec 28 16:05:50 m0078 xinetd[11125]: removing vnc2
Dec 28 16:05:50 m0078 xinetd[11125]: removing vnc3
Dec 28 16:05:50 m0078 xinetd[11125]: removing vnchttpd2
Dec 28 16:05:50 m0078 xinetd[11125]: removing vnchttpd3
Dec 28 16:05:50 m0078 xinetd[11125]: xinetd Version 2.3.13 started with libwrap loadavg options compiled in.
Dec 28 16:05:50 m0078 xinetd[11125]: Started working: 3 available services
Dec 28 16:07:59 m0078 kdm: m0078.site:1[11887]: pam_unix2: session started for user root, service xdm
Dec 28 16:10:58 m0078 kdm[10719]: Cannot convert Internet address 4.0.255.255 to host name
Dec 28 16:16:32 m0078 logger: /etc/xen/scripts/block: add XENBUS_PATH=backend/vbd/1/2050
Dec 28 16:16:32 m0078 logger: /etc/xen/scripts/vif-bridge: online XENBUS_PATH=backend/vif/1/1
Dec 28 16:16:32 m0078 logger: /etc/xen/scripts/block: add XENBUS_PATH=backend/vbd/1/2066
Dec 28 16:16:32 m0078 logger: /etc/xen/scripts/vif-bridge: online XENBUS_PATH=backend/vif/1/0
Dec 28 16:16:32 m0078 logger: /etc/xen/scripts/vif-bridge: online XENBUS_PATH=backend/vif/1/2
Dec 28 16:16:32 m0078 logger: /etc/xen/scripts/vif-bridge: online XENBUS_PATH=backend/vif/1/3
Dec 28 16:16:32 m0078 logger: /etc/xen/scripts/vif-bridge: online XENBUS_PATH=backend/vif/1/5
Dec 28 16:16:32 m0078 logger: /etc/xen/scripts/vif-bridge: online XENBUS_PATH=backend/vif/1/4
Dec 28 16:16:33 m0078 logger: /etc/xen/scripts/vif-bridge: Successful vif-bridge online for vif1.1, bridge xenbr0.
Dec 28 16:16:33 m0078 logger: /etc/xen/scripts/vif-bridge: Writing backend/vif/1/1/hotplug-status connected to xenstore.
Dec 28 16:16:33 m0078 logger: /etc/xen/scripts/vif-bridge: Successful vif-bridge online for vif1.0, bridge xenbr0.
Dec 28 16:16:33 m0078 logger: /etc/xen/scripts/vif-bridge: Writing backend/vif/1/0/hotplug-status connected to xenstore.
Dec 28 16:16:33 m0078 kernel: device vif1.0 entered promiscuous mode
Dec 28 16:16:33 m0078 logger: /etc/xen/scripts/vif-bridge: Successful vif-bridge online for vif1.5, bridge xenbr0.
Dec 28 16:16:33 m0078 logger: /etc/xen/scripts/vif-bridge: Writing backend/vif/1/5/hotplug-status connected to xenstore.
Dec 28 16:16:33 m0078 logger: /etc/xen/scripts/vif-bridge: Successful vif-bridge online for vif1.3, bridge xenbr0.
Dec 28 16:16:33 m0078 logger: /etc/xen/scripts/vif-bridge: Writing backend/vif/1/3/hotplug-status connected to xenstore.
Dec 28 16:16:33 m0078 logger: /etc/xen/scripts/vif-bridge: Successful vif-bridge online for vif1.4, bridge xenbr0.
Dec 28 16:16:33 m0078 logger: /etc/xen/scripts/vif-bridge: Writing backend/vif/1/4/hotplug-status connected to xenstore.
Dec 28 16:16:33 m0078 logger: /etc/xen/scripts/vif-bridge: Successful vif-bridge online for vif1.2, bridge xenbr0.
Dec 28 16:16:33 m0078 logger: /etc/xen/scripts/vif-bridge: Writing backend/vif/1/2/hotplug-status connected to xenstore.
Dec 28 16:16:33 m0078 kernel: xenbr0: port 3(vif1.0) entering learning state
Dec 28 16:16:33 m0078 kernel: device vif1.5 entered promiscuous mode
Dec 28 16:16:33 m0078 kernel: xenbr0: port 4(vif1.5) entering learning state
Dec 28 16:16:33 m0078 kernel: xenbr0: topology change detected, propagating
Dec 28 16:16:33 m0078 kernel: xenbr0: port 3(vif1.0) entering forwarding state
Dec 28 16:16:33 m0078 kernel: xenbr0: topology change detected, propagating
Dec 28 16:16:33 m0078 kernel: xenbr0: port 4(vif1.5) entering forwarding state
Dec 28 16:16:33 m0078 kernel: device vif1.1 entered promiscuous mode
Dec 28 16:16:33 m0078 kernel: xenbr0: port 5(vif1.1) entering learning state
Dec 28 16:16:33 m0078 kernel: xenbr0: topology change detected, propagating
Dec 28 16:16:33 m0078 kernel: xenbr0: port 5(vif1.1) entering forwarding state
Dec 28 16:16:33 m0078 kernel: device vif1.3 entered promiscuous mode
Dec 28 16:16:33 m0078 kernel: xenbr0: port 6(vif1.3) entering learning state
Dec 28 16:16:33 m0078 kernel: xenbr0: topology change detected, propagating
Dec 28 16:16:33 m0078 kernel: xenbr0: port 6(vif1.3) entering forwarding state
Dec 28 16:16:33 m0078 kernel: ip_tables: (C) 2000-2002 Netfilter core team
Dec 28 16:16:33 m0078 kernel: device vif1.4 entered promiscuous mode
Dec 28 16:16:33 m0078 kernel: xenbr0: port 7(vif1.4) entering learning state
Dec 28 16:16:33 m0078 kernel: xenbr0: topology change detected, propagating
Dec 28 16:16:33 m0078 kernel: xenbr0: port 7(vif1.4) entering forwarding state
Dec 28 16:16:33 m0078 kernel: device vif1.2 entered promiscuous mode
Dec 28 16:16:33 m0078 kernel: xenbr0: port 8(vif1.2) entering learning state
Dec 28 16:16:33 m0078 kernel: xenbr0: topology change detected, propagating
Dec 28 16:16:33 m0078 kernel: xenbr0: port 8(vif1.2) entering forwarding state
Dec 28 16:16:34 m0078 logger: /etc/xen/scripts/block: Writing backend/vbd/1/2050/node /dev/loop0 to xenstore.
Dec 28 16:16:34 m0078 logger: /etc/xen/scripts/block: Writing backend/vbd/1/2050/physical-device 7:0 to xenstore.
Dec 28 16:16:34 m0078 logger: /etc/xen/scripts/block: Writing backend/vbd/1/2050/hotplug-status connected to xenstore.
Dec 28 16:16:34 m0078 logger: /etc/xen/scripts/block: Writing backend/vbd/1/2066/physical-device 8:12 to xenstore.
Dec 28 16:16:34 m0078 logger: /etc/xen/scripts/block: Writing backend/vbd/1/2066/hotplug-status connected to xenstore.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Dec 28 16:16:35 m0078 logger: /etc/xen/scripts/vif-bridge: offline XENBUS_PATH=backend/vif/1/3
Dec 28 16:16:35 m0078 /sbin/hotplug[13313]: xenstore-rm: could not remove path error/backend/vif/1/4
Dec 28 16:16:35 m0078 /sbin/hotplug[13315]: xenstore-rm: could not remove path error/backend/vif/1/5
Dec 28 16:16:35 m0078 logger: /etc/xen/scripts/vif-bridge: Successful vif-bridge offline for vif1.3, bridge xenbr0.
Dec 28 16:16:35 m0078 kernel: device vif1.3 left promiscuous mode
Dec 28 16:16:35 m0078 kernel: xenbr0: port 6(vif1.3) entering disabled state
Dec 28 16:16:35 m0078 kernel: xenbr0: port 6(vif1.3) entering disabled state
Dec 28 16:16:35 m0078 /sbin/hotplug[13311]: xenstore-rm: could not remove path error/backend/vif/1/3
Dec 28 16:16:35 m0078 logger: /etc/xen/scripts/vif-bridge: offline XENBUS_PATH=backend/vif/1/4
Dec 28 16:16:35 m0078 logger: /etc/xen/scripts/vif-bridge: offline XENBUS_PATH=backend/vif/1/5
Dec 28 16:16:35 m0078 kernel: device vif1.5 left promiscuous mode
Dec 28 16:16:35 m0078 kernel: xenbr0: port 4(vif1.5) entering disabled state
Dec 28 16:16:35 m0078 kernel: xenbr0: port 4(vif1.5) entering disabled state
Dec 28 16:16:35 m0078 logger: /etc/xen/scripts/vif-bridge: Successful vif-bridge offline for vif1.5, bridge xenbr0.
Dec 28 16:16:35 m0078 kernel: device vif1.4 left promiscuous mode
Dec 28 16:16:35 m0078 kernel: xenbr0: port 7(vif1.4) entering disabled state
Dec 28 16:16:35 m0078 logger: /etc/xen/scripts/vif-bridge: Successful vif-bridge offline for vif1.4, bridge xenbr0.
Dec 28 16:16:35 m0078 kernel: xenbr0: port 7(vif1.4) entering disabled state
Dec 28 16:16:37 m0078 ifup: No configuration found for vif1.0
Dec 28 16:16:37 m0078 ifup: No configuration found for vif1.2
Dec 28 16:16:37 m0078 ifup: No configuration found for vif1.4
Dec 28 16:16:37 m0078 ifup: No configuration found for vif1.5
Dec 28 16:16:38 m0078 ifup: No configuration found for vif1.3
Dec 28 16:16:38 m0078 ifup: No configuration found for vif1.1

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