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xen-api
RE: [Xen-API] Re: Project KRONOS - Networking
The failure of qemu-ifup is mostly likely key here. If the tap device is not initialized then, when qemu-dm is lauched, it will fail to open the tap, hence the network device model will fail to initialize, hence it will exit prematurely. Paul From: xen-api-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-api-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Sébastien Riccio
Sent: 02 September 2011 01:44
To: xen-api@xxxxxxxxxxxxxxxxxxx
Cc: Jonathan Ludlam
Subject: [Xen-API] Re: Project KRONOS - Networking On 01.09.2011 22:45, Jonathan Ludlam wrote: Hi Sebastien, qemu should (theoretically) be logging to syslog - has it dumped anything interesting in there at all? On 1 Sep 2011, at 14:29, Sébastien Riccio wrote:
<xensource.txt>
Hi Jonathan,
Thanks for pointing that out.
Here is a transcript of an interesting part of syslog while trying to launche a network attached qemu vm:
"/etc/xen/scripts/qemu-ifup: could not launch network script" and "Could not initialize device 'tap'" seems
to be quite revelant, i'll try to look what the script tries to do.
Cheers,
Sébastien
Sep 2 02:41:26 xen-blade13 scripts-vif: Called as "online type_if=vif" domid:15 devid:0 mode:openvswitch
Sep 2 02:41:26 xen-blade13 fe: qemu-dm-15[12453]: domid: 15
Sep 2 02:41:26 xen-blade13 scripts-vif: Setting vif15.0 MTU 1500
Sep 2 02:41:26 xen-blade13 fe: qemu-dm-15[12453]: -c config qemu network with xen bridge for
Sep 2 02:41:26 xen-blade13 fe: qemu-dm-15[12453]: tap15.0 xapi2
Sep 2 02:41:26 xen-blade13 fe: qemu-dm-15[12453]: can't add tap15.0 to bridge xapi2: Operation not supported
Sep 2 02:41:26 xen-blade13 fe: qemu-dm-15[12453]: /etc/xen/scripts/qemu-ifup: could not launch network script
Sep 2 02:41:26 xen-blade13 fe: qemu-dm-15[12453]: Could not initialize device 'tap'
Sep 2 02:41:26 xen-blade13 scripts-vif: Adding vif15.0 to xapi2 with address fe:ff:ff:ff:ff:ff
Sep 2 02:41:26 xen-blade13 logger: /etc/xen/scripts/vif-bridge: add type_if=tap XENBUS_PATH=
Sep 2 02:41:26 xen-blade13 fe: 12453 (/usr/lib/xen-common/xapi/libexec/qemu-dm-wrapper 15 -d 15 -m 1536 -boot dc -s...) exitted with code 1
Sep 2 02:41:26 xen-blade13 scripts-vif: Failed to ip link set vif15.0 address fe:ff:ff:ff:ff:ff
Sep 2 02:41:26 xen-blade13 scripts-vif: vif15.0 external-ids:"xs-vm-uuid"="7ef51a1e-2a0a-5ef4-50f6-618cbb251543"
Sep 2 02:41:26 xen-blade13 scripts-vif: vif15.0 external-ids:"xs-vif-uuid"="ea160a73-36a6-cfdc-dcf9-3083653d917b"
Sep 2 02:41:26 xen-blade13 scripts-vif: vif15.0 external-ids:"xs-network-uuid"="65c59465-b20d-f640-01bd-c78e83ae7b72"
Sep 2 02:41:26 xen-blade13 scripts-vif: vif15.0 external-ids:"attached-mac"="3a:97:29:2f:c0:aa"
Sep 2 02:41:26 xen-blade13 scripts-vif: /usr/bin/ovs-vsctl --timeout=30 -- --if-exists del-port vif15.0 -- add-port xapi2 vif15.0 -- set interface vif15.0 external-ids:"xs-vm-uuid"="7ef51a1e-2a0a-5ef4-50f6-618cbb251543"#012-- set interface vif15.0 external-ids:"xs-vif-uuid"="ea160a73-36a6-cfdc-dcf9-3083653d917b"#012-- set interface vif15.0 external-ids:"xs-network-uuid"="65c59465-b20d-f640-01bd-c78e83ae7b72"#012-- set interface vif15.0 external-ids:"attached-mac"="3a:97:29:2f:c0:aa"
Sep 2 02:41:26 xen-blade13 ovs-vsctl: 00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=30 -- --if-exists del-port vif15.0 -- add-port xapi2 vif15.0 -- set interface vif15.0 "external-ids:\"xs-vm-uuid\"=\"7ef51a1e-2a0a-5ef4-50f6-618cbb251543\"" -- set interface vif15.0 "external-ids:\"xs-vif-uuid\"=\"ea160a73-36a6-cfdc-dcf9-3083653d917b\"" -- set interface vif15.0 "external-ids:\"xs-network-uuid\"=\"65c59465-b20d-f640-01bd-c78e83ae7b72\"" -- set interface vif15.0 "external-ids:\"attached-mac\"=\"3a:97:29:2f:c0:aa\""
Sep 2 02:41:26 xen-blade13 kernel: [46644.650044] device vif15.0 entered promiscuous mode
Sep 2 02:41:26 xen-blade13 kernel: [46644.689221] ADDRCONF(NETDEV_UP): vif15.0: link is not ready
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