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action #35895

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[os-autoinst-openvswitch][theory] problem with assigining VLANs tags - more testsuites are using the same VLAN?

Added by thehejik over 6 years ago. Updated about 6 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
Category:
-
Target version:
Start date:
2018-05-04
Due date:
% Done:

0%

Estimated time:

Description

Anton noticed an issue when support_server failed due network problems - ss leased 10.0.2.22 most probably from different ss in the same VLAN.

https://openqa.suse.de/tests/1667461 failed support_server oqw3 tap4 3.5. 20:33(+2 on worker)
https://openqa.suse.de/tests/1667530 parallel_failed master oqw7 tap12 3.5. 20:33
https://openqa.suse.de/tests/1667523 parallel_failed slave oqw6 tap0 3.5. 20:33

So I did a check on oqw{3,7,6} and found a potential issue that on oqw7 we have more than one tap device assigned to VLAN tag=50.

Anton has added OVS_DEBUG=1 to his testsuites so with another occurrence of this issue we can debug it in autoinst-log.txt (and see if some foreign taps are assigned to the same VLAN).

note to myself ... determine VLAN tag, see test start time => sudo journalctl -u os-autoinst-openvswitch | grep -e "tag.*50"

thehejik@openqaworker7:~> sudo journalctl -u os-autoinst-openvswitch | grep -e "tag.*50"
kvě 03 22:29:50 openqaworker7 ovs-vsctl[16033]: ovs|00001|vsctl|INFO|Called as ovs-vsctl set port tap12 tag=50
kvě 03 22:29:51 openqaworker7 ovs-vsctl[16058]: ovs|00001|vsctl|INFO|Called as ovs-vsctl set port tap13 tag=50
kvě 03 22:33:18 openqaworker7 ovs-vsctl[16899]: ovs|00001|vsctl|INFO|Called as ovs-vsctl set port tap12 tag=50
kvě 03 22:51:39 openqaworker7 ovs-vsctl[24378]: ovs|00001|vsctl|INFO|Called as ovs-vsctl set port tap9 tag=50
kvě 03 22:52:32 openqaworker7 ovs-vsctl[24896]: ovs|00001|vsctl|INFO|Called as ovs-vsctl remove port tap9 tag 50

Related problem can be that VLAN tags are probably not removed when the test fail.

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