On 8 Sep 2023, at 13:55, Laurent Coloby via discuss wrote:
> Hello Michal and Ilya > > Thank you for your answser > > You are right > With trace I can see is it due to permission. > > All the commands are send with : sudo > > What do you mean by " because you're starting OVS manually from a root user, > IIUC" > > Sorry I'm a beginner in Linux > > For starting, I enter > > sudo ovs-ctl start > > To launch VM, : > sudo virsh start VM > > I have create ovs bridge with sudo , also Here is a link to what I normally do under Fedora/RHEL. However, looking at your configuration, you name the bridge in libvirt, ovsbr. But your ovs show command does not have that bridge created. > > Regards > > > > > Internal > -----Message d'origine----- > De : Ilya Maximets <i.maxim...@ovn.org> > Envoyé : jeudi 7 septembre 2023 16:49 > À : Michal Prívozník <mpriv...@redhat.com>; Laurent Coloby > <laurent.col...@se.com>; b...@openvswitch.org > Cc : i.maxim...@ovn.org > Objet : Re: [ovs-discuss] open vswitch and libvirt > > [External email: Use caution with links and attachments] > > ________________________________ > > > > On 9/7/23 16:38, Michal Prívozník via discuss wrote: >> On 9/6/23 15:26, Laurent Coloby via discuss wrote: >>> Hello support >>> >>> I'm blocked on a basic issue >>> >>> I use libvirt / KVM with unbutu >>> >>> >>> I just want to launch a virtual Machine with a connection to OVS >>> >>> With command virsh edit VM , I modify to be conform to your >>> recommendation >>> https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoc >>> s.openvswitch.org%2Fen%2Fstable%2Fhowto%2Flibvirt%2F&data=05%7C01%7Cl >>> aurent.coloby%40se.com%7Ca0388c4bc678452caacf08dbafb18316%7C6e51e1adc >>> 54b4b39b5980ffe9ae68fef%7C0%7C0%7C638296949974962097%7CUnknown%7CTWFp >>> bGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6M >>> n0%3D%7C2000%7C%7C%7C&sdata=GA3u82MxAGL7AViinZgd4WMbna2f6QK6U%2FVvvAk >>> 2wPo%3D&reserved=0 >>> >>> [cid:image001.png@01D9E0D3.27E6D1E0] >>> >>> >>> And when I start the VM , I have always same issue >>> >>> [cid:image002.png@01D9E0D6.2AE7D580] >> >> I'm not sure what this list policy is, but if this were libvir-list >> I'd ask you to NOT take a screenshots of a text only to place them >> into a text later. > > +1 > Sometimes pictures are also fully stripped from the mail list and so people > will not even see what you wanted to show. > >> >>> >>> On Internet , I have seen several people with same issue, but not >>> fond any explanation >>> >>> Please could you help me on this problem ? >>> Thank you in advance >>> >> >> If you enable libvirt debug logs [1] then you should be able to see >> what command is libvirt actually executing to add the TAP device into >> the bridge. The code that drives what arguments are passed to >> 'ovs-vsctl --may-exist add-port ...' depend on a lot of config knobs >> [2]. But in this case it should be fairly trivial command. >> >> Anyway, if you turn on libvirt debug logs you should be able to see >> what command was executed (and perhaps even if it reported any error - >> if it did libvirt should have passed on that error message, so maybe >> there's an improvement potential on libvirt side too). > > +1 as well. Please, look at libvirt logs to see what is going on. > > But if I were guessing, I'd say that you may have an issue with permissions, > because you're starting OVS manually from a root user, IIUC. Libvirt daemon > likely doesn't have permissions to access sockets created by ovs-vswitchd in > this case. > >> >> 1: >> https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flibv >> irt.org%2Fkbase%2Fdebuglogs.html&data=05%7C01%7Claurent.coloby%40se.co >> m%7Ca0388c4bc678452caacf08dbafb18316%7C6e51e1adc54b4b39b5980ffe9ae68fe >> f%7C0%7C0%7C638296949974962097%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjA >> wMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sd >> ata=EIh5OutptVH5558mpNFiOP2qJpBmzfDXHjo9GxqfTx8%3D&reserved=0 >> 2: >> https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitl >> ab.com%2Flibvirt%2Flibvirt%2F-%2Fblob%2Fmaster%2Fsrc%2Futil%2Fvirnetde >> vopenvswitch.c%3Fref_type%3Dheads%23L130&data=05%7C01%7Claurent.coloby >> %40se.com%7Ca0388c4bc678452caacf08dbafb18316%7C6e51e1adc54b4b39b5980ff >> e9ae68fef%7C0%7C0%7C638296949974962097%7CUnknown%7CTWFpbGZsb3d8eyJWIjo >> iMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C% >> 7C%7C&sdata=izbxWac5SC5p7KTQR6lpGA14M1BJtS0mpo6nXfHXhuI%3D&reserved=0 >> >> Michal > > _______________________________________________ > discuss mailing list > disc...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
