Re: [ovirt-users] PCI Passthrough problem

Hi i'm coworker of Mr Chapelle, Thank you for your reply. so if i understand we need to "downgrade" our ovirt engine which is in version 3.6.6.x to version 3.6.5? But how can we do that?

Lionel Caignec. ----- Mail original ----- De: "Martin Polednik" <mpolednik(a)redhat.com&gt; À: "chapelle" <chapelle(a)cines.fr&gt; Cc: "users" <users(a)ovirt.org&gt;, "honvault" <honvault(a)cines.fr&gt; Envoyé: Mardi 7 Juin 2016 17:11:10 Objet: Re: [ovirt-users] PCI Passthrough problem On 07/06/16 16:50 +0200, Jérôme Chapelle wrote: >We are no more able to give a pci device to one VM. >Here is the process we used to assign one device to one VM: >- Click on the VM, and then on the tab "Host devices" >- In the tab, click on "pin to host" and select the host that will give the pci device >- Click on "add device", in the window appear all the pci devices: choose the pci card you wish (ex. pci_0000_83_00_0 pci_0000_83_00_1) and then click on the gray arrow to assign this device to the VM >- Click on ok >- boot the VM. >The problem is that in the window that appears, there is not a single pci device listed (there should be many listed). >I checked first: the IOMMU setting is set in the kernel. > >Our environment: >We have two HV running CentOs7. >Each of them have three fiber channel cards. First card is connected to a disk array, second one to the first tape library and third one to another tape library. >We used to give the second card to a VM1, and the third card to another VM2. Both VMs ran on one HV or on the other in the past: everything was fine. >What happened: >Today we add to upgrade one of the HV (HV1). Both VMs ran on this HV1. We upgraded then restarted the HV1. >Then I edited the second VM2 in order to remove card from HV1. Then I tried to add the card from HV2 to this VM2: the list of "host devices" is empty. >I started the VM1: it works fine (I didn't change anything on it). Hello! I'm afraid you have hit the bug [1]. For hosts where you need host devices, the best solution is most likely not upgrading them to 3.6.6 for now. [1] https://bugzilla.redhat.com/show_bug.cgi?id=1341299 > >-- > > > > > > Jérôme Chapelle > C entre I nformatique N ational de l' E nseignement S upérieur >950 rue de Saint Priest >34 097 M ONTPELLIER Cedex 5 > > Tél. 04 67 14 14 14 > eMail chapelle(a)cines.fr > >_______________________________________________ >Users mailing list &gt;Users(a)ovirt.org >http://lists.ovirt.org/mailman/listinfo/users _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users