I think that the problem is related to snapshots. I saw that when working with a VM pool, defining some pre-started VMs, then when shutting down a VM then all the devices are created again, which leads to these duplications. Still need to investigate/debug it, on a clean environment, but looks like it is the issue.
Oved ----- Original Message ----- > From: "Mohsen Saeedi" <mohsen.sae...@gmail.com> > To: "Oved Ourfalli" <ov...@redhat.com> > Cc: users@ovirt.org, "Igor Lvovsky" <ilvov...@redhat.com> > Sent: Tuesday, June 5, 2012 6:34:18 PM > Subject: Re: [Users] Ovirt - double use of PCI Address > > > > > > Ok. thanks. I'm trying to do all of the under my home server with > Ovirt. I'll update you about any problem in this case. > > > > Oved Ourfalli <ov...@redhat.com> wrote on Tue, 05 Jun 2012 11:20:03 > -0400 (EDT): > > ----- Original Message ----- > > From: "Mohsen Saeedi" <mohsen.sae...@gmail.com> To: "Oved Ourfalli" > <ov...@redhat.com> Cc: users@ovirt.org , "Igor Lvovsky" > <ilvov...@redhat.com> Sent: Tuesday, June 5, 2012 6:10:30 PM > Subject: Re: [Users] Ovirt - double use of PCI Address > > > > > > Hi Again > > I just defined new server on Ovirt admin portal. I think define > monitor is for desktop virtualization. is it true? > > I switched more than two time between spice and vnc. do you think > switching between vnc and spice is the reason for this problem? And > did the problem occur? > Trying to reproduce it now and I can't, although I seem to have some > VMs with more than one monitor in the vm_device table, but all have > this property set to 1. > I'll update you in case I understand the reason. If you have a solid > reproduction then please share it. > > Thank you, > Oved > > I'm going to delete extra video card. but it's very interesting for > me to know about reason of this problem. > > > > > Thanks > > Oved Ourfalli <ov...@redhat.com> wrote on Tue, 05 Jun 2012 10:16:07 > -0400 (EDT): > > ----- Original Message ----- > > From: "Mohsen Saeedi" <mohsen.sae...@gmail.com> To: "Oved Ourfalli" > <ov...@redhat.com> Cc: users@ovirt.org , "Igor Lvovsky" > <ilvov...@redhat.com> Sent: Tuesday, June 5, 2012 5:06:55 PM > Subject: Re: [Users] Ovirt - double use of PCI Address > > > > > > Thanks. But i didn't add 3 video card! why there is 3 video card?is > it bug? Basically the number of devices should grow or shrink, > according to the number of monitors you choose in the VM properties. > If it has more then it is a bug. > I'll take a look at it. > > can you please explain more about how can i fix this problem? i must > go to the database and then i leave the address as is? i don't > understand last your sentence. > Thanks for you attention. Thinking of it, if you don't want 3 devices > you can just delete two of the three video controllers in order to > workaround the issue. > In order to do that you'll have to do the following in the database: > 1. Find the vm_id of your VM. You can do that by looking at the > vm_static table. > 2. Then, in the vm_device table, find the video devices. > 3. Delete two of the three devices. > > Let me know if you need more help. > > Oved Ourfalli <ov...@redhat.com> wrote on Tue, 05 Jun 2012 10:01:00 > -0400 (EDT): > > ----- Original Message ----- > > From: "Mohsen Saeedi" <mohsen.sae...@gmail.com> To: "Oved Ourfalli" > <ov...@redhat.com> Cc: users@ovirt.org Sent: Tuesday, June 5, 2012 > 4:42:09 PM > Subject: Re: [Users] Ovirt - double use of PCI Address > > > > /*Oved Ourfalli <ov...@redhat.com> */ wrote on Tue, 05 Jun 2012 > 09:29:19 > -0400 (EDT): > > ----- Original Message ----- > > From: "Mohsen Saeedi" <mohsen.sae...@gmail.com> To: users@ovirt.org > Sent: Tuesday, June 5, 2012 4:24:46 PM > Subject: [Users] Ovirt - double use of PCI Address > > > > > > Hi > > I setup ovirt and some other things. I make a virtual machine > (CentOS > 6.2). installed and configured it. then power off it and make a > snapshot and create clone image from it. > > when i trying to start new machine, i got this error: > > 2012-06-05 13:16:15.433+0000: 2375: error : > qemuCollectPCIAddress:743 > : XML error: Attempted double use of PCI Address '0:0:2.0' > > I remove the new machine and try to start old machine. i get the > error again! and i'm enable to start old machine. Can you please > attach the engine.log and vdsm.log files? Yes, I attached both of > them. > > Are you working with the most updated upstream code? I'm working with > build from git - > faef6297b0d01203e88040b2707f9abfbd754d3f. more information is > available > here: http://www.dreyou.org/ovirt/ You can see the issue in vdsm.log > file. You have 3 video cards, all on the same address. > > <video> > <address domain="0x0000" function="0x0" slot="0x02" > type="pci" > bus="0x00"/> > <model heads="1" type="qxl" vram="65536"/> > </video> > <video> > <address domain="0x0000" function="0x0" slot="0x02" > type="pci" > bus="0x00"/> > <model heads="1" type="qxl" vram="65536"/> > </video> > <video> > <address domain="0x0000" function="0x0" slot="0x02" > type="pci" > bus="0x00"/> > <model heads="1" type="qxl" vram="65536"/> > </video> > > Looking at the vdsm code (in vdsm/libvirtvm.py), you can see why such > a thing might happen (also look at the FIXME comment :-) ). > > # FIXME. We have an identification problem here. > # Video card device has not unique identifier, except the > alias > # (but backend not aware to device's aliases). > # So, for now we can only assign the address according to > devices order. > for vc in self._devices[vm.VIDEO_DEVICES]: > if not hasattr(vc, 'address') or not hasattr(vc, > 'alias'): > vc.alias = alias > vc.address = address > break > # Update vm's conf with address > for dev in self.conf['devices']: > if (dev['type'] == vm.VIDEO_DEVICES) and \ > (not dev.get('address') or not dev.get('alias')): > dev['address'] = address > dev['alias'] = alias > break > > The code above is responsible to return the engine core the device > addresses, after libvirt executes the VM, so that they will be > persistent, and used in future executions of the VM. > > Now, the engine core is aware of the alias (as of the exact commit > you used :-) ), but the first time you run the VM, you can get the > addresses wrong, as the alias isn't taken into account. > > Would you like to try to fix this issue? The fix will be to make a > better logic in the code above. Similar examples can be found in > this file, for example in the section that does the same for > controllers. > > If not, let me know and I'll go ahead and fix that. > > In the meantime, you can workaround this issue by going to the > vm_device table, identifying these three devices, leave the address > as is for the first video card of your VM (you probably have > video0/1/2 as aliases), and try to run the VM again. > Now, the engine will pass the one with the correct address as the > first, and libvirt will allocate the right addresses to the other > two. > Hopefully this will be enough. > > Oved > > > > We had an issue with the monitors, in which the order of the > monitor devices is important, as the first one needs to get the > address 0:0:2.0, but that issue was fixed. > Are you using more than one monitor? No, I'm using spice or vnc just > for getting graphic. > > The vdsm.log fill will help a lot here, as it contains the VM's > domain XML file, which will show us all the devices we send > libvirt, and all the addresses that the engine expects to get from > it. > > Any idea? > > Thanks. > > > _______________________________________________ > Users mailing list Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > _______________________________________________ > Users mailing list Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > _______________________________________________ > Users mailing list Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > _______________________________________________ > Users mailing list Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
