Re: issues with vm after upgrade

Sent: Wednesday, August 11, 2021 at 4:13 PM From: "Martin Kletzander" <mkletzan(a)redhat.com&gt; To: "daggs" <daggs(a)gmx.com&gt; Cc: dan(a)berrange.com, libvirt-users(a)redhat.com Subject: Re: issues with vm after upgrade On Wed, Aug 11, 2021 at 03:09:34PM +0200, daggs wrote: >Greetings Martin, > >> Sent: Wednesday, August 11, 2021 at 10:14 AM >> From: "Martin Kletzander" <mkletzan(a)redhat.com&gt; >> To: "daggs" <daggs(a)gmx.com&gt; >> Cc: dan(a)berrange.com, libvirt-users(a)redhat.com >> Subject: Re: issues with vm after upgrade >> >> On Tue, Aug 10, 2021 at 09:21:00PM +0200, daggs wrote: >> >Greetings Martin, Dan >> > >> >> Sent: Wednesday, August 04, 2021 at 1:54 PM >> >> From: "daggs" <daggs(a)gmx.com&gt; >> >> To: "Martin Kletzander" <mkletzan(a)redhat.com&gt; >> >> Cc: libvirt-users(a)redhat.com, dan(a)berrange.com >> >> Subject: Re: issues with vm after upgrade >> >> >> >> Greetings Martin, >> >> >> >> > Sent: Wednesday, August 04, 2021 at 11:52 AM >> >> > From: "Martin Kletzander" <mkletzan(a)redhat.com&gt; >> >> > To: "daggs" <daggs(a)gmx.com&gt; >> >> > Cc: libvirt-users(a)redhat.com, dan(a)berrange.com >> >> > Subject: Re: issues with vm after upgrade >> >> > >> >> > On Wed, Aug 04, 2021 at 10:30:29AM +0200, daggs wrote: >> >> > >Greetings Martin , >> >> > > >> >> > >> Sent: Wednesday, August 04, 2021 at 11:11 AM >> >> > >> From: "Martin Kletzander" <mkletzan(a)redhat.com&gt; >> >> > >> To: "daggs" <daggs(a)gmx.com&gt; >> >> > >> Cc: libvirt-users(a)redhat.com, dan(a)berrange.com >> >> > >> Subject: Re: issues with vm after upgrade >> >> > >> >> >> > >> On Tue, Aug 03, 2021 at 08:47:20PM +0200, daggs wrote: >> >> > >> >> Sent: Tuesday, August 03, 2021 at 6:51 PM >> >> > >> >> From: "daggs" <daggs(a)gmx.com&gt; >> >> > >> >> To: dan(a)berrange.com >> >> > >> >> Cc: "Martin Kletzander" <mkletzan(a)redhat.com&gt;, libvirt-users(a)redhat.com >> >> > >> >> Subject: Re: issues with vm after upgrade >> >> > >> >> >> >> > >> >> Greetings Daniel, >> >> > >> >> >> >> > >> >> > Sent: Tuesday, August 03, 2021 at 6:39 PM >> >> > >> >> > From: "Daniel P. Berrange" <dan(a)berrange.com&gt; >> >> > >> >> > To: "daggs" <daggs(a)gmx.com&gt; >> >> > >> >> > Cc: "Martin Kletzander" <mkletzan(a)redhat.com&gt;, libvirt-users(a)redhat.com >> >> > >> >> > Subject: Re: issues with vm after upgrade >> >> > >> >> > >> >> > >> >> > On Tue, Aug 03, 2021 at 05:34:53PM +0200, daggs wrote: >> >> > >> >> > > > Sent: Tuesday, August 03, 2021 at 6:29 PM >> >> > >> >> > > > From: "Daniel P. Berrange" <dan(a)berrange.com&gt; >> >> > >> >> > > > To: "daggs" <daggs(a)gmx.com&gt; >> >> > >> >> > > > Cc: "Martin Kletzander" <mkletzan(a)redhat.com&gt;, libvirt-users(a)redhat.com >> >> > >> >> > > > Subject: Re: issues with vm after upgrade >> >> > >> >> > > > >> >> > >> >> > > > On Tue, Aug 03, 2021 at 05:21:52PM +0200, daggs wrote: >> >> > >> >> > > > > Greetings Daniel, >> >> > >> >> > > > > >> >> > >> >> > > > > > Sent: Tuesday, August 03, 2021 at 4:12 PM >> >> > >> >> > > > > > From: "Daniel P. Berrange" <dan(a)berrange.com&gt; >> >> > >> >> > > > > > To: "daggs" <daggs(a)gmx.com&gt; >> >> > >> >> > > > > > Cc: "Martin Kletzander" <mkletzan(a)redhat.com&gt;, libvirt-users(a)redhat.com >> >> > >> >> > > > > > Subject: Re: issues with vm after upgrade >> >> > >> >> > > > > > >> >> > >> >> > > > > > The <audio> element just refers to the *host* backend used for audio >> >> > >> >> > > > > > playback. It would not affect guest hardware. Further, this has always >> >> > >> >> > > > > > existed - it just wasn't exposed in the XML previously. >> >> > >> >> > > > > > >> >> > >> >> > > > > > >> >> > >> >> > > > > >> >> > >> >> > > > > the upgrade changed something, here is the qemu cmd before the upgrade: https://dpaste.com/F2N5T8CT8 >> >> > >> >> > > > > here is after https://dpaste.com/F2N5T8CT8 >> >> > >> >> > > > >> >> > >> >> > > > Those links are both the same I'm afraid >> >> > >> >> > > > >> >> > >> >> > > >> >> > >> >> > > Duh! my bad! >> >> > >> >> > > good log: http://dpaste.com/F2N5T8CT8 >> >> > >> >> > > bad log: http://dpaste.com/6ECUHD2J8 >> >> > >> >> > >> >> > >> >> > The new log has a CLI flag >> >> > >> >> > >> >> > >> >> > -audiodev id=audio1,driver=none >> >> > >> >> > >> >> > >> >> > but the old log has an env variable >> >> > >> >> > >> >> > >> >> > QEMU_AUDIO_DRV=none >> >> > >> >> > >> >> > >> >> > which should be functionally identical, as QEMU will parse them both >> >> > >> >> > to the same internal config. >> >> > >> >> > >> >> > >> >> > The obvious difference in the logs which can cause your guest to fail >> >> > >> >> > is the different QEMU version. The old log shows QEMU 5.2.0, while the >> >> > >> >> > new log shows QEMU 6.0.0 >> >> > >> >> > >> >> > >> >> >> >> > >> >> thanks for the help, I went to look why the efi fw and found out that the nvram entry in /etc/libvirt/eqmu.conf was deleted upon update. >> >> > >> >> I'm sure fixing this will solve he boot issue, hopefully audio issue too. >> >> > >> >> >> >> > >> >> Thanks, >> >> > >> >> >> >> > >> >> Dagg. >> >> > >> >> >> >> > >> > >> >> > >> >unfortunately, that didn't helped, vm still wont come up, latest log at http://dpaste.com/2XZA4VQZA >> >> > >> >any ideas? >> >> > >> > >> >> > >> >> >> > >> Seems like the issue is: >> >> > >> >> >> > >> 2021-07-16T10:29:19.259409Z qemu-system-x86_64: vfio: Cannot reset device 0000:00:1f.3, no available reset mechanism. >> >> > >> 2021-07-16T10:29:19.369391Z qemu-system-x86_64: vfio: Cannot reset device 0000:00:1f.3, no available reset mechanism. >> >> > >> >> >> > >> did you upgrade anything else? >> >> > >> >> >> > > >> >> > >are you sure? you can see the same prints in the good log at http://dpaste.com/F2N5T8CT8 >> >> > > >> >> > >> >> > Oh, sorry, my bad. Then I do not see why it would not start. You said >> >> > you managed to make the VM start on your own, what was the change that >> >> > made it boot? Maybe there's a bug somewhere in qemu... >> >> > >> >> >> >> since the upgrade I wasn't able to boot it using libvirt. however the following qemucmd works: >> >> qemu-system-x86_64 \ >> >> -machine pc-q35-5.0,accel=kvm,usb=off,smm=on,dump-guest-core=off \ >> >> -cpu host,migratable=on \ >> >> -m 15360 \ >> >> -smp 4,sockets=1,dies=1,cores=2,threads=2 \ >> >> -drive file=/home/streamer/streamer.img.qcow2.new,if=virtio,format=qcow2 \ >> >> -device vfio-pci,host=0000:00:02.0,romfile=/home/streamer/gpu-8086:5912-uefi.rom,multifunction=on \ >> >> -device vfio-pci,host=0000:00:1f.3,multifunction=on \ >> >> -usb \ >> >> -device usb-host,vendorid=0x046d,productid=0xc52e \ >> >> -device usb-host,vendorid=0x2548,productid=0x1002 \ >> >> -display none \ >> >> -netdev tap,id=hostnet0,ifname=virtsw-streamer,script=no,downscript=no \ >> >> -device e1000e,netdev=hostnet0,id=net0,mac=52:54:00:5a:4c:8c \ >> >> -blockdev '{"driver":"file","filename":"/usr/share/edk2-ovmf/OVMF_CODE.secboot.fd","node-name":"libvirt-pflash0-storage","auto-read-only":true,"discard":"unmap"}' \ >> >> -blockdev '{"driver":"file","filename":"/var/lib/libvirt/qemu/nvram/streamer-vm-q35_VARS.fd","node-name":"libvirt-pflash1-storage","auto-readonly":true,"discard":"unmap"}' >> >> >> >> Dagg >> >> >> > >> >I was able to get the vm running again by creating the xml again. the only issue I'm facing is the fact that only the one playback device is visible: >> >**** List of PLAYBACK Hardware Devices **** >> >card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog] >> > Subdevices: 1/1 >> > Subdevice #0: subdevice #0 >> >prior to the upgrade I had hdmi entries too. >> >I've check with two different oses and the issue persists. >> >as mentioned before, if I drop this line: -audiodev id=audio1,driver=none from the cmd, I see all the playback channels. >> > >> >any idea? >> > >> >> So to clean up this thread let me reply to the two issues separately. >> >> 1) if your device-assigned audio is not visible with '-audiodev >> id=audio1,driver=none', but *is* visible with QEMU_AUDIO_DRV=none, >> then that is a bug in QEMU and needs to be dealt with there. >I'll ping the eqmu devs on this. > >> >> 2) To your issue with starting the domain it would be good to know what >> is the error you get from virsh (or however you are starting the >> domain) and the debug logs of libvirtd, ideally just for the part of >> the domain starting. >that is the issue, there wasn't any error. the vm just didn't booted. Oh, so I misunderstood. What was the state of the VM in libvirt? "paused" or "running"? Was there serial console working?

>I can diff the original xml with the new one to see the diffs and post them here if you wish > Would be nice to see if there are any differences. The newly created one works then?