Greetings Martin,
Sent: Wednesday, August 04, 2021 at 11:52 AM
From: "Martin Kletzander" <mkletzan(a)redhat.com>
To: "daggs" <daggs(a)gmx.com>
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>
>> To: "daggs" <daggs(a)gmx.com>
>> 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>
>> >> To: dan(a)berrange.com
>> >> Cc: "Martin Kletzander" <mkletzan(a)redhat.com>,
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>
>> >> > To: "daggs" <daggs(a)gmx.com>
>> >> > Cc: "Martin Kletzander" <mkletzan(a)redhat.com>,
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>
>> >> > > > To: "daggs" <daggs(a)gmx.com>
>> >> > > > Cc: "Martin Kletzander"
<mkletzan(a)redhat.com>, 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>
>> >> > > > > > To: "daggs" <daggs(a)gmx.com>
>> >> > > > > > Cc: "Martin Kletzander"
<mkletzan(a)redhat.com>, 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