Re: issues with vm after upgrade

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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@xxxxxxxxxx>
To: "daggs" <daggs@xxxxxxx>
Cc: libvirt-users@xxxxxxxxxx, dan@xxxxxxxxxxxx
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@xxxxxxx>
>> To: dan@xxxxxxxxxxxx
>> Cc: "Martin Kletzander" <mkletzan@xxxxxxxxxx>, libvirt-users@xxxxxxxxxx
>> Subject: Re: issues with vm after upgrade
>>
>> Greetings Daniel,
>>
>> > Sent: Tuesday, August 03, 2021 at 6:39 PM
>> > From: "Daniel P. Berrange" <dan@xxxxxxxxxxxx>
>> > To: "daggs" <daggs@xxxxxxx>
>> > Cc: "Martin Kletzander" <mkletzan@xxxxxxxxxx>, libvirt-users@xxxxxxxxxx
>> > 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@xxxxxxxxxxxx>
>> > > > To: "daggs" <daggs@xxxxxxx>
>> > > > Cc: "Martin Kletzander" <mkletzan@xxxxxxxxxx>, libvirt-users@xxxxxxxxxx
>> > > > 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@xxxxxxxxxxxx>
>> > > > > > To: "daggs" <daggs@xxxxxxx>
>> > > > > > Cc: "Martin Kletzander" <mkletzan@xxxxxxxxxx>, libvirt-users@xxxxxxxxxx
>> > > > > > 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...

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