Re: another upgrade another vm issue
Greetings Laine,
> Sent: Saturday, October 30, 2021 at 5:40 PM
> From: "Laine Stump"
> To: "libvirt-users@redhat.com"
> Cc: "daggs"
> Subject: Re: another upgrade another vm issue
>
>
>
> On 10/30/21 6:57 AM, daggs wrote:
> > Greetings Michal,
> >
> >> Sent: Friday, October 29, 2021 at 11:36 AM
> >> From: "Michal Prívozník"
> >> To: "daggs" , libvirt-users@redhat.com
> >> Subject: Re: another upgrade another vm issue
> >>
> >> On 10/28/21 8:40 PM, daggs wrote:
> >>> Greetings,
> >>>
> >>> so I've upgraded my server and yet again, one of my vm lost a
> >>> functionally.
> >>> there is no usable sound card.
> >>> xml: https://dpaste.com/CVR5M75VH
> >>> in vm: https://snipboard.io/aZ7Dcf.jpg
> >>>
> >>> outputs:
> >>> utils_server /home/igor # qemu-system-x86_64 --version
> >>> QEMU emulator version 6.0.0
> >>> Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers
> >>> utils_server /home/igor # libvirtd --version
> >>> libvirtd (libvirt) 7.8.0
> >>> utils_server /home/igor #
> >>>
> >>> any ideas?
> >>>
> >>> Thanks.
> >>>
> >>>
> >>
> >> I suspect it's related to:
> >>
> >>
> >>
> >> in the domain XML. Selecting a backend might help.
> >>
> >>https://libvirt.org/formatdomain.html#audio-backends
> >>
> >> Michal
> >>
> >>
> >
> > I've diffed the current xml with the one last known to work, they both have
> > the same entry
>
> Can you possibly downgrade QEMU, libvirt, and the host kernel
> independently to see if downgrading just one (or two) of them fixes the
> problem?
>
> (I would normally have suggested diffing the qemu commandline from the
> logs in /var/log/libvirt/qemu/${guestname}.log to see if the VFIO
> portion was unchanged (and thus counting out libvirt from the possible
> causes of the problem), but the commandlines have recently switched to
> using JSON syntax, so they will probably be different anyway).
>
> Since your audio device is assigned with VFIO, and libvirt has nothing
> more to do with that than just unbinding the host driver and binding the
> vfio-pci driver, then putting the info on the commandline for QEMU, I'd
> put money on the problem being either in QEMU or the kernel, in which
> case you'd probably get more useful advice from the
> vfio-us...@redhat.com mailing list than here.
>
>
the kernel didn't changed.
downgrading both libvirt and eqmu was the first thing I did when the issue was
encountered. the problem persisted.
I've isolated the last good execution of the vm prior to the upgrade, diffed
the command line, it is the same one.
I'll verify that the working one is the the right one and will test again.
I'll go to vfio-users after I've make sure that nothing differs with the env.
thanks, for the help.
Dagg.
Re: another upgrade another vm issue
On 10/30/21 6:57 AM, daggs wrote:
Greetings Michal,
Sent: Friday, October 29, 2021 at 11:36 AM
From: "Michal Prívozník"
To: "daggs" , libvirt-users@redhat.com
Subject: Re: another upgrade another vm issue
On 10/28/21 8:40 PM, daggs wrote:
Greetings,
so I've upgraded my server and yet again, one of my vm lost a functionally.
there is no usable sound card.
xml: https://dpaste.com/CVR5M75VH
in vm: https://snipboard.io/aZ7Dcf.jpg
outputs:
utils_server /home/igor # qemu-system-x86_64 --version
QEMU emulator version 6.0.0
Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers
utils_server /home/igor # libvirtd --version
libvirtd (libvirt) 7.8.0
utils_server /home/igor #
any ideas?
Thanks.
I suspect it's related to:
in the domain XML. Selecting a backend might help.
https://libvirt.org/formatdomain.html#audio-backends
Michal
I've diffed the current xml with the one last known to work, they both have the
same entry
Can you possibly downgrade QEMU, libvirt, and the host kernel
independently to see if downgrading just one (or two) of them fixes the
problem?
(I would normally have suggested diffing the qemu commandline from the
logs in /var/log/libvirt/qemu/${guestname}.log to see if the VFIO
portion was unchanged (and thus counting out libvirt from the possible
causes of the problem), but the commandlines have recently switched to
using JSON syntax, so they will probably be different anyway).
Since your audio device is assigned with VFIO, and libvirt has nothing
more to do with that than just unbinding the host driver and binding the
vfio-pci driver, then putting the info on the commandline for QEMU, I'd
put money on the problem being either in QEMU or the kernel, in which
case you'd probably get more useful advice from the
vfio-us...@redhat.com mailing list than here.
Re: another upgrade another vm issue
Greetings Daniel, > Sent: Friday, October 29, 2021 at 11:57 AM > From: "Daniel P. Berrange" > To: "Michal Prívozník" > Cc: "daggs" , libvirt-users@redhat.com > Subject: Re: another upgrade another vm issue > > On Fri, Oct 29, 2021 at 10:36:24AM +0200, Michal Prívozník wrote: > > On 10/28/21 8:40 PM, daggs wrote: > > > Greetings, > > > > > > so I've upgraded my server and yet again, one of my vm lost a > > > functionally. > > > there is no usable sound card. > > > xml: https://dpaste.com/CVR5M75VH > > > in vm: https://snipboard.io/aZ7Dcf.jpg > > > > > > outputs: > > > utils_server /home/igor # qemu-system-x86_64 --version > > > QEMU emulator version 6.0.0 > > > Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers > > > utils_server /home/igor # libvirtd --version > > > libvirtd (libvirt) 7.8.0 > > > utils_server /home/igor # > > > > > > any ideas? > > > > > > Thanks. > > > > > > > > > > I suspect it's related to: > > > > > > > > in the domain XML. Selecting a backend might help. > > That just sets the host OS backend. I see no device frontend > present in the guest OS. So unless one of the is a sound > card that explains the lack of sound in the guest. > > If the is a sound card, then the backend is > unrelated anyway. > > With regards, > Daniel you are correct, my apologies, I've forgot to point out that it is a pt soundcard, the sound card is located at 00:1f.3 in the host and at 07:00.0 in the guest Thanks, Dagg
Re: another upgrade another vm issue
Greetings Michal, > Sent: Friday, October 29, 2021 at 11:36 AM > From: "Michal Prívozník" > To: "daggs" , libvirt-users@redhat.com > Subject: Re: another upgrade another vm issue > > On 10/28/21 8:40 PM, daggs wrote: > > Greetings, > > > > so I've upgraded my server and yet again, one of my vm lost a functionally. > > there is no usable sound card. > > xml: https://dpaste.com/CVR5M75VH > > in vm: https://snipboard.io/aZ7Dcf.jpg > > > > outputs: > > utils_server /home/igor # qemu-system-x86_64 --version > > QEMU emulator version 6.0.0 > > Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers > > utils_server /home/igor # libvirtd --version > > libvirtd (libvirt) 7.8.0 > > utils_server /home/igor # > > > > any ideas? > > > > Thanks. > > > > > > I suspect it's related to: > > > > in the domain XML. Selecting a backend might help. > > https://libvirt.org/formatdomain.html#audio-backends > > Michal > > I've diffed the current xml with the one last known to work, they both have the same entry Thanks, Dagg
Re: another upgrade another vm issue
On Fri, Oct 29, 2021 at 10:36:24AM +0200, Michal Prívozník wrote: > On 10/28/21 8:40 PM, daggs wrote: > > Greetings, > > > > so I've upgraded my server and yet again, one of my vm lost a functionally. > > there is no usable sound card. > > xml: https://dpaste.com/CVR5M75VH > > in vm: https://snipboard.io/aZ7Dcf.jpg > > > > outputs: > > utils_server /home/igor # qemu-system-x86_64 --version > > QEMU emulator version 6.0.0 > > Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers > > utils_server /home/igor # libvirtd --version > > libvirtd (libvirt) 7.8.0 > > utils_server /home/igor # > > > > any ideas? > > > > Thanks. > > > > > > I suspect it's related to: > > > > in the domain XML. Selecting a backend might help. That just sets the host OS backend. I see no device frontend present in the guest OS. So unless one of the is a sound card that explains the lack of sound in the guest. If the is a sound card, then the backend is unrelated anyway. With regards, Daniel -- |: https://berrange.com -o-https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o-https://fstop138.berrange.com :| |: https://entangle-photo.org-o-https://www.instagram.com/dberrange :|
Re: another upgrade another vm issue
On 10/28/21 8:40 PM, daggs wrote: > Greetings, > > so I've upgraded my server and yet again, one of my vm lost a functionally. > there is no usable sound card. > xml: https://dpaste.com/CVR5M75VH > in vm: https://snipboard.io/aZ7Dcf.jpg > > outputs: > utils_server /home/igor # qemu-system-x86_64 --version > QEMU emulator version 6.0.0 > Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers > utils_server /home/igor # libvirtd --version > libvirtd (libvirt) 7.8.0 > utils_server /home/igor # > > any ideas? > > Thanks. > > I suspect it's related to: in the domain XML. Selecting a backend might help. https://libvirt.org/formatdomain.html#audio-backends Michal
another upgrade another vm issue
Greetings, so I've upgraded my server and yet again, one of my vm lost a functionally. there is no usable sound card. xml: https://dpaste.com/CVR5M75VH in vm: https://snipboard.io/aZ7Dcf.jpg outputs: utils_server /home/igor # qemu-system-x86_64 --version QEMU emulator version 6.0.0 Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers utils_server /home/igor # libvirtd --version libvirtd (libvirt) 7.8.0 utils_server /home/igor # any ideas? Thanks.
