Mailing List Archive: Can't start VMs after updating to Debian 12 bookworm from 11 bullseye (Xen 4.14 to 4.17)

Can't start VMs after updating to Debian 12 bookworm from 11 bullseye (Xen 4.14 to 4.17)

Oct 22, 2023, 10:50 AM

Post #1 of 3 (108 views)

After performing a dist-upgrade from Debian 11 (bullseye) to Debian 12
(bookworm), and updating to Xen 4.17 from 4.14, I'm unable to start (xl
create) any of my existing Xen domUs (consisting of pv and hvm guests).

I also attempted to create a new pv domU by following the Xen Project
Beginners Guide tutorial on wiki.xenproject.org (
https://wiki.xenproject.org/wiki/Xen_Project_Beginners_Guide#Configuring_xen-tools_and_building_our_guest
) That yielded the same result.

The result of the xl create command is as follows:

simba@cyclone:/etc/xen$ sudo xl create tutorial-pv-guest.cfg
Parsing config from tutorial-pv-guest.cfg
libxl: error: libxl_create.c:1976:console_xswait_callback: domain 9
console tty: timed out
libxl: error: libxl_domain.c:1183:libxl__destroy_domid: Domain
9:Non-existant domain
libxl: error: libxl_domain.c:1137:domain_destroy_callback: Domain
9:Unable to destroy guest
libxl: error: libxl_domain.c:1064:domain_destroy_cb: Domain
9:Destruction of domain failed

tutorial-pv-guest.cfg has the following contents:

bootloader = 'pygrub'
vcpus = '2'
memory = '4096'
root = '/dev/xvda2 ro'
disk = [
'phy:/dev/cyclonevg2/tutorial-pv-guest-disk,xvda2,w',
'phy:/dev/cyclonevg2/tutorial-pv-guest-swap,xvda1,w',
]
name = 'tutorial-pv-guest'
dhcp = 'dhcp'
vif = [ 'mac=00:16:3E:57:56:64, bridge=egint' ]
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'

/var/log/xen/bootloader.{id}.log shows a pyGrub selection screen, so it
seems that the VM is at least getting somewhere, but xl create is timing
out waiting for a console or something, and destroying the domU.

None of the other logs (syslog , kern.log) seem to show anything out of
the ordinary.

Am I missing something obvious?

--
Scott Garron

Re: Can't start VMs after updating to Debian 12 bookworm from 11 bullseye (Xen 4.14 to 4.17) [ In reply to ]

xen-users at sce

Oct 22, 2023, 1:28 PM

Post #2 of 3 (108 views)

Permalink

On 10/22/23 13:50, Scott Garron wrote:
> The result of the xl create command is as follows:
>
> simba@cyclone:/etc/xen$ sudo xl create tutorial-pv-guest.cfg
>
> Parsing config from tutorial-pv-guest.cfg libxl: error:
> libxl_create.c:1976:console_xswait_callback: domain 9 console tty:
> timed out

Managed to get the PV guests to start/create. While experiencing
the problem, my dom0 kernel was from the Debian package
linux-image-6.1.0-11-amd64. After updating to
linux-image-6.1.0-13-amd64, the PV guests could start.

I had reverted to xen 4.14 in the mean time, and my HVM guests
still won't start (different result in xl, with a
/var/log/xen/qemu-dm-{domU}.log entry mentioning that qemu-system-i386:
-xen-domid 5: Option not supported for this target). Most likely, I can get
those to start by updating Xen.

--
Scott Garron

Re: Can't start VMs after updating to Debian 12 bookworm from 11 bullseye (Xen 4.14 to 4.17) [ In reply to ]

xen-users at sce

Oct 22, 2023, 1:55 PM

Post #3 of 3 (108 views)

Permalink

On 10/22/23 16:28, Scott Garron wrote:
> my HVM guests still won't start (different result in xl, with a
> /var/log/xen/qemu-dm-{domU}.log entry mentioning that
> qemu-system-i386: -xen-domid 5: Option not supported for this
> target). Most likely, I can get those to start by updating Xen.

Indeed, updating to Xen 4.17 fixed that issue, but it also involved
commenting out device_model_version and device_model_override entries in
the HVM guest configuration files.

--
Scott Garron
Eginity, Inc.