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Re: 4.15.0-rc3 can't create domain when dom0 uses newer kernel


  • To: Tamas K Lengyel <tamas@xxxxxxxxxxxxx>
  • From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
  • Date: Mon, 15 Mar 2021 22:37:01 +0100
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  • Delivery-date: Mon, 15 Mar 2021 21:37:31 +0000
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On Mon, Mar 15, 2021 at 04:18:42PM -0400, Tamas K Lengyel wrote:
> Hi all,
> I've ran into a pretty strange issue. I have a freshly installed 4.15.0-rc3
> system and everything works fine with the stock Ubuntu 20.04
> vmlinuz-5.4.0-66-generic as the dom0 kernel - except vmtrace, which needs a
> newer kernel, that's expected. Now if I boot dom0 with
> vmlinuz-5.8.0-44-generic or vmlinuz-5.10.0-1016-oem I can't start any
> domains because of some strange disk error:
> 
> root@t2:/shared/cfg# xl create ubuntu-20.04.cfg
> Parsing config from ubuntu-20.04.cfg
> libxl: error: libxl_device.c:1109:device_backend_callback: Domain 1:unable
> to add device with path /local/domain/0/backend/vbd/1/51712
> libxl: error: libxl_create.c:1613:domcreate_launch_dm: Domain 1:unable to
> add disk devices

Can you paste the output with `xl -vvv create ...`?

Thanks, Roger.



 


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