Ubuntu
qemu package

  1. Bug #2012763
  2. Comment #26

Comment 26 for bug 2012763

Revision history for this message
Sergio Durigan Junior (sergiodj) wrote :

Hi Amy,

Thanks for the feedback. I see from the snapshots you posted that you're using the 'pc-q35-7.1' machine type when launching the VM. As explained on comment #19, you have to use the new machine types in order to enable support for more than 288 vCPUs. In this case, you can use the machine type 'pc-q35-jammy-maxcpus'.

On top of that, you're using LXD to create the VM which means that it'll use its own copy of qemu-system-x86_64 (/snap/lxd/current/bin/qemu-system-x86_64), and not the system one. Can you try invoking qemu directly with the machine type mentioned above?

I'm almost sure it won't work out of the box, and there may be more patches that need to be backported in order to make this work on qemu 6.2, but I'd like to take a look at the output you get.

Thank you.