"kvm_amd CPU x isn't AMD or Hygon" at boot
https://askubuntu.com/questions/1564432/kvm-amd-cpu-x-isnt-amd-or-hygon-at-boot
kvm_amd CPU x isn't AMD or Hygon?
This text appear early in the boot sequence.
Now this is not really causing any trouble, RIGHT NOW.
But I consider all similar messages to be a potential hazard to the stability of my machine.
Therefore I quite fiercely hunt them down, and "swat them out".
The more of these unwanted messages you have the greater potential for strange interference and malfunction.
These are apparently about virtualbox:
https://unix.stackexchange.com/questions/798132/why-and-how-were-kvm-modules-unexpectedly-enabled-in-ubuntu-24-04
KVM not supported shown in terminal while it is enabled
... but I have this on intel-based hardware,
an oldish i7-9750H-based Asus G731 laptop, with embedded GTX 1660 Ti.
NOTE: 6 cores+HT, so message does not appear for ALL cores(!?)
Virtualbox 7.2(?) IS installed though, but quite seldom used.
I have:
GRUB_CMDLINE_LINUX_DEFAULT= ... kvm.enable_virt_at_load=0
in /etc/default/grub
No go.
Another attempt to fix it:
$ sudo -i
# cat >/etc/modprobe.d/kvm.conf
blacklist kvm
blacklist kvm-amd
blacklist kvm-intel
CTRl+D
# update-initramfs -u -k all
update-initramfs: Generating /boot/initrd.img-6.17.0-14-generic
...
#
CTRl+D again
Reboot... I still get a black screen with these boot messages:
[ 6.359851]
[ 10.531179] kvm_amd: CPU 4 isn't AMD or Hygon
[ 11.104935] kvm_amd: CPU 6 isn't AMD or Hygon
[ 11.193682] kvm_amd: CPU 9 isn't AMD or Hygon
_
Still there:
[ 6.479793]
[ 10.253887] kvm_amd: CPU 9 isn't AMD or Hygon
[ 10.901341] kvm_amd: CPU 3 isn't AMD or Hygon
[ 10.987984] kvm_amd: CPU 5 isn't AMD or Hygon
_
Those CPU numbers appears to be somewhat random, another run:
0, 8 and 0 (yes, zero repeated) at around 10 seconds.
There has been some apt updates so now with:
$ uname -rv
6.17.0-29-generic #29~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Mon May 11 10:30:58 UTC 2
Does anyone have any more ideas on how to actually get rid of this?