[CentOS] kvm: C8 as guest on C6 host / huge delay while booting

Sat May 16 15:28:54 UTC 2020
Strahil Nikolov <hunter86_bg at yahoo.com>

On May 16, 2020 6:09:22 PM GMT+03:00, Leon Fauster via CentOS <centos at centos.org> wrote:
>Am 11.05.20 um 15:59 schrieb Leon Fauster:
>> Since C8.1  kvm guests have a huge delay while booting on a kvm host 
>> based on C6. This delay was not present with C8.0. The "pause"
>happend
>> direct after the grub step. The VNC session shows only a "_"
>character.
>> 
>
>and this are the corresponding logs. The guest system continues to boot
>
>after ~5 minutes. At that point this appears
>
>May 16 16:44:14 ev kernel: kvm: 8458: cpu0 unhandled rdmsr: 0x140
>May 16 16:44:14 ev kernel: kvm: 8458: cpu0 disabled perfctr wrmsr: 0xc2
>
>data 0xffff
>May 16 16:44:14 ev kernel: kvm: 8458: cpu1 unhandled rdmsr: 0x140
>May 16 16:44:14 ev kernel: kvm: 8458: cpu2 unhandled rdmsr: 0x140
>May 16 16:44:14 ev kernel: kvm: 8458: cpu3 unhandled rdmsr: 0x140
>May 16 16:44:15 ev kernel: kvm: emulating exchange as write
>
>Any ideas?
>
>--
>Leon
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What is the output of:
systemd-analyze  blame
systemd-analyze  critical-chain
systemd-analyze  plot >  somefile

Best Regards,
Strahil Nikolov