Public bug reported:
Binary package hint: kvm
As soon as I turned on cpu frequency scaling, one of my guest domains
that was using multiple vcpus did a kernel panic.
The dmesg on the host server had repeated lines of this:
[1041427.963898] vcpu not ready for apic_round_robin
[1041427.963900] vcpu not ready for apic_round_robin
[1041427.963902] vcpu not ready for apic_round_robin
The Kernel panic on the guest said:
smp_apic_timer_interrupt...
apic_timer_interrupt...
EIP: insert_work
Kernel panic - not syncing: Fatal exception in interrupt.
I put all the guest domains to only use a single vcpu, and left the cpu
frequency scaling on at the host server. This appeared to avoid the
issue for the time being.
** Affects: kvm (Ubuntu)
Importance: Undecided
Status: New
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cpu frequency scaling causes multiple vcpu guests to panic
https://bugs.launchpad.net/bugs/246175
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