Comment 2 for bug 1902516

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Balazs Gibizer (balazs-gibizer) wrote : Re: [CI] Libvirt error "TCG doesn't support requested feature: CPUID.01H:ECX.vmx" cause failure while spawning instance

The interesting log is a bit later in the screen-n-cpu.txt:

Nov 02 09:13:25.177820 ubuntu-bionic-rax-ord-0021331595 nova-compute[23193]: 2020-11-02T09:13:24.491970Z qemu-system-x86_64: cannot set up guest memory 'pc.ram': Cannot allocate memory

So the hypervisor run out of memory.