Re: [PATCH v5 6/9] KVM: selftests: Limit the number of VM creates in hardware_disable_test

[Sean Christopherson]

On Tue, Sep 22, 2026, Ritesh Harjani (IBM) wrote:
> hardware_disable_test forks several VMs (NR_IERATIONS=512). This patch
> limits that number to 4 when we know that we are running in constraint
> host environment. The number 4 is just a safe minimum when
> kvm_arch_vm_create_may_enomem() can be true.

Please actually explain *why* this is necessary, and where the magic '4' comes.
I assume there's some system-wide resource at play?