View file File name : 60-libvirtd.conf Content :# The kernel allocates aio memory on demand, and this number limits the # number of parallel aio requests; the only drawback of a larger limit is # that a malicious guest could issue parallel requests to cause the kernel # to set aside memory. Set this number at least as large as # 128 * (number of virtual disks on the host) # Libvirt uses a default of 1M requests to allow 8k disks, with at most # 64M of kernel memory if all disks hit an aio request at the same time. fs.aio-max-nr = 1048576