cannot allocate memory 조치 방법

[증상]

# hugepage 설정된 KVM Host에서 virsh start 시 Cannot allocate memory 에러나며 실행 불가

[root@director-host ~]# virsh start director error: Failed to start domain director error: internal error: process exited while connecting to monitor: ioctl(KVM_CREATE_VM) failed: 12 Cannot allocate memory 2021-09-30T01:43:10.316038Z qemu-kvm: failed to initialize KVM: Cannot allocate memory

 

[조치방법]

[root@director-host ~]# free -m               total        used        free      shared  buff/cache   available Mem:         386655      363228        3491        2215       19935       20367 Swap:          4095        2196        1899 [root@director-host ~]# sync [root@director-host ~]# echo 3 > /proc/sys/vm/drop_caches [root@director-host ~]# virsh start director Domain director started [root@director-host ~]# virsh list --all  Id    Name                           State ----------------------------------------------------  51    director                running