[SOLVED] proxmox issue to start vm?

[killmasta93]

Hi,
I was wondering if someone could assist me, for some odd reason when i created another VM and try to start it, it would say

ioctl(KVM_CREATE_VM) failed: 12 Cannot allocate memory
failed to initialize KVM: Cannot allocate memory
TASK ERROR: start failed: command '/usr/bin/kvm -id 102 -chardev 'socket,id=qmp,path=/var/run/qemu-server/102.qmp,server,nowait' -mon 'chardev=qmp,mode=control' -pidfile /var/run/qemu-server/102.pid -daemonize -smbios 'type=1,uuid=b83988d9-b9de-4db0-8327-17272c76d951' -name Artemis -smp '1,sockets=1,cores=1,maxcpus=1' -nodefaults -boot 'menu=on,strict=on,reboot-timeout=1000,splash=/usr/share/qemu-server/bootsplash.jpg' -vga std -vnc unix:/var/run/qemu-server/102.vnc,x509,password -cpu kvm64,+lahf_lm,+sep,+kvm_pv_unhalt,+kvm_pv_eoi,enforce -m 1000 -k es -device 'pci-bridge,id=pci.1,chassis_nr=1,bus=pci.0,addr=0x1e' -device 'pci-bridge,id=pci.2,chassis_nr=2,bus=pci.0,addr=0x1f' -device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' -device 'usb-tablet,id=tablet,bus=uhci.0,port=1' -iscsi 'initiator-name=iqn.1993-08.org.debian:01:3beb84a1acc' -drive 'file=/var/lib/vz/template/iso/ubuntu.iso,if=none,id=drive-ide2,media=cdrom,aio=threads' -device 'ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=200' -drive 'file=/dev/zvol/vmdata/vm-102-disk-1,if=none,id=drive-virtio0,cache=writeback,format=raw,aio=threads,detect-zeroes=on' -device 'virtio-blk-pci,drive=drive-virtio0,id=virtio0,bus=pci.0,addr=0xa,bootindex=100' -netdev 'type=tap,id=net0,ifname=tap102i0,script=/var/lib/qemu-server/pve-bridge,downscript=/var/lib/qemu-server/pve-bridgedown,vhost=on' -device 'virtio-net-pci,mac=02:8E:33:D8:42:CE,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300'' failed: exit code 1

when i check free i get this

root@prometheus:~# free
              total        used        free      shared  buff/cache   available
Mem:       32897476    21642200      529160       53316    10726116    10129820
Swap:       8388604      359680     8028924

and on the web gui i clearly see i have enough ram (see picture) and running kernal 4.13.13.-2

root@prometheus:~# pveversion -v
proxmox-ve: 5.1-32 (running kernel: 4.13.13-2-pve)
pve-manager: 5.1-41 (running version: 5.1-41/0b958203)
pve-kernel-4.13.13-2-pve: 4.13.13-32
libpve-http-server-perl: 2.0-8
lvm2: 2.02.168-pve6
corosync: 2.4.2-pve3
libqb0: 1.0.1-1
pve-cluster: 5.0-19
qemu-server: 5.0-18
pve-firmware: 2.0-3
libpve-common-perl: 5.0-25
libpve-guest-common-perl: 2.0-14
libpve-access-control: 5.0-7
libpve-storage-perl: 5.0-17
pve-libspice-server1: 0.12.8-3
vncterm: 1.5-3
pve-docs: 5.1-12
pve-qemu-kvm: 2.9.1-5
pve-container: 2.0-18
pve-firewall: 3.0-5
pve-ha-manager: 2.0-4
ksm-control-daemon: 1.2-2
glusterfs-client: 3.8.8-1
lxc-pve: 2.1.1-2
lxcfs: 2.0.8-1
criu: 2.11.1-1~bpo90
novnc-pve: 0.6-4
smartmontools: 6.5+svn4324-1
zfsutils-linux: 0.7.3-pve1~bpo9

Not sure maybe this could be the issue as normally when i configure proxmox on

nano /etc/sysctl.conf

at the bottom i would add this

vm.min_free_kbytes = 262144
vm.dirty_ratio = 5
vm.dirty_background_ratio = 1
vm.swappiness = 1

on all the proxmox hosts never had an issue not sure maybe this could be?

Thank you

 

[upnort]

One guess is the RAM allocation configuration of all guest systems exceeds the total RAM of the system. Another guess is using memory ballooning, which allows allocated memory to expand and contract as needed.

 

[killmasta93]

Thanks for the reply, what solved this issue was running this after that everything is good odd because the ARC was eating the ram

echo 1 > /proc/sys/vm/compact_memory