Booting VM gives kernel panic error

[stra4d]

I have two CentOS 6.8 VMs. Sometimes, when they start up, I get the following kernel panic error:

kernel panic - not syncing: out of memory and no killable processes

I found the following thread, but it seems to have been a bug that was resolved:
https://forum.proxmox.com/threads/proxmox-ve-2-2-catastrophe-resolved.11867/#post-64732

Notes:
1. One VM is a copy of the other

2 Boots fine after a 'Reset'

3. Version info:

# pveversion -v
proxmox-ve: 4.3-66 (running kernel: 4.4.19-1-pve)
pve-manager: 4.3-10 (running version: 4.3-10/7230e60f)
pve-kernel-4.4.8-1-pve: 4.4.8-52
pve-kernel-4.4.19-1-pve: 4.4.19-66
lvm2: 2.02.116-pve3
corosync-pve: 2.4.0-1
libqb0: 1.0-1
pve-cluster: 4.0-47
qemu-server: 4.0-94
pve-firmware: 1.1-10
libpve-common-perl: 4.0-80
libpve-access-control: 4.0-19
libpve-storage-perl: 4.0-68
pve-libspice-server1: 0.12.8-1
vncterm: 1.2-1
pve-docs: 4.3-14
pve-qemu-kvm: 2.7.0-6
pve-container: 1.0-81
pve-firewall: 2.0-31
pve-ha-manager: 1.0-35
ksm-control-daemon: 1.2-1
glusterfs-client: 3.5.2-2+deb8u2
lxc-pve: 2.0.5-1
lxcfs: 2.0.4-pve2
criu: 1.6.0-1
novnc-pve: 0.5-8
smartmontools: 6.5+svn4324-1~pve80
zfsutils: 0.6.5.7-pve10~bpo80

 

[Archmatux]

Are these VMs configured to use dynamic memory?

I have had issues in the past where the "minimum memory" value would change to something very low like 1MB.

If you are using dynamic memory try changing the minimum to something higher.

 

[stra4d]

I have a range of 512MB min. to 4GB max.