[SOLVED] VM stuck on reboot

May 20, 2016

First of all :
proxmox-ve: 5.1-26 (running kernel: 4.13.4-1-pve) pve-manager: 5.1-36 (running version: 5.1-36/131401db) pve-kernel-4.13.4-1-pve: 4.13.4-26 pve-kernel-4.10.17-4-pve: 4.10.17-24 pve-kernel-4.10.17-2-pve: 4.10.17-20 pve-kernel-4.10.17-3-pve: 4.10.17-23 libpve-http-server-perl: 2.0-6 lvm2: 2.02.168-pve6 corosync: 2.4.2-pve3 libqb0: 1.0.1-1 pve-cluster: 5.0-15 qemu-server: 5.0-17 pve-firmware: 2.0-3 libpve-common-perl: 5.0-20 libpve-guest-common-perl: 2.0-13 libpve-access-control: 5.0-7 libpve-storage-perl: 5.0-16 pve-libspice-server1: 0.12.8-3 vncterm: 1.5-2 pve-docs: 5.1-12 pve-qemu-kvm: 2.9.1-2 pve-container: 2.0-17 pve-firewall: 3.0-3 pve-ha-manager: 2.0-3 ksm-control-daemon: 1.2-2 glusterfs-client: 3.8.8-1 lxc-pve: 2.1.0-2 lxcfs: 2.0.7-pve4 criu: 2.11.1-1~bpo90 novnc-pve: 0.6-4 smartmontools: 6.5+svn4324-1 zfsutils-linux: 0.7.3-pve1~bpo9

I face a strange issue on a Proxmox cluster server. It happened 4 times on Ubuntu 16.04 up-to-date guests on different nodes.
When I reboot the VM (sudo reboot), the VM seems to be stuck with CPU more than 100% (~105%).
I am not able to connect to SSH on the VM, i can't either have the virtual console thought web interface.
I got timeout when I try to stop/pause the VM, reset seems to not always work.
After I successfully shutdown/boot the VM, I don't find any information if the shutdown was improperly done.

Anyone have an idea why ?


Active Member
Mar 30, 2012
I sometimes see this behavior when I have update the Proxmox packages but not rebooted the Proxmox server.


Nov 3, 2017
Having the same problem, just chiming in here and waiting for a fix or solution. Sometimes my Ubuntu LTS VMs just get stuck on reboot with 100% load and nothing but a power down helps. No reset possible.


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