Hot Add Memory cause VM to hang

[amitp123]

Hi Team

We had an issue where a vm crashed with hot memory enabled.

Is there a fix for this issue, apart from disabling hot add memory in an future releases?

Many Thanks and sorry if this has alredy been answered.

 

[amitp123]

Hi team

Any advice on this please?

Thanks

 

[aaron]

Some more details would be good to help you troubleshoot. Adding new memory on the fly while the VM is running is an operation that the guest OS must support as well.

- What guest OS?
- VM config? → qm config {vmdi} and then post the output within [CODE][/CODE] tags or use the buttons at the top of the editor.

 

[amitp123]

Hi Aaron apologies please see below :-

Ubuntu Jammy 22.04
agent: enabled=1,fstrim_cloned_disks=0,type=virtio
balloon: 0
bios: seabios
boot: order=sata0;scsi0
cicustom: network=data:snippets/varnish6-ets-a01-net.yaml,user=data:snippets/varnish6-ets-a01-user.yaml
cores: 2
cpu: x86-64-v2-AES
hotplug: disk,network,usb,cpu
memory: 4096
meta: creation-qemu=10.1.2,ctime=1769092189
name: varnish6-ets-a01.int.mol.dmgt.net
net0: virtio=BC:24:11:47DD,bridge=vmbr0v558,firewall=0
net1: virtio=BC:24:11:F8:AE:73,bridge=vmbr0v550,firewall=0
numa: 1
onboot: 1
ostype: l26
sata0: none,media=cdrom
scsi0: data:275/vm-275-disk-0.qcow2,aio=io_uring,backup=1,cache=none,discard=ignore,format=qcow2,iothread=1,replicate=1,size=24G,ssd=0
scsi1: data:275/vm-275-cloudinit.qcow2,media=cdrom
scsihw: virtio-scsi-single
serial0: socket
smbios1: uuid=5ddb81c8-2cc2-4e8c-9df8-0094822997c2
sockets: 1
tags: int;jammy;terraform
vmgenid: 19442fc3-e25a-4184-a383-b8470776f8f3

 

[amitp123]

We had to disable hot plug memory due to vm crash.