I have two Fedora servers, one is still on v41 the other I upgraded to v42, but I cannot get either when using any 6.14 kernel to use memory ballooning. If I revert the v42 server kernel 6.13 everything is normal - I couldn't figure out how to install 6.13 on v42 but the issue doesn't block the server very often.
For example, my Fedora 42 server:
It starts up and looks like this:
If I then stress it out to force it to use more ram, nothing changes and it tries to use what was already there - it never tries to allocate any of the extra 1GB ram that should be available:
The exact same thing happens on the Fedora 41 server but it's worse as it's a far larger server running many containers etc, and basically comes to a screeching halt and I have to kill the VM. I've removed 6.14, keeping it on 6.13, and avoid updates to the kernel.
Any ideas? The host itself is not having memory issues, I have other VMs that include Windows Server and Debian 12, and they're all fine. It's just Fedora with the issue.
For example, my Fedora 42 server:
Code:
#Fedora 42
agent: 1
args: -vnc 0.0.0.0:04
balloon: 1024
bios: ovmf
boot: order=scsi0
cores: 1
cpu: host
efidisk0: cpool-01:vm-104-disk-0,efitype=4m,pre-enrolled-keys=1,size=1M
hotplug: disk,network,usb,memory,cpu
machine: q35,viommu=virtio
memory: 2048
meta: creation-qemu=8.0.2,ctime=1692967959
name: FRINK
net0: virtio=BC:24:11:21:8A:43,bridge=vmbr0
numa: 1
onboot: 1
ostype: l26
scsi0: cpool-01:vm-104-disk-1,discard=on,iothread=1,size=10G
scsihw: virtio-scsi-single
smbios1: uuid=74151127-8bdd-42d7-9c92-fd9a91f92de4
sockets: 1
tags: vm;linux
vga: virtio,clipboard=vnc
vmgenid: e02004df-51d4-4303-9f0c-82a6448feb8aIt starts up and looks like this:
If I then stress it out to force it to use more ram, nothing changes and it tries to use what was already there - it never tries to allocate any of the extra 1GB ram that should be available:
The exact same thing happens on the Fedora 41 server but it's worse as it's a far larger server running many containers etc, and basically comes to a screeching halt and I have to kill the VM. I've removed 6.14, keeping it on 6.13, and avoid updates to the kernel.
Any ideas? The host itself is not having memory issues, I have other VMs that include Windows Server and Debian 12, and they're all fine. It's just Fedora with the issue.
