[Proxmox 7.2-3 - CEPH 16.2.7] Migrating VMs hangs them (kernel panic on Linux, freeze on Windows)

Pakillo77 · May 16, 2022

Hi,
After upgrade to PVE 7.2-3 I cannot migrate VMs between nodes.
The migration process is done ok, but the VM hangs once it is hosted in the target node.

root@pve224:~# pveversion -v
proxmox-ve: 7.2-1 (running kernel: 5.15.35-1-pve)
pve-manager: 7.2-3 (running version: 7.2-3/c743d6c1)
pve-kernel-5.15: 7.2-3
pve-kernel-helper: 7.2-3
pve-kernel-5.4: 6.4-15
pve-kernel-5.15.35-1-pve: 5.15.35-3
pve-kernel-5.4.174-2-pve: 5.4.174-2
pve-kernel-5.4.128-1-pve: 5.4.128-2
pve-kernel-5.4.73-1-pve: 5.4.73-1
ceph: 16.2.7
ceph-fuse: 16.2.7
corosync: 3.1.5-pve2
criu: 3.15-1+pve-1
glusterfs-client: 9.2-1
ifupdown: residual config
ifupdown2: 3.1.0-1+pmx3
ksm-control-daemon: 1.4-1
libjs-extjs: 7.0.0-1
libknet1: 1.22-pve2
libproxmox-acme-perl: 1.4.2
libproxmox-backup-qemu0: 1.2.0-1
libpve-access-control: 7.1-8
libpve-apiclient-perl: 3.2-1
libpve-common-perl: 7.1-6
libpve-guest-common-perl: 4.1-2
libpve-http-server-perl: 4.1-1
libpve-storage-perl: 7.2-2
libqb0: 1.0.5-1
libspice-server1: 0.14.3-2.1
lvm2: 2.03.11-2.1
lxc-pve: 4.0.12-1
lxcfs: 4.0.12-pve1
novnc-pve: 1.3.0-3
proxmox-backup-client: 2.1.8-1
proxmox-backup-file-restore: 2.1.8-1
proxmox-mini-journalreader: 1.3-1
proxmox-widget-toolkit: 3.4-10
pve-cluster: 7.2-1
pve-container: 4.2-1
pve-docs: 7.2-2
pve-edk2-firmware: 3.20210831-2
pve-firewall: 4.2-5
pve-firmware: 3.4-2
pve-ha-manager: 3.3-4
pve-i18n: 2.7-1
pve-qemu-kvm: 6.2.0-6
pve-xtermjs: 4.16.0-1
qemu-server: 7.2-2
smartmontools: 7.2-pve3
spiceterm: 3.2-2
swtpm: 0.7.1~bpo11+1
vncterm: 1.7-1
zfsutils-linux: 2.1.4-pve1

I've tested it on 2 different clusters: same versions, same result.

Pakillo77 · May 17, 2022

I've compared the Proxmox & KVM packages versions with another well working cluster and I've downgraded those packages: same error.

I've downgraded then the kernel version, and after the reboot... it works ok!
Kernel version pve-kernel-5.13.19-6-pve works ok, no problem migrating VMs.

Then, I've upgraded all Proxmox & KVM packages versions again and the migration keeps working fine.
Then, Ive upgraded the kernel to pve-kernel-5.15.35-1-pve and it fails.

So, it's clear to me that this is a kernel related problem, and I've tested some of them in the same scenario:
pve-kernel-5.15.35-3-pve FAILS
pve-kernel-5.15.35-1-pve FAILS
pve-kernel-5.15.30-2-pve WORKS
pve-kernel-5.13.19-6-pve WORKS

Commands to downgrade packages without dependency problems:

apt install pve-kernel-5.15.30-2-pve proxmox-ve=7.1-2
apt remove pve-kernel-5.15.35*
reboot

Ciao,

abma · May 22, 2022

possible the same problem:

https://bugzilla.proxmox.com/show_bug.cgi?id=4073 or https://forum.proxmox.com/threads/v...grade-to-pve-7-2-with-bug-soft-lockup.109754/

Pakillo77 · May 22, 2022

abma said:
possible the same problem:

https://bugzilla.proxmox.com/show_bug.cgi?id=4073 or https://forum.proxmox.com/threads/v...grade-to-pve-7-2-with-bug-soft-lockup.109754/

Please, tell me if downgrading to pve-kernel-5.15.30-2 solves the problem for you too.

Thanks,

abma · May 23, 2022

Pakillo77 said:
Please, tell me if downgrading to pve-kernel-5.15.30-2 solves the problem for you too.

sadly no. downgraded all nodes to "Linux version 5.15.30-2-pve": still the same hang after migration the vms between the hosts.

i guess next should be to downgrade pve-qemu-kvm?!

Sourcenux · May 24, 2022

abma said:
sadly no. downgraded all nodes to "Linux version 5.15.30-2-pve": still the same hang after migration the vms between the hosts.

i guess next should be to downgrade pve-qemu-kvm?!

Did you get any further with this topic? We do have the same problem. Also downgrading proxmox-ve and kernel does not solve it.

Sourcenux · May 24, 2022

Sourcenux said:
Did you get any further with this topic? We do have the same problem. Also downgrading proxmox-ve and kernel does not solve it.

OK. I have tried to upgrade to pve-qemu-kvm: 6.2.0-8 from pve-test. Now the issue seems to be gone.

nmmn · May 30, 2022

Pakillo77 said:
Hi,
After upgrade to PVE 7.2-3 I cannot migrate VMs between nodes.
The migration process is done ok, but the VM hangs once it is hosted in the target node.

root@pve224:~# pveversion -v proxmox-ve: 7.2-1 (running kernel: 5.15.35-1-pve) pve-manager: 7.2-3 (running version: 7.2-3/c743d6c1) pve-kernel-5.15: 7.2-3 pve-kernel-helper: 7.2-3 pve-kernel-5.4: 6.4-15 pve-kernel-5.15.35-1-pve: 5.15.35-3 pve-kernel-5.4.174-2-pve: 5.4.174-2 pve-kernel-5.4.128-1-pve: 5.4.128-2 pve-kernel-5.4.73-1-pve: 5.4.73-1 ceph: 16.2.7 ceph-fuse: 16.2.7 corosync: 3.1.5-pve2 criu: 3.15-1+pve-1 glusterfs-client: 9.2-1 ifupdown: residual config ifupdown2: 3.1.0-1+pmx3 ksm-control-daemon: 1.4-1 libjs-extjs: 7.0.0-1 libknet1: 1.22-pve2 libproxmox-acme-perl: 1.4.2 libproxmox-backup-qemu0: 1.2.0-1 libpve-access-control: 7.1-8 libpve-apiclient-perl: 3.2-1 libpve-common-perl: 7.1-6 libpve-guest-common-perl: 4.1-2 libpve-http-server-perl: 4.1-1 libpve-storage-perl: 7.2-2 libqb0: 1.0.5-1 libspice-server1: 0.14.3-2.1 lvm2: 2.03.11-2.1 lxc-pve: 4.0.12-1 lxcfs: 4.0.12-pve1 novnc-pve: 1.3.0-3 proxmox-backup-client: 2.1.8-1 proxmox-backup-file-restore: 2.1.8-1 proxmox-mini-journalreader: 1.3-1 proxmox-widget-toolkit: 3.4-10 pve-cluster: 7.2-1 pve-container: 4.2-1 pve-docs: 7.2-2 pve-edk2-firmware: 3.20210831-2 pve-firewall: 4.2-5 pve-firmware: 3.4-2 pve-ha-manager: 3.3-4 pve-i18n: 2.7-1 pve-qemu-kvm: 6.2.0-6 pve-xtermjs: 4.16.0-1 qemu-server: 7.2-2 smartmontools: 7.2-pve3 spiceterm: 3.2-2 swtpm: 0.7.1~bpo11+1 vncterm: 1.7-1 zfsutils-linux: 2.1.4-pve1

I've tested it on 2 different clusters: same versions, same result.

We have same issue with AMD EPYC 7543P Processor... do you have AMD too? Intel is working fine...

Pakillo77 · May 30, 2022

nmmn said:
We have same issue with AMD EPYC 7543P Processor... do you have AMD too? Intel is working fine...

We have the same problem with Intel in one cluster, and with AMD Ryzen 7 PRO 3700 in another

Pakillo77 · Jun 12, 2022

Still having the same problem with Proxmox 7.2-4 and kernel 5.15.35-2.

root@pve221:~# pveversion -v
proxmox-ve: 7.2-1 (running kernel: 5.15.35-2-pve)
pve-manager: 7.2-4 (running version: 7.2-4/ca9d43cc)
pve-kernel-5.15: 7.2-4
pve-kernel-helper: 7.2-4
pve-kernel-5.15.35-2-pve: 5.15.35-5
pve-kernel-5.15.35-1-pve: 5.15.35-3
pve-kernel-5.15.30-2-pve: 5.15.30-3
ceph: 16.2.7
ceph-fuse: 16.2.7
corosync: 3.1.5-pve2
criu: 3.15-1+pve-1
glusterfs-client: 9.2-1
ifupdown2: 3.1.0-1+pmx3
ksm-control-daemon: 1.4-1
libjs-extjs: 7.0.0-1
libknet1: 1.24-pve1
libproxmox-acme-perl: 1.4.2
libproxmox-backup-qemu0: 1.3.1-1
libpve-access-control: 7.2-2
libpve-apiclient-perl: 3.2-1
libpve-common-perl: 7.2-2
libpve-guest-common-perl: 4.1-2
libpve-http-server-perl: 4.1-2
libpve-storage-perl: 7.2-4
libspice-server1: 0.14.3-2.1
lvm2: 2.03.11-2.1
lxc-pve: 4.0.12-1
lxcfs: 4.0.12-pve1
novnc-pve: 1.3.0-3
proxmox-backup-client: 2.2.3-1
proxmox-backup-file-restore: 2.2.3-1
proxmox-mini-journalreader: 1.3-1
proxmox-widget-toolkit: 3.5.1
pve-cluster: 7.2-1
pve-container: 4.2-1
pve-docs: 7.2-2
pve-edk2-firmware: 3.20210831-2
pve-firewall: 4.2-5
pve-firmware: 3.4-2
pve-ha-manager: 3.3-4
pve-i18n: 2.7-2
pve-qemu-kvm: 6.2.0-10
pve-xtermjs: 4.16.0-1
qemu-server: 7.2-3
smartmontools: 7.2-pve3
spiceterm: 3.2-2
swtpm: 0.7.1~bpo11+1
vncterm: 1.7-1
zfsutils-linux: 2.1.4-pve1

Pakillo77 · Jun 13, 2022

This seems to be the problem:
https://lore.kernel.org/lkml/CAJ6HWG66HZ7raAa+YK0UOGLF+4O3JnzbZ+a-0j8GNixOhLk9dA@mail.gmail.com/T/

Pakillo77 · Jun 13, 2022

nmmn said:
We have same issue with AMD EPYC 7543P Processor... do you have AMD too? Intel is working fine...

What we do know now is that the problem occurs when migrating a VM from a newer CPU to an older one. It doesn't matter if they are Intel or AMD

toto · Jun 17, 2022

I confirm the problem with live migrating from new to old CPU

proxmox-ve: 7.2-1 (running kernel: 5.15.35-2-pve)
pve-manager: 7.2-4 (running version: 7.2-4/ca9d43cc)

John245 · Jun 19, 2022

Same issue here.

How much testing is done on the stable Enterprise Repository. I don't expect this fundamental issues in the software.

Anny idea when this will be solved?

---
John

John245 · Jun 19, 2022

Pakillo77 said:
Please, tell me if downgrading to pve-kernel-5.15.30-2 solves the problem for you too.

Thanks,

Issue solved here when downgrading.

---
John

nmmn · Jun 20, 2022

Pakillo77 said:
What we do know now is that the problem occurs when migrating a VM from a newer CPU to an older one. It doesn't matter if they are Intel or AMD

We have the Problem, when migrating from same CPU to same CPU...

Juan Pablo Abuyeres · Jun 30, 2022

Bitten here by the same problem :/

We subscribed to the enterprise repository to avoid this kind of problems :/

Randell · Jun 30, 2022

I'm just a freeloader running on consumer grade hardware (except for my SSD and nic cards) and I also have the same issue. One box has an I7-12700K in it, the other an I7-8700K and migrating a machine from the 12700K to the 8700K would cause it to lock up and I'd have to SSH into the node and force kill it.

The rollback fixed my issue
https://forum.proxmox.com/threads/p...on-linux-freeze-on-windows.109645/post-471557

Juan Pablo Abuyeres · Jun 30, 2022

Randell said:
I'm just a freeloader running on consumer grade hardware (except for my SSD and nic cards) and I also have the same issue. One box has an I7-12700K in it, the other an I7-8700K and migrating a machine from the 12700K to the 8700K would cause it to lock up and I'd have to SSH into the node and force kill it.

The rollback fixed my issue
https://forum.proxmox.com/threads/p...on-linux-freeze-on-windows.109645/post-471557

Did you have to rollback the older cpu node? or everything?

Randell · Jun 30, 2022

Juan Pablo Abuyeres said:
Did you have to rollback the older cpu node? or everything?

I rolled back both nodes.

Edit: Before rolling back, I could migrate from the 8700k to the 12700k w/o issue. So I migrated things off the 8700k and rolled it back. When I attempted to migrate from the 12700k to the 8700k so I could roll it back, they hung, so I don't think you can apply it to just a subset of nodes. *maybe* it could work on the newer cpu nodes, but from my observation, it won't work just being applied to the old cpu nodes.

[Proxmox 7.2-3 - CEPH 16.2.7] Migrating VMs hangs them (kernel panic on Linux, freeze on Windows)

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