Proxmox 5.1 Minor Downgrade

[Jospeh Huber]

Hi,

because of this problem here "Nodes with Questionmark" one of our clusters is in a unusable state:
https://forum.proxmox.com/threads/node-with-question-mark.41180/page-2#post-202390

Since there is no information from ProxMox if there is a fix planned and when, and none of the workarounds are helping ... we need to look for other solutions:
Is it possible to do a minor downgrade and install a specific version of ProxMox?
Is it possible to do the downgrade only for the nodes with problems or only for all cluster nodes?
The affected version is
proxmox-ve: 5.1-41 (running kernel: 4.13.13-6-pve)
pve-manager: 5.1-46 (running version: 5.1-46/ae8241d4)

 

[Vasu Sreekumar]

Kernel 4.15 is on test depository now.

You can test it now.

We loaded new Kernel 4.15 in our proxmox.

Created 5 LXC guests, created cron to stop and start all 5 guests every 5 minutes.

Now it passed 6 hours, no errors yet. We are still running the test.

CPU(s)24 x Intel(R) Xeon(R) CPU L5639 @ 2.13GHz (2 Sockets)
Kernel Version Linux 4.15.3-1-pve #1 SMP PVE 4.15.3-1 (Fri, 9 Mar 2018 14:45:34 +0100)
PVE Manager Version pve-manager/5.1-46/ae8241d4

With same setup 4.13 kernal Proxmox produced error within 30-40 minutes.

 

[Jospeh Huber]

Kernel 4.15 is on test depository now.

You can test it now.

PVE Manager Version pve-manager/5.1-46/ae8241d4

With same setup 4.13 kernal Proxmox produced error within 30-40 minutes.

Thanks for the hint, it is also described in this post here...
https://forum.proxmox.com/threads/4-15-based-test-kernel-for-pve-5-x-available.42097/

...but if you have mixed environments with quemu and lxc it is not without any risks. (quemu is possible broken...)
I will test it...


There is also a answer for my question
when does it get into the stable repository ?
>As soon as we consider it as stable.

 

[Vasu Sreekumar]

Only LXC has issue.

KVM works fine in 4.13.

I hope in 2 days they will release as stable version.

 

[Jospeh Huber]

Everything works well in our Testlab with the new 4.15. Testkernel.

We have also implemented crontab lxc restart solution with runs for almost 24 h without any problem...

 

[Vasu Sreekumar]

Yes, I passed 36 hours no issues at at all with 4.15 kernel.

 

[Jospeh Huber]

Yes, I passed 36 hours no issues at at all with 4.15 kernel.

I think we have already passed by your testlab ... our restart is every 2mins

 

[Vasu Sreekumar]

I set it to 10 minutes now.

My SSD may wear out.

I have 5 LXCs.