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Hi Jan,
Yes, there's no issue if CPUs are the same.
VMs hang when CPUs are of different enough generation, even being of the
same brand and using KVM64 vCPU.
El 7/11/22 a las 22:59, Jan Vlach escribió:
Hi,
For what’s it worth, live VM migration with Linux VMs with various debian
versions work here just fine. I’m using virtio for networking and virtio scsi
for disks. (The only version where I had problems was debian6 where the kernel
does not support virtio scsi and megaraid sas 8708EM2 needs to be used. I get
kernel panic in mpt_sas on thaw after migration.)
We're running 5.15.60-1-pve on three node cluster with AMD EPYC 7551P 32-Core
Processor. These are supermicros with latest bios (latest microcode?) and BMC
Storage is local ZFS pool, backed by SSDS in striped mirrors (4 devices on each
node). Migration has dedicated 2x 10GigE LACP and dedicated VLAN on switch
stack.
I have more nodes with EPYC3/Milan on the way, so I’ll test those later as well.
What does your cluster look hardware-wise? What are the problems you experienced
with VM migratio on 5.13->5.19?
Thanks,
JV
On 7. 11. 2022, at 14:40, Eneko Lacunza via
pve-user<[email protected]> wrote:
From: Eneko Lacunza<[email protected]>
Subject: Re: [PVE-User] VMs hung after live migration - Intel CPU
Date: 7 November 2022 14:40:07 CET
To: Mark Schouten<[email protected]>, Proxmox VE user
list<[email protected]>
Hi,
Sadly I'm not sure what is best. For most of the clusters we admin, I have
decided to stay in 5.13 (pinning that version with proxmox-boot-tool) because
5.19 seems will receive much more changes and it will be more unstable...
Cheers
El 7/11/22 a las 13:56, Mark Schouten escribió:
Hi,
Thanks. What would you suggest? Downgrading to 5.13 ?
--
Mark Schouten
CTO, Tuxis B.V. |https://www.tuxis.nl/
<[email protected]> | +31 318 200208
*From: * Eneko Lacunza<[email protected]>
*To: * Mark Schouten<[email protected]>, Proxmox VE user
list<[email protected]>
*Sent: * 2022-11-07 9:23
*Subject: * Re: [PVE-User] VMs hung after live migration - Intel CPU
Hi,
5.15 has been a disaster for us, issues seem to have no end.
Frankly, I don't understand how can it be the official supported
kernel in PVE 7.2 right now.
Our tests with 5.19 in a pair of nodes (in another cluster) seem
good, but I don't think 5.13 -> 5.19 migration is working well
either. Both kernels not being the "official" one, I'm unable to
decide what to do with our clusters...
This has been ongoing for some months... :-(
I see 5.15.64 has been promoted to enterprise repo this weekend,
no idea if any attempt to fix live migration issues is included...
Thanks
El 6/11/22 a las 9:04, Mark Schouten escribió:
Hi,
I’ve seen the same behavior between two AMD cpu’s with the -60 kernel. One
of the vm’s the ‘crashed’ even started working after migrating back again..
I’m probably going to 5.19, I’ve heard other issues with 5.15 as well
(CephFS client issues).
Mark Schouten
Op 3 nov. 2022 om 17:55 heeft Eneko Lacunza via
pve-user<[email protected]> <mailto:[email protected]>
het volgende geschreven:
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Eneko Lacunza
Zuzendari teknikoa | Director técnico
Binovo IT Human Project
Tel. +34 943 569 206 |https://www.binovo.es <https://www.binovo.es>
Astigarragako Bidea, 2 - 2º izda. Oficina 10-11, 20180 Oiartzun
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<https://www.youtube.com/user/CANALBINOVO>
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<https://www.linkedin.com/company/37269706/>
Eneko Lacunza
Zuzendari teknikoa | Director técnico
Binovo IT Human Project
Tel. +34 943 569 206 |https://www.binovo.es
Astigarragako Bidea, 2 - 2º izda. Oficina 10-11, 20180 Oiartzun
https://www.youtube.com/user/CANALBINOVO
https://www.linkedin.com/company/37269706/
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https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
Eneko Lacunza
Zuzendari teknikoa | Director técnico
Binovo IT Human Project
Tel. +34 943 569 206 |https://www.binovo.es
Astigarragako Bidea, 2 - 2º izda. Oficina 10-11, 20180 Oiartzun
https://www.youtube.com/user/CANALBINOVO
https://www.linkedin.com/company/37269706/
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