From: Jan Pechek via pve-user <pve-user@lists.proxmox.com>
To: "DERUMIER, Alexandre" <alexandre.derumier@groupe-cyllene.com>
Cc: Jan Pechek <jan.pechek@daktela.com>,
"pve-user@lists.proxmox.com" <pve-user@lists.proxmox.com>
Subject: Re: [PVE-User] Hardcoded startup RAM for QEMU memory hotplug
Date: Tue, 13 Jan 2026 10:33:38 +0100 [thread overview]
Message-ID: <mailman.324.1768296838.353.pve-user@lists.proxmox.com> (raw)
In-Reply-To: <1b5536bef426ee07ef087fc76ec1a7ca196a5afa.camel@groupe-cyllene.com>
[-- Attachment #1: Type: message/rfc822, Size: 7125 bytes --]
From: Jan Pechek <jan.pechek@daktela.com>
To: "DERUMIER, Alexandre" <alexandre.derumier@groupe-cyllene.com>
Cc: "pve-user@lists.proxmox.com" <pve-user@lists.proxmox.com>
Subject: Re: [PVE-User] Hardcoded startup RAM for QEMU memory hotplug
Date: Tue, 13 Jan 2026 10:33:38 +0100
Message-ID: <CAHQqQDZkUi60z3CsHc5-WVtPEoBETZCHRtqhF197nbR50dQ5xQ@mail.gmail.com>
Hi,
Looking at the code, it's 1024MB * the number of sockets, so adding sockets
might be workaround. Thanks for the idea. Another workaround might be to
simply disable memory hotplug before leapp.
The kernel option "memhp_default_state=online" also works. However, I think
the ability to configure the startup RAM size in Proxmox would be nice.
On Thu, Jan 8, 2026 at 4:21 PM DERUMIER, Alexandre <
alexandre.derumier@groupe-cyllene.com> wrote:
> hi currently no, but it's related to the number of cpu sockets of the
> vm. (it's 512mb by socket if I remember correctly).
>
> so, you can try a vm with 4 sockets.
>
>
> you can also add "memhp_default_state=online" to kernel boot option, it
> should auto enable the hotplug memory dimm when kernel boot
>
>
> -------- Message initial --------
> De: Jan Pechek via pve-user <pve-user@lists.proxmox.com>
> Répondre à: Proxmox VE user list <pve-user@lists.proxmox.com>
> À: pve-user@lists.proxmox.com
> Cc: Jan Pechek <jan.pechek@daktela.com>
> Objet: [PVE-User] Hardcoded startup RAM for QEMU memory hotplug
> Date: 08/01/2026 14:43:34
>
> _______________________________________________
> pve-user mailing list
> pve-user@lists.proxmox.com
> https://antiphishing.vadesecure.com/v4?f=ODlJNFRJTjZBcWFlaWxQaCCCfKFVnu
> mwdchN4vpTQ37VVnHbAe0-
> uLaq4GRZbkYvBbl2pqUJSOyVY2GhvAcSRg&i=MUo0RzFIRTVvbFhYVGloQqpJQ0nHicCJvq
> kbuHR5-
> 5Q&k=b1p5&r=cFdGNHFjVENnWDEzUVliSYiC92oq8d703C2vrBtDKIQQ2JpsHhTCAL84sa9
> nPXth0ZxP0R68yhAvbVSThpqxug&s=483fcb0eca7ea10b6dc41ce29e666d196b3b3eee2
> f0c8d0e20c168f59c8b32ef&u=https%3A%2F%2Flists.proxmox.com%2Fcgi-
> bin%2Fmailman%2Flistinfo%2Fpve-user
>
[-- Attachment #2: Type: text/plain, Size: 157 bytes --]
_______________________________________________
pve-user mailing list
pve-user@lists.proxmox.com
https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
next prev parent reply other threads:[~2026-01-13 9:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-08 13:43 Jan Pechek via pve-user
2026-01-08 15:21 ` DERUMIER, Alexandre via pve-user
[not found] ` <1b5536bef426ee07ef087fc76ec1a7ca196a5afa.camel@groupe-cyllene.com>
2026-01-13 9:33 ` Jan Pechek via pve-user [this message]
[not found] ` <CAHQqQDZkUi60z3CsHc5-WVtPEoBETZCHRtqhF197nbR50dQ5xQ@mail.gmail.com>
2026-01-13 10:46 ` DERUMIER, Alexandre via pve-user
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=mailman.324.1768296838.353.pve-user@lists.proxmox.com \
--to=pve-user@lists.proxmox.com \
--cc=alexandre.derumier@groupe-cyllene.com \
--cc=jan.pechek@daktela.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.