Recent content by masgo

  1. [TUTORIAL] Fix always high CPU frequency in proxmox host.

    My understanding of the pstate driver is that the frequency scaling is no longer done by an algorithm within the kernel but that the cpu determines how fast it should go. (but I might be wrong). Therefore you should only be able to force the driver if the cpu supports it. If it does, I would...
  2. Memory missing from VM

    Oh, I did not know about that 80% limit, there is also no hint in the documentation. But it all makes sense now. After rebooting the full 32 GB are available and it gets shrunken down to about 14 GB. At that point the host has exactly 80 % RAM free. How can I influence this? The server has...
  3. Memory missing from VM

    agent: 1 balloon: 1024 boot: cdn bootdisk: scsi1 cores: 2 cpu: host ide2: none,media=cdrom memory: 32768 name: testvm net0: virtio=52:54:00:19:f0:94,bridge=vmbr0,firewall=1,tag=19 numa: 1 onboot: 1 ostype: l26 protection: 1 scsi1: local-zfs:vm-403-disk-0,discard=on,size=18G scsihw...
  4. e1000 driver hang

    It seems to me that the problem is VLAN related. I used the same NIC for quite some time without problems. The problems started then I added VLANs to my setup. But this might be a coincidence, since I also did a PVE update at the same time. Anyways, thanks for your help. Since a used server...
  5. e1000 driver hang

    I tried this, and any other suggestion I could find, but the problems remained. They were less frequent with the tso gso workaround, but they still happened. Last week I gave up and switched it for a different NIC (Intel E43709-004 - Based on the Intel 82576 Chipset) the problems are gone.
  6. [TUTORIAL] Fix always high CPU frequency in proxmox host.

    This is probably not the cause for the driver selection. I have an Intel(R) Core(TM) i5-8400 CPU with Proxmox 7 and it also shows unknown in uname but uses pstate # uname -srvmpi Linux 5.13.19-4-pve #1 SMP PVE 5.13.19-9 (Mon, 07 Feb 2022 11:01:14 +0100) x86_64 unknown unknown # cpufreq-info...
  7. [TUTORIAL] Fix always high CPU frequency in proxmox host.

    I could not find a reason why it would not use p-state. It might somehow detect the cpu as incompatible, but it should be compatible. You could try to use grub-flags to enable it manually. For testing purposes you can change the flags at boot time from within the grub menu. They are gone after...
  8. [TUTORIAL] Fix always high CPU frequency in proxmox host.

    Sorry, I misunderstood your question. I guess the default depends on the kernel config used to build the kernel. One could override this default with boot flags in grub, but as far as I can see, PVE does not do this. The PVE kernel is maintained here:
  9. [TUTORIAL] Fix always high CPU frequency in proxmox host.

    You can use cpufreq-info to see which driver is currently used.
  10. [TUTORIAL] Fix always high CPU frequency in proxmox host.

    You might be missing something here. You have to distinguish between the intel_cpufreq driver and the intel_pstate driver. As seen below, you seem to use intel_cpufreq. For this driver, your claim is valid. This governor actually sets the CPU to the lowest frequency. I was talking about the...
  11. [SOLVED] Reinstall node in cluster

    Ich habe ein ähnliches Problem. Einer der Server im Cluster ist tot (Hardware-Fehler). Ich will den jetzt ersetzen, dabei würde ich gerne die IP und den Hostname des alten Servers verwenden. Wie gehe ich da am besten vor? Es müssen keine Daten, außer der IP, vom alten Server übernommen werden...
  12. [TUTORIAL] Fix always high CPU frequency in proxmox host.

    I think the package is called linux-cpupower in debian. Also the solution posted by H4R0 is quite easy and works well. For servers I want to be able to script the settings, which works well with cpufrequtils. I do not see the advantage of using cpupower apart from having nice dialogs...
  13. Proxmox Hosting? LXC Hosting?

    Stimmt, da habe ich vielleicht zu kompliziert gedacht. Ein Vzdump Backup reicht natürlich völlig. Aber gibt es Anbieter bei denen ich sowas leicht machen kann? Ich will ja nicht jedes mal aus einem Disk-Backup (wie es quasi jeder Hoster anbietet) mir eine VM erstellen müssen.
  14. Proxmox Hosting? LXC Hosting?

    Hallo, ich setze in einem eher kleineren mittelständischen Unternehmen Proxmox für die in-house IT ein. Nun sollen ein paar IT Dienste/Funktionen auch für Kunden angeboten werden. Derzeit entwickeln/testen wir das in einem LXC Container mit Debian 11 auf unserem kleinen Proxmox-Cluster. Wenn es...
  15. Memory missing from VM

    I have an Ubuntu 18.04 LTS VM running on PVE 7 which I assigned 32 GB of RAM and enabled ballooning. The VM does batch-processing and is using > 20 GB RAM for a few minutes, after which it goes back to use close to none (less then 500 MB); that's why ballooning is enabled. The strage part is...


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