Search results

  1. M

    How to share a single SSD for both VMs and plain "directory" storage

    I have a 4TB disk I'd like to use for VMs/LXCs, as well as just local storage (mostly to mount to the LXCs - as a form of shared storage). Ideally I don't want to have to arbitrarily partition the drive, just dynamically allow either the VMs/LXCs use as much as they need, and the rest to be...
  2. M

    [SOLVED] No console output after "initialising ramdisk" after upgrade from 8.0 to 8.1

    After upgrading from 8.0 to 8.1, I only got a couple of log lines in the console after rebooting. It stops at the message about initialising ramdisk. I therefore assumed it had hung, rebooted fine in a 6.2 kernel, and checked previous boot logs, only to find no errors. I then rebooted with the...
  3. M

    Two seemingly identical Windows 10 VMs. 20% vs 2% host CPU while VM idle

    Host: Proxmox 8.0.4, Ryzen 5700x, 64GB Both Guest VMs: Windows 10, all latest updates. 32 GB assigned. Both with 'host' CPU type. Both same virtual SSD settings When I run one of the VMs, and let it settle down with task manage open, I see it idling as expected. Looking at 'top' on the host I...
  4. M

    [SOLVED] Suddenly getting "No more image in the PCI ROM" in logs, passthrough still works but no Tiancore boot

    EDIT - Fixed turning of CSM support (somehow it turned on randomly in BIOS). However, still want to understand the behaviour Original Post: I've suddenly started noticing, when booting a Windows 10 VM, that I don't see the Proxmox/Tianco core boot screen. I do however still see Windows once...
  5. M

    Podman in LXC - what do overlay "not support file handles" and "conflicting options: userxattr,metacopy" mean?

    I usually run Ubuntu server in my LXC containers, but wanting to try Podman, which really only works well on a Redhat/Fedora base. Even though this is working, when I run podman commands in the LXC guest, I see two errors/warnings in the host logs: overlayfs: conflicting options...
  6. M

    Can I reduce min frequency of Ryzen CPU from 2200MHz

    I just upgrade my CPU from a Ryzen 5700G to a 5900X, and noticed the idle frequency rocketed from 900MHz to 2200MHz. As far as I know, on the 5700G the 900MHz was even there with default Proxmox settings, which I believe is "performance" (though I don't know where that's set). Anyway, I tried...
  7. M

    Passed-through nvme: poor performance on 4k random writes with higher queues

    I have a Firecuda 530 1TB, which can get ~660 MB/s on 4k random writes with a 32 queue depth. However, I'm only seeing 260 when the whole disk is passed through to a windows VM. All other figures (including read 4k random, and sequential) are fine. The VM itself has 12 threads and plenty of...
  8. M

    Trying to build PVE kernel 5.13.19-6 - but git branch has set 5.13.19-14

    Per title, I'm trying to build the kernel with a quirk patch enabled. root@pve:~/sources/pve-kernel# uname -a Linux pve 5.13.19-6-pve #1 SMP PVE 5.13.19-15 (Tue, 29 Mar 2022 15:59:50 +0200) x86_64 GNU/Linux I've thus checked out...
  9. M

    What processes/resources are used while doing a VM backup in "stop" mode

    I'm having an issue with my nvme controller going offline https://forum.proxmox.com/threads/proxmox-just-died-with-nvme-nvme0-controller-is-down-will-reset-csts-0xffffffff-pci_status-0x10.88604/page-2#post-471159 As you'll see in that thread, there are lots of possible causes, but I've now...
  10. M

    Proxmox 7.2 / Kernel 5.15 - safe yet for Nvidia VFIO passthrough?

    I've seen a number of threads now about issues with Nvidia GPU passthrough after upgrading to Proxmox 7.2 and/or kernel 5.15. There's a few workarounds, with mixed reports about what works, but I'm wondering if it's likely to be fixed properly soon, or whether I should just go ahead and update now.
  11. M

    How can I find the differences in Proxmox package updates please? For example pve-qemu-kvm/stable 6.2.0-4 to 6.2.0-5?

    Whenever I update, I'm always curious what the changes are in the packages. I'm especially interested in KVM/qemu changes, in case there are fixes that might improve performance. Is there an easy way to tell please? EDIT - Actually, in this specific case, I think I did eventually find it...
  12. M

    I'm extremely confused about interaction of network hardware checksum settings on the Proxmox host side and BSD/OPNsense guest side with virtio.

    I'm having difficulty getting good LAN and WAN performance at the same time on a virtualised opnsense firewall. I'm unsure if it's a Realtek problem, an Proxmox/KVM problem, or a FreeBSD/OPNsense problem (or combination thereof) What I know is that if I enable CRC in the OPNsense VM, then: *...
  13. M

    Proxmox web UI memory leak - starts at 200MB, gradually increases to gigabytes

    I've noticed in both Safari and Firefox, and both macOS and Windows, the Proxmox web ui has some kind of memory leak. It starts of around 200MB, but will grow over a few days to >1GB. I like to just leave that tab pinned - is there some known fix for this? Are there any logs I can provide as...
  14. M

    VIDEO_DXGKRNL_FATAL_ERROR in a Windows VM - workarounds?

    Just to be clear, Promox 7 is working very well for me. I'm posting here because I know there's lots of Qemu experience. I'm finding using a particular tool called AquaSuite causes my Windows 10 VM to crash with VIDEO_DXGKRNL_FATAL_ERROR, but only after 10 minutes or so. It works fine...
  15. M

    My Promox server shutdown cleanly, without me asking

    I don't understand why my Promox server shutdown. In the logs I see the 'replication runner' over and over, until then I see things are shutting down cleanly. Thing is, I don't understand what triggered that? 103 is a Windows VM. I see some UPS messages, but UPS didn't lose power, and the...
  16. M

    Roadmap for EDK2/OVMF version?

    Hi I'm keen to try resizable bar in a Windows 10 guest with passed-through GPU. So far as I know this commit gets it into EDK2 (which if I understand correctly is the source for OVMF BIOS in Promox/QEMU): https://github.com/tianocore/edk2/pull/1351 It looks like Proxmox 6.4 has 2.2020 from...
  17. M

    [SOLVED] Windows 10 VMs using thin pool, both linked clones of same template. One with lower disk usage has much higher backup size

    I'm backing up two Windows 10 VMs, both from the same linked Windows VM clone, and both quite recent. Both are linked clones of the same template, and have only been setup for a few days. I'm taking both backups using the same ZSTD / snapshot settings, and both while the VMs are shut down (so...
  18. M

    Proxmox just died with: nvme nvme0: controller is down; will reset: CSTS=0xffffffff, PCI_STATUS=0x10

    I was playing a game on a Windows VM, and it suddenly paused. I checked the Proxmox logs, and saw this: [268690.209099] nvme nvme0: controller is down; will reset: CSTS=0xffffffff, PCI_STATUS=0x10 [268690.289109] nvme 0000:01:00.0: enabling device (0000 -> 0002) [268690.289234] nvme nvme0...
  19. M

    Does performance of linked clone get significantly worse with more and more guest OS updates?

    I've got linked clones working for both Linux and Windows 10 guests. However, I'm concerned that say one or two years down the line the cumulative updates in the linked clones (that aren't in the base image) will mean a significant performance penalty. Or does it just mean extra storage? Is...
  20. M

    Is there a host-passthrough vs host-model distinction in Proxmox? Can only see 'host'

    Generally with my Ryzen 3900x I'd use 'host-passthrough', but in Proxmox I only see 'host'. When I used 'host' in Proxmox, my Windows 10 VM crashed. It works with EPYC IBPB however. Which should I use?

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!