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  • All news regarding Xen and XCP-ng ecosystem

    136 Topics
    4k Posts
    TeddyAstieT
    @gb.123 said in XCP-ng 8.3 updates announcements and testing: Here is the summary: If USB Keyboard & Mouse is passed-through along-with GPU: The GPU gets stuck in D3 state (on Shutdown/Restart of VM) (Classic GPU reset problem) If no vUSB is passed but GPU is passed through: The GPU works correctly and resets correctly (on Shutdown/Restart of VM) I have no clue what vUSB may change regarding GPU passthrough. When I run : $> lspci Extract of Output (Partial): 07:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b8 However, this controller does not show up when I run : xe pci-list Is it a bug that lspci & xe pci-list have different number of devices ? How can I pass this controller since xe pci-list does not show it so I can't get the UUID ? Will kernel parameters (like XCP-ng 8.2) work in this case ? Question for @Team-XAPI-Network regarding the filtering on PCI IDs. I don't think XAPI allows using arbitrary BDF, but I may be wrong. Is it safe to run on XCP-ng host ? echo 1 > /sys/bus/pci/rescan (I'm trying to find a way where the PCI card is reset by the host without complete reboot, though I am aware that the above command will not reset it.) Probably. But it's not going to change anything as the device doesn't completely leave the Dom0 when passed-through. FYI a function-level-reset is systematically performed by Xen when doing PCI passthrough, thus your device should be reset before entering another guest (aside reset bugs like you may have). Also is it advisable to use : xl pci-assignable-add 07:00.0 in XCP-ng 8.3 ? or is this method deprecated ? I don't think XAPI supports this PCI passthrough approach. This is a command which allows dynamically to remove a device from Dom0 and put it into "quarantine domain", so that it will be ready to passthrough it. Current XAPI uses the approach of having a set of "passthrough-able" devices at boot time by modifying the xen-pciback.hide kernel parameter, which does the same but at boot time.
  • Everything related to the virtualization platform

    1k Topics
    13k Posts
    D
    Hi @olivierlambert @bleader thank you both again for the detailed replies and suggestions. I’d like to provide a bit more context about our setup and situation: Situation Summary: We’re currently running XCP-ng 8.3 with Xen 4.17.5-13 on a mix of servers, including some older, obsolete hardware. Interestingly, XCP-ng 8.2 runs without issues on identical hardware configurations — no crashes, even under the same workloads. On this particular host, we’ve experienced 10 crashes so far, and in almost every case the crash happened while performing delta backups from Xen Orchestra. This seems to consistently trigger the issue under higher network load. We’ve already performed full memory tests (memtest86+) on this host, and the results came back clean — no memory errors found. The servers are currently physically located at a remote site, which makes immediate hands-on intervention difficult. We’re organizing a visit to the site to update the BIOS and potentially replace the Realtek NIC with a supported Intel NIC as suggested. This intervention will happen as soon as logistically possible. Question: Is there anything else you would recommend we check or do remotely in the meantime before our on-site intervention? And once we're physically on-site, aside from: Updating the BIOS Swapping NIC hardware is there anything else you’d recommend we inspect or collect while we’re there? I appreciate your help and guidance — and thank you again for pointing us in the right direction so quickly. ONE more important question which guest tools do you recommend for Win server 2019, 2022, windows 10 ? is 9.4.0 right one?
  • 3k Topics
    24k Posts
    tjkreidlT
    @gb.123 Interesting -- alert the XCP-ng team to take a closer look, if they haven't seen this already.
  • Our hyperconverged storage solution

    30 Topics
    653 Posts
    H
    @olivierlambert No, For once, i followed the installation step carefully ^^'
  • 30 Topics
    85 Posts
    GlitchG
    @Davidj-0 Merci pour le retour, j'utilisais aussi une Debian pour mon test ^^