Hi! See https://docs.xcp-ng.org/releases/release-8-3/#4k-native-disks and https://docs.xcp-ng.org/storage/#largeblock-sr Note that qcow2 format is supporting 4k natively, and it's in release candidate stage, maybe the right approach in a near future

Mentioning also @Team-Hypervisor-Kernel who now manages the drivers. Maybe it's related to https://github.com/xcp-ng-rpms/microsemi-aacraid/issues/2#issuecomment-3837183087 It looks like the switch to the vendor driver instead of the kernel built-in for 8.3 (initiated by XenServer, and that we followed at the time as it was probably made in order to support newer cards) was not without drawbacks. 0nelight created this issue in xcp-ng-rpms/microsemi-aacraid open Microsemi Adaptec Series-8 Card not working in XCP-NG 8.3 #2

Hi @champagnecharly , On the XO side, it seems that this PCI has an empty string ID, which doesn't enable us to delete it. We'll have to do some tests to find out how to prevent that. We might have trouble reproducing the issue, so would you mind helping us with the tests? You would need to add this piece of code on file xo-server/dist/xapi-object-to-xo.mjs before the line that start with if (isHvm) { (that should be near line 475) if ((_vm$attachedPcis = vm.attachedPcis) !== null && _vm$attachedPcis !== void 0 && _vm$attachedPcis.includes('')) { warn('Empty string PCI id:', otherConfig.pci); } then restart xo-server and look at the output of journalctl, there should be some lines looking like: 2026-01-30T09:26:17.763Z xo:server:xapi-objects-to-xo WARN Empty string PCI id:

@samuelolavo Yes, I do use NUT, but I don’t want to install any additional packet on XCP-ng. The way I found leverage the SSH authorized keys restrictions, and so you only need to change one file. Thanks for the link anyway

Does it work as you wanted now? If yes, probably something we can put in our official doc! Ping @thomas-dkmt

Hi, In those cases, my first bet is a memtest to check the RAM and CPU.

@TeddyAstie Sure thing: xl_dmesg.txt Dom0_dmesg.txt DomU_dmesg.txt

Also works with alt driver (broadcom-bnxt-en-alt-1.10.3_231.0.162.0-1.xcpng8.2.x86_64) in 8.2.1: # yum install broadcom-bnxt-en-alt # reboot # modinfo bnxt_en filename: /lib/modules/4.19.0+1/override/bnxt_en.ko version: 1.10.3-231.0.162.0 description: Broadcom NetXtreme-C/E/S network driver license: GPL srcversion: 533BB7E5866E52F63B9ACCB alias: pci:v000014E4d0000D800sv*sd*bc*sc*i* ... alias: pci:v000014E4d00001604sv*sd*bc*sc*i* depends: devlink,ipv6 retpoline: Y name: bnxt_en vermagic: 4.19.0+1 SMP mod_unload modversions # dmesg|grep bnxt_en [ 15.047312] Broadcom NetXtreme-C/E/S driver bnxt_en v1.10.3-231.0.162.0 [ 15.048046] bnxt_en 0001:5c:00.0 (unnamed net_device) (uninitialized): Device requests max timeout of 60 seconds, may trigger hung task watchdog [ 15.215453] bnxt_en 0001:5c:00.0 eth0: Broadcom BCM57508 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet found at mem 2affff010000, node addr 40:5b:7f:6e:22:00 [ 15.215469] bnxt_en 0001:5c:00.0: 252.048 Gb/s available PCIe bandwidth (16 GT/s x16 link) [ 15.216606] bnxt_en 0001:5c:00.1 (unnamed net_device) (uninitialized): Device requests max timeout of 60 seconds, may trigger hung task watchdog [ 15.265361] bnxt_en 0001:5c:00.1 eth1: Broadcom BCM57508 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet found at mem 2affff000000, node addr 40:5b:7f:6e:22:01 [ 15.265372] bnxt_en 0001:5c:00.1: 252.048 Gb/s available PCIe bandwidth (16 GT/s x16 link) [ 15.350702] bnxt_en 0001:5c:00.1 side-5183-eth1: renamed from eth1 [ 15.385121] bnxt_en 0001:5c:00.0 side-3345-eth0: renamed from eth0 [ 17.400142] bnxt_en 0001:5c:00.0 eth0: renamed from side-3345-eth0 [ 17.493640] bnxt_en 0001:5c:00.1 eth1: renamed from side-5183-eth1 [ 20.614447] bnxt_en 0001:5c:00.1 eth1: NIC Link is Up, 100000 Mbps (NRZ) full duplex, Flow control: none [ 20.614454] bnxt_en 0001:5c:00.1 eth1: FEC autoneg off encoding: None [ 21.113687] bnxt_en 0001:5c:00.0 eth0: NIC Link is Up, 100000 Mbps (NRZ) full duplex, Flow control: ON - receive & transmit [ 21.113694] bnxt_en 0001:5c:00.0 eth0: FEC autoneg off encoding: None

hardware_report_2025-12-12_17-20-47.txt lspci.txt mlx.txt pci.txt Diagnostic logs

@hoehnp we're aiming at sharing a very first public version before end of year, but don't hope for it to be anything complete or stable

@Joe_dev I have a MF unit with similar igpu. I was not able to get it working under any virtualization platform. There is something about amd igpu that makes passing it hard. I believe some have had it working under proxmox with custom kernel and video bios. I never bothered trying all that out so i just gave up on the unit.

Maybe that's my issue ? Investing this part # journalctl -k | grep -i nvidia [image: 1763219509282-aaed86b6-1384-434e-ac5d-bca510405f33-image.png]

Since GPU passthrough is involved I'd ping @Team-Hypervisor-Kernel

@ph7 huh, that is weird. I'll try to troubleshoot more over the weekend. Thanks for pointing it out. @olivierlambert said in Upgraded RAM, It get's detected but not used. Any ideas?: I would first upgrade the BIOS of the motherboard. Consumer grade hardware is pretty buggy in general when you are using "advanced" features, sadly. That's the first thing i tried, no luck unfortunately

Hi, Are you sure your GPU is correctly fed via the power connector?

What GPU do you have? I thought I read something about NVidia's newer stuff having vGPU without the expensive licensing and hardware. But it's possible I'm just conflating that with the increase in concurrent NVENC encodes. On the bright side, you can always get a cheap GPU and just do passthrough with it. I do that for my Jellyfin server with a 2060, it's very easy to do in XCP-ng now and works super reliably.

@andSmv Thanks for taking a look at it. It's not really needed for a modern platform.

Reboot seems to have fixed it and made it visible. Leaving this post up so others have all the commands in one place. [14:15 cloud ~]# ethtool -i eth5 driver: i40e version: 2.26.8 firmware-version: 9.50 0x8000f255 23.0.8 expansion-rom-version: bus-info: 0000:5e:00.1 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: yes supports-priv-flags: yes