@stormi Microcode updated on affected Gen11 i7. Running normally.

@gduperrey I jumped in all the way by mistake... I updated a wrong host, so I just did them all. Older AMD, Intel E3/E5, NUC11, etc. So far, so good. Add/migrate/backup/etc VMs are working as usual. Good for guest tools too, but mine are mostly Debian 7-11. Stuff is as usual so far.

I agree and I'll say it again, Thanks! It's not just Linux/Xen stuff. It is XCP-ng and XO that make everything work as a cohesive vertical open-source solution (some nice buzz words). Thanks to the Vates team and community that have built and support it. I look forward to ongoing continuous improvement and innovation!

@bleader Installed and running.

@bleader Updates running on several old and new intel machines (including microcode update). Working fine so far. Rolling Pool Reboot is a helpful feature.

@bleader I installed it on a bunch of busy hosts. All are fine, but none used PCI passthrough. The Rolling Pool Reboot in XO was very helpful.

@dinhngtu On a quick test, the ISO boots and installs. When the VM boots from the HD it crashes (and on reboots).

Updating XCP 8.3 with qemu-4.2.1-5.2.12.2~fixvwc1.1.xcpng8.3.x86_64 solves the issue and the installed windows image boots correctly without any additional changes.

@abudef @olivierlambert @thomas-dkmt I agree. I read block the same way... how about disable or prevent. (French? empêcher)

@julien-f @olivierlambert

Thanks for the ability to delete XO task logs feature! (XO commit f6e6e)

@gduperrey Installed and running on Intel systems, and Zen3 system that sees the microcode update.

@kagbasi-ngc HP DL360 G9 and newer will work...

@Danp I have also seen this problem with XO, but currently do not have an example to test. This was an issue on both local SR and shared SR on NFS.

@dcskinner The correct link is: xcp-ng-8.3.0-20250606.2.iso

@olivierlambert The December 2025 blog post has the wrong link...

@ditzy-olive You can not join a new XCP 8.3 host to an existing 8.2 pool.

You can setup your new host as 8.2 and join it to the 8.2 pool and then upgrade everything to 8.3 using the correct procedure.... Or as you stated. Add the new 8.3 host to the upgraded 8.3 pool.

@Pilow @olivierlambert I have the same issue with suspended VMs restarting without my request. It happens during some host upgrades/reboots or NFS storage reconnects.

@McHenry You can force halt the power state of each VM using vm-reset-powerstate. Then restart the VM on another host, assuming they have shared storage available on the other host.

@joeymorin That's correct. They need time to coalesce after snapshots change. Length of 1 is normal. They should clear up after a few minutes.

@olivierlambert More results:

xe host-call-plugin host-uuid=<UUID> plugin=ipmitool.py fn=get_all_sensors

HP DL360 G8:

[{"name": "UID Light", "value": "0x00", "event": "ok"}, {"name": "Sys. Health LED", "value": "no reading", "event": "ns"}, {"name": "01-Inlet Ambient", "value": "18 degrees C", "event": "ok"}, {"name": "02-CPU 1", "value": "40 degrees C", "event": "ok"}, {"name": "03-CPU 2", "value": "40 degrees C", "event": "ok"}, {"name": "04-P1 DIMM 1-6", "value": "27 degrees C", "event": "ok"}, {"name": "05-P1 DIMM 7-12", "value": "26 degrees C", "event": "ok"}, {"name": "06-P2 DIMM 1-6", "value": "29 degrees C", "event": "ok"}, {"name": "07-P2 DIMM 7-12", "value": "28 degrees C", "event": "ok"}, {"name": "08-P1 Mem Zone", "value": "27 degrees C", "event": "ok"}, {"name": "09-P1 Mem Zone", "value": "29 degrees C", "event": "ok"}, {"name": "10-P2 Mem Zone", "value": "29 degrees C", "event": "ok"}, {"name": "11-P2 Mem Zone", "value": "26 degrees C", "event": "ok"}, {"name": "12-HD Max", "value": "35 degrees C", "event": "ok"}, {"name": "13-Chipset 1", "value": "44 degrees C", "event": "ok"}, {"name": "14-Chipset1 Zone", "value": "32 degrees C", "event": "ok"}, {"name": "15-P/S 1 Inlet", "value": "27 degrees C", "event": "ok"}, {"name": "16-P/S 1 Zone", "value": "29 degrees C", "event": "ok"}, {"name": "17-P/S 2 Inlet", "value": "26 degrees C", "event": "ok"}, {"name": "18-P/S 2 Zone", "value": "28 degrees C", "event": "ok"}, {"name": "19-PCI #1", "value": "disabled", "event": "ns"}, {"name": "20-PCI #2", "value": "disabled", "event": "ns"}, {"name": "21-VR P1", "value": "27 degrees C", "event": "ok"}, {"name": "22-VR P2", "value": "31 degrees C", "event": "ok"}, {"name": "23-VR P1 Mem", "value": "24 degrees C", "event": "ok"}, {"name": "24-VR P1 Mem", "value": "23 degrees C", "event": "ok"}, {"name": "25-VR P2 Mem", "value": "26 degrees C", "event": "ok"}, {"name": "26-VR P2 Mem", "value": "25 degrees C", "event": "ok"}, {"name": "27-VR P1Mem Zone", "value": "23 degrees C", "event": "ok"}, {"name": "28-VR P1Mem Zone", "value": "22 degrees C", "event": "ok"}, {"name": "29-VR P2Mem Zone", "value": "26 degrees C", "event": "ok"}, {"name": "30-VR P2Mem Zone", "value": "24 degrees C", "event": "ok"}, {"name": "31-HD Controller", "value": "58 degrees C", "event": "ok"}, {"name": "32-HD Cntlr Zone", "value": "37 degrees C", "event": "ok"}, {"name": "33-PCI 1 Zone", "value": "31 degrees C", "event": "ok"}, {"name": "34-PCI 1 Zone", "value": "33 degrees C", "event": "ok"}, {"name": "35-LOM Card", "value": "53 degrees C", "event": "ok"}, {"name": "36-PCI 2 Zone", "value": "35 degrees C", "event": "ok"}, {"name": "37-System Board", "value": "33 degrees C", "event": "ok"}, {"name": "38-System Board", "value": "30 degrees C", "event": "ok"}, {"name": "39-Sys Exhaust", "value": "31 degrees C", "event": "ok"}, {"name": "40-Sys Exhaust", "value": "33 degrees C", "event": "ok"}, {"name": "41-Sys Exhaust", "value": "33 degrees C", "event": "ok"}, {"name": "42-SuperCAP Max", "value": "22 degrees C", "event": "ok"}, {"name": "Fan Block 1", "value": "39.20 percent", "event": "ok"}, {"name": "Fan Block 2", "value": "39.20 percent", "event": "ok"}, {"name": "Fan Block 3", "value": "39.20 percent", "event": "ok"}, {"name": "Fan Block 4", "value": "39.20 percent", "event": "ok"}, {"name": "Fan Block 5", "value": "39.20 percent", "event": "ok"}, {"name": "Fan Block 6", "value": "39.20 percent", "event": "ok"}, {"name": "Fan Block 7", "value": "39.20 percent", "event": "ok"}, {"name": "Fan Block 8", "value": "39.20 percent", "event": "ok"}, {"name": "Power Supply 1", "value": "45 Watts", "event": "ok"}, {"name": "Power Supply 2", "value": "50 Watts", "event": "ok"}, {"name": "Power Meter", "value": "128 Watts", "event": "ok"}, {"name": "Power Supplies", "value": "0x00", "event": "ok"}, {"name": "Fans", "value": "0x00", "event": "ok"}, {"name": "Memory", "value": "0x00", "event": "ok"}, {"name": "C1 P1I Bay 1", "value": "0x01", "event": "ok"}, {"name": "C1 P1I Bay 2", "value": "0x01", "event": "ok"}, {"name": "C1 P1I Bay 3", "value": "0x01", "event": "ok"}, {"name": "C1 P1I Bay 4", "value": "0x01", "event": "ok"}, {"name": "C1 P2I Bay 5", "value": "0x01", "event": "ok"}, {"name": "C1 P2I Bay 6", "value": "0x01", "event": "ok"}, {"name": "C1 P2I Bay 7", "value": "0x01", "event": "ok"}, {"name": "C1 P2I Bay 8", "value": "0x01", "event": "ok"}]

HP DL360 G9:

[{"name": "UID", "value": "0x01", "event": "ok"}, {"name": "Sys Health LED", "value": "0x00", "event": "ok"}, {"name": "01-Inlet Ambient", "value": "22 degrees C", "event": "ok"}, {"name": "02-CPU 1", "value": "40 degrees C", "event": "ok"}, {"name": "03-CPU 2", "value": "40 degrees C", "event": "ok"}, {"name": "04-P1 DIMM 1-6", "value": "disabled", "event": "ns"}, {"name": "05-P1 DIMM 7-12", "value": "31 degrees C", "event": "ok"}, {"name": "06-P2 DIMM 1-6", "value": "disabled", "event": "ns"}, {"name": "07-P2 DIMM 7-12", "value": "30 degrees C", "event": "ok"}, {"name": "08-HD Max", "value": "35 degrees C", "event": "ok"}, {"name": "09-Exp Bay Drive", "value": "disabled", "event": "ns"}, {"name": "10-Chipset", "value": "37 degrees C", "event": "ok"}, {"name": "11-PS 1 Inlet", "value": "32 degrees C", "event": "ok"}, {"name": "12-PS 2 Inlet", "value": "27 degrees C", "event": "ok"}, {"name": "13-VR P1", "value": "36 degrees C", "event": "ok"}, {"name": "14-VR P2", "value": "36 degrees C", "event": "ok"}, {"name": "15-VR P1 Mem", "value": "29 degrees C", "event": "ok"}, {"name": "16-VR P1 Mem", "value": "29 degrees C", "event": "ok"}, {"name": "17-VR P2 Mem", "value": "31 degrees C", "event": "ok"}, {"name": "18-VR P2 Mem", "value": "30 degrees C", "event": "ok"}, {"name": "19-PS 1 Internal", "value": "40 degrees C", "event": "ok"}, {"name": "20-PS 2 Internal", "value": "40 degrees C", "event": "ok"}, {"name": "21-PCI 1", "value": "disabled", "event": "ns"}, {"name": "22-PCI 2", "value": "disabled", "event": "ns"}, {"name": "23-PCI 3", "value": "disabled", "event": "ns"}, {"name": "24-HD Controller", "value": "53 degrees C", "event": "ok"}, {"name": "25-LOM Card", "value": "45 degrees C", "event": "ok"}, {"name": "26-LOM", "value": "disabled", "event": "ns"}, {"name": "27-Front Ambient", "value": "24 degrees C", "event": "ok"}, {"name": "28-P/S 2 Zone", "value": "29 degrees C", "event": "ok"}, {"name": "29-Battery Zone", "value": "29 degrees C", "event": "ok"}, {"name": "30-iLO Zone", "value": "35 degrees C", "event": "ok"}, {"name": "31-PCI 1 Zone", "value": "31 degrees C", "event": "ok"}, {"name": "32-PCI 2 Zone", "value": "30 degrees C", "event": "ok"}, {"name": "33-PCI 3 Zone", "value": "29 degrees C", "event": "ok"}, {"name": "34-HD Cntlr Zone", "value": "32 degrees C", "event": "ok"}, {"name": "35-I/O Zone", "value": "29 degrees C", "event": "ok"}, {"name": "36-Storage Batt", "value": "23 degrees C", "event": "ok"}, {"name": "37-Fuse", "value": "30 degrees C", "event": "ok"}, {"name": "Fan 1", "value": "19.60 percent", "event": "ok"}, {"name": "Fan 1 DutyCycle", "value": "19.60 percent", "event": "ok"}, {"name": "Fan 1 Presence", "value": "0x32", "event": "ok"}, {"name": "Fan 2", "value": "15.68 percent", "event": "ok"}, {"name": "Fan 2 DutyCycle", "value": "15.68 percent", "event": "ok"}, {"name": "Fan 2 Presence", "value": "0x28", "event": "ok"}, {"name": "Fan 3", "value": "19.60 percent", "event": "ok"}, {"name": "Fan 3 DutyCycle", "value": "19.60 percent", "event": "ok"}, {"name": "Fan 3 Presence", "value": "0x32", "event": "ok"}, {"name": "Fan 4", "value": "19.60 percent", "event": "ok"}, {"name": "Fan 4 DutyCycle", "value": "19.60 percent", "event": "ok"}, {"name": "Fan 4 Presence", "value": "0x32", "event": "ok"}, {"name": "Fan 5", "value": "19.60 percent", "event": "ok"}, {"name": "Fan 5 DutyCycle", "value": "19.60 percent", "event": "ok"}, {"name": "Fan 5 Presence", "value": "0x32", "event": "ok"}, {"name": "Fan 6", "value": "19.60 percent", "event": "ok"}, {"name": "Fan 6 DutyCycle", "value": "19.60 percent", "event": "ok"}, {"name": "Fan 6 Presence", "value": "0x32", "event": "ok"}, {"name": "Fan 7", "value": "19.60 percent", "event": "ok"}, {"name": "Fan 7 DutyCycle", "value": "19.60 percent", "event": "ok"}, {"name": "Fan 7 Presence", "value": "0x32", "event": "ok"}, {"name": "Power Supply 1", "value": "50 Watts", "event": "ok"}, {"name": "PS 1 Output", "value": "50 Watts", "event": "ok"}, {"name": "PS 1 Presence", "value": "0x0a", "event": "ok"}, {"name": "Power Supply 2", "value": "55 Watts", "event": "ok"}, {"name": "PS 2 Output", "value": "55 Watts", "event": "ok"}, {"name": "PS 2 Presence", "value": "0x0b", "event": "ok"}, {"name": "Power Meter", "value": "110 Watts", "event": "ok"}, {"name": "PwrMeter Output", "value": "110 Watts", "event": "ok"}, {"name": "Power Supplies", "value": "0x00", "event": "ok"}, {"name": "Fans", "value": "0x00", "event": "ok"}, {"name": "Megacell Status", "value": "0x00", "event": "ok"}, {"name": "Memory Status", "value": "0x00", "event": "ok"}, {"name": "C1 P1I Bay 1", "value": "0x01", "event": "ok"}, {"name": "C1 P2I Bay 5", "value": "0x01", "event": "ok"}]

HP DL360 G10:

[{"name": "UID", "value": "0x00", "event": "ok"}, {"name": "SysHealth_Stat", "value": "0x00", "event": "ok"}, {"name": "01-Inlet Ambient", "value": "18 degrees C", "event": "ok"}, {"name": "02-CPU 1", "value": "40 degrees C", "event": "ok"}, {"name": "03-CPU 2", "value": "40 degrees C", "event": "ok"}, {"name": "04-P1 DIMM 1-6", "value": "28 degrees C", "event": "ok"}, {"name": "05-PMM 1-6", "value": "disabled", "event": "ns"}, {"name": "06-P1 DIMM 7-12", "value": "26 degrees C", "event": "ok"}, {"name": "07-PMM 7-12", "value": "disabled", "event": "ns"}, {"name": "08-P2 DIMM 1-6", "value": "26 degrees C", "event": "ok"}, {"name": "09-PMM 1-6", "value": "disabled", "event": "ns"}, {"name": "10-P2 DIMM 7-12", "value": "26 degrees C", "event": "ok"}, {"name": "11-PMM 7-12", "value": "disabled", "event": "ns"}, {"name": "12-HD Max", "value": "35 degrees C", "event": "ok"}, {"name": "13-Exp Bay Drive", "value": "disabled", "event": "ns"}, {"name": "14-Stor Batt 1", "value": "21 degrees C", "event": "ok"}, {"name": "15-Front Ambient", "value": "22 degrees C", "event": "ok"}, {"name": "16-VR P1", "value": "31 degrees C", "event": "ok"}, {"name": "17-VR P2", "value": "30 degrees C", "event": "ok"}, {"name": "18-VR P1 Mem 1", "value": "25 degrees C", "event": "ok"}, {"name": "19-VR P1 Mem 2", "value": "25 degrees C", "event": "ok"}, {"name": "20-VR P2 Mem 1", "value": "25 degrees C", "event": "ok"}, {"name": "21-VR P2 Mem 2", "value": "25 degrees C", "event": "ok"}, {"name": "22-Chipset", "value": "30 degrees C", "event": "ok"}, {"name": "23-BMC", "value": "66 degrees C", "event": "ok"}, {"name": "24-BMC Zone", "value": "35 degrees C", "event": "ok"}, {"name": "26-HD Cntlr Zone", "value": "27 degrees C", "event": "ok"}, {"name": "29-I/O Zone", "value": "26 degrees C", "event": "ok"}, {"name": "30-PCI 1", "value": "disabled", "event": "ns"}, {"name": "31-PCI 1 Zone", "value": "28 degrees C", "event": "ok"}, {"name": "32-PCI 2", "value": "disabled", "event": "ns"}, {"name": "33-PCI 2 Zone", "value": "28 degrees C", "event": "ok"}, {"name": "34-PCI 3", "value": "disabled", "event": "ns"}, {"name": "35-PCI 3 Zone", "value": "disabled", "event": "ns"}, {"name": "37-Rear HD Max", "value": "disabled", "event": "ns"}, {"name": "38-Battery Zone", "value": "29 degrees C", "event": "ok"}, {"name": "39-P/S 1 Inlet", "value": "28 degrees C", "event": "ok"}, {"name": "40-P/S 2 Inlet", "value": "29 degrees C", "event": "ok"}, {"name": "41-P/S 1", "value": "40 degrees C", "event": "ok"}, {"name": "42-P/S 2", "value": "40 degrees C", "event": "ok"}, {"name": "43-E-Fuse", "value": "22 degrees C", "event": "ok"}, {"name": "44-P/S 2 Zone", "value": "27 degrees C", "event": "ok"}, {"name": "49-CPU 1 PkgTmp", "value": "35 degrees C", "event": "ok"}, {"name": "50-CPU 2 PkgTmp", "value": "35 degrees C", "event": "ok"}, {"name": "61-AHCI HD Max", "value": "disabled", "event": "ns"}, {"name": "69-PCI 1 M2", "value": "disabled", "event": "ns"}, {"name": "70-PCI 1 M2 Zn", "value": "disabled", "event": "ns"}, {"name": "71-PCI 2 M2", "value": "disabled", "event": "ns"}, {"name": "72-PCI 2 M2 Zn", "value": "disabled", "event": "ns"}, {"name": "73-PCI 3 M2", "value": "disabled", "event": "ns"}, {"name": "74-PCI 3 M2 Zn", "value": "disabled", "event": "ns"}, {"name": "Fan 1", "value": "0x00", "event": "ok"}, {"name": "Fan 1 DutyCycle", "value": "23.52 percent", "event": "ok"}, {"name": "Fan 1 Presence", "value": "0x00", "event": "ok"}, {"name": "Fan 2", "value": "0x00", "event": "ok"}, {"name": "Fan 2 DutyCycle", "value": "23.52 percent", "event": "ok"}, {"name": "Fan 2 Presence", "value": "0x00", "event": "ok"}, {"name": "Fan 3", "value": "0x00", "event": "ok"}, {"name": "Fan 3 DutyCycle", "value": "23.52 percent", "event": "ok"}, {"name": "Fan 3 Presence", "value": "0x00", "event": "ok"}, {"name": "Fan 4", "value": "0x00", "event": "ok"}, {"name": "Fan 4 DutyCycle", "value": "23.52 percent", "event": "ok"}, {"name": "Fan 4 Presence", "value": "0x00", "event": "ok"}, {"name": "Fan 5", "value": "0x00", "event": "ok"}, {"name": "Fan 5 DutyCycle", "value": "23.52 percent", "event": "ok"}, {"name": "Fan 5 Presence", "value": "0x00", "event": "ok"}, {"name": "Fan 6", "value": "0x00", "event": "ok"}, {"name": "Fan 6 DutyCycle", "value": "23.52 percent", "event": "ok"}, {"name": "Fan 6 Presence", "value": "0x00", "event": "ok"}, {"name": "Fan 7", "value": "0x00", "event": "ok"}, {"name": "Fan 7 DutyCycle", "value": "23.52 percent", "event": "ok"}, {"name": "Fan 7 Presence", "value": "0x00", "event": "ok"}, {"name": "Power Supply 1", "value": "0x00", "event": "ok"}, {"name": "PS 1 Input", "value": "90 Watts", "event": "ok"}, {"name": "Power Supply 2", "value": "0x00", "event": "ok"}, {"name": "PS 2 Input", "value": "90 Watts", "event": "ok"}, {"name": "Power Meter", "value": "200 Watts", "event": "ok"}, {"name": "Fans", "value": "0x00", "event": "ok"}, {"name": "Power Supplies", "value": "0x00", "event": "ok"}, {"name": "Memory Status", "value": "0x00", "event": "ok"}, {"name": "Megacell Status", "value": "0x00", "event": "ok"}, {"name": "Intrusion", "value": "Not Readable", "event": "ns"}, {"name": "CPU Utilization", "value": "0 unspecified", "event": "ok"}, {"name": "PS 1 Output", "value": "80 Watts", "event": "ok"}, {"name": "PS_Volt_Out_01", "value": "12 Volts", "event": "ok"}, {"name": "PS_Volt_In_01", "value": "123 Volts", "event": "ok"}, {"name": "PS_Curr_Out_01", "value": "7.20 Amps", "event": "ok"}, {"name": "PS_Curr_In_01", "value": "0.90 Amps", "event": "ok"}, {"name": "PS 2 Output", "value": "80 Watts", "event": "ok"}, {"name": "PS_Volt_Out_02", "value": "12 Volts", "event": "ok"}, {"name": "PS_Volt_In_02", "value": "123 Volts", "event": "ok"}, {"name": "PS_Curr_Out_02", "value": "6.90 Amps", "event": "ok"}, {"name": "PS_Curr_In_02", "value": "0.90 Amps", "event": "ok"}, {"name": "27.1-LOM-Communi", "value": "49 degrees C", "event": "ok"}, {"name": "28.1-LOM Card-I/", "value": "60 degrees C", "event": "ok"}, {"name": "25.1-HD Controll", "value": "26 degrees C", "event": "ok"}, {"name": "25.2-HD Controll", "value": "32 degrees C", "event": "ok"}, {"name": "25.3-HD Controll", "value": "27 degrees C", "event": "ok"}, {"name": "LOM_Link_P1", "value": "Not Readable", "event": "ns"}, {"name": "LOM_Link_P2", "value": "Not Readable", "event": "ns"}, {"name": "LOM_Link_P3", "value": "Not Readable", "event": "ns"}, {"name": "LOM_Link_P4", "value": "Not Readable", "event": "ns"}, {"name": "ALOM_Link_P1", "value": "Not Readable", "event": "ns"}, {"name": "ALOM_Link_P2", "value": "Not Readable", "event": "ns"}, {"name": "Dr_Stat_1I1_B001", "value": "0x00", "event": "ok"}, {"name": "Dr_Stat_1I1_B002", "value": "0x00", "event": "ok"}, {"name": "Dr_Stat_1I1_B003", "value": "0x00", "event": "ok"}, {"name": "Dr_Stat_1I1_B004", "value": "0x00", "event": "ok"}, {"name": "Dr_Stat_2I1_B005", "value": "0x00", "event": "ok"}, {"name": "Dr_Stat_2I1_B006", "value": "0x00", "event": "ok"}, {"name": "Dr_Stat_2I1_B007", "value": "0x00", "event": "ok"}, {"name": "Dr_Stat_2I1_B008", "value": "0x00", "event": "ok"}, {"name": "CPU_Stat_C1", "value": "0x00", "event": "ok"}, {"name": "CPU_Stat_C2", "value": "0x00", "event": "ok"}]

@olivierlambert I vote for HPE also! Thanks!

@MajorP93 I'm running with Node v24.11.0 now (on Debian 11 and 12). There have been some issues with older versions of 24, but to seems fine at this time.