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    🛰️ XO 6: dedicated thread for all your feedback!

    Scheduled Pinned Locked Moved Xen Orchestra
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    • M Online
      MajorP93 @Greg_E
      last edited by

      I noticed the same: for VMs that use UEFI the boot time is greatly increased compared to BIOS mode.

      I noticed that VMs that have UEFI enabled show some "installing xen timer" and "spinlock" events in kernel log:

      Apr 27 11:35:06 xo01 kernel: Xen: using vcpuop timer interface
Apr 27 11:35:06 xo01 kernel: installing Xen timer for CPU 0
Apr 27 11:35:06 xo01 kernel: smpboot: CPU0: AMD EPYC 7702P 64-Core Processor (family: 0x17, model: 0x31, stepping: 0x0)
Apr 27 11:35:06 xo01 kernel: cpu 0 spinlock event irq 52
Apr 27 11:35:06 xo01 kernel: Performance Events: PMU not available due to virtualization, using software events only.
Apr 27 11:35:06 xo01 kernel: signal: max sigframe size: 1776
Apr 27 11:35:06 xo01 kernel: rcu: Hierarchical SRCU implementation.
Apr 27 11:35:06 xo01 kernel: rcu:         Max phase no-delay instances is 1000.
Apr 27 11:35:06 xo01 kernel: Timer migration: 1 hierarchy levels; 8 children per group; 1 crossnode level
Apr 27 11:35:06 xo01 kernel: NMI watchdog: Perf NMI watchdog permanently disabled
Apr 27 11:35:06 xo01 kernel: smp: Bringing up secondary CPUs ...
Apr 27 11:35:06 xo01 kernel: installing Xen timer for CPU 1
Apr 27 11:35:06 xo01 kernel: smpboot: x86: Booting SMP configuration:
Apr 27 11:35:06 xo01 kernel: .... node  #0, CPUs:      #1
Apr 27 11:35:06 xo01 kernel: installing Xen timer for CPU 2
Apr 27 11:35:06 xo01 kernel:  #2
Apr 27 11:35:06 xo01 kernel: installing Xen timer for CPU 3
Apr 27 11:35:06 xo01 kernel:  #3
Apr 27 11:35:06 xo01 kernel: installing Xen timer for CPU 4
Apr 27 11:35:06 xo01 kernel:  #4
Apr 27 11:35:06 xo01 kernel: installing Xen timer for CPU 5
Apr 27 11:35:06 xo01 kernel:  #5
Apr 27 11:35:06 xo01 kernel: installing Xen timer for CPU 6
Apr 27 11:35:06 xo01 kernel:  #6
Apr 27 11:35:06 xo01 kernel: installing Xen timer for CPU 7
Apr 27 11:35:06 xo01 kernel:  #7
Apr 27 11:35:06 xo01 kernel: cpu 1 spinlock event irq 81
Apr 27 11:35:06 xo01 kernel: cpu 2 spinlock event irq 82
Apr 27 11:35:06 xo01 kernel: cpu 3 spinlock event irq 83
Apr 27 11:35:06 xo01 kernel: cpu 4 spinlock event irq 84
Apr 27 11:35:06 xo01 kernel: cpu 5 spinlock event irq 85
Apr 27 11:35:06 xo01 kernel: cpu 6 spinlock event irq 86
Apr 27 11:35:06 xo01 kernel: cpu 7 spinlock event irq 87

      Those events seem to be what is slowing down boot.
      Ever since I started using XCP-ng I was able to observe this behavior.
      Once the VM is fully booted performance seems to be normal.
      Maybe worth investigating at some point.

      Best regards

      G 1 Reply Last reply Reply Quote 0
      • G Online
        Greg_E @MajorP93
        last edited by

        @MajorP93

        Before the LTS release UEFI worked extremely well, something kind of went sideways when it hit release. I only have a single UEFI VM, it was created under version 8.2 and does not give me trouble.

        I guess I need to get my lab back up, had a UPS fail and shut everything off a few days ago. Then I need to test UEFI VMs and see what I can see. But back when it went LTS I reinstalled from scratch and tried to do everything through XO-lite to get the first VM running and found that Debian 13 or Windows Server 2022 would not boot if I created them with UEFI. Since then I haven't tested this again.

        I'm also tempted to just move my whole lab to version 9, waiting for the next ISO to land and I may do this. I can run real testing workloads on Harvester for the time being and maybe play around migrating back and forth between both systems.

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        • P Online
          probain @probain
          last edited by

          probain said:

          Unfortunately, commit https://github.com/vatesfr/xen-orchestra/pull/9727 doesn't fix this issue of the VM-console reloading constantly. With loss of focus as a result. At least not on XO6..

          pierre-briffaux opened this pull request in vatesfr/xen-orchestra

          closed fix(vm/console): fix VNC reconnection causing focus loss #9727

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          • B Online
            Baronvaile
            last edited by

            After upgrading from 6.3.3 to the new 6.4.0 release, the dashboard page for xoa 6 is just spinning. v5 seem unaffected after the update. I have restarted the xoa vm. The xoa-updated show all up to date and xoa check shows healthy.
            040b86f5-9129-4f4c-9af9-7af3184936b7-image.jpeg

            P 1 Reply Last reply Reply Quote 0
            • P Offline
              ph7 @Baronvaile
              last edited by

              @Baronvaile
              Have You tested wit CTRL-F5 to update Your browser

              B 1 Reply Last reply Reply Quote 0
              • B Online
                Baronvaile @ph7
                last edited by

                @ph7 I have. Also same condition in Chrome and Edge.

                acebmxerA P 2 Replies Last reply Reply Quote 0
                • acebmxerA Online
                  acebmxer @Baronvaile
                  last edited by acebmxer

                  @Baronvaile

                  Just to confirm this is with actual XOA and not XO from sources? Have you rebooted XO? Check logs? sudo journalctl -u xo-server -n 50

                  Edit - Just updated my home lab XOA

                  Screenshot 2026-04-30 103224.png

                  Screenshot 2026-04-30 103426.png

                  I see same thing... XO from sources no issues. Work XOA no issues...
                  Screenshot 2026-04-30 103451.png

                  B 1 Reply Last reply Reply Quote 0
                  • P Offline
                    ph7 @Baronvaile
                    last edited by

                    @Baronvaile
                    Started my 6.4.0 test VM and got the same
                    Screenshot 2026-04-30 at 16-27-51 Xen Orchestra.png

                    P 1 Reply Last reply Reply Quote 0
                    • P Offline
                      ph7 @ph7
                      last edited by

                      My is XOA

                      acebmxerA 1 Reply Last reply Reply Quote 0
                      • acebmxerA Online
                        acebmxer @ph7
                        last edited by acebmxer

                        I am seeing these errors....

                        [09:45 30] xoa@xoa:~$ sudo journalctl -u xo-server -p warning --no-pager
Mar 13 13:13:52 xoa systemd[1]: xo-server.service: State 'stop-sigterm' timed out. Killing.
Mar 13 13:13:52 xoa systemd[1]: xo-server.service: Main process exited, code=killed, status=9/KILL
Mar 13 13:13:52 xoa systemd[1]: xo-server.service: Failed with result 'timeout'.
-- Boot 8398ef48e4e94d27b11bfc3300a68727 --
Apr 25 11:37:14 xoa systemd[1]: xo-server.service: State 'stop-sigterm' timed out. Killing.
Apr 25 11:37:14 xoa systemd[1]: xo-server.service: Main process exited, code=killed, status=9/KILL
Apr 25 11:37:14 xoa systemd[1]: xo-server.service: Failed with result 'timeout'.
-- Boot 9a9a6f09bdea43729cbe3aa74acc7a3b --
Apr 30 09:36:06 xoa systemd[1]: xo-server.service: State 'stop-sigterm' timed out. Killing.
Apr 30 09:36:06 xoa systemd[1]: xo-server.service: Main process exited, code=killed, status=9/KILL
Apr 30 09:36:06 xoa systemd[1]: xo-server.service: Failed with result 'timeout'.
[09:45 30] xoa@xoa:~$ sudo journalctl -u xo-server -f
Apr 30 09:43:14 xoa xo-server[594]:       at Function.emit (node:events:519:28)
Apr 30 09:43:14 xoa xo-server[594]:       at Function.emit (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/log/configure.js:52:17)
Apr 30 09:43:14 xoa xo-server[594]:       at Server.<anonymous> (file:///usr/local/lib/node_modules/xo-server/src/index.mjs:977:13)
Apr 30 09:43:14 xoa xo-server[594]:       at Server.emit (node:events:531:35)
Apr 30 09:43:14 xoa xo-server[594]:       at Server.patchedEmit [as emit] (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/log/configure.js:52:17)
Apr 30 09:43:14 xoa xo-server[594]:       at onParserExecuteCommon (node:_http_server:977:14)
Apr 30 09:43:14 xoa xo-server[594]:       at onParserExecute (node:_http_server:881:3) {
Apr 30 09:43:14 xoa xo-server[594]:     code: 'DEP0060'
Apr 30 09:43:14 xoa xo-server[594]:   }
Apr 30 09:43:14 xoa xo-server[594]: }
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                        • B Online
                          Baronvaile @acebmxer
                          last edited by Baronvaile

                          @acebmxer Correct, this is with XOA. While watching the journalctl and launching XOA in chrome, I get this output. 43a82668-4f1d-480c-bc0a-ce19ab7043cb-image.jpeg

                          1 Reply Last reply Reply Quote 0
                          • P Offline
                            ph7
                            last edited by 

                            [17:00 30] xoa@xoa:~$ sudo journalctl -u xo-server -f
Apr 30 16:23:13 xoa xo-server[569]: 2026-04-30T14:23:13.264Z xo:main INFO Setting up / → /usr/local/lib/node_modules/@xen-orchestra/web/dist
Apr 30 16:26:27 xoa xo-server[569]: 2026-04-30T14:26:27.942Z xo:rest-api:error-handler INFO [GET] /users/370331c9-fe77-49db-b2a0-e38f776607bd (403)
Apr 30 16:26:28 xoa xo-server[569]: 2026-04-30T14:26:28.549Z xo:rest-api:error-handler INFO [GET] /pools (403)
Apr 30 16:26:28 xoa xo-server[569]: 2026-04-30T14:26:28.555Z xo:rest-api:error-handler INFO [GET] /hosts (403)
Apr 30 16:26:28 xoa xo-server[569]: 2026-04-30T14:26:28.563Z xo:rest-api:error-handler INFO [GET] /vms (403)
Apr 30 16:26:28 xoa xo-server[569]: 2026-04-30T14:26:28.627Z xo:rest-api:error-handler INFO [GET] /tasks (403)
Apr 30 16:26:28 xoa xo-server[569]: 2026-04-30T14:26:28.812Z xo:rest-api:error-handler INFO [GET] /alarms (403)
Apr 30 16:26:28 xoa xo-server[569]: 2026-04-30T14:26:28.812Z xo:rest-api:error-handler INFO [GET] /vm-controllers (403)
Apr 30 16:26:28 xoa xo-server[569]: 2026-04-30T14:26:28.813Z xo:rest-api:error-handler INFO [GET] /vdis (403)
Apr 30 16:26:28 xoa xo-server[569]: 2026-04-30T14:26:28.813Z xo:rest-api:error-handler INFO [GET] /srs (403)
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                            • acebmxerA Online
                              acebmxer
                              last edited by

                              I didnt refresh the page when i ran the blow command before.

                              xoa@xoa:~$ sudo journalctl -u xo-server -f
Apr 30 10:28:02 xoa xo-server[568]:     at new Promise (/usr/local/lib/node_modules/xo-server/node_modules/bluebird/js/release/promise.js:103:10)
Apr 30 10:28:02 xoa xo-server[568]:     at Peer.request (/usr/local/lib/node_modules/xo-server-xoa/node_modules/json-rpc-peer/src/index.js:139:12)
Apr 30 10:28:02 xoa xo-server[568]:     at JsonRpcWebSocketClient.call (/usr/local/lib/node_modules/xo-server-xoa/node_modules/jsonrpc-websocket-client/src/index.js:63:23)
Apr 30 10:28:02 xoa xo-server[568]:     at Xoa.apply [as _getCurrentChannel] (/usr/local/lib/node_modules/xo-server-xoa/src/index.js:704:45)
Apr 30 10:28:02 xoa xo-server[568]:     at Xo.<anonymous> (file:///usr/local/lib/node_modules/xo-server/src/xo.mjs:256:24)
Apr 30 10:28:02 xoa xo-server[568]:     at Config.getGuiRoutes (file:///usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/mixins/Config.mjs:102:52)
Apr 30 10:28:02 xoa xo-server[568]:     at main (file:///usr/local/lib/node_modules/xo-server/src/index.mjs:1037:56)
Apr 30 10:28:02 xoa xo-server[568]: 2026-04-30T15:28:02.981Z xo:main INFO Setting up /v5 → /usr/local/lib/node_modules/xo-web/dist
Apr 30 10:28:02 xoa xo-server[568]: 2026-04-30T15:28:02.981Z xo:main INFO Setting up /v6 → /usr/local/lib/node_modules/@xen-orchestra/web/dist
Apr 30 10:28:02 xoa xo-server[568]: 2026-04-30T15:28:02.981Z xo:main INFO Setting up / → /usr/local/lib/node_modules/@xen-orchestra/web/dist
Apr 30 10:29:00 xoa xo-server[568]: 2026-04-30T15:29:00.487Z xo:rest-api:error-handler INFO [GET] /users/f1397281-6d64-442b-a78c-e53fea09aa76 (403)
Apr 30 10:29:01 xoa xo-server[568]: 2026-04-30T15:29:01.014Z xo:rest-api:error-handler INFO [GET] /pools (403)
Apr 30 10:29:01 xoa xo-server[568]: 2026-04-30T15:29:01.020Z xo:rest-api:error-handler INFO [GET] /hosts (403)
Apr 30 10:29:01 xoa xo-server[568]: 2026-04-30T15:29:01.027Z xo:rest-api:error-handler INFO [GET] /vms (403)
Apr 30 10:29:01 xoa xo-server[568]: 2026-04-30T15:29:01.044Z xo:rest-api:error-handler INFO [GET] /tasks (403)
Apr 30 10:29:01 xoa xo-server[568]: 2026-04-30T15:29:01.077Z xo:rest-api:error-handler INFO [GET] /alarms (403)
Apr 30 10:29:01 xoa xo-server[568]: 2026-04-30T15:29:01.079Z xo:rest-api:error-handler INFO [GET] /vm-controllers (403)
Apr 30 10:29:01 xoa xo-server[568]: 2026-04-30T15:29:01.082Z xo:rest-api:error-handler INFO [GET] /vdis (403)
Apr 30 10:29:01 xoa xo-server[568]: 2026-04-30T15:29:01.088Z xo:rest-api:error-handler INFO [GET] /srs (403)
Apr 30 10:29:13 xoa xo-server[568]: 2026-04-30T15:29:13.204Z xo:rest-api:error-handler INFO [GET] /users/f1397281-6d64-442b-a78c-e53fea09aa76 (403)
Apr 30 10:29:13 xoa xo-server[568]: 2026-04-30T15:29:13.748Z xo:rest-api:error-handler INFO [GET] /alarms (403)
Apr 30 10:29:13 xoa xo-server[568]: 2026-04-30T15:29:13.751Z xo:rest-api:error-handler INFO [GET] /vm-controllers (403)
Apr 30 10:29:13 xoa xo-server[568]: 2026-04-30T15:29:13.751Z xo:rest-api:error-handler INFO [GET] /srs (403)
Apr 30 10:29:13 xoa xo-server[568]: 2026-04-30T15:29:13.751Z xo:rest-api:error-handler INFO [GET] /vdis (403)
Apr 30 10:29:13 xoa xo-server[568]: 2026-04-30T15:29:13.753Z xo:rest-api:error-handler INFO [GET] /pools (403)
Apr 30 10:29:13 xoa xo-server[568]: 2026-04-30T15:29:13.778Z xo:rest-api:error-handler INFO [GET] /hosts (403)
Apr 30 10:29:13 xoa xo-server[568]: 2026-04-30T15:29:13.778Z xo:rest-api:error-handler INFO [GET] /vms (403)
Apr 30 10:29:13 xoa xo-server[568]: 2026-04-30T15:29:13.784Z xo:rest-api:error-handler INFO [GET] /tasks (403)
                              MathieuRAM 1 Reply Last reply Reply Quote 0
                              • MathieuRAM Online
                                MathieuRA Vates 🪐 XO Team @acebmxer
                                last edited by

                                Hello, I'm investigating the problem.

                                1 Reply Last reply Reply Quote 0
                                • MathieuRAM Online
                                  MathieuRA Vates 🪐 XO Team
                                  last edited by

                                  Can someone open a support tunnel, so that i can test a fix?

                                  PR: https://github.com/vatesfr/xen-orchestra/pull/9798

                                  MathieuRA opened this pull request in vatesfr/xen-orchestra

                                  open fix(rest-api): early return for admin user in acl check #9798

                                  B 1 Reply Last reply Reply Quote 0
                                  • B Online
                                    Baronvaile @MathieuRA
                                    last edited by

                                    @MathieuRA
                                    5d11339a-b442-4f0f-835c-d382b6d4f954-image.jpeg

                                    MathieuRAM B 2 Replies Last reply Reply Quote 0
                                    • MathieuRAM Online
                                      MathieuRA Vates 🪐 XO Team @Baronvaile
                                      last edited by

                                      Thanks @Baronvaile. Can i restart xo-server?

                                      acebmxerA 1 Reply Last reply Reply Quote 0
                                      • B Online
                                        Baronvaile @Baronvaile
                                        last edited by

                                        Sorry, I was out for a bit. Yes, you can restart my xoa.

                                        MathieuRAM 1 Reply Last reply Reply Quote 0
                                        • acebmxerA Online
                                          acebmxer @MathieuRA
                                          last edited by

                                          @MathieuRA

                                          If you still are waiting i have opened a support tunnel - 35965 this is for my home lab. You may reboot XOA if needed.

                                          1 Reply Last reply Reply Quote 0
                                          • MathieuRAM Online
                                            MathieuRA Vates 🪐 XO Team @Baronvaile
                                            last edited by

                                            Thanks @Baronvaile, the fix seems to work.

                                            @acebmxer i will also patch your XOA, It's better to have several confirmations

                                            1 Reply Last reply Reply Quote 0

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