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    XCP-ng 8.3 updates announcements and testing

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    • dthenotD Offline
      dthenot Vates 🪐 XCP-ng Team @rzr
      last edited by

      @rzr Host updated 🙂

      1 Reply Last reply Reply Quote 1
      • A Online
        Andrew Top contributor @rzr
        last edited by

        @rzr Installed on test machines with some warnings:

          Updating   : blktap-3.55.5-6.4.xcpng8.3.x86_64                           9/87
cat: /usr/lib/udev/rules.d/65-md-incremental.rules: No such file or directory
warning: %triggerin(blktap-3.55.5-6.4.xcpng8.3.x86_64) scriptlet failed, exit status 1
Non-fatal <unknown> scriptlet failure in rpm package blktap-3.55.5-6.4.xcpng8.3. x86_64

  Updating   : sm-fairlock-3.2.12-17.2.xcpng8.3.x86_64                    32/87
Warning: fairlock@devicemapper.service changed on disk. Run 'systemctl daemon-reload' to reload units.
        F rzrR 2 Replies Last reply Reply Quote 0
        • F Offline
          flakpyro @Andrew
          last edited by

          Installed on a handful of test machines. Not as many as usual as im being very cautious with this one for now. Everything rebooted and VMs started ok after. Using VHD for everything currently.

          1 Reply Last reply Reply Quote 2
          • rzrR Offline
            rzr Vates 🪐 XCP-ng Team @Andrew
            last edited by rzr

            @Andrew said:

            @rzr Installed on test machines with some warnings:

              Updating   : blktap-3.55.5-6.4.xcpng8.3.x86_64                           9/87
cat: /usr/lib/udev/rules.d/65-md-incremental.rules: No such file or directory
warning: %triggerin(blktap-3.55.5-6.4.xcpng8.3.x86_64) scriptlet failed, exit status 1
Non-fatal <unknown> scriptlet failure in rpm package blktap-3.55.5-6.4.xcpng8.3. x86_64

            Yes this was reported as "Known issues"

            On blktap update a non blocking error is reported,the fix is ongoing and will be delivered soon

              Updating   : sm-fairlock-3.2.12-17.2.xcpng8.3.x86_64                    32/87
Warning: fairlock@devicemapper.service changed on disk. Run 'systemctl daemon-reload' to reload units.

            I observed this too, maybe this should be documented too, a reboot will work too.

            A 1 Reply Last reply Reply Quote 0
            • rzrR rzr referenced this topic
            • A Online
              Andrew Top contributor @rzr
              last edited by

              @rzr Always a reboot after big updates, as instructed/required.

              1 Reply Last reply Reply Quote 2
              • B Offline
                bufanda
                last edited by

                Upgraded my usual pool. VM migrations during reboot worked without issues. So far everything works

                1 Reply Last reply Reply Quote 3
                • J Offline
                  JeffBerntsen Top contributor
                  last edited by

                  Now installed on my test systems and all seems to be working so far.

                  1 Reply Last reply Reply Quote 2
                  • P Offline
                    ph7
                    last edited by

                    Tested but not much
                    Seems fine so far

                    1 Reply Last reply Reply Quote 1
                    • A Online
                      Andrew Top contributor @rzr
                      last edited by Andrew

                      @rzr (edit) After upgrading two main pools, I'm having CR delta backup issues. Everything was working before the XCP update, now every VM has the same error of Backup fell back to a full. Using XO master db9c4, but the same XO setup was working just fine before the XCP update.

                      (edit 2) XO logs

                      Apr 15 22:55:40 xo1 xo-server[1409]: 2026-04-16T02:55:40.613Z xo:backups:worker INFO starting backup
Apr 15 22:55:42 xo1 xo-server[1409]: 2026-04-16T02:55:42.006Z xo:xapi:xapi-disks INFO export through vhd
Apr 15 22:55:44 xo1 xo-server[1409]: 2026-04-16T02:55:44.093Z xo:xapi:vdi INFO  OpaqueRef:07ac67ab-05cf-a066-5924-f28e15642d4e was already destroyed {
Apr 15 22:55:44 xo1 xo-server[1409]:   vdiRef: 'OpaqueRef:49ff18d3-5c18-176c-4930-0163c6727c2b',
Apr 15 22:55:44 xo1 xo-server[1409]:   vbdRef: 'OpaqueRef:07ac67ab-05cf-a066-5924-f28e15642d4e'
Apr 15 22:55:44 xo1 xo-server[1409]: }
Apr 15 22:55:44 xo1 xo-server[1409]: 2026-04-16T02:55:44.839Z xo:xapi:vdi INFO  OpaqueRef:e5fa3d00-f629-6983-6ff2-841e9edacf82 has been disconnected from dom0 {
Apr 15 22:55:44 xo1 xo-server[1409]:   vdiRef: 'OpaqueRef:02f9ba92-1ee2-88eb-f660-a2cf3eeb287d',
Apr 15 22:55:44 xo1 xo-server[1409]:   vbdRef: 'OpaqueRef:e5fa3d00-f629-6983-6ff2-841e9edacf82'
Apr 15 22:55:44 xo1 xo-server[1409]: }
Apr 15 22:55:44 xo1 xo-server[1409]: 2026-04-16T02:55:44.910Z xo:xapi:vm WARN _assertHealthyVdiChain, could not fetch VDI {
Apr 15 22:55:44 xo1 xo-server[1409]:   error: XapiError: UUID_INVALID(VDI, 8f233bfc-9deb-4a06-aa07-0510de7496a1)
Apr 15 22:55:44 xo1 xo-server[1409]:       at XapiError.wrap (file:///opt/xo/xo-builds/xen-orchestra-202604151415/packages/xen-api/_XapiError.mjs:16:12)
Apr 15 22:55:44 xo1 xo-server[1409]:       at file:///opt/xo/xo-builds/xen-orchestra-202604151415/packages/xen-api/transports/json-rpc.mjs:38:21
Apr 15 22:55:44 xo1 xo-server[1409]:       at process.processTicksAndRejections (node:internal/process/task_queues:104:5) {
Apr 15 22:55:44 xo1 xo-server[1409]:     code: 'UUID_INVALID',
Apr 15 22:55:44 xo1 xo-server[1409]:     params: [ 'VDI', '8f233bfc-9deb-4a06-aa07-0510de7496a1' ],
Apr 15 22:55:44 xo1 xo-server[1409]:     call: { duration: 3, method: 'VDI.get_by_uuid', params: [Array] },
Apr 15 22:55:44 xo1 xo-server[1409]:     url: undefined,
Apr 15 22:55:44 xo1 xo-server[1409]:     task: undefined
Apr 15 22:55:44 xo1 xo-server[1409]:   }
Apr 15 22:55:44 xo1 xo-server[1409]: }
Apr 15 22:55:46 xo1 xo-server[1409]: 2026-04-16T02:55:46.732Z xo:xapi:xapi-disks INFO Error in openNbdCBT XapiError: SR_BACKEND_FAILURE_460(, Failed to calculate changed blocks for given VDIs. [opterr=Source and target VDI are unrelated], )
Apr 15 22:55:46 xo1 xo-server[1409]:     at XapiError.wrap (file:///opt/xo/xo-builds/xen-orchestra-202604151415/packages/xen-api/_XapiError.mjs:16:12)
Apr 15 22:55:46 xo1 xo-server[1409]:     at default (file:///opt/xo/xo-builds/xen-orchestra-202604151415/packages/xen-api/_getTaskResult.mjs:13:29)
Apr 15 22:55:46 xo1 xo-server[1409]:     at Xapi._addRecordToCache (file:///opt/xo/xo-builds/xen-orchestra-202604151415/packages/xen-api/index.mjs:1078:24)
Apr 15 22:55:46 xo1 xo-server[1409]:     at file:///opt/xo/xo-builds/xen-orchestra-202604151415/packages/xen-api/index.mjs:1112:14
Apr 15 22:55:46 xo1 xo-server[1409]:     at Array.forEach (<anonymous>)
Apr 15 22:55:46 xo1 xo-server[1409]:     at Xapi._processEvents (file:///opt/xo/xo-builds/xen-orchestra-202604151415/packages/xen-api/index.mjs:1102:12)
Apr 15 22:55:46 xo1 xo-server[1409]:     at Xapi._watchEvents (file:///opt/xo/xo-builds/xen-orchestra-202604151415/packages/xen-api/index.mjs:1275:14)
Apr 15 22:55:46 xo1 xo-server[1409]:     at process.processTicksAndRejections (node:internal/process/task_queues:104:5) {
Apr 15 22:55:46 xo1 xo-server[1409]:   code: 'SR_BACKEND_FAILURE_460',
Apr 15 22:55:46 xo1 xo-server[1409]:   params: [
Apr 15 22:55:46 xo1 xo-server[1409]:     '',
Apr 15 22:55:46 xo1 xo-server[1409]:     'Failed to calculate changed blocks for given VDIs. [opterr=Source and target VDI are unrelated]',
Apr 15 22:55:46 xo1 xo-server[1409]:     ''
Apr 15 22:55:46 xo1 xo-server[1409]:   ],
Apr 15 22:55:46 xo1 xo-server[1409]:   call: undefined,
Apr 15 22:55:46 xo1 xo-server[1409]:   url: undefined,
Apr 15 22:55:46 xo1 xo-server[1409]:   task: task {
Apr 15 22:55:46 xo1 xo-server[1409]:     uuid: '8fae41b4-de82-789c-980a-5ff2d490d2d8',
Apr 15 22:55:46 xo1 xo-server[1409]:     name_label: 'Async.VDI.list_changed_blocks',
Apr 15 22:55:46 xo1 xo-server[1409]:     name_description: '',
Apr 15 22:55:46 xo1 xo-server[1409]:     allowed_operations: [],
Apr 15 22:55:46 xo1 xo-server[1409]:     current_operations: {},
Apr 15 22:55:46 xo1 xo-server[1409]:     created: '20260416T02:55:46Z',
Apr 15 22:55:46 xo1 xo-server[1409]:     finished: '20260416T02:55:46Z',
Apr 15 22:55:46 xo1 xo-server[1409]:     status: 'failure',
Apr 15 22:55:46 xo1 xo-server[1409]:     resident_on: 'OpaqueRef:7b987b11-ada0-99ce-d831-6e589bf34b50',
Apr 15 22:55:46 xo1 xo-server[1409]:     progress: 1,
Apr 15 22:55:46 xo1 xo-server[1409]:     type: '<none/>',
Apr 15 22:55:46 xo1 xo-server[1409]:     result: '',
Apr 15 22:55:46 xo1 xo-server[1409]:     error_info: [
Apr 15 22:55:46 xo1 xo-server[1409]:       'SR_BACKEND_FAILURE_460',
Apr 15 22:55:46 xo1 xo-server[1409]:       '',
Apr 15 22:55:46 xo1 xo-server[1409]:       'Failed to calculate changed blocks for given VDIs. [opterr=Source and target VDI are unrelated]',
Apr 15 22:55:46 xo1 xo-server[1409]:       ''
Apr 15 22:55:46 xo1 xo-server[1409]:     ],
Apr 15 22:55:46 xo1 xo-server[1409]:     other_config: {},
Apr 15 22:55:46 xo1 xo-server[1409]:     subtask_of: 'OpaqueRef:NULL',
Apr 15 22:55:46 xo1 xo-server[1409]:     subtasks: [],
Apr 15 22:55:46 xo1 xo-server[1409]:     backtrace: '(((process xapi)(filename lib/backtrace.ml)(line 210))((process xapi)(filename ocaml/xapi/storage_utils.ml)(line 150))((process xapi)(filename ocaml/xapi/message_forwarding.ml)(line 141))((process xapi)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 24))((process xapi)(filename ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml)(line 39))((process xapi)(filename ocaml/xapi/rbac.ml)(line 228))((process xapi)(filename ocaml/xapi/rbac.ml)(line 238))((process xapi)(filename ocaml/xapi/server_helpers.ml)(line 78)))'
Apr 15 22:55:46 xo1 xo-server[1409]:   }
Apr 15 22:55:46 xo1 xo-server[1409]: }
Apr 15 22:55:46 xo1 xo-server[1409]: 2026-04-16T02:55:46.735Z xo:xapi:xapi-disks INFO export through vhd
Apr 15 22:55:48 xo1 xo-server[1409]: 2026-04-16T02:55:48.115Z xo:xapi:vdi WARN invalid HTTP header in response body {
Apr 15 22:55:48 xo1 xo-server[1409]:   body: 'HTTP/1.1 500 Internal Error\r\n' +
Apr 15 22:55:48 xo1 xo-server[1409]:     'content-length: 318\r\n' +
Apr 15 22:55:48 xo1 xo-server[1409]:     'content-type: text/html\r\n' +
Apr 15 22:55:48 xo1 xo-server[1409]:     'connection: close\r\n' +
Apr 15 22:55:48 xo1 xo-server[1409]:     'cache-control: no-cache, no-store\r\n' +
Apr 15 22:55:48 xo1 xo-server[1409]:     '\r\n' +
Apr 15 22:55:48 xo1 xo-server[1409]:     '<html><body><h1>HTTP 500 internal server error</h1>An unexpected error occurred; please wait a while and try again. If the problem persists, please contact your support representative.<h1> Additional information </h1>VDI_INCOMPATIBLE_TYPE: [ OpaqueRef:3b37047e-11dd-f836-ebed-acfaff2072ac; CBT metadata ]</body></html>'
Apr 15 22:55:48 xo1 xo-server[1409]: }
Apr 15 22:55:48 xo1 xo-server[1409]: 2026-04-16T02:55:48.124Z xo:xapi:xapi-disks WARN can't compute delta OpaqueRef:e7de1446-34fd-1ae8-4680-351b1e72b2dd from OpaqueRef:3b37047e-11dd-f836-ebed-acfaff2072ac, fallBack to a full {
Apr 15 22:55:48 xo1 xo-server[1409]:   error: Error: invalid HTTP header in response body
Apr 15 22:55:48 xo1 xo-server[1409]:       at checkVdiExport (file:///opt/xo/xo-builds/xen-orchestra-202604151415/@xen-orchestra/xapi/vdi.mjs:37:19)
Apr 15 22:55:48 xo1 xo-server[1409]:       at process.processTicksAndRejections (node:internal/process/task_queues:104:5)
Apr 15 22:55:48 xo1 xo-server[1409]:       at async Xapi.exportContent (file:///opt/xo/xo-builds/xen-orchestra-202604151415/@xen-orchestra/xapi/vdi.mjs:261:5)
Apr 15 22:55:48 xo1 xo-server[1409]:       at async #getExportStream (file:///opt/xo/xo-builds/xen-orchestra-202604151415/@xen-orchestra/xapi/disks/XapiVhdStreamSource.mjs:123:20)
Apr 15 22:55:48 xo1 xo-server[1409]:       at async XapiVhdStreamSource.init (file:///opt/xo/xo-builds/xen-orchestra-202604151415/@xen-orchestra/xapi/disks/XapiVhdStreamSource.mjs:135:23)
Apr 15 22:55:48 xo1 xo-server[1409]:       at async #openExportStream (file:///opt/xo/xo-builds/xen-orchestra-202604151415/@xen-orchestra/xapi/disks/Xapi.mjs:182:7)
Apr 15 22:55:48 xo1 xo-server[1409]:       at async #openNbdStream (file:///opt/xo/xo-builds/xen-orchestra-202604151415/@xen-orchestra/xapi/disks/Xapi.mjs:97:22)
Apr 15 22:55:48 xo1 xo-server[1409]:       at async XapiDiskSource.openSource (file:///opt/xo/xo-builds/xen-orchestra-202604151415/@xen-orchestra/xapi/disks/Xapi.mjs:258:18)
Apr 15 22:55:48 xo1 xo-server[1409]:       at async XapiDiskSource.init (file:///opt/xo/xo-builds/xen-orchestra-202604151415/@xen-orchestra/disk-transform/dist/DiskPassthrough.mjs:28:41)
Apr 15 22:55:48 xo1 xo-server[1409]:       at async file:///opt/xo/xo-builds/xen-orchestra-202604151415/@xen-orchestra/backups/_incrementalVm.mjs:66:5
Apr 15 22:55:48 xo1 xo-server[1409]: }
Apr 15 22:55:48 xo1 xo-server[1409]: 2026-04-16T02:55:48.126Z xo:xapi:xapi-disks INFO export through vhd
Apr 15 22:56:24 xo1 xo-server[1409]: 2026-04-16T02:56:24.047Z xo:backups:worker INFO backup has ended
Apr 15 22:56:24 xo1 xo-server[1409]: 2026-04-16T02:56:24.231Z xo:backups:worker INFO process will exit {
Apr 15 22:56:24 xo1 xo-server[1409]:   duration: 43618102,
Apr 15 22:56:24 xo1 xo-server[1409]:   exitCode: 0,
Apr 15 22:56:24 xo1 xo-server[1409]:   resourceUsage: {
Apr 15 22:56:24 xo1 xo-server[1409]:     userCPUTime: 45307253,
Apr 15 22:56:24 xo1 xo-server[1409]:     systemCPUTime: 6674413,
Apr 15 22:56:24 xo1 xo-server[1409]:     maxRSS: 30928,
Apr 15 22:56:24 xo1 xo-server[1409]:     sharedMemorySize: 0,
Apr 15 22:56:24 xo1 xo-server[1409]:     unsharedDataSize: 0,
Apr 15 22:56:24 xo1 xo-server[1409]:     unsharedStackSize: 0,
Apr 15 22:56:24 xo1 xo-server[1409]:     minorPageFault: 287968,
Apr 15 22:56:24 xo1 xo-server[1409]:     majorPageFault: 0,
Apr 15 22:56:24 xo1 xo-server[1409]:     swappedOut: 0,
Apr 15 22:56:24 xo1 xo-server[1409]:     fsRead: 0,
Apr 15 22:56:24 xo1 xo-server[1409]:     fsWrite: 0,
Apr 15 22:56:24 xo1 xo-server[1409]:     ipcSent: 0,
Apr 15 22:56:24 xo1 xo-server[1409]:     ipcReceived: 0,
Apr 15 22:56:24 xo1 xo-server[1409]:     signalsCount: 0,
Apr 15 22:56:24 xo1 xo-server[1409]:     voluntaryContextSwitches: 14665,
Apr 15 22:56:24 xo1 xo-server[1409]:     involuntaryContextSwitches: 962
Apr 15 22:56:24 xo1 xo-server[1409]:   },
Apr 15 22:56:24 xo1 xo-server[1409]:   summary: { duration: '44s', cpuUsage: '119%', memoryUsage: '30.2 MiB' }
Apr 15 22:56:24 xo1 xo-server[1409]: }
                      stormiS 1 Reply Last reply Reply Quote 1
                      • stormiS Offline
                        stormi Vates 🪐 XCP-ng Team @Andrew
                        last edited by

                        Thanks @Andrew. They'll have a close look.

                        1 Reply Last reply Reply Quote 0

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