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    Issue after latest host update

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    • J
      john.c
      last edited by

      @RealTehreal What's the state of the network stack is it up and what's the activity percentage?

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      • RealTehrealR
        RealTehreal
        last edited by

        @nikade @john-c I'm not sure... how do I elaborate? At least, I can ssh into the hosts and never disconnect.

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        • RealTehrealR
          RealTehreal @nikade
          last edited by

          @nikade said in Issue after latest host update:

          I cant really understand what happend to be honest, i've done this many times without issues.
          What can you see in the console tab of the VM when u start it? Or in the stats tab?

          I can'T see anything, because XOA itself is inaccessible, since it's a VM. And VMs won't start into a usable state.

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          • J
            john.c @RealTehreal
            last edited by john.c

            @RealTehreal said in Issue after latest host update:

            @nikade said in Issue after latest host update:

            I cant really understand what happend to be honest, i've done this many times without issues.
            What can you see in the console tab of the VM when u start it? Or in the stats tab?

            I can'T see anything, because XOA itself is inaccessible, since it's a VM. And VMs won't start into a usable state.

            Anything in the XCP-ng 8.2.1 host logs for it attempting to start the VM and generally? It may hold clues, about any underlying issues.

            Also any appropriate logs for the NFS storage server would help, as that may reveal anything that can be causing issues on its end.

            RealTehrealR 1 Reply Last reply Reply Quote 0
            • olivierlambertO
              olivierlambert Vates 🪐 Co-Founder CEO
              last edited by

              Any specific MTU settings?

              RealTehrealR 1 Reply Last reply Reply Quote 0
              • olivierlambertO
                olivierlambert Vates 🪐 Co-Founder CEO
                last edited by

                A way to check if it's not network related would be using a local SR to boot a VM and see if it works.

                RealTehrealR 1 Reply Last reply Reply Quote 0
                • RealTehrealR
                  RealTehreal @john.c
                  last edited by

                  @john-c I already took a look at dmesg and /var/log/xensource.log (I crawled through >1k log lines) and couldn't find anything revealing. The NFS server is unrelated, because, as stated before, I currently only use host's local storage to eliminate possible external issues.

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                  • RealTehrealR
                    RealTehreal @olivierlambert
                    last edited by

                    @olivierlambert That's what I'm doing, to make sure, it's not a network related issue.

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                    • RealTehrealR
                      RealTehreal @olivierlambert
                      last edited by

                      @olivierlambert I didn't change anything, at least. Just yum update and it went down the flush.

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                      • olivierlambertO
                        olivierlambert Vates 🪐 Co-Founder CEO
                        last edited by

                        I'm not sure the yum update is really related. It could be a coincidence, otherwise we would have been swamped in similar reports. Or it's a very specific combo that's unseen elsewhere.

                        What kind of hardware are we talking about?

                        RealTehrealR 1 Reply Last reply Reply Quote 0
                        • RealTehrealR
                          RealTehreal @olivierlambert
                          last edited by

                          @olivierlambert I finally made some progress. And it really seems to be update related.

                          I took one of the hosts and plugged a display and keyboard into it. When booting up, I can choose to use an older version of Xen from the boot menu. Doing so makes VMs work again.

                          Culprit: Xen 4.13.5-9.39 (current default)
                          Working: Xen 4.13.4-9.19.1 (which I can choose from boot menu)

                          All three hosts are Fujitsu Futro 740 thin clients.

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                          • J
                            john.c @RealTehreal
                            last edited by john.c

                            @RealTehreal said in Issue after latest host update:

                            @olivierlambert I finally made some progress. And it really seems to be update related.

                            I took one of the hosts and plugged a display and keyboard into it. When booting up, I can choose to use an older version of Xen from the boot menu. Doing so makes VMs work again.

                            Culprit: Xen 4.13.5-9.39 (current default)
                            Working: Xen 4.13.4-9.19.1 (which I can choose from boot menu)

                            All three hosts are Fujitsu Futro 740 thin clients.

                            What's the BIOS version of the Fujitsu Futro 740 and also the more exact model please? There's lots of Fujitsu Futro 740 thin clients, so you could be using any one of them.

                            RealTehrealR 1 Reply Last reply Reply Quote 0
                            • RealTehrealR
                              RealTehreal @john.c
                              last edited by

                              @john-c
                              Model: FUJITSU FUTRO S740/D3544-A1
                              BIOS: V5.0.0.13 R1.13.0 for D3544-A1x (09/23/2022)

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                              • J
                                john.c @RealTehreal
                                last edited by

                                @RealTehreal said in Issue after latest host update:

                                @john-c
                                Model: FUJITSU FUTRO S740/D3544-A1
                                BIOS: V5.0.0.13 R1.13.0 for D3544-A1x (09/23/2022)

                                Thanks that will help. As it enables identification if there's any issues, specific to that device. As well as its specific included CPU and its functions and features, especially its instruction set capabilities.

                                RealTehrealR 1 Reply Last reply Reply Quote 0
                                • RealTehrealR
                                  RealTehreal @john.c
                                  last edited by

                                  @john-c All such information should be available in the dmesg file in post: https://xcp-ng.org/forum/post/74791

                                  Any ideas on how to revert the update? I would really like to have the setup running again. It may be "just" a home lab, but I was still using it (at least semi-) productively...

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                                  • RealTehrealR
                                    RealTehreal
                                    last edited by

                                    I'd be even fine to only use two machines and keep one of them offline for further testing.

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                                    • RealTehrealR
                                      RealTehreal
                                      last edited by

                                      For reference: I now decided to use a less intrusive approach and changed the default boot entry in grub config to the working failover entry. I will now try to get the pool up again.

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                                      • olivierlambertO
                                        olivierlambert Vates 🪐 Co-Founder CEO
                                        last edited by

                                        What's the CPU on this? I would suspect a micro code update issue then.

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                                        • olivierlambertO
                                          olivierlambert Vates 🪐 Co-Founder CEO
                                          last edited by

                                          Could be related: https://xcp-ng.org/forum/topic/8736/wyse-5070-vm-won-t-booting-after-update-bios-1-27

                                          RealTehrealR 1 Reply Last reply Reply Quote 0
                                          • RealTehrealR
                                            RealTehreal @olivierlambert
                                            last edited by

                                            @olivierlambert Following info from /proc/cpuinfo:
                                            Intel(R) Celeron(R) J4105 CPU @ 1.50GHz

                                            True enough, regarding the Wyse topic. I'll try reverting only the microcode update and see, what happens.

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