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    Imported VM Starts but Does Not Initialize the Display

    Scheduled Pinned Locked Moved Solved Xen Orchestra
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    • K Offline
      kagbasi-ngc @stormi
      last edited by

      @stormi Glad you're not spooked.... 👍

      I'll enable the debug mode as you'd instructed and grab the logs for you shortly.

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      • K Offline
        kagbasi-ngc @stormi
        last edited by

        @stormi Hi there, as requested, here are the two logs:

        • daemon.log
        • xensource.log

        I started the VM at timestamp Dec 13 13:54:59 and stopped it at Dec 13 13:55:59.

        Now, is deleting the symbolic link created above all that is necessary to reverse the debug mode?

        stormiS 1 Reply Last reply Reply Quote 0
        • MefosheezM Offline
          Mefosheez @stormi
          last edited by

          @stormi @kagbasi-ngc I have this same error in a separate thread, however, there is no nesting involved. from my limited knowledge, it seems like xcp is not seeing the available memory resources during boot and fails. if I migrate a running VM to the same host that gives me this error, it will operate as expected. but, after reboot... failure to launch.

          https://xcp-ng.org/forum/topic/10083/uefi-guests-not-loading-console?_=1734014269146

          @olivierlambert Thanks for your help so far.

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          • MefosheezM Mefosheez referenced this topic on
          • stormiS Offline
            stormi Vates 🪐 XCP-ng Team @kagbasi-ngc
            last edited by

            @kagbasi-ngc Looks like we missed something, as the log indicates it loaded OVMF-release.fd:

            Dec 13 13:54:59 VMH01 xenguest-2-build[8345]: Loaded OVMF from /usr/share/edk2/OVMF-release.fd
            

            We'll come back to you with a better test procedure.

            For now I just have a quick and dirty one, consisting in overwriting the release file with the debug one:

            cp /usr/share/edk2/OVMF-debug.fd /usr/share/edk2/OVMF-release.fd
            

            You can revert this change with yum reinstall edk2.

            K 1 Reply Last reply Reply Quote 0
            • K Offline
              kagbasi-ngc @stormi
              last edited by

              @stormi Sorry for the delayed reply. I did as you requested, and below are the resulting log files. I started the VM at timestamp Dec 17 14:43:34 and stopped it about 2 minutes later.

              • daemon.log
              • xensource.log

              If I can be of assistance, don't hesitate to ask please. Thank you.

              stormiS 2 Replies Last reply Reply Quote 1
              • stormiS Offline
                stormi Vates 🪐 XCP-ng Team @kagbasi-ngc
                last edited by

                @kagbasi-ngc @Mefosheez We're trying to find developer time to diagnose the cause, but it's not the best time of the year, so I can't promise anything on delays.

                K MefosheezM 3 Replies Last reply Reply Quote 0
                • stormiS Offline
                  stormi Vates 🪐 XCP-ng Team @kagbasi-ngc
                  last edited by

                  @kagbasi-ngc Does your VM have a vTPM? If so, could you try without?

                  K 1 Reply Last reply Reply Quote 0
                  • K Offline
                    kagbasi-ngc @stormi
                    last edited by

                    @stormi No worries at all, I understand.

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                    • K Offline
                      kagbasi-ngc @stormi
                      last edited by

                      @stormi Yes it does. I just deleted the VTPM and tried starting it, but no success. Still the same issue - can't initialize the display.

                      I also disabled Secure Boot, and got the same results.

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                      • MefosheezM Offline
                        Mefosheez @stormi
                        last edited by

                        @stormi thanks for the feedback. no rush here. just let me know if I can help.

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                        • MefosheezM Offline
                          Mefosheez @stormi
                          last edited by

                          @stormi I wanted to follow up. I saw a good number of patches available today, first updates since the issues started for me. I processed them, but this issue still seems persist.

                          I know this thread is about nested virt, and i don't want to derail that. this is where i had posted about the issue prior. I believe they are going to be tided to the same root. any help would be appreciated.

                          https://xcp-ng.org/forum/topic/10083/uefi-guests-not-loading-console?_=1734014269146

                          stormiS 1 Reply Last reply Reply Quote 0
                          • stormiS Offline
                            stormi Vates 🪐 XCP-ng Team @Mefosheez
                            last edited by

                            @Mefosheez I forwarded internally. Feel free to ask again after a week if no answer comes.

                            MefosheezM 1 Reply Last reply Reply Quote 0
                            • MefosheezM Offline
                              Mefosheez @stormi
                              last edited by

                              @stormi I marked it as a question about a week ago now. do you suggest making a new post as a question all together?

                              stormiS 1 Reply Last reply Reply Quote 0
                              • stormiS Offline
                                stormi Vates 🪐 XCP-ng Team @Mefosheez
                                last edited by

                                @Mefosheez Marking a new post as a question will not be necessary. @anthonyper is the one working on what we think is the issue (a regression on the EDK2 package). I haven't heard of a fix yet, but it's in progress.

                                MefosheezM 1 Reply Last reply Reply Quote 1
                                • MefosheezM Offline
                                  Mefosheez @stormi
                                  last edited by

                                  @stormi thank you for the update. and @anthonyper for taking a look.

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                                  • anthonyperA Offline
                                    anthonyper Xen Guru
                                    last edited by

                                    Hi @kagbasi-ngc, I believe I've got a fix for your current issue, do you want to give it a try? @Mefosheez it's probably going to work for you as well.

                                    I've prepared an update, could you install it?

                                    # Download repo file for XCP-ng 8.3
                                    wget https://koji.xcp-ng.org/repos/user/8/8.3/xcpng-users.repo -O /etc/yum.repos.d/xcpng-users.repo
                                    
                                    # Update edk2
                                    yum update --enablerepo=xcp-ng-aperard1 edk2
                                    

                                    Alternatively, the RPM is there: https://koji.xcp-ng.org/repos/user/8/8.3/aperard1/x86_64/Packages/edk2-20220801-1.7.7.1.0.enomemfix.1.xcpng8.3.x86_64.rpm

                                    And if you are curious about the change, it's explained in there https://github.com/xcp-ng-rpms/edk2/pull/4

                                    Cheers,

                                    tperard opened this pull request in xcp-ng-rpms/edk2

                                    closed OvmfPkg/XenPlatformPei: Allocate more memory when PEI FV is shadowed #4

                                    MefosheezM K 2 Replies Last reply Reply Quote 1
                                    • MefosheezM Offline
                                      Mefosheez @anthonyper
                                      last edited by

                                      @anthonyper said in Imported VM Starts but Does Not Initialize the Display:

                                      yum update --enablerepo=xcp-ng-aperard1 edk2

                                      confirmed with ubunutu desktop 24.02 in uefi. i can confirm windows later today but this looks to be the fix. will this be folded into an upcoming release?

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                                      • A Online
                                        Andrew Top contributor @Mefosheez
                                        last edited by

                                        @Mefosheez Does your host not have large HAP size?

                                        Please show the output from xl dmesg | grep HAP on your XCP host.

                                        MefosheezM 1 Reply Last reply Reply Quote 0
                                        • MefosheezM Offline
                                          Mefosheez @Andrew
                                          last edited by

                                          @Andrew

                                          [08:30 xcp-r630 ~]# xl dmesg | grep HAP
                                          (XEN) [ 2.581645] HVM: Hardware Assisted Paging (HAP) detected
                                          (XEN) [ 2.584428] HVM: HAP page sizes: 4kB, 2MB, 1GB

                                          This is not something I have ever adjusted or set prior.

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                                          • A Online
                                            Andrew Top contributor @Mefosheez
                                            last edited by

                                            @Mefosheez @anthonyper If it solves the problem, then great!

                                            You can't set or change HAP, it's what the CPU chip supports. I was looking at the notes for the change and part of it is related to hosts that have small HAP sizes (ie, 4K, 2M, not 1G). As there are other updates in the same version the issues must have been fixed by a different part of the patch.

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