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    Imported VM Starts but Does Not Initialize the Display

    Scheduled Pinned Locked Moved Solved Xen Orchestra
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    • 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.

      1 Reply Last reply Reply Quote 1
      • 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.

                1 Reply Last reply Reply Quote 0
                • 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.

                              1 Reply Last reply Reply Quote 0
                              • 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?

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

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

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

                                          YES - you fixed it! Thank you!!!
                                          I tried the package and it worked - the VM started and was able to initialize the display and finish booting up. Glad you found the issue and I'm even more glad that it was my report that prompted you to look into this. This is a true testament to the power of this community.

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                                          • K kagbasi-ngc has marked this topic as solved on
                                          • olivierlambertO Offline
                                            olivierlambert Vates 🪐 Co-Founder CEO
                                            last edited by

                                            @anthonyper so your fix is working 😄 Going in a next train of updates then 🙂

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