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    XCP-ng 8.2 updates announcements and testing

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    • _danielgurgel_ Offline
      _danielgurgel @stormi
      last edited by

      @stormi After the informed change, the backup occurred with 100% success, on no disk in the coalesce chain.

      We're migrating another cluster to XCP-ng 8!
      Thanks for the support, quick return and attention.

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      • stormiS Offline
        stormi Vates 🪐 XCP-ng Team
        last edited by

        A new update just pushed for XCP-ng 8.0: xcp-ng-xapi-plugins. It adds a plugin that the latest version of Xen Orchestra (just released) needs in order to offer a new feature: integration of netdata for all hosts into a single interface. See the blog post.

        If xcp-ng-xapi-plugins is the only update available for your hosts, then no need to reboot after installing. A toolstack restart is enough.

        If you don't need the new feature, you can skip this update until the next batch.

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        • stormiS Offline
          stormi Vates 🪐 XCP-ng Team
          last edited by

          New security update candidate for testing in XCP-ng 8.0 and 7.6.

          Fixes security issues in Xen. Also provides updated microcode for some Intel

          Details and discussion on https://github.com/xcp-ng/xcp/issues/319

          Please test (we simply need people to install them and check that they do not see obvious regressions).

          stormi created this issue in xcp-ng/xcp

          closed Xen and microcode security update (December 12th) #319

          1 Reply Last reply Reply Quote 3
          • stormiS Offline
            stormi Vates 🪐 XCP-ng Team
            last edited by

            Update published: https://xcp-ng.org/blog/2019/12/16/xen-and-intel-microcode-security-updates/

            B 1 Reply Last reply Reply Quote 0
            • B Offline
              brooktini86 @stormi
              last edited by

              This post is deleted!
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              • stormiS Offline
                stormi Vates 🪐 XCP-ng Team
                last edited by

                This post is deleted!
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                • akurzawaA Offline
                  akurzawa
                  last edited by akurzawa

                  Hi

                  I've a problem with freezing Windows VMs after applaying latest updates - do You know anything about it? Those vms have guest tools from citrix.

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

                    I haven't heard of it until now.

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                    • D Offline
                      DreDay @akurzawa
                      last edited by DreDay

                      @akurzawa I also experienced an issue after the update as well. After the host rebooted and I tried turning on a Windows 10 VM it hung on the Windows boot screen.

                      • I eventually force rebooted

                      • Force shutdown + Change CPU and RAM (not sure if the resource adjustments helped of not)

                      • Start VM and it came up in Windows recovery mode

                      In the windows recovery mode I just exited and it continued the boot process. This time it booted successfully but I was greeted with the below message upon login.
                      6c585cde-511c-453e-85e7-ebc9b4156ad3-image.png

                      I had to use XCP-ng center to use keyboard shortcuts to select yes on the dialog box as mouse input was not working. After the restart everything is working as usual again.

                      I also have the Windows Updates based guest tools enabled on this VM.

                      @stormi I think this has to do with the new version of guest tools Citrix has pushed from their release of CH8.1. Checking the services they now show major version 9. Not sure if @akurzawa is facing the exact same issue or a variant of it?

                      eeddbde4-3b35-42c9-a108-c331a5d74dee-image.png

                      1 Reply Last reply Reply Quote 1
                      • borzelB Offline
                        borzel XCP-ng Center Team
                        last edited by

                        This smells like windows pv drivers upgrades. Had similiar effects on various VMs.

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

                          FYI: https://support.citrix.com/article/CTX235404

                          "Important: Updating to this version of the driver removes the quiesced snapshots capability of the VM. If you are using quiesced snapshots and wish to retain this functionality, do not adopt these 9.0.0.x drivers."

                          They do not tell about crashing VMs though 🙂

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                          • C Offline
                            cg
                            last edited by cg

                            Citrix also has a long history of problematic VM guest-tools. Race conditions with broken drivers, unbootable VMs, broken agents... It's a pain in the a**.
                            If you like your VMs: Always make a snapshot of every VM before updating the tools.

                            Is known why they remove the VSS-functionality? I don't get why they remove features (again).

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                            • D Offline
                              DreDay @stormi
                              last edited by

                              @stormi said in Updates announcements and testing:

                              FYI: https://support.citrix.com/article/CTX235404

                              "Important: Updating to this version of the driver removes the quiesced snapshots capability of the VM. If you are using quiesced snapshots and wish to retain this functionality, do not adopt these 9.0.0.x drivers."

                              They do not tell about crashing VMs though 🙂

                              I read the support article hoping for more details on how to "...retain this functionality, do not adopt these 9.0.0.x drivers." but the article does not mention that either.

                              I did not opt to install the new guest tools at any point. I only shutdown the VM to complete the host patches.
                              Also see the image below, unless it installs guest tools through a side channel that does not show in the Windows updates history.ceaefbc8-6188-43c7-a985-09f5936047fb-image.png

                              Would simply disabling the "Windows Update tools" advanced option in XOA/XO stop it from adopting the new guest tools?

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                              • stormiS Offline
                                stormi Vates 🪐 XCP-ng Team
                                last edited by

                                I have pushed an update to the netdata and netdata-ui packages.

                                No need to reboot after installing it even if XO tells you so.

                                It fixes an upstream issue where in some cases the cache size on disk grows indefinitely without respecting the 256M default limit (reproduced only internally but I don't want to take a risk). Only netdata-ui is concerned. If you are using netdata through XO, then there's no risk for your hosts. Now netdata will only store 1h of data in RAM, nothing on disk.

                                As usual: https://github.com/xcp-ng/xcp/wiki/Updates-Howto

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

                                  I have pushed an updated bnxt_en driver as broadcom-bnxt-en-alt for 8.0 and 8.1. It is in xcp-ng-testing for 8.0. If fixes a very specific issue from what I can see in the code diff, so no need to install it if everything is already OK for you.

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                                  • stormiS Offline
                                    stormi Vates 🪐 XCP-ng Team
                                    last edited by

                                    By the way, is anyone interested (and why) in updated drivers for cisco-enic and cisco-fnic?

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                                    • O Offline
                                      onyxfire @stormi
                                      last edited by

                                      This post is deleted!
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                                      • stormiS Offline
                                        stormi Vates 🪐 XCP-ng Team
                                        last edited by

                                        This post is deleted!
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                                        • stormiS Offline
                                          stormi Vates 🪐 XCP-ng Team
                                          last edited by stormi

                                          First update for XCP-ng 8.1:

                                          • xcp-ng-deps for pulling the gpumon package. That issue has kept us busy this week when people started reporting installed or upgraded systems that would be unreachable from XO and XCP-ng Center after a reboot. Turns out that XAPI needs gpumon, a package that can only be built using a proprietary (from what I remember. One would need to check the license) nVIDIA developement toolkit. I had removed it from XCP-ng 8.1 because I was convinced that it was only necessary with the vgpu feature with nVIDIA, and we don't have the vgpu package in XCP-ng because it is closed-source. XAPI's start process stalls without an error message if there's an nVIDIA GPU. Installing gpumon fixes it.
                                            • after the update: if you were affected by the issue (you would know), you may need to do an emergency network restart and possibly reconnect the SRs. There may be other consequences for the hosts, such as missing removable media from VMs and possibly others. If you have a way to come back to a backup and reinstall with the fixed ISO (released 2020-04-06), this may be the safest path.
                                            • see also https://github.com/xcp-ng/xcp/wiki/XCP-ng-8.1-Known-Issues#host-unreachable-after-upgrade-or-fresh-installation-on-hosts-having-an-nvidia-gpu
                                          • xcp-ng-release* for reducing chrony-wait's timeout from 600s to 120s. So if your host can't connect the ntp server that was configured at installation, you'll only have to wait for 2 minutes, not 10. But your hosts really should be able to connect a ntp server. Accurate time is required to avoid timing and synchronisation issues.

                                          No reboot required if your host is already behaving correctly. If you have a discrete nVIDIA GPU and the host had no issue, then 1. I'm surprised, 2. I advise to reboot.

                                          New installation ISOs including those two updates will be released shortly. 2020-04-06 update: they have been released, named xcp-ng-8.1.0-2.iso and xcp-ng-8.1.0-2-netinstall.iso.

                                          As ususal, see https://github.com/xcp-ng/xcp/wiki/Updates-Howto

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                                          • M Offline
                                            marekm @stormi
                                            last edited by

                                            @stormi Is this related to https://bugs.xenserver.org/browse/XSO-936 (build dependency on gdk-devel) - or a different issue? (I suspect gdk-devel is some part of GNOME, not nVidia proprietary - but could be wrong.)

                                            stormiS 1 Reply Last reply Reply Quote 0
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