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    [RHEL kernel bug] XCP vm fails to boot after newest kernel applied.

    Scheduled Pinned Locked Moved Solved Compute
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    • B Offline
      bberndt @Greg_E
      last edited by

      @Greg_E
      I made a free account.
      Resolution
      The issue has been resolved with the errata: RHBA-2025:4337. Hence, update the kernel to kernel-4.18.0-553.51.1.el8_10 to fix the issue.

      id assume it arrives soon? I as well, haven't seen it yet.

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

        It's now available, yes 🙂 After update, reboot will work

        edit: ha answered for RH, Alma and Rocky will follow soon I suppose

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        • G Offline
          Greg_E @olivierlambert
          last edited by

          @olivierlambert

          I just updated an Alma 8 and it has the .51 kernel now.

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          • B Offline
            bberndt @Greg_E
            last edited by

            @Greg_E said in XCP vm fails to boot after newest kernel applied.:

            @olivierlambert

            I just updated an Alma 8 and it has the .51 kernel now.

            Tried one of my Rocky's and still .50. I wonder where we can see the status of downstream fixes like that? anyone know? thanks.

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            • G Offline
              Greg_E @bberndt
              last edited by

              @bberndt

              This may sound stupid, but here goes...

              Does Rocky need to update to .50 before it can update to .51?

              I'd guess no, but I've been away from RHEL based stuff since the IBM rug pull. Only coming back because I may need it in the future as I jockey around trying to improve my paycheck.

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              • B Offline
                bberndt @Greg_E
                last edited by

                @Greg_E said in XCP vm fails to boot after newest kernel applied.:

                @bberndt

                This may sound stupid, but here goes...

                Does Rocky need to update to .50 before it can update to .51?

                I'd guess no, but I've been away from RHEL based stuff since the IBM rug pull. Only coming back because I may need it in the future as I jockey around trying to improve my paycheck.

                https://bugs.rockylinux.org/view.php?id=9307
                so, prolly soon-ish.

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                • G Offline
                  Greg_E @bberndt
                  last edited by

                  @bberndt

                  Alma must have dropped everything to push this out. I wonder what Oracle is doing, guessing they were hit by this too. I'd guess Rocky has this out pretty fast, they know it is important.

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                  • G Offline
                    glreed735
                    last edited by

                    I updated my Redhat 8 instances to the .51 kernel and it's back to working.

                    The kernel version 4.18.0-553.51.1.el8_10.x86_64 for Red Hat Enterprise Linux 8 was released on April 30, 2025, as part of the bug fix advisory RHBA-2025:4337. ​

                    This update addresses various issues and includes enhancements to improve system stability and performance. For detailed information about the fixes and improvements in this release, you can refer to the official Red Hat advisory.

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                    • B Offline
                      bberndt @glreed735
                      last edited by

                      .51 for Rocky showed up today. Running my first test. and from .22.

                      Seems successful!

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

                        Great news 🙂 Closing this as fixed. Thanks everyone for your feedback!

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