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  1. XenServer Org
  2. XSO-701

Xenserver 7.0 SMP HVM Guest 4.10.1 hang on boot

    Details

    • Type: Bug
    • Status: Done (View Workflow)
    • Priority: Major
    • Resolution: Done
    • Affects Version/s: 7.0, 7.1
    • Fix Version/s: None
    • Component/s: VM Lifecycle
    • Labels:
      None
    • Environment:

      Skylake 6700

      Description

      We are observing an issue booting Linux 4.10.1 kernel HVM SMP guests on our
      XenServer cluster (effects all 3 Skylake nodes) across multiple guest distros
      (Ubuntu and CoreOS) with the guests hanging on boot.

      The guests will hang with the last boot message being:

      "[ 0.132038] x86: Booting SMP configuration"

      Bisecting the revision from 4.9 to 4.10.1 I tracked it down to

      1. first bad commit: [3be134e5152f08e8bd3c2afdaac723f64d93c2bb] Merge tag
        'libnvdimm-for-4.10' of
        git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

      Changing the Guests to 1 CPU permits it to continue booting (it later hangs
      on:

      [ 1.633261] xvda: xvda1 xvda2 xvda3 xvda4 xvda6 xvda7 xvda9

      Which I will bisect and discuss separately.). I have more detail on
      https://github.com/coreos/bugs/issues/1849 , since it effect ubuntu as well I
      believe its better handled here.

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            • Assignee:
              rosslagerwall Ross Lagerwall
              Reporter:
              timechanter Justin Smith
            • Votes:
              9 Vote for this issue
              Watchers:
              22 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: