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  1. Lustre
  2. LU-16727

kmod-lustre-client 2.15.2 on rockylinux 8.7(4.18.0-425.19.2.el8_7.x86_64) freezes and locks cpu

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Details

    • Bug
    • Resolution: Unresolved
    • Major
    • None
    • Lustre 2.15.2
    • None
    • fresh install of rockylinux 8.7(4.18.0-425.19.2.el8_7.x86_64) on a vm
    • 3
    • 9223372036854775807

    Description

      I have been working on upgrading some systems to rockylinux 8.7 and lustre 2.15.2. When I try to upgrade a client, the system freezes up hard the moment I try to modprobe either lustre or lnet. I have to hard power down the system in vmware to get it to boot again. My coworker suspects it is because of a kernel module verification failing, similar to this issue:
      https://stackoverflow.com/questions/24975377/kvm-module-verification-failed-signature-and-or-required-key-missing-taintin
      But I am unable to tell if that is truly the problem.

      I see in the changelog for 2.15.2 that only up to kernel 4.18.0-425.3.1.el8 is supported, and I am able to get 2.15.2 working by downgrading the kernel to 425.3.1, but my security department is rather draconian and will not let me run a non-current kernel. Is there anything I can try to get the lustre client working on 425.19.2?

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            wc-triage WC Triage
            kkonzem Kevin Konzem
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              Created:
              Updated: