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Thread: Kernel 4.14.1 bug on Apollo Lake CPU N3450

  1. #1

    Default Kernel 4.14.1 bug on Apollo Lake CPU N3450

    Hello! Yesterday I updated my Tumbleweed server on Intel Celeron N3450 (Apollo Lake) CPU, and the kernel updated from 4.13.12 to 4.14.1.

    After that I got lots of kernel errors in the log like:
    Code:
    Nov 29 16:31:04 voyo kernel: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P1698 } 15397 jiffies s: 145 root: 0x0/T
    Nov 29 16:31:04 voyo kernel: blocking rcu_node structures:
    Nov 29 16:31:23 voyo sshd[2471]: pam_systemd(sshd:session): Failed to create session: Connection timed out
    and often hang ups with 100% CPU load. The server even could not reboot normally, it hanged on boot.

    I reverted to the previous kernel 4.13.12 and the problem disappeared.

    I don't know where to report this kernel bug.

  2. #2
    Join Date
    Jun 2008
    Location
    Netherlands
    Posts
    24,729

    Default Re: Kernel 4.14.1 bug on Apollo Lake CPU N3450

    As this is a kernel belonging to the Tmbleweed snapshot, I would start with openSUSE: https://en.opensuse.org/openSUSE:Submitting_bug_reports
    Henk van Velden

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