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  • Re: Illegal instruction when running in kvm?

    From Alex DEKKER@21:1/5 to All on Sat Feb 12 00:00:01 2022
    On 11/02/2022 09:22, Libor Klepáč wrote:
    I'm migrating from current Dell T1700SFF with i7 CPU to Dell R420 with
    xeon processor.

    and dmesg says
    [ 248.820494] traps: QSGRenderThread[2145] trap invalid opcode ip:7fd5842f6027 sp:7fd5858a0820 error:0


    I think this is much more likely to be a KVM issue than a KDE one, but
    what exactly, I cannot say. Something like, new CPU is missing some instructions that old CPU had?

    alexd

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  • From Alex DEKKER@21:1/5 to All on Mon Feb 14 14:10:02 2022
    On 14/02/2022 08:43, Libor Klepáč wrote:
    But it seems to be interesting, that some HW fingerprint is embeded in
    KDE config.


    Well...it's going to be the Qt libraries that use whatever these
    functions are, probably not KDE itself. But I never had this issue when
    using same KDE profile shared to different machines with NFS. So I don't
    really know what the cause is here.

    alexd

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