Re: SMC SYS-5018A-FTN4 lapic weirdness (9front)

Hi.

I get the exact same error every time I (in|de)crease the backlight
brightness in the x220.

On Thu, Apr 18, 2019, 3:49 AM Lyndon Nerenberg <[email protected]> wrote:

> I have a stack of Supermicro SYS-5018A-FTN4 servers upon which  I'm trying
> to
> spin up 9front.
>
> For the most part they work, but one annoyance is the *endless* stream of
>
>   cpu0: lapicerror: 0x00000080
>
> messages the kernel prints out.  Sometimes these originate from cpu1 as
> well.
> The hardware has eight CPU cores.  I don't think I've seen anything from
> cpu>1, but in the blizzard of messages, who knows.
>
> I poked a wee bit inside the kernel source, but I don't have time right now
> to chase this.  The hardware runs fine, other than refusing to reboot,
> which
> I put down to the usual BIOS ACPI table stupidity.
>
> For the time being I'm going to put a filter on the kprints, but I'm
> curious
> if this sounds familiar to anyone.
>
> Note this happens with both the 32- and 64-bit kernels.
>
> I don't have a quick way to attach sysinfo(1) to this message, but if
> somebody
> can use that I'll figure something out.
>
> --lyndon
>
>