On Fri, 23 Feb 2018, Paul Menzel wrote:
> On the ASRock E350M1 (AMD A50M), since Linux 4.15 I get the message below.
>     do_IRQ: 1.55 No irq handler for vector

Thanks for the report, but the single line of dmesg w/o any context is not
really helpful. Can you please provide a larger piece of dmesg which shows
in which context this happens.

I assume that this happens during early boot right when CPU1 is brought up,

Borislav is seeing similar issues on larger AMD machines. The interrupt
seems to come from BIOS/microcode during bringup of secondary CPUs and we
have no idea why.



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