Re: "APIC error on CPUx" - what does this mean?

[Petr Vandrovec]

On  7 Jan 02 at 23:17, Chris Wedgwood wrote:
> On Thu, Jan 03, 2002 at 10:38:27PM +0000, Alan Cox wrote:
>     The occasional APIC error is fine (its logging a hardware event -
>     probably something that caused enough noise to lose a message and
>     retry it). The APIC bus is designed to stand these occasional
>     errors
> 
> I'm curious... is there any way to determine what is causing these?
> On a UP athlon I have:
> 
> cw:tty5@charon(cw)$ uname -r ; uptime && grep ERR /proc/interrupts
> 2.4.17-rc2
>  02:09:50 up 4 days,  5:18, 10 users,  load average: 0.00, 0.00, 0.00
> ERR:       5216
> 
> which equates several per minute at times... no funny hardware, not
> running X11, and I don't remembering seeing these a while ago on this
> same mainboard (but I never really looked either, so that might not be
> true).

They are spurious IRQ 7, just message is printed only once during kernel
lifetime... I have about three spurious IRQ 7 per each 1000 interrupts 
delivered to CPU. It is on A7V (Via KT133).
                                            Best regards,
                                                Petr Vandrovec
                                                [e-mail]