Cubieboard: Spurious interrupt detected
Maxim V FIlimonov
che at bein.link
Sat Sep 6 16:52:56 UTC 2014
On Saturday 06 September 2014 10:47:17 Ian Lepore wrote:
> On Sat, 2014-09-06 at 20:20 +0400, Maxim V FIlimonov wrote:
> > On Saturday 06 September 2014 01:43:23 Maxim V FIlimonov wrote:
> > > And another problem: every now and then the kernel says something like
> > > that: Sep 5 19:22:37 kernel: Spurious interrupt detected
> > > Sep 5 19:22:37 kernel: Spurious interrupt detected
> > > Sep 5 19:23:46 last message repeated 10 times
> > >
> > > I've heard that FreeBSD happens to do that on ARM devices. What could be
> > > the problem here?
> >
> > A small detail: when I turn off SMP in the kernel config, the message
> > disappears, but everything becomes too slow to operate.
>
> Post the output of 'vmstat -i' -- it sounds like maybe there's an
> interrupt handler monopolizing the system, or a timer that's firing at
> way too high a rate, or something like that.
Here it is:
root at cubie:~ # vmstat -i
interrupt total rate
irq0: ipi 10968 15
irq3: ipi 293 0
irq6: ipi 786 1
irq33: uart0 217 0
irq54: a10_timer0 1629 2
irq71: ehci0 5791 8
irq87: emac0 308 0
Total 19992 28
--
wbr, Maxim Filimonov
che at bein.link
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