FreeBSD 7.0 interrupt storm with irq0: clk
nate at root.org
Sun Oct 14 14:06:40 PDT 2007
Abdullah Ibn Hamad Al-Marri wrote:
> On 2007-Oct-14 15:36:39 +0300, Abdullah Ibn Hamad Al-Marri
> <almarrie at gmail.com> wrote:
>> On 10/13/07, Nate Lawson <nate at root.org> wrote:
>>> Rolf Witt wrote:
>>>> Abdullah Ibn Hamad Al-Marri schrieb:
>>>>> I'm getting interrupt storm lately.
>> But still same issue with irq0: clk but less now.
>> IM# vmstat -i
>> interrupt total rate
>> irq0: clk 37009569 1000
>> So far, you haven't provided any evidence of any "interrupt storm" or
>> how it might be related to acpi. And 7.0 isn't stable yet.
>> The default HZ is 1000 so unless you explicitly change it in your
>> kernel config, you should have 1000 clock interrupts/sec.
> Actually no more interrupt after I added these options back to my kernel while it's UP not SMP, and vmstat output has changed totally.
> # To make an SMP kernel, the next two lines are needed
> options SMP # Symmetric MultiProcessor Kernel
> device apic # I/O APIC
> IM# vmstat -i
> interrupt total rate
> irq14: ata0 4837 0
> irq23: fxp0 2203298 86
> cpu0: timer 50755929 1999
> Total 52964064 2086
> I even don't see irq0 in vmstat at all.
> Any hints?
All you did was enable the lapic timer. I'm sorry that I don't have
time to explain all the PC stuff to you, just stick with GENERIC and
you'll be fine.
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