FreeBSD 7.0 interrupt storm with irq0: clk

[Nate Lawson]

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:
>>>>> Hello,
>>>>>
>>>>> 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.

-- 
Nate