FreeBSD 7.0 interrupt storm with irq0: clk

Nate Lawson nate at root.org
Sun Oct 14 11:45:58 PDT 2007


Abdullah Ibn Hamad Al-Marri 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.
>>> No, you use Polling and the interrupt-rate is 1000HZ (your HZ-Option).
>>> Thats ok.
>>>
>>>
>>>> IM# vmstat -i
>>>> interrupt                          total       rate
>>>> irq0: clk                      278426173       1000
>>>> options         DEVICE_POLLING
>>>> options         HZ=1000
>> He's right.  The above options say "run my clock at 1000 hz and poll".
>>
>> --
>> Nate
> 
> Thank you guys.
> 
> I removed them.
> 
> But still same issue with irq0: clk but less now.
> 
> IM# vmstat -i
> interrupt                          total       rate
> irq0: clk                       37009569       1000
> irq4: fxp0                       2886384         77
> irq8: rtc                        4736510        127
> irq14: ata0                        79714          2
> Total                           44712177       1208

I don't see a storm -- it's coming in at exactly 1000 per second.  The
above shows your machine probably has been up about 10 hours.

-- 
Nate


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