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Date: Wed, 24 Oct 2007 17:33:53 +0200
From: Jan Henrik Sylvester <me@janh.de>
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Subject: Re: 7.0-BETA1: interrupt storm -- do I have to worry?
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Ivan wrote:
 > Jan Henrik Sylvester wrote:
 > > I just installed 7.0-BETA1 for testing. I found this in dmesg:
 > >
 > > interrupt storm detected on "irq10:"; throttling interrupt source
 > >
 > > Do I have to worry about this? (Was not there in 6.2.)
 >
 > Hmm, it's probably USB on irq10. How often do you get it? I have a
 > similar laptop with ICH4 on 7-CURRENT which works ok. Please post the
 > output of vmstat -i.

I get this on each boot -- always at the same time.

'vmstat -i' on 7.0-BETA1:

interrupt                          total       rate
irq0: clk                         214309        996
irq1: atkbd0                         171          0
irq5: bfe0 uhci1                     593          2
irq7: ppc0                             1          0
irq8: rtc                          27440        127
irq9: iwi0 acpi0                     755          3
irq10: cbb0 cbb1+*                 16296         75
irq12: psm0                          486          2
irq14: ata0                         6660         30
irq15: ata1                         1670          7
Total                             268381       1248

'vmstat -i' on 6.2-RELEASE-p7:

interrupt                          total       rate
irq0: clk                         553229        996
irq1: atkbd0                         778          1
irq5: bfe0 uhci1                    1768          3
irq7: ppc0                             1          0
irq8: rtc                          70803        127
irq9: iwi0 acpi0                    1705          3
irq10: cbb0 cbb1+*                 46543         83
irq12: psm0                         1458          2
irq14: ata0                        12536         22
irq15: ata1                         4171          7
Total                             692992       1248