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Date: Tue, 28 Sep 2010 14:11:15 -0700 (PDT)
From: Don Lewis <truckman@FreeBSD.org>
To: freebsd@jdc.parodius.com
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Cc: stable@FreeBSD.org, sterling@camdensoftware.com
Subject: Re: CPU time accounting broken on 8-STABLE machine after a few
 hours of uptime
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On 28 Sep, Don Lewis wrote:


> % vmstat -i
> interrupt                          total       rate
> irq0: clk                       60683442       1000
> irq1: atkbd0                           6          0
> irq8: rtc                        7765537        127
> irq9: acpi0                           13          0
> irq10: ohci0 ehci1+             10275064        169
> irq11: fwohci0 ahc+               132133          2
> irq12: psm0                           21          0
> irq14: ata0                        90982          1
> irq15: nfe0 ata1                   18363          0
> 
> I'm not sure why I'm getting USB interrupts.  There aren't any USB
> devices plugged into this machine.

Answer: irq 10 is also shared by vgapci0 and atapci1.