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Date:      Wed, 18 Apr 2007 03:00:19 -0700
From:      Darren Pilgrim <phi@evilphi.com>
To:        freebsd-current@freebsd.org
Subject:   Re: IRQ Question ?
Message-ID:  <4625EC33.3020105@evilphi.com>
In-Reply-To: <20070418045013.GL86572@obelix.dsto.defence.gov.au>
References:  <20070418045013.GL86572@obelix.dsto.defence.gov.au>

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Wilkinson, Alex wrote:
 > Why don't IRQs in the BIOS map to IRQs in the output of vmstat(8) ?

Because the definition of IRQ isn't the same in both contexts.  The BIOS 
is showing you the legacy mapping for PCI interrupts.  FreeBSD ignores 
the BIOS and reports the enumeration used by the APIC.

-- 
Darren Pilgrim



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