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Date:      Wed, 11 Aug 2004 16:23:36 -0700
From:      Nate Lawson <>
To:        Daniel Eriksson <>
Subject:   Re: cvs commit: src/sys/dev/acpica acpi_pci_link.c acpi_pcib.cacpi_pcib_acpi.c acpi_pcib_pci.c acpi_pcibvar.h
Message-ID:  <>

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Daniel Eriksson wrote:
> John Baldwin wrote:
>>He's using an I/O APIC.  These are probably all entries that 
>>don't have a link 
>>device but just a hardwired global interrupt number.  Did you 
>>test that case?
> Yes, I have "device apic" in my kernel config file. Is this a bad thing to
> do for a UP system?
> I remember googling "device apic" and finding at least some info that seemed
> to indicate that it was off by default in GENERIC simply because there are a
> few I/O APICs that are buggy, and that it actually helped on systems with
> properly working chips.

No need to disable it although if disabling it fixes your problems, that 
would be an interesting data point.

> Should I leave it out of my kernel config? (I'm just about to recompile with
> Nate's extra debug output patch.)

Leave it in.  The debug output is more important right now.


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