Re: 2.4.4-ac5 aic7xxx causes hang on my machine

[Doug Ledford <dledford@redhat.com>]

Alan Cox wrote:

> > setup all possible boot devices, only devices non-essential to the boot
> > process (sound cards, modems, crap like that) get left unconfigured.  Not
> 
> It only has to do minimal setup on them. If the BIOS calls are polled then
> assigning an IRQ is quite optional

The only way a motherboard BIOS would know if the PCI BIOS used polling
methods instead of interrupt methods is if it was a built in device.  For all
non-built in devices, it can't assume it won't need an interrupt if the card
uses interrupts at all.  I find it extremely unlikely that there exists a
motherboard BIOS that *doesn't* at least assign the I/O space area and the IRQ
for all bootable devices on the system, regardless of PnPOS settings.  Name
one concrete example of a motherboard BIOS that doesn't and I'll recant.

-- 

 Doug Ledford <dledford@redhat.com>  http://people.redhat.com/dledford
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