ACPI SCI flags

[Brown, Len]

>For an explicit override that is
>level/high, this appears not to work in some cases.  Or it may be the
>conforming override for irq 2 that is causing the problems.  See this
>message:

Is it possible to verify that the APIC RTE 20 is programmed correctly?

Also with storms like this, it is possible that the the victim
is not the actual cause.  Eg. Some other hardware device may
be driving IRQ20 below and since ACPI doesn't know how to handle it
you get a storm.  Eg. IRQ20 is shared between ACPI an another PCI
device.

I would not expect this to be in any way related to the timer override
from 0 to 2, since the timer is working properly.

Cheers,
-Len
------

interrupt		total		rate
irq6: fdc0		    9		   0
irq8: rtc		20328		 127
irq14: ata0		   39		   0
irq15: ata1		   64		   0
irq16: ahc1		  407		   2
irq17: pcm0		    2		   0
irq19: xl0 uhci0+	 2373		  14
irq20: acpi0          6979146	       43893
irq0: clk		15881		  99

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