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Subject: Re: ata unable to map interrupt
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Andrew Gallatin writes:
 > 
 > Today's kernel:
 > 
 > atapci0: <ServerWorks CSB5 UDMA100 controller> port 0xffa0-0xffaf,0x374-0x377,0x170-0x177,0x3f4-0x3f7,0x1f0-0x1f7 at device 15.1 on pci0
 > atapci0: unable to map interrupt

Argh!  Unable to map interrupt, not I/O port.  Sorry.. An I/O port
mapping was the last thing that left me at a mountroot prompt on
this f'ing box.

The problem is really with mapping interrupts.  I've left mptable, and
verbose boot output from working and nonworking kernels at
http://people.freebsd.org/~gallatin/ata_irq/

As I said before, it doesn't seem to matter if I enable or disable
ACPI.  I've also tried set hw.apic.mixed_mode=0

A kernel from another box from June 19th seems to work, so
maybe it happened in the last 12 days or so.

Drew