ACPI problems

[ejc <eric.j.christeson@xxxxxxxxx>]

I've been tracking HEAD for a while now and it broke this morning. It
boots fine with ACPI disabled.
Here's what I see as relevant from the boot log:

pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
acpi_config_intr: Skip SCI config
vgapci0: <VGA-compatible display> port 0xefa8-0xefaf mem
0xfeb80000-0xfebfffff,0xe8000000-0xefffffff irq 11 at device 2.0 on
pci0
agp0: <Intel 82865G (865G GMCH) SVGA controller> on vgapci0
agp0: detected 8060k stolen memory
agp0: aperture size is 128M
drm0: <Intel i865G GMCH> on vgapci0
vgapci0: child drm0 requested pci_enable_busmaster
info: [drm] AGP at 0xe8000000 128MB
info: [drm] Initialized i915 1.6.0 20080730
pcib1: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci1: <ACPI PCI bus> on pcib1
em0: <Intel(R) PRO/1000 Network Connection 82540EM 6.9.6> port
0xdf40-0xdf7f mem 0xfeae0000-0xfeafffff irq 9 at device 12.0 on pci1
em0: Unable to allocate bus resource: interrupt
em0: Allocation of PCI resources failed
device_probe_and_attach: em0 attach returned 6
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH5 UDMA100 controller> port
0xffa0-0xffaf,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 mem
0xfeb7fc00-0xfeb7ffff irq 9 at device 31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
acd0: DMA limited to UDMA33, controller found non-ATA66 cable
disk scheduler: set policy of acd0 to noop
acd0: DVDR <ATAPI DVD A DH20A4H/QP53> at ata1-master UDMA33
atapci1: <Intel ICH5 SATA150 controller> port
0xfea0-0xfeaf,0xfe30-0xfe33,0xfe20-0xfe27,0xfe10-0xfe13,0xfe00-0xfe07
irq 9 at device 31.2 on pci0
atapci1: unable to map interrupt
device_probe_and_attach: atapci1 attach returned 6
ichsmb0: <Intel 82801EB (ICH5) SMBus controller> port 0xefe0-0xefff
irq 5 at device 31.3 on pci0
smbus0: <System Management Bus> on ichsmb0


Note the 'Skip SCI config' message and the fact that the 2 devices
trying to use irq 9 can't use it.

It appears related to commit 3a32a4c6817bea6229e54f81d2e9be3fa8b059d3.

That contains the 'Skip SCI config' line.  From what I can tell, irq 9
doesn't get configured because
it's the SCI interrupt, but this stuff is voodoo magick to me :-)

Normally I'd just change BIOS settings so these devices would use a
different irq, but this BIOS doesn't
have those knobs.

Let me know if I can provide more information.  A verbose boot doesn't
work well, as I can't save the
boot messages and they scroll fast.

Thanks,
Eric