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
