PC randomly freezes after 4.x upgrade to 6.x. How to disable acpi completely?

Fri Apr 6 07:12:31 UTC 2007

Hello!

I upgraded my customer's FreeBSD from 4.x to 6.x series, but now the
PC ranodmly freezes (at least once in 24h) and needless to say
customer is very angry. I guess it could be related to ACPI (because
I've changed almost every part of hardware) so I want to disable it,
but how?

http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/acpi-overview.html
says:
  "ACPI can be disabled with the acpiconf(8) utility."
But I somehow don't see any option in acpiconf(8) how to disable ACPI.

http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/acpi-debug.html says:
  "hint.apic.0.disabled="1" in loader.conf."
But after reboot there is kernel panic while botting. Then the only
way to boot without kernel panic now is to select "Boot FreeBSD with
ACPI disabled". But "acpi.ko" is still in "kldstat" and I can't be
near that PC after every reboot to select "Boot FreeBSD with ACPI
disabled". Is even ACPI disabled then (because I see acpi.ko and ACPI
sysctl variables) anyway?

So the main question is - how can I disable ACPI forever and boot
without kernel panic?

dmesg:

Copyright (c) 1992-2007 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 6.2-STABLE #2: Wed Apr  4 10:57:22 EEST 2007
    root at mail.api.lv:/usr/src/sys/i386/compile/API-MAIL
ACPI APIC Table: <INTEL  D865GLC >
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) 4 CPU 2.60GHz (2593.68-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf29  Stepping = 9
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,
ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x4400<CNTX-ID,<b14>>
  Logical CPUs per core: 2
real memory  = 1592983552 (1519 MB)
avail memory = 1551642624 (1479 MB)
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
ioapic0 <Version 2.0> irqs 0-23 on motherboard
kbd1 at kbdmux0
ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
acpi0: <INTEL D865GLC> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
cpu0: <ACPI CPU> on acpi0
acpi_throttle0: <ACPI CPU Throttling> on cpu0
cpu1: <ACPI CPU> on acpi0
acpi_throttle1: <ACPI CPU Throttling> on cpu1
acpi_throttle1: failed to attach P_CNT
device_attach: acpi_throttle1 attach returned 6
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <Intel 82865G (865G GMCH) SVGA controller> port 0xec00-0xec07
mem 0xf0000000-0xf7ffffff,0xffa80000-0
xffafffff irq 16 at device 2.0 on pci0
agp0: detected 16252k stolen memory
agp0: aperture size is 128M
uhci0: <Intel 82801EB (ICH5) USB controller USB-A> port 0xc800-0xc81f
irq 16 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <Intel 82801EB (ICH5) USB controller USB-A> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <Intel 82801EB (ICH5) USB controller USB-B> port 0xcc00-0xcc1f
irq 19 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: <Intel 82801EB (ICH5) USB controller USB-B> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2: <Intel 82801EB (ICH5) USB controller USB-C> port 0xd000-0xd01f
irq 18 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
usb2: <Intel 82801EB (ICH5) USB controller USB-C> on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
uhci3: <Intel 82801EB (ICH5) USB controller USB-D> port 0xd400-0xd41f
irq 16 at device 29.3 on pci0
uhci3: [GIANT-LOCKED]
usb3: <Intel 82801EB (ICH5) USB controller USB-D> on uhci3
usb3: USB revision 1.0
uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
ehci0: <Intel 82801EB/R (ICH5) USB 2.0 controller> mem
0xffa7fc00-0xffa7ffff irq 23 at device 29.7 on pci0
ehci0: [GIANT-LOCKED]
usb4: EHCI version 1.0
usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
usb4: <Intel 82801EB/R (ICH5) USB 2.0 controller> on ehci0
usb4: USB revision 2.0
uhub4: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub4: 8 ports with 8 removable, self powered
pcib1: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci1: <ACPI PCI bus> on pcib1
rl0: <RealTek 8139 10/100BaseTX> port 0xb800-0xb8ff mem
0xff8ffc00-0xff8ffcff irq 22 at device 1.0 on pci1
miibus0: <MII bus> on rl0
rlphy0: <RealTek internal media interface> on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
rl0: Ethernet address: 00:30:4f:1b:1b:3b
rl1: <RealTek 8139 10/100BaseTX> port 0xb400-0xb4ff mem
0xff8ff800-0xff8ff8ff irq 17 at device 2.0 on pci1
miibus1: <MII bus> on rl1
rlphy1: <RealTek internal media interface> on miibus1
rlphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
rl1: Ethernet address: 00:30:4f:19:26:74
fxp0: <Intel 82801BA (D865) Pro/100 VE Ethernet> port 0xbc00-0xbc3f
mem 0xff8fe000-0xff8fefff irq 20 at de
vice 8.0 on pci1
miibus2: <MII bus> on fxp0
inphy0: <i82562ET 10/100 media interface> on miibus2
inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fxp0: Ethernet address: 00:07:e9:77:24:b3
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH5 UDMA100 controller> port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xffa0-0xffaf at device
31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata1: <ATA channel 1> on atapci0
atapci1: <Intel ICH5 SATA150 controller> port
0xe800-0xe807,0xe400-0xe403,0xe000-0xe007,0xdc00-0xdc03,0xd8
00-0xd80f irq 18 at device 31.2 on pci0
ata2: <ATA channel 0> on atapci1
ata3: <ATA channel 1> on atapci1
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
acpi_button0: <Sleep Button> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
fdc0: <floppy drive controller> port
0x3f0-0x3f1,0x3f2-0x3f3,0x3f4-0x3f5,0x3f7 irq 6 drq 2 on acpi0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
ppc0: <Standard parallel printer port> port 0x378-0x37f irq 7 on acpi0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
pmtimer0 on isa0
orm0: <ISA Option ROM> at iomem 0xc0000-0xc9fff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounters tick every 1.000 msec
acd0: CDROM <LTN486S/YQSM> at ata0-master PIO4
ad3: DMA limited to UDMA33, controller found non-ATA66 cable
ad3: 76351MB <SAMSUNG SP80A4H RT100-07> at ata1-slave UDMA33
ad4: 305245MB <SAMSUNG HD321KJ CP100-10> at ata2-master SATA150
ad6: 305245MB <SAMSUNG HD321KJ CP100-10> at ata3-master SATA150
SMP: AP CPU #1 Launched!
[..]