I notice a lot of acpi regressions in LKML

sam@aces:~$ lspci -vnn
00:00.0 RAM memory [0500]: nVidia Corporation C51 Host Bridge
[10de:02f3] (rev a2)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0
        Capabilities: <access denied>

00:00.1 RAM memory [0500]: nVidia Corporation C51 Memory Controller 0
[10de:02fa] (rev a2)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: 66MHz, fast devsel

00:00.2 RAM memory [0500]: nVidia Corporation C51 Memory Controller 1
[10de:02fe] (rev a2)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: 66MHz, fast devsel

00:00.3 RAM memory [0500]: nVidia Corporation C51 Memory Controller 5
[10de:02f8] (rev a2)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: 66MHz, fast devsel

00:00.4 RAM memory [0500]: nVidia Corporation C51 Memory Controller 4
[10de:02f9] (rev a2)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0

00:00.5 RAM memory [0500]: nVidia Corporation C51 Host Bridge
[10de:02ff] (rev a2)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0
        Capabilities: <access denied>

00:00.6 RAM memory [0500]: nVidia Corporation C51 Memory Controller 3
[10de:027f] (rev a2)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: 66MHz, fast devsel

00:00.7 RAM memory [0500]: nVidia Corporation C51 Memory Controller 2
[10de:027e] (rev a2)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: 66MHz, fast devsel

00:02.0 PCI bridge [0604]: nVidia Corporation C51 PCI Express Bridge
[10de:02fc] (rev a1) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        Capabilities: <access denied>

00:03.0 PCI bridge [0604]: nVidia Corporation C51 PCI Express Bridge
[10de:02fd] (rev a1) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
        I/O behind bridge: 00004000-00004fff
        Memory behind bridge: c4000000-c40fffff
        Capabilities: <access denied>

00:04.0 PCI bridge [0604]: nVidia Corporation C51 PCI Express Bridge
[10de:02fb] (rev a1) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
        Capabilities: <access denied>

00:05.0 VGA compatible controller [0300]: nVidia Corporation MCP51 PCI-X
GeForce Go 6100 [10de:0247] (rev a2) (prog-if 00 [VGA])
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20
        Memory at c2000000 (32-bit, non-prefetchable) [size=16M]
        Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Memory at c1000000 (64-bit, non-prefetchable) [size=16M]
        [virtual] Expansion ROM at 54000000 [disabled] [size=128K]
        Capabilities: <access denied>

00:09.0 RAM memory [0500]: nVidia Corporation MCP51 Host Bridge
[10de:0270] (rev a2)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0
        Capabilities: <access denied>

00:0a.0 ISA bridge [0601]: nVidia Corporation MCP51 LPC Bridge
[10de:0260] (rev a3)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0

00:0a.1 SMBus [0c05]: nVidia Corporation MCP51 SMBus [10de:0264] (rev a3)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: 66MHz, fast devsel, IRQ 10
        I/O ports at 3040 [size=64]
        I/O ports at 3000 [size=64]
        Capabilities: <access denied>

00:0a.3 Co-processor [0b40]: nVidia Corporation MCP51 PMU [10de:0271]
(rev a3)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 11
        Memory at c0040000 (32-bit, non-prefetchable) [size=256K]

00:0b.0 USB Controller [0c03]: nVidia Corporation MCP51 USB Controller
[10de:026d] (rev a3) (prog-if 10 [OHCI])
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 19
        Memory at c0004000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: <access denied>

00:0b.1 USB Controller [0c03]: nVidia Corporation MCP51 USB Controller
[10de:026e] (rev a3) (prog-if 20 [EHCI])
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 16
        Memory at c0005000 (32-bit, non-prefetchable) [size=256]
        Capabilities: <access denied>

00:0d.0 IDE interface [0101]: nVidia Corporation MCP51 IDE [10de:0265]
(rev f1) (prog-if 8a [Master SecP PriP])
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0
        [virtual] Memory at 000001f0 (32-bit, non-prefetchable)
[disabled] [size=8]
        [virtual] Memory at 000003f0 (type 3, non-prefetchable)
[disabled] [size=1]
        [virtual] Memory at 00000170 (32-bit, non-prefetchable)
[disabled] [size=8]
        [virtual] Memory at 00000370 (type 3, non-prefetchable)
[disabled] [size=1]
        I/O ports at 3080 [size=16]
        Capabilities: <access denied>

00:0e.0 IDE interface [0101]: nVidia Corporation MCP51 Serial ATA
Controller [10de:0266] (rev f1) (prog-if 85 [Master SecO PriO])
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 17
        I/O ports at 30b0 [size=8]
        I/O ports at 30a4 [size=4]
        I/O ports at 30a8 [size=8]
        I/O ports at 30a0 [size=4]
        I/O ports at 3090 [size=16]
        Memory at c0006000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: <access denied>

00:10.0 PCI bridge [0604]: nVidia Corporation MCP51 PCI Bridge
[10de:026f] (rev a2) (prog-if 01 [Subtractive decode])
        Flags: bus master, 66MHz, fast devsel, latency 0
        Bus: primary=00, secondary=04, subordinate=08, sec-latency=64
        I/O behind bridge: 00005000-00005fff
        Memory behind bridge: c3000000-c30fffff
        Prefetchable memory behind bridge: 50000000-53ffffff
        Capabilities: <access denied>

00:10.1 Audio device [0403]: nVidia Corporation MCP51 High Definition
Audio [10de:026c] (rev a2)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22
        Memory at c0000000 (32-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>

00:14.0 Bridge [0680]: nVidia Corporation MCP51 Ethernet Controller
[10de:0269] (rev a3)
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 18
        Memory at c0007000 (32-bit, non-prefetchable) [size=4K]
        I/O ports at 30b8 [size=8]
        Capabilities: <access denied>

00:18.0 Host bridge [0600]: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] HyperTransport Technology Configuration [1022:1100]
        Flags: fast devsel
        Capabilities: <access denied>

00:18.1 Host bridge [0600]: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] Address Map [1022:1101]
        Flags: fast devsel

00:18.2 Host bridge [0600]: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] DRAM Controller [1022:1102]
        Flags: fast devsel

00:18.3 Host bridge [0600]: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] Miscellaneous Control [1022:1103]
        Flags: fast devsel
        Capabilities: <access denied>

04:05.0 Ethernet controller [0200]: Atheros Communications, Inc. AR2413
802.11bg NIC [168c:001a] (rev 01)
        Subsystem: AMBIT Microsystem Corp. Unknown device [1468:0418]
        Flags: bus master, medium devsel, latency 168, IRQ 21
        Memory at c3000000 (32-bit, non-prefetchable) [size=64K]
        Capabilities: <access denied>

04:06.0 CardBus bridge [0607]: Texas Instruments PCIxx12 Cardbus
Controller [104c:8039]
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, medium devsel, latency 168, IRQ 11
        Memory at c3010000 (32-bit, non-prefetchable) [size=4K]
        Bus: primary=04, secondary=05, subordinate=08, sec-latency=176
        Memory window 0: 50000000-53fff000 (prefetchable)
        Memory window 1: 58000000-5bfff000
        I/O window 0: 00005000-000050ff
        I/O window 1: 00005400-000054ff
        16-bit legacy interface ports at 0001

04:06.2 Mass storage controller [0180]: Texas Instruments 5-in-1
Multimedia Card Reader (SD/MMC/MS/MS PRO/xD) [104c:803b]
        Subsystem: Acer Incorporated [ALI] Unknown device [1025:0112]
        Flags: bus master, medium devsel, latency 64, IRQ 11
        Memory at c3012000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: <access denied>