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    SubjectRe: ACPI Error under 2.6.26-rc*
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    Date
    On Mon, 2008-07-14 at 16:09 +0800, Andre Prendel wrote:
    > On Fri, Jul 11, 2008 at 09:28:02AM +0800, Zhang Rui wrote:
    > > On Fri, 2008-07-11 at 09:20 +0800, Zhang Rui wrote:
    > > > On Fri, 2008-07-11 at 04:55 +0800, Rafael J. Wysocki wrote:
    > > > > [Adding CCs.]
    > > > >
    > > > > On Wednesday, 9 of July 2008, Andre Prendel wrote:
    > > > > > Hi,
    > > > > >
    > > > > > I have had some ACPI Problems working under the 2.6.26-rc's in
    > the
    > > > > last weeks.
    > > > > > Power off does not work well. "System halted" is the last
    > output,
    > > > > but power is
    > > > > > not switch off. The lastest stable kernel (2.6.25.10) works
    > fine for
    > > > > me. After
    > > > > > that I tried 2.6.26-rc1 and the error occurs. AFAIR I had
    > these
    > > > > problems with
    > > > > > all 2.6.26-rc's until 2.6.26-rc8-git4. I did not tested newer
    > ones.
    > > > > >
    > > > > > Dmesg output is attached.
    > > > > >
    > > > > > Andre
    > > > > >
    > > > > > ----------------------------------
    > > > > > [ 0.000000] Linux version 2.6.26-rc1 (andre@ubuntu) (gcc
    > version
    > > > > 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)) #8 SMP Tue
    > Jul 8
    > > > > 22:28:14 CEST 2008
    > > > > > [ 0.000000] BIOS-provided physical RAM map:
    > > > > > [ 0.000000] BIOS-e820: 0000000000000000 - 000000000009fc00
    > > > > (usable)
    > > > > > [ 0.000000] BIOS-e820: 000000000009fc00 - 00000000000a0000
    > > > > (reserved)
    > > > > > [ 0.000000] BIOS-e820: 00000000000f0000 - 0000000000100000
    > > > > (reserved)
    > > > > > [ 0.000000] BIOS-e820: 0000000000100000 - 000000001fff0000
    > > > > (usable)
    > > > > > [ 0.000000] BIOS-e820: 0000000021ff0000 - 0000000021ff8000
    > (ACPI
    > > > > data)
    > > > > > [ 0.000000] BIOS-e820: 0000000021ff8000 - 0000000022000000
    > (ACPI
    > > > > NVS)
    > > > > > [ 0.000000] BIOS-e820: 00000000fec00000 - 00000000fec01000
    > > > > (reserved)
    > > > > > [ 0.000000] BIOS-e820: 00000000fee00000 - 00000000fee01000
    > > > > (reserved)
    > > > > > [ 0.000000] BIOS-e820: 00000000ffee0000 - 00000000fff00000
    > > > > (reserved)
    > > > > > [ 0.000000] BIOS-e820: 00000000fffc0000 - 0000000100000000
    > > > > (reserved)
    > > > > > [ 0.000000] x86: PAT support disabled.
    > > > > > [ 0.000000] 511MB LOWMEM available.
    > > > > > [ 0.000000] Entering add_active_range(0, 0, 131056) 0
    > entries of
    > > > > 256 used
    > > > > > [ 0.000000] Zone PFN ranges:
    > > > > > [ 0.000000] DMA 0 -> 4096
    > > > > > [ 0.000000] Normal 4096 -> 131056
    > > > > > [ 0.000000] Movable zone start PFN for each node
    > > > > > [ 0.000000] early_node_map[1] active PFN ranges
    > > > > > [ 0.000000] 0: 0 -> 131056
    > > > > > [ 0.000000] On node 0 totalpages: 131056
    > > > > > [ 0.000000] DMA zone: 32 pages used for memmap
    > > > > > [ 0.000000] DMA zone: 0 pages reserved
    > > > > > [ 0.000000] DMA zone: 4064 pages, LIFO batch:0
    > > > > > [ 0.000000] Normal zone: 991 pages used for memmap
    > > > > > [ 0.000000] Normal zone: 125969 pages, LIFO batch:31
    > > > > > [ 0.000000] Movable zone: 0 pages used for memmap
    > > > > > [ 0.000000] DMI 2.3 present.
    > > > > > [ 0.000000] ACPI: RSDP 000FA340, 0014 (r0 AMI )
    > > > > > [ 0.000000] ACPI: 21FF0000, 0000 (r0
    > > > > 0 0)
    > > > > > [ 0.000000] ACPI Error (tbutils-0472): Invalid length 0x0
    > in
    > > > > RSDT/XSDT [20080321]
    > > >
    > > > Please attach the acpidump output using the latest pmtools at
    > > > http://www.lesswatts.org/patches/linux_acpi/
    > > >
    > > Please also attach the dmesg output of a working kernel.
    >
    > Hello Rui,
    >
    > that's quite strange. Booting the system to get an acpidump I have
    > looked at the dmesg output and there is no ACPI Error like the one
    > above. There is only an ACPI Exeption.
    >
    > [...]
    > Jul 13 22:00:18 ubuntu kernel: [ 0.104111] ACPI: Core revision
    > 20080321
    > Jul 13 22:00:18 ubuntu kernel: [ 0.104259] ACPI Exception
    > (tbxface-0629): AE_NO_ACPI_TABLES, While loading namespace from ACPI
    > tables [20080321]
    > [...]
    >
    > Booting again I found the error again
    >
    > [...]
    > Jul 13 22:10:50 ubuntu kernel: [ 0.000000] ACPI Error
    > (tbutils-0472): Invalid length 0x0 in RSDT/XSDT [20080321]
    > [...]
    >
    > and acpidump says:
    > root@ubuntu:/home/andre/src/acpi/pmtools-20071116/acpidump#
    > ./acpidumpACPI tables were not found. If you know location of RSD PTR
    > table (from dmesg, etc), supply it with either --addr or -a option
    >
    > Linux 2.6.25.10 always works.

    It seems that OS failed to get the correct RSDT address (0x1fff0000),
    although the RSDP is found correctly. (ACPI: RSDP 000FA340, 0014)

    please run "./acpidump --addr 0xFA340 --length 0x14 > rsdp_xxx",
    and attach the rsdp for all of the three cases (good, ACPI Error, ACPI
    Exception).

    thanks,
    rui

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