Re: ACPI Error under 2.6.26-rc*

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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