ACPI Errors, battery info is lost.

ACPI Errors, battery info is lost.

[Alejandro Bonilla Beeche]

Hi,

    I have an IBM T42 Debian Sid, with latest BIOS and correct options 
(had old BIOS before and still same problem) Sometimes, when I'm running 
on Battery power, I get this problem, it might also occur when charging 
the battery.

I had opened a bug about it in bugzilla, but I never got an answer. I 
provided the acpidump and so on.

This so far with 2.6.13 and 2.6.14 dunno if also with older kernels.

Nov  1 19:27:12 localhost kernel:     ACPI-0292: *** Error: Looking up 
[SERN] in namespace, AE_ALREADY_EXISTS
Nov  1 19:27:12 localhost kernel:     ACPI-0508: *** Error: Method 
execution failed [\_SB_.PCI0.LPC_.EC__.GBIF] (Node c14cd600), 
AE_ALREADY_EXISTS
Nov  1 19:27:14 localhost kernel:     ACPI-0213: *** Error: Method 
reached maximum reentrancy limit (255)
Nov  1 19:27:14 localhost kernel:     ACPI-0508: *** Error: Method 
execution failed [\_SB_.PCI0.LPC_.EC__.BAT0._BIF] (Node c14cd4c0), 
AE_AML_METHOD_LIMIT
Nov  1 19:27:16 localhost kernel:     ACPI-0213: *** Error: Method 
reached maximum reentrancy limit (255)


.Alejandro


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Re: ACPI Errors, battery info is lost.

[Luca Capello]

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Hello!

On Wed 02 Nov 2005 04:51 +0100, Alejandro Bonilla Beeche wrote:
>    I have an IBM T42 Debian Sid, with latest BIOS and correct
> options (had old BIOS before and still same problem) Sometimes, when
> I'm running on Battery power, I get this problem, it might also
> occur when charging the battery.

I've a T42p, Debian sid upgraded every morning, probably the latest
BIOS (I mean, it was about a month since my last check) and I've never
experienced your problem (I'm quite a lot on battery).

Thx, bye,
Gismo / Luca

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Re: ACPI Errors, battery info is lost.

[Nir Tzachar]

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hi.

i also encounter this problem after upgrading to 2.6.14 
im using gentoo on a thinkpad t43p.
the problem comes from the acpi parser (as far as i can tell, im not
familiar with the acpi code). the problematic method seems like
acpi_ds_begin_method_execution in
drivers/acpi/dispatcher/dsmethod.c .

it seems though that the semaphore being taken in this function is not
released after the bug is hit.

if you need more info, do tell. id really like to track down this bug.

my dmesg looks like this:
Nov  2 12:03:56 lapnir ACPI-0213: *** Error: Method reached maximum
reentrancy limit (255)
Nov  2 12:03:56 lapnir ACPI-0508: *** Error: Method execution failed
[\_SB_.PCI0.LPC_.EC__.BAT0._BIF] (Node c1849360), AE_AML_METHOD_LIMIT
Nov  2 12:03:58 lapnir ACPI-0213: *** Error: Method reached maximum
reentrancy limit (255)
Nov  2 12:03:58 lapnir ACPI-0508: *** Error: Method execution failed
[\_SB_.PCI0.LPC_.EC__.BAT0._BIF] (Node c1849360), AE_AML_METHOD_LIMIT
Nov  2 12:04:00 lapnir ACPI-0213: *** Error: Method reached maximum
reentrancy limit (255)
Nov  2 12:04:00 lapnir ACPI-0508: *** Error: Method execution failed
[\_SB_.PCI0.LPC_.EC__.BAT0._BIF] (Node c1849360), AE_AML_METHOD_LIMIT
-- 
=========================================================
Nir Tzachar.

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