linux-acpi-2.6/test on Thinkpad T61: Battery Absent

linux-acpi-2.6/test on Thinkpad T61: Battery Absent

[Yves-Alexis Perez]

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Hi,

I just pulled linux-acpi-2.6/test on my git tree, and rebuild the
kernel, and now it doesn't detect any battery:

ACPI: Battery Slot [BAT0] (battery absent)

My tree is at faca89759dd7d4d87309f56cd09ae885a296fb4c and I'll try to
bisect.

Cheers,
-- 
Yves-Alexis

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Re: linux-acpi-2.6/test on Thinkpad T61: Battery Absent

[Zhao Yakui]

On Wed, 2008-09-10 at 08:22 +0200, Yves-Alexis Perez wrote:
> Hi,
> 
> I just pulled linux-acpi-2.6/test on my git tree, and rebuild the
> kernel, and now it doesn't detect any battery:
> 
> ACPI: Battery Slot [BAT0] (battery absent)
> 
> My tree is at faca89759dd7d4d87309f56cd09ae885a296fb4c and I'll try to
> bisect.
Can the battery be detected on the upstream kernel of 2.6.27-rc6? 
Please attach the output of acpidump, lspci -vxxx and dmesg.(Both dmesg
on acpi_test git tree and 2.6.27-rc6 are needed).
Thanks.
> 
> Cheers,

Re: linux-acpi-2.6/test on Thinkpad T61: Battery Absent

[Yves-Alexis Perez]

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Ok, it seems my mail didn't reach the list. In case it was because of
attachments, I resend it.

On mer, 2008-09-10 at 17:22 +0800, Zhao Yakui wrote:
> Can the battery be detected on the upstream kernel of 2.6.27-rc6? 

Yes.

> Please attach the output of acpidump, lspci -vxxx and dmesg.(Both dmesg
> on acpi_test git tree and 2.6.27-rc6 are needed).

Ok, files are there: http://molly.corsac.net/~corsac/acpi/

Thanks for any help.
-- 
Yves-Alexis

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Re: linux-acpi-2.6/test on Thinkpad T61: Battery Absent

[Yves-Alexis Perez]

On mer, 2008-09-10 at 08:22 +0200, Yves-Alexis Perez wrote:
> My tree is at faca89759dd7d4d87309f56cd09ae885a296fb4c and I'll try to
> bisect.

Ok, playing with git bisect, it seems the offending commit is:

50c0f43ff1199bbea5f0418d40df32f4d4029b13 is first bad commit
commit 50c0f43ff1199bbea5f0418d40df32f4d4029b13
Author: Andi Kleen <ak@linux.intel.com>
Date:   Thu Sep 4 15:13:29 2008 +0200

    ACPI: EC: do transaction from interrupt context
    
    From: Alexey Starikovskiy <astarikovskiy@suse.de>
    
    It is easier and faster to do transaction directly from interrupt
context
    rather than waking control thread.
    Also, cleaner GPE storm avoidance is implemented.
    
    AK: Merged with earlier io port patch
    
    Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
    Signed-off-by: Andi Kleen <ak@linux.intel.com>

:040000 040000 5b8664bf958e6455709348a1a52a14a92dd3119c
7d8ecce115fec5dd1e808fc345b8724def2ad606 M      drivers

Not sure exactly what the problem is, though.

Cheers,
-- 
Yves-Alexis