Re: Kernel eats memory with LG-81 motherboard , acpi_operand possible culprit?

[Alexey Starikovskiy <alexey_y_starikovskiy@linux.intel.com>]

Please open bug against AML interpreter (same category as 6514) and put
your original DSDT and dmesg there.

Thanks,
	Alex.

Roger Lucas wrote:
> Hi Alexey,
> 
> I've installed the latest 2.6.17.13 kernel (compiled from kernel.org source
> that I downloaded earlier today) and the "acpi_operand" field in
> "/proc/slabinfo" is still steadily rising.  After just 5 mins uptime, the
> acpi_operand field has ~4200 objects of 40 bytes each.  After 8 mins, this
> had rised on 4876 objects.
> 
> I am now going to try to patch the DSDT file into the kernel and see if that
> cures it.
> 
> Regards,
> 
> Roger
> 
>> -----Original Message-----
>> From: linux-acpi-owner@vger.kernel.org [mailto:linux-acpi-
>> owner@vger.kernel.org] On Behalf Of Alexey Starikovskiy
>> Sent: 15 September 2006 19:42
>> To: Roger Lucas
>> Cc: linux-acpi@vger.kernel.org; 'Suietov, Fiodor F'
>> Subject: Re: Kernel eats memory with LG-81 motherboard , acpi_operand
>> possible culprit?
>>
>> It is a leak mentioned by Fiodor -- bug #6514.
>> Roger Lucas wrote:
>>> Hi Alexey,
>>>
>>> Thanks for the quick responses - it looks like I either need to
>>> path+recompile the 2.6.16.20 kernel to allow a replacement DSDT file or
>> use
>>> the 2.6.17.13 kernel.
>>>
>>> Can you clarify exactly what memory leak you think is the problem?  I
>> don't
>>> mind trying the 2.6.17.x kernel, but I would like to know exactly what
>> the
>>> problem being resolved is.
>>>
>>> Thanks,
>>>
>>> Roger
>>>
>>>> -----Original Message-----
>>>> From: Alexey Starikovskiy
>> [mailto:alexey_y_starikovskiy@linux.intel.com]
>>>> Sent: 15 September 2006 16:52
>>>> To: Suietov, Fiodor F
>>>> Cc: Roger Lucas; linux-acpi@vger.kernel.org
>>>> Subject: Re: Kernel eats memory with LG-81 motherboard , acpi_operand
>>>> possible culprit?
>>>>
>>>> Roger,
>>>> Please try to upgrade to 2.6.17.x, as it probably contains a fix to
>> your
>>>> memory leak.
>>>>
>>>> Regards,
>>>> Alex.
>>>>
>>>> Suietov, Fiodor F wrote:
>>>>> Perhaps, it is related to #6514:
>>>>>
>>>>> http://bugzilla.kernel.org/show_bug.cgi?id=6514
>>>>>
>>>>> Thanks,
>>>>>  Fiodor
>>>>>
>>>>>> -----Original Message-----
>>>>>> From: linux-acpi-owner@vger.kernel.org [mailto:linux-acpi-
>>>>>> owner@vger.kernel.org] On Behalf Of Alexey Starikovskiy
>>>>>> Sent: Friday, September 15, 2006 6:41 PM
>>>>>> To: Roger Lucas
>>>>>> Cc: linux-acpi@vger.kernel.org
>>>>>> Subject: Re: Kernel eats memory with LG-81 motherboard , acpi_operand
>>>>>> possible culprit?
>>>>>>
>>>>>> Roger,
>>>>>>
>>>>>> Please try to change Store(Local0, Local0) to Store(Zero, Local0) and
>>>>>> check if you still have a leak...
>>>>>>
>>>>>> Thanks,
>>>>>> Alex.
>>>>>>
>>>>>> Roger Lucas wrote:
>>>>>>> Some more information...
>>>>>>>
>>>>>>> It seems that there are bugs in the DSDT information.  I followed
>>>>> the
>>>>>>> instructions on this link to analyse the DSDT table.
>>>>>>>
>>>>>>> http://gentoo-wiki.com/HOWTO_Fix_Common_ACPI_Problems
>>>>>>>
>>>>>>> When I recompiled it, the following errors occurred.  I have no idea
>>>>>> what
>>>>>>> these mean or if they are important, but I suspect that they are not
>>>>>> good.
>>>>>>> The BIOS ASL was originally compiled with the Microsoft compiler.
>>>>>>>
>>>>>>> root@hydra:~# iasl -tc dsdt.dsl
>>>>>>>
>>>>>>> Intel ACPI Component Architecture
>>>>>>> ASL Optimizing Compiler version 20051216 [Jan  9 2006]
>>>>>>> Copyright (C) 2000 - 2005 Intel Corporation
>>>>>>> Supports ACPI Specification Revision 3.0
>>>>>>>
>>>>>>> dsdt.dsl   361:     Method (\_WAK, 1, NotSerialized)
>>>>>>> Warning  2078 -                 ^ Reserved method must return a
>>>>> value
>>>>>> (_WAK)
>>>>>>> dsdt.dsl   394:             Store (Local0, Local0)
>>>>>>> Error    1048 -                         ^ Method local variable is
>>>>> not
>>>>>>> initialized (Local0)
>>>>>>>
>>>>>>> dsdt.dsl   399:             Store (Local0, Local0)
>>>>>>> Error    1048 -                         ^ Method local variable is
>>>>> not
>>>>>>> initialized (Local0)
>>>>>>>
>>>>>>> dsdt.dsl  5349:                 If (Or (PLCY, PLCY, Local7))
>>>>>>> Warning  2097 -                      ^ Statement is unreachable
>>>>>>>
>>>>>>> ASL Input:  dsdt.dsl - 5433 lines, 178284 bytes, 2002 keywords
>>>>>>> Compilation complete. 2 Errors, 2 Warnings, 0 Remarks, 537
>>>>> Optimizations
>>>>>>> root@hydra:~#
>>>>>> -
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