linux-kernel - Re: 2.6.19-rc5 nasty ACPI regression, AE

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Date:	Sat, 18 Nov 2006 19:18:23 +0300
From:	Alexey Starikovskiy <alexey.y.starikovskiy@...ux.intel.com>
To:	David Brownell <david-b@...bell.net>
CC:	Len Brown <lenb@...nel.org>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	linux-acpi@...r.kernel.org
Subject: Re: 2.6.19-rc5 nasty ACPI regression, AE_TIME errors

Please take a look at 7466, they seem to fight same problem, so may be 
removing same patch will work...
And Linus is about to drop it anyway...
Regards,
    Alex.
David Brownell wrote:
> On Thursday 16 November 2006 10:22 pm, David Brownell wrote:
>   
>> On Thursday 16 November 2006 7:41 am, Alexey Starikovskiy wrote:
>>     
>>> --- a/drivers/acpi/ec.c
>>> +++ b/drivers/acpi/ec.c
>>> @@ -467,8 +467,8 @@ static u32 acpi_ec_gpe_handler(void *dat
>>>                 status = acpi_os_execute(OSL_EC_BURST_HANDLER, acpi_ec_gpe_query, ec);
>>>         }
>>>         acpi_enable_gpe(NULL, ec->gpe_bit, ACPI_ISR);
>>> -       return status == AE_OK ?
>>> -           ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED;
>>> +       WARN_ON(ACPI_FAILURE(status));
>>> +       return ACPI_INTERRUPT_HANDLED;
>>>  }
>>>  
>>>       
>> Strange ... applying this on top of the previous patch seems to work
>> much better, but that WARN_ON hasn't triggered.  At least, not yet.
>> Updating to RC6, with your two patches installed...
>>     
>
> ACPI Exception (evregion-0424): AE_TIME, Returned by Handler for [EmbeddedControl] [20060707]
> ACPI Exception (dswexec-0458): AE_TIME, While resolving operands for [OpcodeName unavailable] [2006070
> 7]
> ACPI Error (psparse-0537): Method parse/execution failed [\_TZ_.THRM._TMP] (Node ffff810002032d10), AE
> _TIME
>
> OK, I don't get the WARN_ON when these happen, so it's got to be one of the
> other EC updates.
>
> It'd be nice if this were easily reproducible ...
>
> - Dave
>
> -
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