linux-kernel - Re: acpi_ex_system_memory_space

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Date:	Mon, 17 Aug 2009 14:30:59 +0300
From:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:	Lin Ming <ming.m.lin@...el.com>
Cc:	"Brown, Len" <len.brown@...el.com>,
	"Moore, Robert" <robert.moore@...el.com>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: acpi_ex_system_memory_space_handler oops

On (08/17/09 16:43), Lin Ming wrote:
> On Thu, 2009-08-13 at 04:10 +0800, Sergey Senozhatsky wrote:
> > [    0.205668] ACPI Error (dswload-0790): [PCFG] Namespace lookup failure, AE_ALREADY_EXISTS
> > [    0.205899] ACPI Exception: AE_ALREADY_EXISTS, During name lookup/catalog 20090521 psloop-227
> > [    0.206124] ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.RBPE] (Node f7017678), AE_ALREADY_EXISTS
> > [    0.206417] ACPI: Marking method RBPE as Serialized because of AE_ALREADY_EXISTS error
> > [    0.206773] ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.P0P4.XCRD._STA] (Node f7015648), AE_ALREADY_EXISTS
> > [    0.207070] ACPI: Marking method _STA as Serialized because of AE_ALREADY_EXISTS error
> > [    0.207326] ACPI Error (uteval-0256): Method execution failed [\_SB_.PCI0.P0P4.XCRD._STA] (Node f7015648), AE_ALREADY_EXISTS
> > [    0.213503] ACPI Error: Could not map memory at 0000000000000000, size 0 20090521 exregion-173
> > [    0.213734] ACPI Exception: AE_NO_MEMORY, Returned by Handler for [SystemMemory] 20090521 evregion-424
> > [    0.213963] ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.RBPE] (Node f7017678), AE_NO_MEMORY
> > [    0.214286] ACPI Error (psparse-0537): Method parse/execution failed [\_GPE._L01] (Node f701d198), AE_NO_MEMORY
> > [    0.214616] ACPI Exception: AE_NO_MEMORY, while evaluating GPE method [_L01] 20090521 evgpe-568
> > [    0.216428] PCI: MCFG area at e0000000 reserved in ACPI motherboard resources
> > [    0.216523] PCI: updated MCFG configuration 0: base e0000000 segment 0 buses 0 - 63
> > [    0.216627] PCI: Using MMCONFIG for extended config space
> 
> Hi, Sergey
>
Hi, Lin
 
> 2. Debug kernel patch
> 
> Currently, we exit the interpreter when setup region, because it may
> execute control methods, such as _REG.
> 
> The attached debug kernel patch (region-debug.patch) don't exit the
> interpreter if the region is temporary, namely, it is defined inside a
> method.
> 

rc6-git2
25 successful reboots.

I'll need some more time to test against rc5.

/*should I also test DSDT in case region-debug.patch fixed the problem?*/

	Sergey

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