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SubjectRE: Warning: pnp 00:0b: can't evaluate _CRS: 12311
Date
This disassembly might make more sense. From the looks of the ASL, several of the address base and length fields are being updated dynamically.  I don't see anything that would corrupt a resource descriptor, however.


Are we certain that the ACPI Error and pnp messages are directly related to the PNP0C02 device ID?

[ 0.293699] system 00:0a: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 0.294032] ACPI Error: Invalid/unsupported resource descriptor: Type 0x00 (20120320/utresrc-650)
[ 0.294037] pnp 00:0b: can't evaluate _CRS: 12311


Also, I was able to execute all of the _CRS methods in the DSDT here with no errors, except for the last one, under the MEM2 device. IGDS returned zero, so the method did not return a valid resource descriptor, just nothing:

Device: \_SB_.MEM2
Evaluating _CRS
ACPI Warning: For \_SB_.MEM2._CRS: Missing expected return value (20120420/nspredef-283)
ACPI Error: No object was returned from [\_SB_.MEM2._CRS] (Node 004B62A8), AE_NOT_EXIST (20120420/uteval-198)
AcpiWalkResources failed: AE_NOT_EXIST

Device (^^MEM2)
{
Name (_HID, EisaId ("PNP0C01"))
Name (_UID, 0x02)
Name (CRS, ResourceTemplate ()
{
Memory32Fixed (ReadWrite,
0x20000000, // Address Base
0x00200000, // Address Length
)
Memory32Fixed (ReadWrite,
0x40000000, // Address Base
0x00200000, // Address Length
)
})
Method (_CRS, 0, NotSerialized)
{
If (IGDS)
{
Return (CRS)
}
}



/*
* Intel ACPI Component Architecture
* AML Disassembler version 20120420-32 [Apr 20 2012]
* Copyright (c) 2000 - 2012 Intel Corporation
*
* Disassembly of dsdt.dat, Wed Apr 25 11:49:16 2012
*/

Name (BUF0, ResourceTemplate ()
{
Memory32Fixed (ReadWrite,
0x00000000, // Address Base
0x00004000, // Address Length
_Y10)
Memory32Fixed (ReadWrite,
0x00000000, // Address Base
0x00008000, // Address Length
_Y12)
Memory32Fixed (ReadWrite,
0x00000000, // Address Base
0x00001000, // Address Length
_Y13)
Memory32Fixed (ReadWrite,
0x00000000, // Address Base
0x00001000, // Address Length
_Y14)
Memory32Fixed (ReadWrite,
0x00000000, // Address Base
0x00000000, // Address Length
_Y15)
Memory32Fixed (ReadWrite,
0xFED20000, // Address Base
0x00020000, // Address Length
)
Memory32Fixed (ReadOnly,
0xFED90000, // Address Base
0x00004000, // Address Length
)
Memory32Fixed (ReadWrite,
0xFED45000, // Address Base
0x0004B000, // Address Length
)
Memory32Fixed (ReadOnly,
0xFF000000, // Address Base
0x01000000, // Address Length
)
Memory32Fixed (ReadOnly,
0xFEE00000, // Address Base
0x00100000, // Address Length
)
Memory32Fixed (ReadWrite,
0x00000000, // Address Base
0x00001000, // Address Length
_Y11)
})
Method (_CRS, 0, Serialized)
{
CreateDWordField (BUF0, \_SB.PCI0.PDRC._Y10._BAS, RBR0)
ShiftLeft (^^LPCB.RCBA, 0x0E, RBR0)
CreateDWordField (BUF0, \_SB.PCI0.PDRC._Y11._BAS, TBR0)
Store (TBAB, TBR0)
CreateDWordField (BUF0, \_SB.PCI0.PDRC._Y11._LEN, TBLN)
If (LEqual (TBAB, Zero))
{
Store (Zero, TBLN)
}

CreateDWordField (BUF0, \_SB.PCI0.PDRC._Y12._BAS, MBR0)
ShiftLeft (MHBR, 0x0F, MBR0)
CreateDWordField (BUF0, \_SB.PCI0.PDRC._Y13._BAS, DBR0)
ShiftLeft (DIBR, 0x0C, DBR0)
CreateDWordField (BUF0, \_SB.PCI0.PDRC._Y14._BAS, EBR0)
ShiftLeft (EPBR, 0x0C, EBR0)
CreateDWordField (BUF0, \_SB.PCI0.PDRC._Y15._BAS, XBR0)
ShiftLeft (PXBR, 0x1A, XBR0)
CreateDWordField (BUF0, \_SB.PCI0.PDRC._Y15._LEN, XSZ0)
ShiftRight (0x10000000, PXSZ, XSZ0)
Return (BUF0)
}
}


> -----Original Message-----
> From: Bjorn Helgaas [mailto:bhelgaas@google.com]
> Sent: Wednesday, April 25, 2012 1:51 PM
> To: Moore, Robert
> Cc: sedat.dilek@gmail.com; linux-acpi@vger.kernel.org; Len Brown;
> linux-kernel@vger.kernel.org; Lin, Ming M
> Subject: Re: Warning: pnp 00:0b: can't evaluate _CRS: 12311
>
> On Wed, Apr 25, 2012 at 2:36 PM, Moore, Robert <robert.moore@intel.com>
> wrote:
> >> >>> [    0.294037] pnp 00:0b: can't evaluate _CRS: 12311
> >
> > It sure would be nice if this error message would include the full
> pathname to the _CRS method. As it stands, it is rather difficult to
> determine just what caused this.
>
> Agreed.
>
> I extracted and disassembled the acpidump. There were five occurrences
> of PNP0C02:
>
> DSDT.dsl \_SB.PCI0.LPCB.LDRC (has a constant _CRS) DSDT.dsl
> \_SB.PCI0.LPCB.CWDT (has _HID INT3F0D and _CID PNP0C02, so doesn't
> match message) DSDT.dsl \_SB.PCI0.PDRC SSDT1.dsl \_SB.PTID (has no
> _CRS and has _HID INT340E and _CID PNP0C02, so doesn't match message)
> SSDT4.dsl \_SB.IFFS (has no _CRS)
>
> So I think PDRC must be the one causing the trouble. Its _CRS runs
> some AML, but I'm not AML-savvy enough to figure it out:
>
> Scope (_SB.PCI0)
> {
> Device (PDRC)
> {
> Name (_HID, EisaId ("PNP0C02"))
> Name (_UID, One)
> Name (BUF0, ResourceTemplate ()
> {
> Memory32Fixed (ReadWrite,
> 0x00000000, // Address Base
> 0x00004000, // Address Length
> )
> Memory32Fixed (ReadWrite,
> 0x00000000, // Address Base
> 0x00008000, // Address Length
> )
> Memory32Fixed (ReadWrite,
> 0x00000000, // Address Base
> 0x00001000, // Address Length
> )
> Memory32Fixed (ReadWrite,
> 0x00000000, // Address Base
> 0x00001000, // Address Length
> )
> Memory32Fixed (ReadWrite,
> 0x00000000, // Address Base
> 0x00000000, // Address Length
> )
> Memory32Fixed (ReadWrite,
> 0xFED20000, // Address Base
> 0x00020000, // Address Length
> )
> Memory32Fixed (ReadOnly,
> 0xFED90000, // Address Base
> 0x00004000, // Address Length
> )
> Memory32Fixed (ReadWrite,
> 0xFED45000, // Address Base
> 0x0004B000, // Address Length
> )
> Memory32Fixed (ReadOnly,
> 0xFF000000, // Address Base
> 0x01000000, // Address Length
> )
> Memory32Fixed (ReadOnly,
> 0xFEE00000, // Address Base
> 0x00100000, // Address Length
> )
> Memory32Fixed (ReadWrite,
> 0x00000000, // Address Base
> 0x00001000, // Address Length
> )
> })
> Method (_CRS, 0, Serialized)
> {
> CreateDWordField (BUF0, 0x04, RBR0)
> ShiftLeft (^^LPCB.RCBA, 0x0E, RBR0)
> CreateDWordField (BUF0, 0x7C, TBR0)
> Store (TBAB, TBR0)
> CreateDWordField (BUF0, 0x80, TBLN)
> If (LEqual (TBAB, Zero))
> {
> Store (Zero, TBLN)
> }
>
> CreateDWordField (BUF0, 0x10, MBR0)
> ShiftLeft (MHBR, 0x0F, MBR0)
> CreateDWordField (BUF0, 0x1C, DBR0)
> ShiftLeft (DIBR, 0x0C, DBR0)
> CreateDWordField (BUF0, 0x28, EBR0)
> ShiftLeft (EPBR, 0x0C, EBR0)
> CreateDWordField (BUF0, 0x34, XBR0)
> ShiftLeft (PXBR, 0x1A, XBR0)
> CreateDWordField (BUF0, 0x38, XSZ0)
> ShiftRight (0x10000000, PXSZ, XSZ0)
> Return (BUF0)
> }
> }
> }
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