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SubjectRe: 2.6.33-rc5-git2 -- ACPI Error: Attempt to CreateField of length zero (20091214/dsopcode-529)
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> From: Miles Lane <miles.lane@gmail.com>
> Date: Wed, Jan 27, 2010 at 2:54 PM
> Subject: 2.6.33-rc5-git2 -- ACPI Error: Attempt to CreateField of
> length zero (20091214/dsopcode-529)
> To: ACPI Devel Maling List <linux-acpi@vger.kernel.org>, LKML
> <linux-kernel@vger.kernel.org>, Len Brown <lenb@kernel.org>
>
>
> I am not sure how much of this is due to a single cause. Please let
> me know if you'd like me to send separate reports.
>
> ACPI: EC: GPE = 0x1b, I/O: command/status = 0x66, data = 0x62
> ACPI Warning: Incorrect checksum in table [ATKG] - FA, should be 05
> (20091214/tbutils-314)
>
> ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> ACPI Error: Attempt to CreateField of length zero (20091214/dsopcode-529)
> ACPI Error (psparse-0537): Method parse/execution failed
> [\_SB_.PCI0.IDE0.RATA] (Node ffff88013f81a9e0), AE_AML_OPERAND_VALUE
> ACPI Error (psparse-0537): Method parse/execution failed
> [\_SB_.PCI0.IDE0.PRT1._GTF] (Node ffff88013f81ab20),
> AE_AML_OPERAND_VALUE
> ata2.00: _GTF evaluation failed (AE 0x3004)
> ata2.00: ATAPI: MATSHITADVD-RAM UJ892AS, 1.00, max UDMA/100, ATAPI AN
> ACPI Error: Attempt to CreateField of length zero (20091214/dsopcode-529)
> ACPI Error (psparse-0537): Method parse/execution failed
> [\_SB_.PCI0.IDE0.RATA] (Node ffff88013f81a9e0), AE_AML_OPERAND_VALUE
> ACPI Error (psparse-0537): Method parse/execution failed
> [\_SB_.PCI0.IDE0.PRT1._GTF] (Node ffff88013f81ab20),
> AE_AML_OPERAND_VALUE
> ata2.00: _GTF evaluation failed (AE 0x3004)
> ata2.00: configured for UDMA/100
> scsi 1:0:0:0: CD-ROM MATSHITA DVD-RAM UJ892AS 1.00 PQ: 0 ANSI: 5
>

>From the DSDT,

2522 Method (RATA, 1, NotSerialized)
2523 {
2524 CreateByteField (Arg0, Zero, CMDN)
2525 Multiply (CMDN, 0x38, Local0)
2526 CreateField (Arg0, 0x08, Local0, RETB)
2527 Store (RETB, Debug)
2528 Return (RETB)
2529 }

2546 Name (ATP1, Buffer (0x32) {})
2547 Device (PRT1)
2548 {
2549 Name (_ADR, 0x0001FFFF)
2550 Method (_SDD, 1, NotSerialized)
2551 {
2552 Store (AGTF (Zero, Arg0), ATP1)
2553 }
2554
2555 Method (_GTF, 0, NotSerialized)
2556 {
2557 Return (RATA (ATP1))
2558 }
2559 }

It seems that ATP1 is not set correctly in PRT1._SDD.
Then ATP1 is passed into RATA and CMDN is created with value zero.
That causes the error message.

Lin Ming



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