On Wed, Jan 27, 2010 at 3:04 AM, Lin Ming <ming.m.lin@xxxxxxxxx> wrote: > >> From: Miles Lane <miles.lane@xxxxxxxxx> >> 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@xxxxxxxxxxxxxxx>, LKML >> <linux-kernel@xxxxxxxxxxxxxxx>, Len Brown <lenb@xxxxxxxxxx> >> >> >> 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. This is the current BIOS for the ASUS UL50VT. Is this something that gets fixed by a BIOS update? Do you have a way to pass this information on to ASUS? Is there something the kernel code can do to work around the problem, or is that already happening? Thanks, Miles -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html