Bug 25992 - ACPI Error: Field [CMDX] at 224 exceeds Buffer [SCBF] size 168 (bits) (20101013/dsopcode-597)
Summary: ACPI Error: Field [CMDX] at 224 exceeds Buffer [SCBF] size 168 (bits) (201010...
Status: CLOSED DOCUMENTED
Alias: None
Product: ACPI
Classification: Unclassified
Component: BIOS (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: acpi_bios
URL:
Keywords:
: 28392 (view as bug list)
Depends on:
Blocks:
 
Reported: 2010-12-31 14:59 UTC by Cristian Aravena Romero
Modified: 2011-03-03 01:26 UTC (History)
2 users (show)

See Also:
Kernel Version: 2.6.37-rc8
Subsystem:
Regression: No
Bisected commit-id:

Attachments
dmesg 2.6.37-rc8 (66.43 KB, text/plain)
2010-12-31 14:59 UTC, Cristian Aravena Romero 		Details
acpidump.log (156.51 KB, text/plain)
2010-12-31 15:03 UTC, Cristian Aravena Romero 		Details
lspci-vvnn_2.6.37-020637rc8-generic (28.46 KB, text/plain)
2010-12-31 15:05 UTC, Cristian Aravena Romero 		Details
dmidecode (5.07 KB, text/plain)
2010-12-31 15:22 UTC, Cristian Aravena Romero 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Cristian Aravena Romero 2010-12-31 14:59:59 UTC 
Created attachment 42012 [details]
dmesg 2.6.37-rc8

[49361.562414] ACPI Error: Field [CMDX] at 224 exceeds Buffer [SCBF] size 168 (bits) (20101013/dsopcode-597)
[49361.562419] ACPI Error: Method parse/execution failed [\_SB_.PCI0.SATA.GTFB] (Node ffff8800b08626b8), AE_AML_BUFFER_LIMIT (20101013/psparse-537)
[49361.562428] ACPI Error: Method parse/execution failed [\_SB_.PCI0.SATA.SPT0._SDD] (Node ffff8800b0862578), AE_AML_BUFFER_LIMIT (20101013/psparse-537)
Comment 1 Cristian Aravena Romero 2010-12-31 15:03:35 UTC 
Created attachment 42022 [details]
acpidump.log
Comment 2 Cristian Aravena Romero 2010-12-31 15:05:20 UTC 
Created attachment 42032 [details]
lspci-vvnn_2.6.37-020637rc8-generic
Comment 3 Cristian Aravena Romero 2010-12-31 15:22:56 UTC 
Created attachment 42042 [details]
dmidecode
Comment 4 Zhang Rui 2011-01-04 01:49:43 UTC 
this is caused by the buggy AML/BIOS code.

        Method (GTFB, 2, Serialized)
        {
            Multiply (CMDC, 0x38, Local0)
            CreateField (SCBF, Local0, 0x38, CMDX)
            Multiply (CMDC, 0x07, Local0)
            CreateByteField (SCBF, Add (Local0, 0x01), A001)
            Store (Arg0, CMDX)
            Store (Arg1, A001)
            Increment (CMDC)
        }
GTFB is invoked in the _SDD method. and CMDC is increased every time _SDD is invoked. This is apparently wrong, because _SDD may be invoked for many times, which means that the error message in comment #0 may occur sooner or later.

You can use boot option "libata.noacpi" to workaround this problem.
Comment 5 Cristian Aravena Romero 2011-02-06 17:45:56 UTC 
*** Bug 28392 has been marked as a duplicate of this bug. ***
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