Re: [PATCH 04/50] ACPICA: Fix to allow region arguments to reference other scopes

ACPI & Power Management Patches for 3.3 · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 02/50] ACPICA: Put back the call to acpi_os_validate_address · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 01/50] tools turbostat: recognize and run properly on IVB · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 09/50] ACPI 5.0: Implement hardware-reduced option · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 04/50] ACPICA: Fix to allow region arguments to reference other scopes · Len Brown <lenb@kernel.org> · 2012-01-17
Re: [PATCH 04/50] ACPICA: Fix to allow region arguments to reference other scopes · Jonathan Nieder <hidden> · 2012-03-01
[PATCH 13/50] ACPI 5.0: Support for GeneralPurposeIo and GenericSerialBus operation region · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 27/50] ACPI, APEI, Print resource errors in conventional format · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 30/50] ACPI, APEI, Printk queued error record before panic · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 34/50] ACPI, Record ACPI NVS regions · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 40/50] ACPI: Export interfaces for ioremapping/iounmapping ACPI registers · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 28/50] ACPI, APEI, Remove table not found message · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 49/50] intel idle: Make idle driver more robust · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 50/50] ACPI processor: Fix error path, also remove sysdev link · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 48/50] intel_idle: Fix a cast to pointer from integer of different size warning in intel_idle · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 24/50] ACPICA: Update to version 20120111 · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 41/50] ACPI APEI: Convert atomicio routines · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 45/50] intel_idle: remove redundant local_irq_disable() call · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 31/50] ACPI, Add RAM mapping support to ACPI atomic IO support · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 22/50] ACPICA: Add support for region address conflict checking · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 15/50] ACPI 5.0: New interface, acpi_get_event_resources · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 46/50] ACPI: kernel-parameters.txt : Add intel_idle.max_cstate · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 35/50] ACPI, APEI, Resolve false conflict between ACPI NVS and APEI · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 38/50] ACPI, ia64: Use SRAT table rev to use 8bit or 16/32bit PXM fields (ia64) · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 39/50] ACPI: Fix possible alignment issues with GAS 'address' references · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 36/50] ACPI: Store SRAT table revision · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 32/50] ACPI, APEI, EINJ, Fix resource conflict on some machine · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 14/50] ACPI 5.0: Support for all new resource descriptors · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 26/50] ACPI, APEI, GHES: Add PCIe AER recovery support · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 18/50] ACPI 5.0: Allow _AEI method in walk resources · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 06/50] ACPICA: Add error msg for Index/Bank field registers out-of-range · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 20/50] ACPICA: Update to version 20111123 · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 05/50] ACPICA: Add error msg for unsupported I/O requests (not 8/16/32 bit length) · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 03/50] ACPICA: Update for GCC 4 · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 19/50] ACPICA: Clean up Makefile · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 16/50] ACPI 5.0: New interface, acpi_buffer_to_resource · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 08/50] ACPI 5.0: Basic support for FADT version 5 · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 29/50] ACPI, APEI, GHES, Distinguish interleaved error report in kernel log · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 11/50] ACPI 5.0: New interfaces to allow driver access to AML mutex objects · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 10/50] ACPI 5.0: Add new/changed tables to headers · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 17/50] ACPI 5.0: Add new predefined names · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 43/50] intel_idle: fix API misuse · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 33/50] ACPI, APEI, EINJ, Refine the fix of resource conflict · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 44/50] intel_idle: disable auto_demotion for hotplugged CPUs · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 47/50] ACPI: processor: fix acpi_get_cpuid for UP processor · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 25/50] ACPI, Add 64bit read/write support to atomicio on i386 · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 23/50] ACPICA: Update all copyrights to 2012 · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 42/50] acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 37/50] ACPI, x86: Use SRAT table rev to use 8bit or 32bit PXM fields (x86/x86-64) · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 21/50] ACPICA: Update for larger ACPI 5 FADT size · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 07/50] ACPICA: Do not abort table load on invalid space ID · Len Brown <lenb@kernel.org> · 2012-01-17
[PATCH 12/50] ACPI 5.0: Implement Connection() and AccessAs() changes · Len Brown <lenb@kernel.org> · 2012-01-17

From: Jonathan Nieder <hidden>
Date: 2012-03-01 15:28:07
Also in: linux-acpi, lkml

Hi,

Len Brown wrote[1]:

From: Lin Ming <redacted>

[...]

http://www.acpica.org/bugzilla/show_bug.cgi?id=937
http://marc.info/?l=linux-acpi&m=131636632718222&w=2

ACPI Error: [RAMB] Namespace lookup failure, AE_NOT_FOUND (20110112/psargs-359)
ACPI Exception: AE_NOT_FOUND, Could not execute arguments for [RAMW] (Region) (20110112/nsinit-349)

    Scope (_SB)
    {
        Name (RAMB, 0xDF5A1018)
        OperationRegion (\RAMW, SystemMemory, RAMB, 0x00010000)
    }

For above ASL code, we need to save scope node(\_SB) to lookup
the argument node(\_SB.RAMB).

Reported-by: Jim Green <redacted>
Signed-off-by: Lin Ming <redacted>
Signed-off-by: Bob Moore <redacted>
Signed-off-by: Len Brown <redacted>

Arne Nordmark reports[2] that this patch, when applied to 3.2.5, fixes
a resume failure.  Thanks!

Would it be safe and useful to backport this fix to stable/longterm
kernels?  If so, which ones?

Jonathan

[1] commit 8931d9ea7884
[2] http://bugs.debian.org/661581

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