Commit 36eec5e2 authored by Thomas Renninger's avatar Thomas Renninger Committed by Len Brown
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ACPI: Add expand acpi.debug_layer in kernel-parameters.txt



Signed-off-by: default avatarThomas Renninger <trenn@suse.de>
Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 3fa8749e
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+33 −14
Original line number Diff line number Diff line
@@ -217,17 +217,36 @@ and is between 256 and 4096 characters. It is defined in the file
	acpi.debug_level=	[HW,ACPI]
			Format: <int>
			Each bit of the <int> indicates an ACPI debug level,
			1: enable, 0: disable. It is useful for boot time
			debugging. After system has booted up, it can be set
			via /sys/module/acpi/parameters/debug_level.
			CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
			Available bits (add the numbers together) to enable different
			debug output levels of the ACPI subsystem:
			0x01 error 0x02 warn 0x04 init 0x08 debug object
			0x10 info 0x20 init names 0x40 parse 0x80 load
			0x100 dispatch 0x200 execute 0x400 names 0x800 operation region
			0x1000 bfield 0x2000 tables 0x4000 values 0x8000 objects
			0x10000 resources 0x20000 user requests 0x40000 package.
			which corresponds to the level in an ACPI_DEBUG_PRINT
			statement.  After system has booted up, this mask
			can be set via /sys/module/acpi/parameters/debug_level.

			CONFIG_ACPI_DEBUG must be enabled for this to produce
			any output.  The number can be in decimal or prefixed
			with 0x in hex.  Some of these options produce so much
			output that the system is unusable.

			The following global components are defined by the
			ACPI CA:
			       0x01 error
			       0x02 warn
			       0x04 init
			       0x08 debug object
			       0x10 info
			       0x20 init names
			       0x40 parse
			       0x80 load
			      0x100 dispatch
			      0x200 execute
			      0x400 names
			      0x800 operation region
			     0x1000 bfield
			     0x2000 tables
			     0x4000 values
			     0x8000 objects
			    0x10000 resources
			    0x20000 user requests
			    0x40000 package
 			The number can be in decimal or prefixed with 0x in hex.
 			Warning: Many of these options can produce a lot of
 			output and make your system unusable. Be very careful.