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-rw-r--r--Documentation/kernel-parameters.txt11
1 files changed, 7 insertions, 4 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e0f346d201ed..c9115c1b672c 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -220,14 +220,17 @@ and is between 256 and 4096 characters. It is defined in the file
220 Bits in debug_level correspond to a level in 220 Bits in debug_level correspond to a level in
221 ACPI_DEBUG_PRINT statements, e.g., 221 ACPI_DEBUG_PRINT statements, e.g.,
222 ACPI_DEBUG_PRINT((ACPI_DB_INFO, ... 222 ACPI_DEBUG_PRINT((ACPI_DB_INFO, ...
223 See Documentation/acpi/debug.txt for more information 223 The debug_level mask defaults to "info". See
224 about debug layers and levels. 224 Documentation/acpi/debug.txt for more information about
225 debug layers and levels.
225 226
227 Enable processor driver info messages:
228 acpi.debug_layer=0x20000000
229 Enable PCI/PCI interrupt routing info messages:
230 acpi.debug_layer=0x400000
226 Enable AML "Debug" output, i.e., stores to the Debug 231 Enable AML "Debug" output, i.e., stores to the Debug
227 object while interpreting AML: 232 object while interpreting AML:
228 acpi.debug_layer=0xffffffff acpi.debug_level=0x2 233 acpi.debug_layer=0xffffffff acpi.debug_level=0x2
229 Enable PCI/PCI interrupt routing info messages:
230 acpi.debug_layer=0x400000 acpi.debug_level=0x4
231 Enable all messages related to ACPI hardware: 234 Enable all messages related to ACPI hardware:
232 acpi.debug_layer=0x2 acpi.debug_level=0xffffffff 235 acpi.debug_layer=0x2 acpi.debug_level=0xffffffff
233 236