tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ACPI: Improve acpi debug documentation
Now we use acpi.debug_level and acpi.debug_layer as kernel boot
parameters instead of acpi_dbg_level and acpi_dbg_layer.
Thanks to Andi Kleen for pointing it out.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
+26
-4
+26
-4
Documentation/kernel-parameters.txt
+26
-4
Documentation/kernel-parameters.txt
···
181
181
that require a timer override, but don't have
182
182
HPET
183
183
184
-
acpi_dbg_layer= [HW,ACPI]
184
+
acpi.debug_layer= [HW,ACPI]
185
185
Format: <int>
186
186
Each bit of the <int> indicates an ACPI debug layer,
187
187
1: enable, 0: disable. It is useful for boot time
188
188
debugging. After system has booted up, it can be set
189
-
via /proc/acpi/debug_layer.
189
+
via /sys/module/acpi/parameters/debug_layer.
190
+
CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
191
+
Available bits (add the numbers together) to enable debug output
192
+
for specific parts of the ACPI subsystem:
193
+
0x01 utilities 0x02 hardware 0x04 events 0x08 tables
194
+
0x10 namespace 0x20 parser 0x40 dispatcher
195
+
0x80 executer 0x100 resources 0x200 acpica debugger
196
+
0x400 os services 0x800 acpica disassembler.
197
+
The number can be in decimal or prefixed with 0x in hex.
198
+
Warning: Many of these options can produce a lot of
199
+
output and make your system unusable. Be very careful.
190
200
191
-
acpi_dbg_level= [HW,ACPI]
201
+
acpi.debug_level= [HW,ACPI]
192
202
Format: <int>
193
203
Each bit of the <int> indicates an ACPI debug level,
194
204
1: enable, 0: disable. It is useful for boot time
195
205
debugging. After system has booted up, it can be set
196
-
via /proc/acpi/debug_level.
206
+
via /sys/module/acpi/parameters/debug_level.
207
+
CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
208
+
Available bits (add the numbers together) to enable different
209
+
debug output levels of the ACPI subsystem:
210
+
0x01 error 0x02 warn 0x04 init 0x08 debug object
211
+
0x10 info 0x20 init names 0x40 parse 0x80 load
212
+
0x100 dispatch 0x200 execute 0x400 names 0x800 operation region
213
+
0x1000 bfield 0x2000 tables 0x4000 values 0x8000 objects
214
+
0x10000 resources 0x20000 user requests 0x40000 package.
215
+
The number can be in decimal or prefixed with 0x in hex.
216
+
Warning: Many of these options can produce a lot of
217
+
output and make your system unusable. Be very careful.
218
+
197
219
198
220
acpi_fake_ecdt [HW,ACPI] Workaround failure due to BIOS lacking ECDT
199
221