Debug Statements
configname: CONFIG_ACPI_DEBUG
Linux Kernel Configuration
└─>Power management and ACPI options
└─>ACPI (Advanced Configuration and Power Interface) Support
└─>Debug Statements
In linux kernel since version 4.2 (release Date: 2015-08-30)
The ACPI subsystem can produce debug output. Saying Y enables this
output and increases the kernel size by around 50K.
Use the acpi.debug_layer and acpi.debug_level kernel command-line
parameters documented in <a href="https://www.kernel.org/doc/Documentation/firmware-guide/acpi/debug.rst">Documentation/firmware-guide/acpi/debug.rst</a> and <a href="https://www.kernel.org/doc/Documentation/admin-guide/kernel-parameters.rst">Documentation/admin-guide/kernel-parameters.rst</a> to control the type and
amount of debug output.
output and increases the kernel size by around 50K.
Use the acpi.debug_layer and acpi.debug_level kernel command-line
parameters documented in <a href="https://www.kernel.org/doc/Documentation/firmware-guide/acpi/debug.rst">Documentation/firmware-guide/acpi/debug.rst</a> and <a href="https://www.kernel.org/doc/Documentation/admin-guide/kernel-parameters.rst">Documentation/admin-guide/kernel-parameters.rst</a> to control the type and
amount of debug output.