Hi,
On Wednesday 25 November 2009 10:01:18 Zhang Rui wrote:
>
> Introduce a new debugfs I/F (/sys/kernel/debug/acpi/custom_method)for ACPI,
> which can be used to override an ACPI control method at runtime.
Cool.
> We can use this to debug the AML code level bugs instead of overriding the
> whole DSDT table, without rebuilding/rebooting kernel any more.
One thing:
this should taint the kernel in the same way as done here?:
drivers/acpi/osl.c: add_taint(TAINT_OVERRIDDEN_ACPI_TABLE);
> Detailed description about how to use this debugfs I/F is stated in
> Documentation/acpi/method-override.txt
That nicely explains why it's urgent to provide easy methods to
the users to play with and test things without the need of recompiling
a kernel.
Thomas
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