To provide compatibilty with SN kernels that do and do not
have ACPI IO support, the SN PROM must build different
versions of some ACPI tables based on which kernel is booting.
As such, the tables may have to change at kernel boot time.
By default, prior to kernel boot, the PROM builds an empty
DSD
so will the 1st acpi_table_init() always fail -- even
on future machines?
-Len
On Wednesday 28 February 2007 18:47, John Keller wrote:
> To provide compatibilty with SN kernels that do and do not
> have ACPI IO support, the SN PROM must build different
> versions of some ACPI tables based on whic
Len,
The call itself does not fail. acpi_table_init() has no problem
processing an empty DSDT. In fact, this is exactly what happens
today when booting our non-acpi capable kernel. The second call is
needed in the case of booting an acpi capable kernel. We need to
rebuild the DSDT and SSDT, and be
