http://bugzilla.kernel.org/show_bug.cgi?id=9444





------- Comment #8 from [EMAIL PROTECTED]  2007-11-27 01:29 -------
The patch in comment #1 has no problem for x86_64. But there is some problem
for x86_32 if the system supports the NUMA architecture.
In NUMA architecture the 32-bit OS will search SRAT table before initializing
bootmem memory allocator and SRAT table is gotten by calling
get_memcfg_from_srat, in which the function of acpi_find_rsdp is called.
Because the function of acpi_os_map_memory is used in the ACPICA code and
paging_init
should be called before using acpi_os_map_memory, the patch in comment #1 will
have some problems.

If the checksum should be verified for RSDP , we can modify the patch in
comment #4 for getting the rsdp with valid checksum.


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