------- Comment #6 from len.brown@... 2007-11-26 22:41 -------
The bug at hand is that Linux fails to boot into ACPI mode
if it finds an RSDP with an invalid checksum.
I belive that bug is fixed by the patch in comment #1,
which is in acpi-test, queued for 2.6.25.
If there are systems which have multiple valid RSDP's...
In the past Linux used the first on it found,
and after patch #1 is applied, we will continue to
use the first one found -- no change in behaviour there.
Using the common ACPICA code is the proper way to address
this issue. If the common ACPICA code is not correct,
then it must be fixed. Patching the old Linux routines
for this is not the right way to go.
RE: system with multiple _valid_ RSDP's...
Has such a system been found, or are you proposing that
we go fish for some? If we do go fishing, the patch
must apply on top of the patch in comment #1, also
it shouldn't add dmesg noise if it happens to find
redundant RSDPs that have the same (poingter) contents.
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