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| author | Zhao Yakui <yakui.zhao@intel.com> | 2008-12-17 16:55:18 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-01-09 01:41:58 -0500 |
| commit | 237889bf0a62f1399fb2ba0c2a259e6a96597131 (patch) | |
| tree | 248d6bf6e4e60c8760b9a2b6ba2e788b70e24c76 /Documentation/kernel-parameters.txt | |
| parent | 13b40a1a065824d2d4e55c8b48ea9f3f9d162929 (diff) | |
| download | lwn-237889bf0a62f1399fb2ba0c2a259e6a96597131.tar.gz lwn-237889bf0a62f1399fb2ba0c2a259e6a96597131.zip | |
ACPI : Use RSDT instead of XSDT by adding boot option of "acpi=rsdt"
On some boxes there exist both RSDT and XSDT table. But unfortunately
sometimes there exists the following error when XSDT table is used:
a. 32/64X address mismatch
b. The 32/64X FACS address mismatch
In such case the boot option of "acpi=rsdt" is provided so that
RSDT is tried instead of XSDT table when the system can't work well.
http://bugzilla.kernel.org/show_bug.cgi?id=8246
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
cc:Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index c9115c1b672c..136f02842de9 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -139,6 +139,7 @@ and is between 256 and 4096 characters. It is defined in the file ht -- run only enough ACPI to enable Hyper Threading strict -- Be less tolerant of platforms that are not strictly ACPI specification compliant. + rsdt -- prefer RSDT over (default) XSDT See also Documentation/power/pm.txt, pci=noacpi |