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| author | Len Brown <len.brown@intel.com> | 2010-02-19 00:09:22 -0500 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-03-14 20:58:38 -0400 |
| commit | 68ca406930d6380b3be7ada5f15fcf85bfcbd552 (patch) | |
| tree | 866864defb2733d71bce04e342638c60f92fb928 /Documentation/kernel-parameters.txt | |
| parent | 4c81ba4900ab4eb24c7d2ba1aca594c644b6ce4c (diff) | |
| download | lwn-68ca406930d6380b3be7ada5f15fcf85bfcbd552.tar.gz lwn-68ca406930d6380b3be7ada5f15fcf85bfcbd552.zip | |
ACPI: delete the "acpi=ht" boot option
acpi=ht was important in 2003 -- before ACPI was
universally deployed and enabled by default in
the major Linux distributions.
At that time, there were a fair number of people who
or chose to, or needed to, run with acpi=off,
yet also wanted access to Hyper-threading.
Today we find that many invocations of "acpi=ht"
are accidental, and thus is it possible that it
is doing more harm than good.
In 2.6.34, we warn on invocation of acpi=ht.
In 2.6.35, we delete the boot option.
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 3bc48b0bd3a9..41b924ff0b51 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -143,11 +143,10 @@ and is between 256 and 4096 characters. It is defined in the file acpi= [HW,ACPI,X86] Advanced Configuration and Power Interface - Format: { force | off | ht | strict | noirq | rsdt } + Format: { force | off | strict | noirq | rsdt } force -- enable ACPI if default was off off -- disable ACPI if default was on noirq -- do not use ACPI for IRQ routing - 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 |