Re: Some sites don't work with Firefox (FC3)?

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On Tue, 28 Dec 2004 14:48:32 +0100, Alexander Dalloz <[email protected]> wrote:
> Am Di, den 28.12.2004 schrieb Travis Fraser um 14:30:
> > I remember reading somewhere on this list that for AMD cpu, the kernel
> > boot argument acpi=ht is equivalent to acpi=off.
> 
> > Travis Fraser <[email protected]>
> 
> Not really equivalent.
> 
> $ egrep -i 'ACPI|HT'
> /usr/src/linux-2.6.9-1.6_FC2/Documentation/kernel-parameters.txt
>         modprobe usbcore blinkenlights=1
>         usbcore.blinkenlights=1
>         ACPI    ACPI support is enabled.
>         acpi=           [HW,ACPI] Advanced Configuration and Power
> Interface
>                         Format: { force | off | ht | strict }
>                         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
>                                 strictly ACPI specification compliant.
>                         See also Documentation/pm.txt, pci=noacpi
> 
> Alexander
> 

Which means it is equivalent for AMD CPUs and Intel CPUs with no
HyperThreading :).  Actually, Dave, you should know that your computer
*was* shutting down, it was just not turning off.  From there you
could turn off the power without causing any harm.  This is a known
bug and only affects some computers and is a problem with the 2.6.9
kernels, and not specifically FC.  If you use ACPI (for example, if
this is a laptop), you might want to just deal with the problem.  If
you see no ill effects, go ahead and use "acpi=off" since there is no
advantage, as you said, to using acpi=ht with an AMD CPU.

Jonathan


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