Re: [PATCH] ACPI: Disable _GTS and _BFS support by default

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On Saturday 18 April 2009 05:51:42 Len Brown wrote:
> From: Len Brown <len.brown@xxxxxxxxx>
> 
> Executing BIOS code paths not exercised by Windows
> tends to get Linux into trouble.
Where do we know Windows does not use them?
Is that confirmed by a Windows developer or has this been
tried with KVM?
For the latter, it could be that these are only called under
certain circumstances.

> However, if a system does benefit from _GTS or _BFS,
> acpi.gts=1 an acpi.bfs=1 are now available to enable them.
If the systems works better it's probably a good idea to add
that patch, I'd just like to know how sure we can be that
Windows never calls these.

Thanks,

     Thomas

> http://bugzilla.kernel.org/show_bug.cgi?id=13041

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