Re: [PATCH -mm 7/8] ACPI hibernation: Utilize hardware signature

Pavel Machek
2008-07-10T08:33:30Z

> Subject: ACPI hibernation: Utilize hardware signature
>
> ACPI defines a hardware signature. BIOS calculates the signature
> according to hardware configure and if hardware changes while
> hibernated, the signature will change. In that case, S4 resume
> should fail.
>
> Still, there may be systems on which this mechanism does not work
> correctly, so it is better to provide a workaround for them. For
> this reason, add a new switch to the acpi_sleep= command line
> argument allowing one to disable hardware signature checking.
>
> Signed-off-by: Shaohua Li <shaohua.li@intel.com>
> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

ACK.

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