Re: [PATCH] x86: Add reboot quirk for Dell Precision M4600

From: Ingo Molnar
Date: Sat Aug 06 2011 - 02:57:41 EST



* Mel Gorman <mgorman@xxxxxxx> wrote:

> ACPI reboot does not work for Dell Precision M4600. Detect this
> machine via DMI and force the use of the PCI reboot method.
>
> Reported-and-tested-by: Bruno Friedmann <bruno@xxxxxxxxxxx>
> Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
> ---
> arch/x86/kernel/reboot.c | 9 +++++++++
> 1 files changed, 9 insertions(+), 0 deletions(-)

Weird - ACPI is the default Windows method of reboot - how come it
does not work on that box? Does Windows work around this specific
machine (unlikely), or is our ACPI boot sequence not 100% compatible
with the Windows method (more likely IMO)?

Thanks,

Ingo
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