Re: ACPI ERROR SMBus or IPMI write requires Buff of len 66, found32...???? linux-3.0.0

From: Matthew Garrett
Date: Tue Nov 01 2011 - 10:43:18 EST


On Tue, Nov 01, 2011 at 08:05:49AM -0600, Bjorn Helgaas wrote:
> [+cc linux-acpi]
>
> On Mon, Oct 31, 2011 at 3:16 PM, Linda Walsh <lkml@xxxxxxxxx> wrote:
> >
> >
> > Was looking through boot log messages, and this one seemed 'new'...
>
> Can you confirm that this error did not occur on a previous version?
> What is the most recent version where it did not occur?

ACPI IPMI support was only added recently, so it's not surprising that
it didn't show up previously. The spec is quite clear that IPMI message
buffers should be 66 bytes, but a lot of firmware seems to disagree. Not
sure what the best thing to do here is.

--
Matthew Garrett | mjg59@xxxxxxxxxxxxx
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/