Re: ACPI Exception AE_NO_MEMORY

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Tue, Apr 20, 2010 at 02:17:21PM +0300, Jukka Marin wrote:
> On Tue, Apr 20, 2010 at 01:38:53PM +0300, Jukka Ruohonen wrote:
> > On Tue, Apr 20, 2010 at 01:05:02PM +0300, Jukka Marin wrote:
> > > A question: Can a RAM failure (parity error) cause an ACPI exception?  If 
> > > not,
> > > what are the common reasons for such exceptions?
> > 
> > As I noted already, this is malloc(9) returning ENOMEM and ACPI complaining
> > about it (ENOMEM -> AE_NO_MEMORY). The path where this occurs in ACPI is
> > related to interrupts, so it is pretty serious as far as ACPI is concerned.
> 
> So could it be a RAM ECC failure or some such?  What is supposed to happen
> after an ECC failure?

I've seen BIOS configuration options about this. Usually it triggers
an NMI, but I think it could also be configured to trigger an
ACPI event, or to be handled by the BMC.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--