Subject: Re: Bogus ACPI battery information in recent current
To: None <current-users@NetBSD.org>
From: Joerg Sonnenberger <firstname.lastname@example.org>
Date: 12/17/2007 20:18:23
On Mon, Dec 17, 2007 at 12:22:50PM -0500, Steven M. Bellovin wrote:
> On Mon, 17 Dec 2007 13:50:11 +0100
> Joerg Sonnenberger <email@example.com> wrote:
> > On Sat, Dec 15, 2007 at 06:42:24PM +0000, Steven M. Bellovin wrote:
> > > I think I'm still seeing some delays, though I haven't monitored
> > > that closely. I did run 'envstat -i 5' for about 45 minutes, with
> > > no failures of battery charge level or state.
> > Battery reading can take a long time. That was part of the problem.
> How long should be considered normal?
With broken ECs, it was taking over a second to send the interrupt (the
original problem here). Even without that, I have times in the hundred
milisecond range already. Note that T42 and R52 had a bunch of very
broken EC firmware releases. I could kill the power button completely by
spinning on the EC :-(
> > envstat will normally take care of that, but the data will be slightly
> > stale.
> How stale?
IIRC it updates it between 10 and 15sec, normally.