Date: Wed, 2 Jul 2003 16:30:08 -0700 (PDT) From: Nate Lawson <nate@root.org> To: John Baldwin <jhb@FreeBSD.org> Cc: current@freebsd.org Subject: RE: Updated ec-burst.diff patch Message-ID: <20030702162816.Q90754@root.org> In-Reply-To: <XFMail.20030702171018.jhb@FreeBSD.org> References: <XFMail.20030702171018.jhb@FreeBSD.org>
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On Wed, 2 Jul 2003, John Baldwin wrote:
> On 01-Jul-2003 Nate Lawson wrote:
> > Please download and try the new version. It correctly implements burst
> > mode to the best of the 2.0 spec. Like the previous message, please
> > report the appropriate dmesgs ("acpi_ec0*" and "EC Waited*") and any
> > errors or regression. I've tested "du -a /" while plugging/unplugging the
> > power cable on my laptop many times with no errors.
> >
> > I haven't received any feedback yet. This WILL hit the tree in a few
> > weeks because it fixes known problems. Test it now or test it then. :)
>
> This made my machine a LOT worse. Previously I would occasionally get
> failed EcRead's do to timeout reading the battery and thermal status after
> the machine had been up for a while, but battery status still worked.
> Setting the event_driven tunable made no difference. With this patch, the
> EC is very, very broke. I now get spammed during bootup with a flood of
> failures from EcCommand:
>
> EC Waited max 16 cycles, event occurred
> acpi_ec0: EcCommand: no response to 80, disabling burst mode
It appears your machine does not properly support burst mode. I suspected
that may be the case, which is what I was checking. I'll be doing some
more work on the patch and post it again.
> This has seriously hosed my machine.
Um, you can go back to the old acpi module and I doubt it caused any loss.
Thanks for testing.
-Nate
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