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Date:      Thu, 24 Jan 2013 17:18:48 +0100
From:      Pawel Jakub Dawidek <pjd@FreeBSD.org>
To:        Jung-uk Kim <jkim@FreeBSD.org>
Cc:        current@FreeBSD.org
Subject:   Re: ACPI panic on unplugging the power cord.
Message-ID:  <20130124161848.GA2386@garage.freebsd.pl>
In-Reply-To: <51008661.4060006@FreeBSD.org>
References:  <20130122175629.GA1714@garage.freebsd.pl> <51008661.4060006@FreeBSD.org>

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On Wed, Jan 23, 2013 at 07:54:57PM -0500, Jung-uk Kim wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>=20
> On 2013-01-22 12:56:29 -0500, Pawel Jakub Dawidek wrote:
> > I just upgraded to HEAD today and was wondering what will explode.=20
> > Now I know.
> >=20
> > When I unplug power cord from my laptop, ACPI panics. Pictures
> > here:
> >=20
> > http://people.freebsd.org/~pjd/misc/acpi_panic_0.jpg=20
> > http://people.freebsd.org/~pjd/misc/acpi_panic_1.jpg
> >=20
> > Let me know if you need more info.
>=20
> Can you please try the attached patch?  It is also available from here:
>=20
> http://people.freebsd.org/~jkim/utcache.diff
>=20
> Please note the patch may or may not fix the problem but I think I
> found an ancient bug. :-(

This patch didn't fix the panic:

	http://people.freebsd.org/~pjd/misc/acpi_unplug_panic_0.jpg
	http://people.freebsd.org/~pjd/misc/acpi_unplug_panic_1.jpg

In the meantime I found two other panics.

One is when I leave laptop idle for some time (few hours?):

	http://people.freebsd.org/~pjd/misc/acpi_idle_panic_0.jpg
	http://people.freebsd.org/~pjd/misc/acpi_idle_panic_1.jpg

And when is when I boot laptop without power connected and I connect the
power:

	http://people.freebsd.org/~pjd/misc/acpi_power_connect_panic_0.jpg
	http://people.freebsd.org/~pjd/misc/acpi_power_connect_panic_1.jpg

BTW. On the acpi_power_connect_panic_0.JPG photo, at the top of the
screen you can see error messages that are logged every second when I
have power disconnected. This is not a new problem. I had this problem
when I bought this laptop, but now that I'm reporting those bugs, I can
as well let you know about this one.

I'm running this on Thinkpad T530.

I understand that those problems are specific to my laptop and that on
your laptop all of the above work just fine?

--=20
Pawel Jakub Dawidek                       http://www.wheelsystems.com
FreeBSD committer                         http://www.FreeBSD.org
Am I Evil? Yes, I Am!                     http://tupytaj.pl

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