From mboxrd@z Thu Jan  1 00:00:00 1970
Message-Id: <1425144033.1689620.233666685.7FC04FA9@webmail.messagingengine.com>
From: Ramakrishnan Muthukrishnan <ram@rkrishnan.org>
To: 9fans@9fans.net
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Type: text/plain
In-Reply-To: <1424751634.3726089.231550869.3C972FA2@webmail.messagingengine.com>
References: <1423881735.1453671.227377753.47CA306F@webmail.messagingengine.com>
	<c4f7c074a94d997a943c58b50f51d8db@brasstown.quanstro.net>
	<2c5f91b0d593ba029b2bc1616de4aa6e@brasstown.quanstro.net>
	<1423980834.1913333.227665965.008E0348@webmail.messagingengine.com>
	<1424664412.3269829.231017329.7D71FA30@webmail.messagingengine.com>
	<cb8dd593d23f658009d570da1858bcf3@brasstown.quanstro.net>
	<1424751634.3726089.231550869.3C972FA2@webmail.messagingengine.com>
Date: Sat, 28 Feb 2015 22:50:33 +0530
Subject: Re: [9fans] 9atom installation report on Acer C710 Chromebook
Topicbox-Message-UUID: 46c9e1fe-ead9-11e9-9d60-3106f5b1d025

On Tue, Feb 24, 2015, at 09:50 AM, Ramakrishnan Muthukrishnan wrote:
> On Mon, Feb 23, 2015, at 07:39 PM, erik quanstrom wrote:
> > > > I see a crash elsewhere now. Tried installation 3 times again and all
> > > > crashed at different places.
> > > >
> > > > One of them is:
> > > >
> > > > rc: note: sys: trap: fault write addr=0x7ffffee00000 pc=0x20d790
> > > > rc 9024: suicide: sys: trap: ...
> > >
> > > Perhaps I should add that I tried the 386 install as well and that
> > > crashed randomly as well.
> >
> > that's quite wierd.  either (a) we're corrupting memory on a regular
> > basis, and your machine has an unfortunate memory layout that
> > gets hit by this issue, or (b) there actually is something special about
> > your machine.
> >
> > * is the internal disk presenting an ahci interface?
>
> I don't know. I will check today evening.
>
> > * have you tried memtest86.  i expect it to pass, but it's always good
> > to be sure.
>
> No, I haven't. I will do that too tonight.

Ran memtest86 (booted off a USB stick running grml) and it didn't show
any memory errors.

> > * can you point me at a specs page?
>
> <http://www.chromium.org/chromium-os/developer-information-for-chrome-os-devices/acer-c7-chromebook>
>
> The spec of my machine is this:
>
> - CPU - Celeron 1007u
> - 16GB SSD
> - 2 GB RAM
> (rest as per the above page)
>
> I modified the boot rom to have coreboot + seabios payload so that I can
> install a non-chromeos system. It used to happily run Debian but was
> locking up occasionally. Perhaps it has a bad RAM or a faulty DDR
> initialization in the coreboot.