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From: Hans Petter Selasky <hselasky@c2i.net>
To: ticso@cicely.de
Date: Mon, 9 Jun 2008 21:17:54 +0200
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Cc: Perforce Change Reviews <perforce@freebsd.org>
Subject: Re: PERFORCE change 143121 for review
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Hi Bernd,

When I re-enabled:

options         PSEUDOFS

in my kernel configuration file, everything worked again!

--HPS

On Monday 09 June 2008, Bernd Walter wrote:
> On Sun, Jun 08, 2008 at 11:13:03PM +0200, Hans Petter Selasky wrote:
> > Hi,
> >
> > It might look like that my "init" executable in the file system is out of
> > date. The kernel boots fine up to the following point:
> >
> > Trying to mount root from ufs:/dev/md0
> > warning: no time-of-day clock registered, system time will not be set
> > accurately
> > Jun  4 20:32:47 init: login_getclass: unknown class 'daemon'
> > Fatal kernel mode data abort: 'Alignment Fault 3'
> > trapframe: 0xc67f7a24
>
> We've seen this at least on RM9200 from time to time - not sure about
> other arm.
> Try adding or removing a driver to your kernel and see if it helps.
> It's some kind of heisenbug, because a small unrelated change and the
> problem is away, which makes is hard to debug.
> See arm@ mail archives for more details.
> IIRC it happened earlier during boot, so this can still be something
> different after all.
> Even with an out of date init the kernel shouldn't panic with an
> alignment fault.