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Date:      Sun, 6 Oct 2002 20:26:03 -0400 (EDT)
From:      Robert Watson <rwatson@freebsd.org>
To:        Carl Schmidt <carl@slackerbsd.org>
Cc:        Seth Hieronymus <sethh@principia.edu>, freebsd-current@freebsd.org
Subject:   Re: My problems with GEOM
Message-ID:  <Pine.NEB.3.96L.1021006202348.10328A-100000@fledge.watson.org>
In-Reply-To: <20021006235240.GB62367@carbon.slackerbsd.org>

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On Sun, 6 Oct 2002, Carl Schmidt wrote:

> > Mounting root from ufs:/dev/ad0s1a
> > 
> > and hangs -- only a physical reset works.  However, breaking into the
> > debugger, and running a trace, I get (hand-copied):

Hmm.  I actually ran into this problem on some diskless booting boxes, but
it went away so I assumed it was a local nit since I was messing with VFS
substantially on the boxes in question.  Apparently not.  (This was a
month or two ago, and quite pre-GEOM as default). 

Here's my first suggestion: the root file system is mounted by the init
process--your trace shows the stack of the current interrupt thread for
keyboard I/O, since that's the foreground thread when you break to the
debugger.  Try using 'trace 1' to trace init instead; also, if you could
provide the output from the ddb ps command, that would be very useful. 
BTW, you really want to be using a serial console for this sort of thing
-- copying stuff out by hand is (a) a pain, and (b) very error prone :-).

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert@fledge.watson.org      Network Associates Laboratories



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