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Date:      Thu, 30 Sep 2010 16:19:01 -0700
From:      Jeremy Chadwick <freebsd@jdc.parodius.com>
To:        luke@hybrid-logic.co.uk
Cc:        stable@freebsd.org, team@hybrid-logic.co.uk, support@elastichosts.com
Subject:   Re: Problem running 8.1R on KVM with AMD hosts
Message-ID:  <20100930231901.GA30388@icarus.home.lan>
In-Reply-To: <1285873071.21063.786.camel@pow>
References:  <1285587910.31122.633.camel@pow> <4CA08D0D.4030406@icyb.net.ua> <1285595631.31122.809.camel@pow> <AANLkTimEp7ygn4GmmgHJwx-DgVzdwV5Gu4uXPBBXTAFC@mail.gmail.com> <1285601367.31122.909.camel@pow> <1285873071.21063.786.camel@pow>

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On Thu, Sep 30, 2010 at 07:57:51PM +0100, Luke Marsden wrote:
> Hi FreeBSD-stable,
> 
> > > 1. Please, build your kernel with debug symbols.
> > > 2. Show kgdb output
> 
> I could not convince the kernel to dump (it was looping forever but not
> panicing), but I have managed to compiled a kernel with debugging
> symbols and DDB which immediately drops into the debugger when the
> problem occurs, see screenshot at:
> 
>         http://lukemarsden.net/kvm-panic.png
> 
> Progress, I sense.
> 
> I tried typing 'panic' on the understanding that this should force a
> panic and cause it would dump core to the configured swap device (I have
> set dump* in /etc/rc.conf) so that I could get you the kgdb output, but
> it just looped back into the debugger.

Try "call doadump" instead.

-- 
| Jeremy Chadwick                                   jdc@parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |




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