From owner-freebsd-ppc@FreeBSD.ORG  Wed Oct 12 20:32:04 2005
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From: John Baldwin <jhb@freebsd.org>
To: freebsd-ppc@freebsd.org
Date: Wed, 12 Oct 2005 15:53:12 -0400
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Cc: Peter Grehan <grehan@freebsd.org>
Subject: Re: Panic on boot from CD
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On Monday 10 October 2005 01:15 am, Peter Grehan wrote:
> Hi Tim,
>
> > Greetings all, Having an issue booting for the install cd
> > 6.0-20050518-SNAP-powerpc-disc1.iso.
> >
> > I get the prompt to press enter to boot (booting /boot/kernel/kernel in x
> > seconds), and if I hit enter or let it boot automatically, I get:
> >
> > KDB: debugger backends: ddb
> >
> > KDB: current backend: ddb
> >
> > Panic: mutex All locks list not owned at
> > /usr/src/sys/kern/kern_mutex.c:299
> >
> > KDB: enter: panic
>
>   ...
>
> > Any thoughts? Thanks.
>
>   Would that be an eMac by any chance ? :)
>
>   I've yet to get to the bottom of this, though I have an idea or two as
> to why it's happening.
>
>   In the meantime, the workaround (at least on my ageing eMac), is to
> break into OpenFirmware (cmd-opt-o-f at the boot chime) and manually
> boot from the OpenFirmware prompt
>
>   0 > boot cd:,\boot\loader cd:0
>
> later,
>
> Peter.

Perhaps something is trying to do a mtx_init() or mtx_destroy() before 
mutex_init() has been called?

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org