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Date:      Fri, 14 Feb 2003 11:18:41 +0900
From:      Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
To:        Aurelien Nephtali <aurelien.nephtali@wanadoo.fr>
Cc:        Bruce Evans <bde@zeta.org.au>, Peter Wemm <peter@FreeBSD.org>, src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/kern kern_shutdown.c
Message-ID:  <ybssmurr4e6.wl@ett.sat.t.u-tokyo.ac.jp>
In-Reply-To: <20030213174200.GA14220@nebula.wanadoo.fr>
References:  <20030213125204.GA12333@nebula.wanadoo.fr> <20030214041205.X4349-100000@gamplex.bde.org> <20030213174200.GA14220@nebula.wanadoo.fr>

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At Thu, 13 Feb 2003 18:42:00 +0100,
Aurelien Nephtali wrote:
> 
> [1  <text/plain; us-ascii (quoted-printable)>]
> On Fri, Feb 14, 2003 at 04:35:12AM +1100, Bruce Evans wrote:
> > On Thu, 13 Feb 2003, Aurelien Nephtali wrote:
> > 
> > > It could be good now to log the backtrace :/
> > > When one occurs it goes nowhere so if you cannot copy it on the moment, it is
> > > lost forever (without talking about stopping the console and using Page UP and
> > > Page Down). Only the LOR is logged + 'Stack backtrace:'.
> > 
> > db_print_backtrace() never really worked, since ddb uses db_printf() but
> > ordinary printf() should be used (except when db_print_backtrace() is
> > actually from within ddb).
> > 
> > Workaround: use a serial console.
> 
> Serial consoles seem to be a good thing, only if a COM port is present ... :/
> If someone has set up a parallel console ... mail me please :)

I have set up a FireWire console, see the freebad-arch article I posted
recenty if you have two spare FireWire NICs.

http://people.freebsd.org/~simokawa/firewire/dcons-20030212.tar.gz

/\ Hidetoshi Shimokawa
\/  simokawa@sat.t.u-tokyo.ac.jp
PGP public key: http://www.sat.t.u-tokyo.ac.jp/~simokawa/pgp.html


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