Date: Fri, 27 Mar 2009 11:34:28 +1030 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: freebsd-stable@freebsd.org Cc: Ronald Klop <ronald-freebsd8@www.klop.ws>, Andriy Gapon <avg@icyb.net.ua> Subject: Re: remote debug over usb vs. old serial cable? Message-ID: <200903271134.37209.doconnor@gsoft.com.au> In-Reply-To: <49CB8FAC.4080505@icyb.net.ua> References: <op.uregvzva8527sy@82-170-177-25.ip.telfort.nl> <20090326130634.GA36270@owl.midgard.homeip.net> <49CB8FAC.4080505@icyb.net.ua>
next in thread | previous in thread | raw e-mail | index | archive | help
--nextPart1388573.p1CdP6n8rO Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Friday 27 March 2009 00:52:36 Andriy Gapon wrote: > > USB won't work for that purpose. It requires far too much kernel suppo= rt > > to be useful after a panic. > > Erik, > in fact, there is a special USB (EHCI) mode for such purposes: > http://www.coreboot.org/EHCI_Debug_Port That's pretty neat :) The dongle is pretty expensive relative to the cost of a Firewire card thou= gh. > But that requires some special HW in addition to SW support which our > doesn't have. > > BTW, Ronald, it is possible that you might have a serial header on > motherboard which is not connected to any traditional port. You could also purchase a Firewire PCI (or PCIe) card, they aren't very=20 expensive. =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart1388573.p1CdP6n8rO Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iD8DBQBJzCYe5ZPcIHs/zowRAvfbAJsGC8qLv8P2EHKblGj5HGqbNVvyPwCfYvc7 clSIAeMlu7vLAkgFG34uM48= =hLUj -----END PGP SIGNATURE----- --nextPart1388573.p1CdP6n8rO--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200903271134.37209.doconnor>