Date: Wed, 08 Sep 2004 08:56:24 +0200 From: Andreas Kohn <andreas.kohn@gmx.net> To: Marcel Moolenaar <marcel@xcllnt.net> Cc: freebsd-alpha@freebsd.org Subject: Re: 5.3-BETA3 and tga... Message-ID: <1094626584.59700.5.camel@klamath.ankon.de.eu.org> In-Reply-To: <20040908024119.GA7290@alpha.pn.xcllnt.net> References: <1094587559.845.4.camel@klamath.ankon.de.eu.org> <Pine.LNX.4.33.0409072211070.24958-100000@servww6.ww.uni-erlangen.de> <20040907211357.GA96722@ns1.xcllnt.net> <1094592557.845.7.camel@klamath.ankon.de.eu.org> <20040908024119.GA7290@alpha.pn.xcllnt.net>
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--=-pgluFFoXO8nqWvY+8TVp Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Wed, 2004-09-08 at 04:41, Marcel Moolenaar wrote: > On Tue, Sep 07, 2004 at 11:29:17PM +0200, Andreas Kohn wrote: > > >=20 > > > Some background: The machine check is caused by the load prior to > > > the and instruction and it's this load that used to cause a MMU > > > fault. The load is the very first register access for the TGA card. > > > I'll see if newbusification makes a difference... > >=20 >=20 > I did a quick experiment and it looks newbusification will solve the > problem. Of course this opens pandora's box. The whole frame buffer > code is unsuitable of being newbusified. By design, I might add. It'll > be a lot of work. I think a kluge is called for but I'm not entirely > sure it's something I want or should spend my time on. I need to give > it some thought... Hi, what about the easiest kludge of all: Remove tga from GENERIC? With tga in GENERIC, FreeBSD is unusable, even if one doesn't want to use the card. Without it, users would at least be able to boot.=20 Perhaps adding a fake tga driver which tells the user about the problems: --- tga0: <DEC TGA (21030) 2D Graphics Accelerator> mem 0x88000000-0x8fffffff irq 9 at device 13.0 on pci0 tga0: WARNING: TGA support disabled, it is broken. See freebsd-alpha@freebsd.org --- My 2cents, Andreas --=-pgluFFoXO8nqWvY+8TVp Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQBBPq0YYucd7Ow1ygwRApaKAKCB8tZJ62ycZE70mcu0Q6ORus56fACgkesg TkK20AZ9LjcrPeWQ/a33cwA= =xFtp -----END PGP SIGNATURE----- --=-pgluFFoXO8nqWvY+8TVp--
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