From owner-freebsd-x11@FreeBSD.ORG Sat Sep 26 00:13:02 2009 Return-Path: Delivered-To: freebsd-x11@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 95545106566B; Sat, 26 Sep 2009 00:13:02 +0000 (UTC) (envelope-from sarumont@sigil.org) Received: from mail.sigil.org (mail.sigil.org [208.86.227.164]) by mx1.freebsd.org (Postfix) with ESMTP id 59C568FC17; Sat, 26 Sep 2009 00:13:02 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mail.sigil.org (Postfix) with ESMTP id E1D28C0352; Fri, 25 Sep 2009 18:30:24 -0500 (CDT) X-Virus-Scanned: amavisd-new at sigil.org Received: from mail.sigil.org ([127.0.0.1]) by localhost (mail.sigil.org [127.0.0.1]) (amavisd-new, port 10024) with LMTP id f7w0Yw+Wfjlm; Fri, 25 Sep 2009 18:30:18 -0500 (CDT) Received: from divination.portal.sigil.org (ip72-202-157-83.ks.ks.cox.net [72.202.157.83]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.sigil.org (Postfix) with ESMTPSA id 48AFDC0351; Fri, 25 Sep 2009 18:30:16 -0500 (CDT) Received: by divination.portal.sigil.org (sSMTP sendmail emulation); Fri, 25 Sep 2009 19:11:59 -0500 From: "Richard Kolkovich" Date: Fri, 25 Sep 2009 19:11:59 -0500 To: Robert Noland Message-ID: <20090926001158.GA42914@divination.portal.sigil.org> References: <20090923210626.GC46493@magus.portal.sigil.org> <1253741283.2031.334.camel@balrog.2hip.net> <20090924145417.GA2539@magus.portal.sigil.org> <1253812603.2031.1528.camel@balrog.2hip.net> <1253814434.2031.1561.camel@balrog.2hip.net> <20090924181427.GD2539@magus.portal.sigil.org> <20090925143910.GD61689@divination.portal.sigil.org> <1253897144.2065.150.camel@balrog.2hip.net> <20090925173416.GF61689@divination.portal.sigil.org> <1253915723.2145.53.camel@balrog.2hip.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="AhhlLboLdkugWU4S" Content-Disposition: inline In-Reply-To: <1253915723.2145.53.camel@balrog.2hip.net> X-OS: FreeBSD divination 8.0-BETA3 i386 X-Mailer: Mutt 1.5.20 (2009-06-14) X-Composed-With: vim X-PGP-Key: http://sarumont.sigil.org/pubkey.asc User-Agent: Mutt/1.5.20 (2009-06-14) Cc: freebsd-x11@freebsd.org Subject: Re: HD4550 DRI issues X-BeenThere: freebsd-x11@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: X11 on FreeBSD -- maintaining and support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 26 Sep 2009 00:13:02 -0000 --AhhlLboLdkugWU4S Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Sep 25, 2009 at 04:55:23PM -0500, Robert Noland wrote: > So, things are all correct at this point... and not much happens between > here and the userland print that show corrupted values. Basically all > that happens is an mmap to userspace and print the values from the > userspace perspective... You're not the first report that I have had of > this. (It doesn't appear to be r600 related at all, IIRC prior reports > were on like 9200's) I think it is restricted to PCI/PCI-E radeons, > though given where it appears to be happening I don't see any reason > that it couldn't effect other cards as well. I'm really not certain how > to move forward debugging really, without being able to reproduce it and > break out into gdb to try and inspect memory. There is something > "special" about your setup, since this seems to be a relatively rare > issue. The only other thing that I can think of to do, is to start > adding a bunch of debugging into the mmap routines, but that is going to > get really noisy. >=20 > robert. >=20 Awesome. :-\ If you want to hook up gdb, I can create a shell account for you to do so. = =20 Aside from that, I'm not sure how to proceed. If it's happened on cards as= old as 9200s, I=20 probably won't have much luck with any other radeon card with my current se= tup. =20 --=20 Richard Kolkovich sarumont@sigil.org --AhhlLboLdkugWU4S Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iEYEARECAAYFAkq9XE0ACgkQfXtD1KVAIbCvbwCfZsQaEDhCRpBim0nlcby6LZGc Pn0AoJHHx9nLvTDa464WQec9z2+De9vd =8hYr -----END PGP SIGNATURE----- --AhhlLboLdkugWU4S--