From owner-freebsd-x11@FreeBSD.ORG Sat Sep 26 19:36:49 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 B4231106566B for ; Sat, 26 Sep 2009 19:36:49 +0000 (UTC) (envelope-from rnoland@FreeBSD.org) Received: from gizmo.2hip.net (gizmo.2hip.net [64.74.207.195]) by mx1.freebsd.org (Postfix) with ESMTP id 5FCC78FC08 for ; Sat, 26 Sep 2009 19:36:49 +0000 (UTC) Received: from [192.168.1.4] (adsl-241-169-177.bna.bellsouth.net [74.241.169.177]) (authenticated bits=0) by gizmo.2hip.net (8.14.3/8.14.3) with ESMTP id n8QJak6o034431 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO); Sat, 26 Sep 2009 15:36:47 -0400 (EDT) (envelope-from rnoland@FreeBSD.org) From: Robert Noland To: Richard Kolkovich In-Reply-To: <1253977337.2048.17.camel@balrog.2hip.net> References: <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> <20090926001158.GA42914@divination.portal.sigil.org> <1253925689.2065.81.camel@balrog.2hip.net> <20090926045706.GB42914@divination.portal.sigil.org> <1253977337.2048.17.camel@balrog.2hip.net> Content-Type: text/plain Organization: FreeBSD Date: Sat, 26 Sep 2009 14:36:41 -0500 Message-Id: <1253993801.2048.295.camel@balrog.2hip.net> Mime-Version: 1.0 X-Mailer: Evolution 2.26.3 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.0 required=5.0 tests=AWL,BAYES_00,RCVD_IN_PBL, RDNS_DYNAMIC,SPF_SOFTFAIL autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on gizmo.2hip.net 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 19:36:49 -0000 On Sat, 2009-09-26 at 10:02 -0500, Robert Noland wrote: > On Fri, 2009-09-25 at 23:57 -0500, Richard Kolkovich wrote: > > On Fri, Sep 25, 2009 at 07:41:29PM -0500, Robert Noland wrote: > > > We might go down that path... But, I've had an idea. I'll try and whip > > > up a test client that bypasses all of X and just exercises drm. We can > > > see if it still seems to corrupt things. The evidence so far suggests > > > that it should, but it should rule out any races. One thing you might > > > try as a test is to disable SMP just to see if that helps. > > > > > > > Disabling SMP did not help. I'll await the test client... > > Ok, attached is a really simple client that will allocate 32MB of > scatter-gather memory and map a 1MB ring buffer out of that. The > "contents" values should always be 0. Build the client with: > > gcc -O2 -pipe -I/usr/local/include -I/usr/local/include/drm > -L/usr/local/lib -ldrm -o drm-test drm-test.c > > To perform the test, you will need to boot up in console. (No X) > Manually kldload the radeon driver and then as root execute drm-test. Since nothing that we are doing here is actually device specific, I loaded this up on the VIA VX800 board, which is an i386 build. Everything works fine. Sample *good* output: gopher% gcc -O2 -pipe -I/usr/local/include -I/usr/local/include/drm -L/usr/local/lib -ldrm -o drm-test drm-test.c gopher% sudo ./drm-test Allocated 32MB with handle=0x00000000e82b8000 Added 1024KB map for ring buffer with handle=0x00000000e82b8000 ring=0x00000028300000, contents=0x0000000000000000 robert. -- Robert Noland FreeBSD