Date: Sat, 26 Sep 2009 10:02:17 -0500 From: Robert Noland <rnoland@FreeBSD.org> To: Richard Kolkovich <sarumont@sigil.org> Cc: freebsd-x11@freebsd.org Subject: Re: HD4550 DRI issues Message-ID: <1253977337.2048.17.camel@balrog.2hip.net> In-Reply-To: <20090926045706.GB42914@divination.portal.sigil.org> 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>
next in thread | previous in thread | raw e-mail | index | archive | help
--=-iuQD1r1McNreZk7d9da1 Content-Type: text/plain Content-Transfer-Encoding: 7bit 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. robert. > > robert. > > > > -- > > Robert Noland <rnoland@FreeBSD.org> > > FreeBSD > > > -- Robert Noland <rnoland@FreeBSD.org> FreeBSD --=-iuQD1r1McNreZk7d9da1--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?1253977337.2048.17.camel>