From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 67276] kernel-3.11 [drm:r600_uvd_ring_test] *ERROR* radeon: ring 5 test failed (0xCAFEDEAD) Date: Fri, 26 Jul 2013 15:00:14 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1581723761==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 4A1B0E5FEA for ; Fri, 26 Jul 2013 08:00:14 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1581723761== Content-Type: multipart/alternative; boundary="1374850814.427E1.15522"; charset="us-ascii" --1374850814.427E1.15522 Date: Fri, 26 Jul 2013 15:00:14 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=67276 --- Comment #14 from Alex Deucher --- (In reply to comment #13) > > I cannot forcibly trigger the problem. That's why I'm hoping for more > detailed debug messages. Maybe something connected with ring-testing or > maybe data feeding for those rings or anything that hs to do with the ring. > > I'm also wondering why the problem don't appear when I restart the pc? Is it > some kind of a racing condition? How can I get the info that's in the ring > at the time the error occurs? How is the ring testing done? I'm not sure. I've never seen the problem. It could be a problem with another one of the patches. I've never tested backporting the patches to 3.10. If you don't have problems with 3.9 or 3.11, it's hard to say. The ring testing happens when we initially set up the ring. The basic idea is to clear a scratch register or memory buffer to a known value, then write a new value to that register or buffer using the ring. When the ring is done if the new value isn't there, the ring isn't working properly. -- You are receiving this mail because: You are the assignee for the bug. --1374850814.427E1.15522 Date: Fri, 26 Jul 2013 15:00:14 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 14 on bug 67276 from 
(In reply to comment #13)
> 
> I cannot forcibly trigger the problem. That's why I'm hoping for more
> detailed debug messages. Maybe something connected with ring-testing or
> maybe data feeding for those rings or anything that hs to do with the ring.
> 
> I'm also wondering why the problem don't appear when I restart the pc? Is it
> some kind of a racing condition? How can I get the info that's in the ring
> at the time the error occurs? How is the ring testing done?

I'm not sure.  I've never seen the problem.  It could be a problem with another
one of the patches.  I've never tested backporting the patches to 3.10.  If you
don't have problems with 3.9 or 3.11, it's hard to say.

The ring testing happens when we initially set up the ring.  The basic idea is
to clear a scratch register or memory buffer to a known value, then write a new
value to that register or buffer using the ring.  When the ring is done if the
new value isn't there, the ring isn't working properly.

You are receiving this mail because:
  • You are the assignee for the bug.
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