From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 55692] [KMS][Cayman] Garbled screen and oops with 6950 with linus git from 20121006 (3.7-rc0) Date: Wed, 17 Oct 2012 03:44:21 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1422617181==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id C71C69E798 for ; Tue, 16 Oct 2012 20:44:20 -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 --===============1422617181== Content-Type: multipart/alternative; boundary="1350445460.dE7CDF0.26898"; charset="us-ascii" --1350445460.dE7CDF0.26898 Date: Wed, 17 Oct 2012 03:44:20 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=55692 --- Comment #26 from Alexandre Demers --- (In reply to comment #23) > Created attachment 68623 [details] [review] > Test patch. > > VM is definitely enabled, otherwise you won't got that error in the first > place. > > Ok let's try to narrow down that bug a bit more, please apply the attached > test patch and see what happens. > > If the GPU hang vanished we indeed have a syncing issue, but not the PFP > sync. It is and it is not. What I mean is concerning comment 17 "So i did a git log --graph --oneline --all and started to git checkout between those two commits, starting from 2d2f1fd to de92b7a are bad and with commit "ef557ea winsys/radeon: disable virtual memory on Cayman" it started working." If the variable "RADEON_VA" is not set or doesn't exist, from the point commit "ef557ea" kicks in, VM gets disabled. Before that commit, VM is always enabled; from that point, we must be careful. If we want to test after commit "ef557ea" with VM enabled, "RADEON_VA" MUST be set, otherwise it will be disable and will hide the bug. -- You are receiving this mail because: You are the assignee for the bug. --1350445460.dE7CDF0.26898 Date: Wed, 17 Oct 2012 03:44:20 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 26 on bug 55692 from 
(In reply to comment #23)
> Created attachment 68623 [details] [review] [review]
> Test patch.
> 
> VM is definitely enabled, otherwise you won't got that error in the first
> place.
> 
> Ok let's try to narrow down that bug a bit more, please apply the attached
> test patch and see what happens.
> 
> If the GPU hang vanished we indeed have a syncing issue, but not the PFP
> sync.

It is and it is not. What I mean is concerning comment 17 "So i did a git log
--graph --oneline --all and started to git checkout between those two commits,
starting from 2d2f1fd to de92b7a are bad and with commit "ef557ea
winsys/radeon: disable virtual memory on Cayman" it started working."

If the variable "RADEON_VA" is not set or doesn't exist, from the point commit
"ef557ea" kicks in, VM gets disabled. Before that commit, VM is always enabled;
from that point, we must be careful. If we want to test after commit "ef557ea"
with VM enabled, "RADEON_VA" MUST be set, otherwise it will be disable and will
hide the bug.

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