From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 29389] [r300g] [bisected] hard locks in openarena with kernel
2.6.35
Date: Thu, 19 Aug 2010 07:05:58 -0700 (PDT)
Message-ID: <20100819140558.9DF1313012B@annarchy.freedesktop.org>
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https://bugs.freedesktop.org/show_bug.cgi?id=29389
--- Comment #1 from Giacomo Perale 2010-08-19 07:05:58 PDT ---
Created an attachment (id=37981)
View: https://bugs.freedesktop.org/attachment.cgi?id=37981
Review: https://bugs.freedesktop.org/review?bug=29389&attachment=37981
add parameter to disable polling
I came back from vacation and found a patch from Chris Wilson in dri-devel who
added a parameter to disable polling; since my bisection run pointed to the
commit who enabled polling as the origin of my problem, I quickly adapted the
patch to vanilla 2.6.35 to do some tests.
The patch is attached to this comment; to try it patch the kernel and boot with
drm_kms_helper.poll=0; be careful, without this parameter sometime X refused to
start here. Since this was only a test I didn't look too hard, I think it's
related to the slow work->workqueues conversion.
Anyway, with polling disabled I was able to play with openarena for about 15
minutes, while with polling (without the patch) I had a hardlock in 30-60s.
Since this could be important, I have a VGA/DVI card and I'm using the DVI
port, with nothing connected to the VGA port.
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