From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
Subject: [Bug 29809] New: Random hangs on GeForce 8400M GS (NV86)
Date: Wed, 25 Aug 2010 21:00:11 -0700 (PDT)
Message-ID: <bug-29809-8800@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=29809

           Summary: Random hangs on GeForce 8400M GS (NV86)
           Product: xorg
           Version: 7.5
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: mschiffer-Nyw9WiXk/RKXhJHkyCwd5uTW4wlIGRCZ@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


With the current nouveau git drm (4a97c59) my X frequently freezes (pointer
still moves, but everything else hangs), often within few minutes after
starting X, sometimes much later. My kernel log shows a PFIFO_DMA_PUSHER on Ch
2, the Xorg logs a EQ overflow.

I'm rather confident that commit 5837471 is causing my problems (although
bisecting was very hard as the hangs occur randomly). With the commit before, I
haven't had any problems yet, and reverting this commit on current HEAD seems
to solve the problem, too.

The revert seems also to fix s2ram, which is also broken in current HEAD for me
(on resume I get a black screen with the pointer, in contrast to the other
hangs the pointer still changes when moving over a text field etc.).

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